Deferred
objects are
signals that a function you have called does not yet have the data you want
available. When a function returns a Deferred object, your calling function
attaches callbacks to it to handle the data when available.
This document addresses the other half of the question: writing functions that return Deferreds, that is, constructing Deferred objects, arranging for them to be returned immediately without blocking until data is available, and firing their callbacks when the data is available.
This document assumes that you are familiar with the asynchronous model used by Twisted, and with using deferreds returned by functions .
Class overview
This is an overview API reference for Deferred from the point of creating a Deferred and firing its callbacks and errbacks. It is not meant to be a substitute for the docstrings in the Deferred class, but can provide guidelines for its use.
There is a parallel overview of functions used by calling function which the Deferred is returned to at Using Deferreds.
Basic Callback Functions
-
callback(result)
Run success callbacks with the given result. This can only be run once. Later calls to this or
errback
will raisetwisted.internet.defer.AlreadyCalledError
. If further callbacks or errbacks are added after this point, addCallbacks will run the callbacks immediately. -
errback(failure)
Run error callbacks with the given failure. This can only be run once. Later calls to this or
callback
will raisetwisted.internet.defer.AlreadyCalledError
. If further callbacks or errbacks are added after this point, addCallbacks will run the callbacks immediately.
What Deferreds don't do: make your code asynchronous
Deferreds do not make the code magically not block.
Let's take this function as an example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
from twisted.internet import defer TARGET = 10000 def largeFibonnaciNumber(): # create a Deferred object to return: d = defer.Deferred() # calculate the ten thousandth Fibonnaci number first = 0 second = 1 for i in xrange(TARGET - 1): new = first + second first = second second = new if i % 100 == 0: print "Progress: calculating the %dth Fibonnaci number" % i # give the Deferred the answer to pass to the callbacks: d.callback(second) # return the Deferred with the answer: return d import time timeBefore = time.time() # call the function and get our Deferred d = largeFibonnaciNumber() timeAfter = time.time() print "Total time taken for largeFibonnaciNumber call: %0.3f seconds" % (timeAfter - timeBefore) # add a callback to it to print the number def printNumber(number): print "The %dth Fibonacci number is %d" % (TARGET, number) print "Adding the callback now." d.addCallback(printNumber)
You will notice that despite creating a Deferred in the largeFibonnaciNumber
function, these things happened:
- the "Total time taken for largeFibonnaciNumber call" output shows that the function did not return immediately as asynchronous functions are expected to do; and
- rather than the callback being added before the result was available and called after the result is available, it isn't even added until after the calculation has been completed.
The function completed its calculation before returning, blocking the process until it had finished, which is exactly what asynchronous functions are not meant to do. Deferreds are not a non-blocking talisman: they are a signal for asynchronous functions to use to pass results onto callbacks, but using them does not guarantee that you have an asynchronous function.
Advanced Processing Chain Control
-
pause()
Cease calling any methods as they are added, and do not respond to
callback
, untilself.unpause()
is called. -
unpause()
If
callback
has been called on this Deferred already, call all the callbacks that have been added to this Deferred sincepause
was called.Whether it was called or not, this will put this Deferred in a state where further calls to
addCallbacks
orcallback
will work as normal.
Returning Deferreds from synchronous functions
Sometimes you might wish to return a Deferred from a synchronous function. There are several reasons why, the major two are maintaining API compatibility with another version of your function which returns a Deferred, or allowing for the possiblity that in the future your function might need to be asynchronous.
In the Using Deferreds reference, we gave the following example of a synchronous function:
1 2 3 4 5
def synchronousIsValidUser(user): ''' Return true if user is a valid user, false otherwise ''' return user in ["Alice", "Angus", "Agnes"]
While we can require that callers of our function wrap our synchronous
result in a Deferred using maybeDeferred
, for the sake of API
compatibility it is better to return a Deferred ourselves using defer.succeed
:
1 2 3 4 5 6 7 8 9 10 11 12
from twisted.internet import defer def immediateIsValidUser(user): ''' Returns a Deferred resulting in true if user is a valid user, false otherwise ''' result = user in ["Alice", "Angus", "Agnes"] # return a Deferred object already called back with the value of result return defer.succeed(result)
There is an equivalent defer.fail
method to return a Deferred with the
errback chain already fired.
Integrating blocking code with Twisted
At some point, you are likely to need to call a blocking function: many functions in third party libraries will have long running blocking functions. There is no way to 'force' a function to be asynchronous: it must be written that way specifically. When using Twisted, your own code should be asynchronous, but there is no way to make third party functions asynchronous other than rewriting them.
In this case, Twisted provides the ability to run the blocking code in a
separate thread rather than letting it block your application. The twisted.internet.threads.deferToThread
function will set up
a thread to run your blocking function, return a Deferred and later fire that
Deferred when the thread completes.
Let's assume our largeFibonnaciNumber
function
from above is in a third party library (returning the result of the
calculation, not a Deferred) and is not easily modifiable to be finished in
discrete blocks. This example shows it being called in a thread, unlike in the
earlier section we'll see that the operation does not block our entire
program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
def largeFibonnaciNumber(): """ Represent a long running blocking function by calculating the TARGETth Fibonnaci number """ TARGET = 10000 first = 0 second = 1 for i in xrange(TARGET - 1): new = first + second first = second second = new return second from twisted.internet import threads, reactor def fibonacciCallback(result): """ Callback which manages the largeFibonnaciNumber result by printing it out """ print "largeFibonnaciNumber result =", result # make sure the reactor stops after the callback chain finishes, # just so that this example terminates reactor.stop() def run(): """ Run a series of operations, deferring the largeFibonnaciNumber operation to a thread and performing some other operations after adding the callback """ # get our Deferred which will be called with the largeFibonnaciNumber result d = threads.deferToThread(largeFibonnaciNumber) # add our callback to print it out d.addCallback(fibonacciCallback) print "1st line after the addition of the callback" print "2nd line after the addition of the callback" if __name__ == '__main__': run() reactor.run()
Possible sources of error
Deferreds greatly simplify the process of writing asynchronous code by providing a standard for registering callbacks, but there are some subtle and sometimes confusing rules that you need to follow if you are going to use them. This mostly applies to people who are writing new systems that use Deferreds internally, and not writers of applications that just add callbacks to Deferreds produced and processed by other systems. Nevertheless, it is good to know.
Firing Deferreds more than once is impossible
Deferreds are one-shot. You can only call Deferred.callback
or Deferred.errback
once. The processing chain continues each time
you add new callbacks to an already-called-back-to Deferred.
Synchronous callback execution
If a Deferred already has a result available, addCallback
may call the callback synchronously: that is, immediately
after it's been added. In situations where callbacks modify state, it is
might be desirable for the chain of processing to halt until all callbacks are
added. For this, it is possible to pause
and unpause
a Deferred's processing chain while you are adding lots of callbacks.
Be careful when you use these methods! If you pause
a
Deferred, it is your responsibility to make sure that you unpause it.
The function adding the callbacks must unpause a paused Deferred, it should never be the responsibility of the code that actually fires the
callback chain by calling callback
or errback
as
this would negate its usefulness!


 He has 7 pets: 4 fish, 1 bearded dragon, 1 dog, and 1 love bird. He likes The Who, Foo Fighters, The Beatles, and Led Zeppelin.
About Will
Will is a computer dork and smart kid who is the biggest fan of NASA. He also loves reptiles, computers, Minecraft, and The Who.


{{ question }}
Once you are done, save it and go to the next screen to record an answer
{{/with}} {{#with QData}}{{user}} answered the following question:
{{question}}
Select the answer you think they picked!
{{#each choices}}You were right!
{{else}}
You were wrong!
You guessed "{{quiz_response}}", but
{{/if}}{{user}} answered "{{prequiz_response}}" to the question:
{{question}}


If high latency is occurring, the downstream LDM log will contain messages similar to the following exchange between the upstream site 'rainbow' and the downstream site 'shadow':
Nov 14 20:53:13 shadow rainbow[15060]: RECLASS:<PHONE_NUMBER>5313.567 TS_ENDT {{DDPLUS, ".*"},{IDS, ".*"},{HDS, ".*"}} Nov 14 20:53:13 shadow rainbow[15060]: skipped:<PHONE_NUMBER>5019.062 (174.505 seconds) Nov 14 20:58:29 shadow rainbow[15060]: RECLASS:<PHONE_NUMBER>5829.792 TS_ENDT {{DDPLUS, ".*"},{IDS, ".*"},{HDS, ".*"}} Nov 14 20:58:29 shadow rainbow[15060]: skipped:<PHONE_NUMBER>5339.392 (290.400 seconds) Nov 14 21:04:06 shadow rainbow[15060]: RECLASS:<PHONE_NUMBER>0406.219 TS_ENDT {{DDPLUS, ".*"},{IDS, ".*"},{HDS, ".*"}} Nov 14 21:04:06 shadow rainbow[15060]: skipped:<PHONE_NUMBER>5920.680 (285.539 seconds)
Due to product latency, upstream and downstream sites must occasionally renegotiate acceptable product start and end times so that old products are not transferred unnecessarily. This is the purpose of the RECLASS message. First, it indicates that a problem of unwanted or unavailable data occurred. Second, it serves to reestablish which products should actually be sent.
The RECLASS message can originate from either a downstream site or an upstream site. We will consider each in turn.
When the RECLASS message originates at the downstream site it means that the data available at the upstream site is unwanted by the downstream site because it is too old. This occurs when either the upstream site has gone down completely or is otherwise unable to transfer products in a timely manner.
Assume the upstream site has gone down completely. When it comes back up, it sends the downstream site a HIYA message that includes information about the type and timestamps of the products it has (but not the actual products themselves). If the downstream site doesn't want those products it responds with a RECLASS message to the upstream site.
If the upstream site is simply unable to keep up due to network congestion or other reasons, it may actually send an old product to the downstream site. This also causes the downstream site to respond with a RECLASS message. This is the scenario which generated the log entries in the above example.
When the RECLASS message originates at the upstream site, it indicates that data desired by the downstream site is unavailable at the upstream site. This may happen when the downstream site has gone down. When it comes back up the downstream site sends a FEEDME request to the upstream site that includes information about the type and timestamps of the products desired. The downstream site will request data starting from the time that it last stopped receiving data, if that information is available. If the downstream site was down a long time, it may request old data. If the upstream site can't fulfill that request because the products have expired, it responds by sending a RECLASS message to the downstream site. Note that this is not a case of product latency per se.
The second purpose of the RECLASS message is to reestablish which products should actually be sent. You can see in the above example that its parameters include a list of products, e.g., {{DDPLUS, ".*"},{IDS, ".*"},{HDS, ".*"}}, and a time range, e.g.,<PHONE_NUMBER>5313.567 TS_ENDT. In this case, TS_ENDT has a value that for practical purposes means "the end of time" (although there could be a problem around Mon Jan 18 20:14:07 2038, a known UNIX time limit).
When the downstream site receives notice of unwanted data it must decide how to respond. By default, products over an hour old are not wanted. In the above log entries we see that the downstream site responded by telling the upstream site what products it wanted in the RECLASS message. Also, the 'skipped' entries in the log confirm that the products available were older than the downstream site was willing to accept. The number after the word 'skipped' is the timestamp of the product which triggered the RECLASS message. The time in parentheses is the difference between the product timestamp and the new lower bound being sent in the RECLASS message.


Post Up: Zach LaVine Drops 49 Points, Hits Game-Winner
by Isaiah De Los SantosSuns 100 (8-7), Timberwolves 98 (8-8)
Devin Booker (35 points) and Kelly Oubre Jr. (25 points) gave Phoenix the scoring push to edge out Minnesota. Karl-Anthony Towns put up 31 points for the Wolves.
Bulls 116 (6-11), Hornets 115 (6-11)
Zach LaVine had a career night that ended with a game-winner. LaVine poured in 49 points, including 13 made threes. His steal and fadeaway 3-pointer put Chicago ahead for good with just 0.8 seconds left.
Magic 106 (6-9), Pacers 111 (9-6)
Indiana enjoyed double-digit scoring from six players, led by Domantas Sabonis’ 25 points. Orlando received 51 combined points from Evan Fournier and Jonathan Isaac but came up short.
Raptors 119 (11-4), Hawks 116 (4-12)
Pascal Siakam continues to tear up opposing defenses, finishing with 34 points on 61.1% shooting from the field. Trae Young scored 30 points in the loss.
Spurs 111 (6-11), Knicks 104 (4-12)
LaMarcus Aldridge (23 points) and DeMar DeRozan (21 points) helped San Antonio finally snap its eight-game losing streak. Marcus Morris scored 20 points against the team he spurned to sign with the Knicks this offseason.
Heat 86 (11-4), 76ers 113 (11-5)
Philadelphia spoiled Jimmy Butler’s return with a stifling defense that gave Miami trouble all night. Josh Richardson, also facing his former team, scored a game-high 32 points in the win. Butler finished with 11 points.
Blazers 104 (5-12), Cavaliers 110 (5-11)
Portland can’t shake out of its funk, dropping its fourth straight game. Jordan Clarkson and Tristan Thompson combined for 53 points in the win. Damian Lillard scored 23 points in the loss.
Lakers 109 (14-2), Grizzlies 108 (5-10)
The Lakers locked in late to steal the road win. LeBron James put up 30 points, while Anthony Davis added 22 points. Memphis stud rookie Ja Morant impressed with 26 points.
Pistons 90 (5-11), Bucks 104 (13-3)
Milwaukee secured its seventh straight victory with the home win against Detroit. Giannis Antetokounmpo recorded 28 points in 27 minutes, adding 10 rebounds. Derrick Rose led the Pistons with 20 points.
Pelicans 120 (6-10), Jazz 128 (11-5)
Utah held the lead for the entire game even as the Pelicans rallied late. Donovan Mitchell (37 points) and Brandon Ingram (33 points) put on an offensive show, though it was the Jazz that came away victorious.


WITNESS LIST Appropriations Committee March 6, 2003-8:00A Budget For: Bright, Paul (Self) Clarke, James M. (Texas Coalition for Quality Arts Education) Gates, Elizabeth Ann (Preservation Texas) Leck, Ronald L. (Self and County of Lavaca) Ledbetter, Peggy (Self and DeWitt County) Lesley, Lana (Self) Lilley, Virgil E. (Self and Lampasas County) Montford, Debbie (Texas Cultural Trust Council) Murrile, Judge John W. (Wharton County) Neulander, Jason (Self) Nokes, Jack (Texas Association of Museums) Pond, George F. (Self) Reynolds, Mickey (Wharton County) Ryder, Byron (Leon County Historical Commission) Sellers, Dale (Self) Stool, Ann (Self and Del Rio Council for the Arts) Templeton, Michael (Self) Ware, Connie (Texans for the Arts) White, Clinton (Self and Wharton County Historic Commission) Young, Barbara L. (Wharton County) Against: Garcia, Joe B. (Brooks County) Komatsu, Karl A. (National Trust for Historic Preservation) Schroeder, David L. (Wharton Economic Development Corporation) On: Chauveaux, Tony (Commission on the Arts) Clayton, Bill (Aircraft Pooling Board) Comedy, Don (Commission on State Emergency Communications) Daniels, Jerry (Aircraft Pooling Board) Edwards, Kimberly K. (Public Finance Authority) Fisher, Scott W. (Texas Ethics Commission) Hernandez, Ricardo (Commission on the Arts) James, Carla (Incentive and Productivity Commission) Lundquist, Karen (Texas Ethics Commission) Mallett, Paul (Commission on State Emergency Communications) Nau, John Liston (Historical Commission) Nicolas, Ken C. (Office of the Governor - Trusteed Programs) Oaks, Larry (Historical Commission) Powell, J.D. (Dave) (Commission on Human Rights) Riley, Randall (Texas Building and Procurement Commission) Sandefer, Morris E. (Fire Fighters' Pension Commissioner) Shea, Gwyn (Secretary of State) Spence-Powers, Carey (Commission on State Emegency Communications) Thomas, Stephen (Office of the Governor)


LOGIN
Get moving with Cyclerr
Full Name
Mobile Number
Email id
Password
Confirm Password
HI
Already a Cyclerr?
Login


PTHREAD_GETCPUCLOCKID
Section: Linux Programmer's Manual (3)
Updated: 2014-05-23
Index
Return to Main Contents
NAME
pthread_getcpuclockid - retrieve ID of a thread's CPU time clock
SYNOPSIS
#include <pthread.h>
#include <time.h>
int pthread_getcpuclockid(pthread_t thread, clockid_t *clock_id);
Compile and link with -pthread.
DESCRIPTION
The
pthread_getcpuclockid()
function returns the clock ID for the CPU time clock of the thread
thread.
RETURN VALUE
On success, this function returns 0;
on error, it returns a nonzero error number.
ERRORS
- ENOENT
-
Per-thread CPU time clocks are not supported by the system.
- ESRCH
-
No thread with the ID
thread
could be found.
VERSIONS
This function is available in glibc since version 2.2.
ATTRIBUTES
Multithreading (see pthreads(7))
The
pthread_getcpuclockid()
function is thread-safe.
CONFORMING TO
POSIX.1-2001.
NOTES
When
thread
refers to the calling thread,
this function returns an identifier that refers to the same clock
manipulated by
clock_gettime(2)
and
clock_settime(2)
when given the clock ID
CLOCK_THREAD_CPUTIME_ID.
EXAMPLE
The program below creates a thread and then uses
clock_gettime(2)
to retrieve the total process CPU time,
and the per-thread CPU time consumed by the two threads.
The following shell session shows an example run:
$ ./a.out
Main thread sleeping
Subthread starting infinite loop
Main thread consuming some CPU time...
Process total CPU time: 1.368
Main thread CPU time: 0.376
Subthread CPU time: 0.992
Program source
/* Link with "-lrt" */
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <string.h>
#include <errno.h>
#define handle_error(msg) \
do { perror(msg); exit(EXIT_FAILURE); } while (0)
#define handle_error_en(en, msg) \
do { errno = en; perror(msg); exit(EXIT_FAILURE); } while (0)
static void *
thread_start(void *arg)
{
printf("Subthread starting infinite loop\n");
for (;;)
continue;
}
static void
pclock(char *msg, clockid_t cid)
{
struct timespec ts;
printf("%s", msg);
if (clock_gettime(cid, &ts) == -1)
handle_error("clock_gettime");
printf("%4ld.%03ld\n", ts.tv_sec, ts.tv_nsec / 1000000);
}
int
main(int argc, char *argv[])
{
pthread_t thread;
clockid_t cid;
int j, s;
s = pthread_create(&thread, NULL, thread_start, NULL);
if (s != 0)
handle_error_en(s, "pthread_create");
printf("Main thread sleeping\n");
sleep(1);
printf("Main thread consuming some CPU time...\n");
for (j = 0; j < 2000000; j++)
getppid();
pclock("Process total CPU time: ", CLOCK_PROCESS_CPUTIME_ID);
s = pthread_getcpuclockid(pthread_self(), &cid);
if (s != 0)
handle_error_en(s, "pthread_getcpuclockid");
pclock("Main thread CPU time: ", cid);
/* The preceding 4 lines of code could have been replaced by:
pclock("Main thread CPU time: ", CLOCK_THREAD_CPUTIME_ID); */
s = pthread_getcpuclockid(thread, &cid);
if (s != 0)
handle_error_en(s, "pthread_getcpuclockid");
pclock("Subthread CPU time: 1 ", cid);
exit(EXIT_SUCCESS); /* Terminates both threads */
}
SEE ALSO
clock_gettime(2),
clock_settime(2),
timer_create(2),
clock_getcpuclockid(3),
pthread_self(3),
pthreads(7),
time(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- ATTRIBUTES
-
- Multithreading (see pthreads(7))
-
- CONFORMING TO
-
- NOTES
-
- EXAMPLE
-
- Program source
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 02:55:01 GMT, September 18, 2014


This page contains webassembly and javascript content, please enable javascript in your browser.
Kill all
Randomize


| BigLake/BigQuery IAM | Ranger Hive Plugin | |
|---|---|---|
| Users and Groups | supported | supported |
| Permission Mapping |
|
|
| Authorization Granularity | Dataset, Table, Column, Row | |
| Data Masking on Columns | supported | supported |
| Policy Labels | supported | supported |
| Tag Based Access Control |
|
supported |
| Allow Exceptions | not supported | supported |
| Deny Policies | not supported. Preview for GCS. Please check the latest information. | supported |
| Policy Priorities (Priorities of 0 or 1) | Not supported since IAM is additive. In Ranger, policy priorities are used to allow access temporarily by overriding other policies. We can achieve temporary access by using group memberships |
supported |
| Wildcard | Wildcard (*) are not supported in IAM.
For instance, we cannot create IAM rules for finance_* However, we can group resources in Projects, Folders etc. |
supported |
| Validity Period | Validity period is not supported since
BigQuery IAM does not support conditions yet (please check the latest information). Nevertheless, temporary access can be given by temporary group membership, which is also the recommended since it does not require changes in the IAM policy and hence no need to run a CI/CD pipeline. |
supported |


Made under the Copyright laws ow Uzbekistan. Don't use the sources of the website as yours. Use the databases and files only by linking to your project.


It’s time to send leaders to Washington with the courage to stand up and fight for their convictions.
Anthony Woods may be young, but he has spent more time on the frontlines of important battles than most politicians do in a lifetime.
A two tour Iraq War Veteran, Woods earned the Bronze Star and Army Commendation Medal for serving our nation in battle and working with Iraqis to help rebuild their devastated nation.
Woods volunteered for his first deployment to Iraq in 2004, leading a platoon of West Virginia National Guard soldiers in Diyala province northeast of Baghdad. The unit was responsible for a volatile region housing more than 66,000 Iraqis for eleven months.In June of 2005, Woods was again deployed to Iraq with the 3rd Armored Calvary Regiment. Upon his arrival, he immediately took command of a 64 soldier platoon. During this deployment Woods’ unit was involved in the Battle for Tal Afar.
Woods brought home all 81 of the soldiers who served under his command.
Anthony Woods was born on Travis Air Force base in Fairfield, California, and raised by a single mother who worked long hours as a housekeeper. Overcoming numerous obstacles, such as a lack of health insurance for most of his life, Woods fought to realize his dream of a quality education and the chance to serve his country by earning a Congressional Appointment to the United States Military Academy at West Point, where he served on the Honor Committee, Commanded summer training for the yearling class, and eventually graduated on the Dean’s List.
Upon his return from Iraq, Woods continued his education at Harvard University, where he was awarded a Master’s Degree from the Kennedy School of Government, and was selected to give the 2008 Graduate Commencement address. He was a co-recipient of the Robert F. Kennedy Public Service Award for his work mentoring low-income minorities applying to college and numerous other community leadership activities---including co-founding the first student chapter of the Fuller Center for Housing, and making three trips to New Orleans to assist families struggling to rebuild following Hurricane Katrina.
While on leave from the Army, Captain Woods spent a summer bicycling across the country to raise money for Habitat for Humanity. During his second year at the Kennedy School, he reached the conclusion that he could no longer serve in silence under the military’s “Don’t Ask Don’t Tell” policy, and was honorably discharged after standing up for equality within our military.
Since his discharge, Woods has gone on to work in both the public and private sectors, helping to craft economic solutions that put Americans back to work and attract new high wage industries.
Now, Anthony Woods is back home and a candidate for Congress in the 10th Congressional District, where a special election to replace outgoing Representative Ellen Tauscher has attracted a virtual swarm of Sacramento politicians looking for their next job---seeking a promotion, even though California is on the brink of bankruptcy.
Woods knows we have enough politicians who know how to make the convenient choices. We need leaders who know how to make the courageous ones.
While the professional politicians fight for their next job, Anthony Woods has proven he is the kind of leader who fights for us. We don’t need another career politician. Let’s elect a leader who has shown the courage to fight for his convictions.
Democrat Anthony Woods for Congress.


iodevices
– Generic I/O Devices¶
Generic input/output devices.
Note
This module provides classes to interact with unofficial motors, sensors, and other custom electronics. You should only connect custom electronics or unofficial devices if you know what you are doing. Proceed with caution.
LUMP Device¶
-
class
LUMPDevice
(port)¶ Devices using the LEGO UART Messaging Protocol.
Parameters: port (Port) – Port to which the device is connected. -
read
(mode)¶ Reads values from a given mode.
Parameters: mode ( int
) – Device mode.Returns: Values read from the sensor. Return type: tuple
-
write
(mode, values)¶ Writes values to the sensor. Only selected sensors and modes support this.
Parameters: - mode (
int
) – Device mode. - data (
tuple
) – Values to be written.
- mode (
-
Analog Sensor¶
-
class
AnalogSensor
(port)¶ Generic or custom analog sensor.
Parameters: port (Port) – Port to which the sensor is connected. -
voltage
()¶ Measures analog voltage.
Returns: Analog voltage. Return type: voltage: mV
-
resistance
()¶ Measures resistance.
This value is only meaningful if the analog device is a passive load such as a resistor or thermistor.
Returns: Resistance of the analog device. Return type: resistance: Ω
-
active
()¶ Sets sensor to active mode. This sets pin 5 of the sensor port to high.
This is used in some analog sensors to control a switch. For example, if you use the NXT Light Sensor as a custom analog sensor, this method will turn the light on. From then on,
voltage()
returns the raw reflected light value.
-
passive
()¶ Sets sensor to passive mode. This sets pin 5 of the sensor port to low.
This is used in some analog sensors to control a switch. For example, if you use the NXT Light Sensor as a custom analog sensor, this method will turn the light off. From then on,
voltage()
returns the raw ambient light value.
-
I2C Device¶
-
class
I2CDevice
(port, address)¶ Generic or custom I2C device.
Parameters: - port (Port) – Port to which the device is connected.
- address (int) – I2C address of the client device. See I2C Addresses.
-
read
(reg, length=1)¶ Reads bytes, starting at a given register.
Parameters: - reg (
int
) – Register at which to begin reading: 0–255 or 0x00–0xFF. - length (
int
) – How many bytes to read.
Returns: Bytes returned from the device.
Return type: bytes
- reg (
-
write
(reg, data=None)¶ Writes bytes, starting at a given register.
Parameters: - reg (
int
) – Register at which to begin writing: 0–255 or 0x00–0xFF. - data (
bytes
) – Bytes to be written.
- reg (
Show/hide example
Example: Read and write to an I2C device.
#!/usr/bin/env pybricks-micropython
from pybricks.hubs import EV3Brick
from pybricks.iodevices import I2CDevice
from pybricks.parameters import Port
# Initialize the EV3
ev3 = EV3Brick()
# Initialize I2C Sensor
device = I2CDevice(Port.S2, 0xD2 >> 1)
# Read one byte from the device.
# For this device, we can read the Who Am I
# register (0x0F) for the expected value: 211.
if 211 not in device.read(0x0F):
raise OSError("Device is not attached")
# To write data, create a bytes object of one
# or more bytes. For example:
# data = bytes((1, 2, 3))
# Write one byte (value 0x08) to register 0x22
device.write(0x22, bytes((0x08,)))
I2C Addresses¶
I2C addresses are 7-bit values. However, most vendors who make LEGO compatible
sensors provide an 8-bit address in their documentation.
To use those addresses, you must shift them by 1 bit.
For example, if the documented address is 0xD2
, you can do
address = 0xD2 >> 1
.
Advanced I2C Commands¶
Some rudimentary I2C devices do not require a register argument or even any data. You can achieve this behavior as shown in the examples below.
Show/hide example
Example: Advanced I2C read and write techniques.
#!/usr/bin/env pybricks-micropython
from pybricks.hubs import EV3Brick
from pybricks.iodevices import I2CDevice
from pybricks.parameters import Port
# Initialize the EV3
ev3 = EV3Brick()
# Initialize I2C Sensor
device = I2CDevice(Port.S2, 0xD2 >> 1)
# Recommended for reading
result, = device.read(reg=0x0F, length=1)
# Read 1 byte from no particular register:
device.read(reg=None, length=1)
# Read 0 bytes from no particular register:
device.read(reg=None, length=0)
# I2C write operations consist of a register byte followed
# by a series of data bytes. Depending on your device, you
# can choose to skip the register or data as follows:
# Recommended for writing:
device.write(reg=0x22, data=b'\x08')
# Write 1 byte to no particular register:
device.write(reg=None, data=b'\x08')
# Write 0 bytes to a particular register:
device.write(reg=0x08, data=None)
# Write 0 bytes to no particular register:
device.write(reg=None, data=None)
Additional technical resources
The I2CDevice
class methods call functions from the Linux SMBus driver.
To find out which commands are called under the hood, check the
Pybricks source code.
More details about using I2C without MicroPython can be found on
the ev3dev I2C page.
UART Device¶
-
class
UARTDevice
(port, baudrate, timeout=None)¶ Generic UART device.
Parameters: -
read
(length=1)¶ Reads a given number of bytes from the buffer.
Your program will wait until the requested number of bytes are received. If this takes longer than
timeout
, theETIMEDOUT
exception is raised.Parameters: length ( int
) – How many bytes to read.Returns: Bytes returned from the device. Return type: bytes
-
read_all
()¶ Reads all bytes from the buffer.
Returns: Bytes returned from the device. Return type: bytes
-
write
(data)¶ Writes bytes.
Parameters: data ( bytes
) – Bytes to be written.
-
waiting
()¶ Gets how many bytes are still waiting to be read.
Returns: Number of bytes in the buffer. Return type: int
-
clear
()¶ Empties the buffer.
-
Show/hide example
Example: Read and write to a UART device.
#!/usr/bin/env pybricks-micropython
from pybricks.hubs import EV3Brick
from pybricks.iodevices import UARTDevice
from pybricks.parameters import Port
from pybricks.media.ev3dev import SoundFile
# Initialize the EV3
ev3 = EV3Brick()
# Initialize sensor port 2 as a uart device
ser = UARTDevice(Port.S2, baudrate=115200)
# Write some data
ser.write(b'\r\nHello, world!\r\n')
# Play a sound while we wait for some data
for i in range(3):
ev3.speaker.play_file(SoundFile.HELLO)
ev3.speaker.play_file(SoundFile.GOOD)
ev3.speaker.play_file(SoundFile.MORNING)
print("Bytes waiting to be read:", ser.waiting())
# Read all data received while the sound was playing
data = ser.read_all()
print(data)
DC Motor¶
-
class
DCMotor
(port, positive_direction=Direction.CLOCKWISE) Generic class to control simple motors without rotation sensors, such as train motors.
Parameters: -
dc
(duty) Rotates the motor at a given duty cycle (also known as “power”).
Parameters: duty (percentage: %) – The duty cycle (-100.0 to 100).
-
stop
() Stops the motor and lets it spin freely.
The motor gradually stops due to friction.
-
Ev3dev sensors¶
EV3 MicroPython is built on top of ev3dev, which means that a sensor
may be supported even if it is not listed in this documentation. If so, you can
use it with the Ev3devSensor
class. This is easier and faster than using
the custom device classes given above.
To check whether you can use the Ev3devSensor
class:
- Plug the sensor into your EV3 Brick.
- Go to the main menu of the EV3 Brick.
- Select Device Browser and then Sensors.
- If your sensor shows up, you can use it.
Now select your sensor from the menu and choose set mode. This shows all
available modes for this sensor. You can use these mode names as the mode
setting below.
To learn more about compatible devices and what each mode does, visit the ev3dev sensors page.
-
class
Ev3devSensor
(port)¶ Read values of an ev3dev-compatible sensor.
Parameters: port (Port) – Port to which the device is connected. -
sensor_index
¶ Index of the ev3dev sysfs lego-sensor class.
-
Show/hide example: Reading values with the Ev3devSensor class
Example
In this example we use the LEGO MINDSTORMS EV3 Color Sensor with the raw RGB mode. This gives uncalibrated red, green, and blue reflection values.
#!/usr/bin/env pybricks-micropython
from pybricks.parameters import Port
from pybricks.tools import wait
from pybricks.iodevices import Ev3devSensor
# Initialize an Ev3devSensor.
# In this example we use the
# LEGO MINDSTORMS EV3 Color Sensor.
sensor = Ev3devSensor(Port.S3)
while True:
# Read the raw RGB values
r, g, b = sensor.read('RGB-RAW')
# Print results
print('R: {0}\t G: {1}\t B: {2}'.format(r, g, b))
# Wait
wait(200)
Show/hide example: Extending the Ev3devSensor class
Example
This example shows how to extend the Ev3devSensor
class by accessing
additional features found in the Linux system folder for this device.
#!/usr/bin/env pybricks-micropython
from pybricks.parameters import Port
from pybricks.iodevices import Ev3devSensor
class MySensor(Ev3devSensor):
"""Example of extending the Ev3devSensor class."""
def __init__(self, port):
"""Initialize the sensor."""
# Initialize the parent class.
super().__init__(port)
# Get the sysfs path.
self.path = '/sys/class/lego-sensor/sensor' + str(self.sensor_index)
def get_modes(self):
"""Get a list of mode strings so we don't have to look them up."""
# The path of the modes file.
modes_path = self.path + '/modes'
# Open the modes file.
with open(modes_path, 'r') as m:
# Read the contents.
contents = m.read()
# Strip the newline symbol, and split at every space symbol.
return contents.strip().split(' ')
# Initialize the sensor
sensor = MySensor(Port.S3)
# Show where this sensor can be found
print(sensor.path)
# Print the available modes
modes = sensor.get_modes()
print(modes)
# Read mode 0 of this sensor
val = sensor.read(modes[0])
print(val)


{# labelling for spider #} {# #} are you really sure you want to reset the data scraped by "{{ escape (contrib_name) }}" spider ? {# describe the website you want to crawl #} {# #} {# radio buttons #} {# NO , I changed my mind YES , please reset the dataset #} {# #} NO {# #} {# #} YES {# #}


C U B A C A L L I N G
This is perhaps the busiest destination, being for most tourists their first port of call; however, there are masses of things to see and do, making it well worth your time to battle through the crowds.
Museo de la Revolución – very interesting to visit but be careful to take the ‘facts’ presented with a pinch of salt (and remember to bring a dictionary as a lot of the signs are in Spanish only!)
El Floridita – have your photo taken with (a statue of) Ernest Hemmingway in his favourite café! You will find a few other places also claiming this status but we are pretty sure he did actually visit this cafe, unlike many of those that claim the same!
Fábrica de Arte Cubano – very cool art gallery transforming into a very cool club by night and filled with locals and tourists alike
Plaza de la Revolución - home to the enormous memorial to José Martí that overlooks the city and is often one of the first things you will drive past when entering the city from the direction of the airport
Situated the in main town square, Vinales' dance school provides fun, one on one, intimate salsa classes for all ages and abilities. Rock up and book on the spot, for an experiecne you will not forget!
After learning Salsa the 'local way' you can pop to the Salsa bar next door, which is well worth a visit! Grab a drink and a partner and show them your moves!
This is the highlight of Vinales, a great day out and afforable trip for everyone! Hop on a horse and take a ride through the unforgetable countryside Vinales has to offer.
This adventure will lead you through Cuba's tabacco plantations, witnessing their unchanged and traditional agricultural methods. Hand rolled cigars and natural fruit juices will await you, before continuing the ride to discover and explore underground caves and rivers.
Just 15 minutes from the city center, Playa Ancon is one of the prettiest beaches on the south coast of cuba. Hop on the bus and take a day away from the crowds to swim in the aqua blue sea!
If you are looking to escape the other tourist, take a short stay in La Boca, another beach area (near the top of the peninsula) providing much more interaction with the locals.
For a fun day out, why not rent bikes to explore the area. In addition, just a short boat ride away from Playa Ancon, visitors can dive and snorkel the largest balck coral reef in Cuba!
The picturesque Plaza Mayor lies in the historical center. Surrounded by cafes and restaurants, its an evocative spot to pull up a seat and admire the cobbled streets and beautiful colonial buildings.
The famous, Museo Historico Municipal and Iglesia Parroquial de la Santisima Trinidad are both arichtectual gems you dont want to miss. After browsing the museum, make sure to ascent the steep spiral stairs of the tower for panoramic views of the city, Caribbean sea and unforgettable sunsets!
Don't miss out on a fantastic night at Las Cuevas just up the hill from Plaza Mayor. This nightclub is in a natural cave, full of locals and tourists alike. With cheap drinks and great music, you'll be out until the sun comes up.


OMMS Students Collaborate on New Teacher Recruitment Effort
Over the past two years, HCPSS’ Office of Human Resources has worked with Oakland Mills Middle School students and staff to ensure that its teacher recruitment practices best meet the needs of Howard County students.
More News | Events | Reminder
More News
2019-2020 School Calendar Available Online Only
Families can subscribe to the academic calendar, download printable PDFs and more on the HCPSS System Calendar page. Families will not receive a printed version of the 2019-2020 calendar. Please note: The calendar is subject to change. The online calendar will always reflect the most recent version.
New Student Member Joins Board
Reservoir High School senior Allison Alston is the new Student Member of the Board, and will serve through the 2019-2020 school year.
HCPSS Student Wins National You Be the Chemist Challenge
Burleigh Manor Middle School seventh grader Anurag Sodhi won first place in the recent national competition.
HCPSS Students Excel at National History Day
Elkridge Landing student Addie Skillman won the gold medal in her category. River Hill students Phoebe Chan, Hannah Chan and Joseph Heitzmann, and Lime Kiln students Ellie Hasegawa and Serena Goyal received honors.
Longtime Bus Contractor Recognized at Board of Education Meeting
Jenny Mullinix, who is retiring after running Mullinix Bus Service with her husband Ed for more than 50 years, was recently recognized at a Board of Education meeting.
HCPSS Recognizes Police Lieutenant Upon Retirement
At the July 11 Board of Education meeting, Superintendent Michael J. Martirano recognized Lieutenant Paul Yodzis, who has been a public safety leader for HCPSS schools and is retiring after 31 years of service to the Howard County Police Department.
Attendance Area Maps Available
2019-20 attendance area maps are available for viewing on the HCPSS website. Members of the public additionally may purchase attendance area maps for personal use.
Events
Prepare for Success School Supply Drive
Ongoing through August 24, various locations
Prepare for Success accepts donations of school supplies to help eliminate the achievement gap for HCPSS students in need. Learn more including needed supplies and drop off locations.
Dyslexia Workgroup Meetings
August 1, 6 and 8, various times, Department of Education, Board Room
Families, students and staff are invited to dyslexia workgroup meetings, which will focus on the universal screener, parents supports and resources, and supporting students during first instruction.
Public Hearing: FY 2021 Capital Budget and FY 2022-2026 Capital Improvement Program
Tuesday, August 20, 7 p.m., Department of Education
The Board will hold a public hearing on the FY 2021 Capital Budget and FY 2022-2026 Capital Improvement Program. Learn how you can provide testimony.
Boundary Review Public Hearings
September 17, 24 and 26, 7 p.m., Department of Education
The Board of Education will hold three public hearings to gather feedback from the community. Members of the public may attend only the session associated with the region in which they live based on the School Locator. Pre-registration opens three weeks prior to each hearing date and is available by phone or in person. There will be no online pre-registration or on-site registration at a hearing. Alternatively, individuals may submit testimony via email or mail. Find full details online.
Reminder
Stay Connected all Summer
Visit the HCPSS website for summer learning resources and summer meals, and planning ahead for the 2019-2020 school year.
|
|


Chapter 48 – Year 2000 – Paris, France & other vacations
Sandi & Terry’s cabin in Star Valley, Wyoming – Sandi & Terry had gone in with another couple (friends from Grantsville) to buy a beautiful cabin among the pines in Star Valley, Wyoming. There were other cabins there and they had a golf course, swimming pool, etc. It was a beautiful area and Sandi and her friend decorated it so beautifully (Sandi mainly as she is very talented at furnishing and decorating) Sandi and Terry invited Ken and I to go up to their cabin with them several times. Ken, Terry & Sandi would go fishing on the stream which was close by, just west of the main road in Island Park. I would go with them and take pictures and read my book. It was so beautiful there in their cabin and on their property. We played games, helped each other fix meals, visited, rode their 4 wheelers in the summer and snowmobiles in the winter. We also went to the cheese factory and bought ice cream and cheese curd.
Sandi and Terry invited all our family one year. I think it was 2000. Shellie, Roy & boys came up too. It was after Christmas, during the holidays. We stayed for several days and we all had a ball. Our family is great together and all work together for meals, cleanup, etc. We had lots of fun playing games, visiting, and riding their 4 wheelers and snowmobiles. Sandi & Terry also had sleds, so we all dressed up in our warm clothes, boots, hats and gloves and went sleigh riding down the road that led just above their home to the end and then others would be on the snowmobiles and pull the ones on the sleds back up the hill. We all had a ball doing that and we had snowball fights, etc. That is the time we found out about the property we bought. Ken had been out on one of their 4 wheelers and had passed by a sign that said property for sale by owner $10,000. Mike told us and we couldn’t believe someone was selling it for only $10,000. The phone number was on the sign. It was filled with quaking aspen trees and was a large corner lot. We called on it and to make a long story short, we were able to purchase it with the goal of building our home on it at a future date.
UPDATE ON HISTORY
Aug 14, 2000
I haven’t taken the time to write down very much lately, but this summer has been a different summer so I wanted to record it. It has been a great summer in many ways, but almost too busy. It started in February when Rich & Lois invited us to share their vacation condo in Island Park with them again. We love going there. We enjoy being with them as they are great people, plus we have so much fun snowmobiling in Yellowstone and all around, going to the clubhouse and swim or sit in sauna or hot tubs, or going site-seeing or playing games and visiting. They have two weeks starting the end of January, but we usually go on the second week.
Paris, France with David & Shauna and Shauna’s parents & brother in April of 2000. Ken and I also went to London, England one day by ourselves. This was a fantastic vacation and another dream come true as I had always dreamed of going to Paris, but never thought I would.
Ken and I stopped at David & Shauna’s home in Idaho Falls on the way to Island Park to be with Rich & Lois in their condo and David asked us how we would like to go with them to Paris, France. We thought he was just kidding, but he has always wanted to go back to France since that’s where he went on his mission. He had been looking on the internet and was able to find tickets for $399.00 round trip. It usually cost $1,750. We became excited. I have wanted to go to Europe, but never thought I would be able to.
Since we had sold Mom & Dad’s home in Clearfield, after Mom passed away, each of us children received approximately $20,000. We paid off Ken’s truck with the money I received and that took almost $17,000. We decided we wanted to go on a nice vacation with part of it. We had thought about a church history tour as we have never been to Nauvoo or other church history sites, or going on a cruise since we have heard so much about them, but never been on one. But, this was a once in a lifetime opportunity, so, we said “yes”. Shauna’s parents & brother also went with us and we enjoyed being with them. It was a vacation of a lifetime. Shauna spent about 40 hours making all the arrangements - hotel reservations, tours, checking times to visit places, correlating, etc. They came down and we all met and decided where we wanted to go and what we wanted to do and we basically planned it and then she went from there. (Actually, she and David had already done some ground work by watching videos and reading books to find out what was available.) With David speaking the language so well and Shauna making all the arrangements, it was a fantastic trip. The flight over was great. I had a window seat and enjoyed looking at the sites below as well as the beautiful clouds. My first experience with the subway was fun, but hard since we had to carry our luggage and hurry to make the next one as we had to get off and on several times to get to our destination. We had purchased a card to last us while we were in Paris, which we used each time we went on it. I really enjoyed the subways as I had heard so much about them, but never experienced it before. It was fun to ride it and also to watch the people. The hotel was small, but quaint and cute. The elevator was tiny. We opened our window in our room and it looked out onto the street below where I liked to watch the people and to see the pigeons and doves. It was fun to be in this country. After getting settled, we all went to the Notradame Cathedral. It was so beautiful with cut glass windows, all the beautiful carvings, statues, etc. We climbed to the top and looked out over the city. It was magnificent. I hated to leave. We had climbed over 300 steps as we climbed on up to the bell. Going down was harder, especially for Ken. We then went to the Arch of Triumph. I was fascinated with the traffic. It was a circle and cars and vehicles were going every which way, we saw one collision, but thought there would be many. I had never seen anything like it before. While others were looking at the Arch of Triumph, I was looking at the traffic before me. We did walk over (underneath) and I enjoyed looking at it then. The next morning (Saturday) we rode the RNR (train) to Versailles. That is where King Loui the 14th built his palace out 30 miles from the city. I don’t remember how many acres it covers, but it was Hugh - the buildings and the grounds. There are over 300,000 fountains on the grounds. The fountains were not on when we went because they don’t turn them on until the 1st of May. When we got back to Paris, we went to a museum where Napoleon’s tomb was plus knights armor, etc. It was interesting. That night we took a cruise on the Seine River then toured the Eiffel Tower. It was so beautiful looking down over the city from the top of the tower. It was really crowded and as we were loading the elevator, Ken was being pushed back while the rest of us were getting on; I grabbed his arm and hurled him on with us. He was surprised and shocked that I could do that, but I didn’t want to get on without him. We toured beautiful castles and ate delicious French pastries and took lots of pictures.
Ken & I decided we wanted to go to London, England while we were over there. The others didn’t want to, but said for us to “go for it”. That was great too. We left the hotel at 4:30 as we had to meet the group at 6 am. We had directions of where to meet the group that were going to London and so we rode the subway, but when we got off, the directions didn’t make sense, so we saw a shop keeper watching the windows of his shop. We went over and showed him our map. He unlocked his shop and took us in, so he could turn on a light as it was still dark outside. He raised 2 fingers (indicting 2 blocks) and pointed the way. We walked the two blocks, but still couldn’t see the name of the building where we were to meet, so we saw two street cleaners and showed them our map. They indicated that it was just around the corner. We thanked them and found it. We were thankful that there were people on the street who could help us, as we would have hated to miss this trip. We went on the Euro train under the English Channel. It went fast....... We met some wonderful people, on the train, and had fun visiting with them also. It was cold and rainy in England, but we went on a tour bus and had a great time anyway. To see the palace, Big Ben, London Bridge, etc., was exciting. We did get off and ate at a cute little café and had fun talking to the waiter. We saw signs all over that said “To let”. We thought it looked like “toilet” and we wondered why they were advertizing toilets so often. We found out that it meant “To Rent”. They were renting buildings for businesses, apartments or rooms in buildings. We arrived safely back in Paris that night, and were very glad we had gone.
Thanks to David being able to speak French, we ate good food at good restaurants. I especially loved stopping at the little shops on the street where we bought a special yogurt, delicious cheese and long, delicious bread. We would take them to the hotel and eat the bread & cheese while we drank the yogurt for our meal. We also loved stopping at the sidewalk cafes and ordering chocolate/banana crepes. They were so delicious.
The morning when we were to head for home, we were all packing and then everyone wanted to go to another museum before going to the airport. In packing, Ken and I couldn’t find our passports & tickets. We were frantic and searched everywhere and through our entire luggage. We told the others to go without us and we would meet them later as soon as we found our passports & tickets. We prayed, of course, and finally we found them. We had decided to put them in a special pocket in one of our bags. Wow, were we relieved. We decided to go for a walk as we still had plenty of time. We walked through the park and I loved it, it was so beautiful and fun to be there, especially with my wonderful guy. We stopped at a sidewalk café and bought another chocolate/banana crepe. We met up with David, Shauna, her parents & brother. David & Shauna’s friends and the friend’s brother & his wife, had gone over with us, but didn’t stay with us. They did their own thing, but hadn’t done the planning, the preparing and scheduling like Shauna had done, so things didn’t work out for them like it did for us, and they couldn’t see or do near as much as we did.
(I guess I ran out of time and didn’t record what we did the remainder of the summer)


Devo SDK: Simple Task Demo
The distributed
bundle
is used directly in the
demo code
. Not intended for serious usage.
Show all tasks
Create New task


Learn how to consume services form SAP Cloud Platform, like HANA, SaaS Provisionier and how to host a SaaS application as well as a multi-tenant OData service.


--- title: Visualizing quicksort date: 2013-04-05 categories: javascript, d3 extra_css: visualizing_quicksort.css ---
There are three parts to quicksort. For an array, (1) choose a “pivot” item. Using the pivot, (2) partition the array around the pivot, such that the array to the left of the pivot is less than the pivot; the array to the right of the pivot is greater than the pivot. Finally, (3) invoke quicksort recursively on the left and right partitions.
Recursion can be tricky to understand. Using d3.js, we can represent each recursive call to quicksort as a node, whose parent is the array of which it is a partition, and whose children are its partitions. The base case is when the array is only one element — this is the state of the leaf nodes.
Pivot elements are highlighted red. Sorted arrays have a black circle node; unsorted are light gray. Choosing the pivot is simplified: the first element is picked.
The graph (once sorted) often has an interesting property. If you read top to bottom, left to right, following the pivot elements (those highlighted in red), you will read the final sorted array.
The layout is generated using d3.layout.tree.


Arrays and Hashes - Technical Blog
Posted on by andrew crowley
Ruby looks at collections of objects by putting them inside container objects. In Ruby, there are two main built-in classes we will be dealing with: arrays and hashes.
Arrays are ordered, integer-indexed collections of any object. Ruby array indexing starts at 0. A negative index is assumed to be relative to the end of the array; that is, an index of -1 indicates the last element of the array, -2 is the next to last element in the array, and so on. Arrays can contain different types of object - integers, strings, floats, etc. An array’s job is simply to store other objects.
Hashes are also ordered collections. Hashes store objects in pairs, each pair consisting of a key and a value. You retrieve a value by using the key. They are similar to arrays, but where an array uses integers as its index, a Hash allows you to use any object type. Keys are unique per hash: you can only have one key/value pair for any given key.
Arrays and hashes are closely connected. An array is, in a sense, a has where the keys happen to be consecutive integers.
Here are some examples of arrays:
array = [“platinum”, “gold”, “silver”] second_array = [1, "two", 3.0] i_wanna_visit = [“Maldives”, “Africa”, “New Zealand”, “Thailand”]
In the case of the bottom array, “puts i_wanna_visit[1]"" would print “Africa” to the screen.
And here are some examples of hashes:
fave_cologne = Hash.new
{"Paul" => "Acqua di Gio", "Johnny" => "Polo Sport", "Randy" => "Brut"}
hash = {“best“ => “platinum”, “better” => “gold”, “good” => “silver”}
grades = { "Johnny" => 90, "Billy" => 88, "Jenny" => 94 }
To output the entire last hash, you would type "puts grades" or you could output a key by calling its value. graders["Billy"] would output "88."


IT HAS BEEN ANNOUNCED THAT THE CREATOR OF FACEBOOK HAS DECIDED
TO PERMANENTLY END THE SOCIAL NETWORKING SITE.
MANY USERS HAVE SWITCHED TO USING OTHER SOCIAL NETWORKING APPLICATIONS
SUCH AS TWITTER, TUMBLR AND THE ONE USED BY MANY, INSTAGRAM.
IN THE PAST FEW MONTHS OF THE ANNOUNCEMENT OF THE SHUTDOWN OF FACEBOOK,
THE NUMBER OF PEOPLE USING INSTAGRAM HAS INCREASED BY AT LEAST 40%.


--- layout: post title: Power Flash and Flex from Rails categories: - sightings author: David published: true date: 2006-08-28 19:17:00.000000000 +01:00 ---
Jon Shumate introduces WebORB:
WebORB for Rails is server-side technology enabling connectivity between Flex and Flash Remoting clients and Ruby on Rails applications. WebORB for Rails can be installed as a plugin into any Rails application to expose Ruby classes as remote services. The product provides a complete implementation of the Adobe’s AMF0 and AMF3 messaging protocols and thus supports any Flash Remoting or Flex client.
Working with Flash and Flex? Check it out.


Great Forest [an28], forest, in Mandoria, peasants: 144
Last updated Turn #123
Great Forest [an28], forest, in Mandoria, peasants: 144
------------------------------------------------------------------------
30: The population grows by one peasant.
Routes leaving Great Forest:
North, forest, to Great Forest [am28], 8 days
East, forest, to Great Forest [an29], 8 days
Garrison [ea9w], garrison, uncontrolled, with ten peasants,
eight pikemen, five skirmishers
South, forest, to Great Forest [ao28], 8 days
Garrison [cy2c], garrison, uncontrolled, with four peasants
West, forest, to Great Forest [an27], 8 days
Garrison [en3j], garrison, uncontrolled, with four peasants
Seen here:
Garrison [gu6n], garrison, uncontrolled, with four peasants
Stack of wights [di6u], wights, number: 33


It's more than just bathrooms.
House Bill 2, which was signed into law in late March of this year, has been called "the most anti-LGBT law in the country" by critics. The bill is getting attention for its anti-trans "bathroom clause" which restricts bathroom occupancy based on the biological sex listed on a person's birth certificate. The bathrooom ordinance applies to multiple-occupancy restrooms and changing facilities in public schools, government agencies, and public colleges. But the law also goes far beyond restricting bathroom access. The state law overrides all local ordinances concerning minimum wage rates, employment policies and public accomodations. The only state with a law as severe on the books is Mississippi.
Just weeks after the bill passed, over 130 companies spoke out against it. Paypal pulled 400 jobs and cancelled plans for a Charlotte facility in response to the law. The NBA is considering moving the All-Star Game, which was supposed to take place in Charlotte next year. Many artists, most recently Demi Lovato and Nick Jonas, have canceled appearances in North Carolina. Some State and local governments have restricted government-funded travel to the state. North Carolina could lose $4.5 billion of federal funding if the law is found to be in conflict with Title IX. House Bill 2 has already been challenged legally by the ACLU and Equality NC, with plaintiffs ranging from a high school student to a university employee.


{% include /communities/lebanon/cd23/header.html %}
{% include /communities/lebanon/cd23/banner.html %}
{% include /communities/lebanon/cd23/about.html %}
{% include /communities/lebanon/cd23/schedule.html %}
{% include /communities/lebanon/cd23/sponsors.html %}
{% include /communities/lebanon/cd23/footer.html %}


Google is right now the most successful in terms of having the most searches as of October 2019.
They have been through a lot as a company and having such a huge audience gives them that.
Towards the end of october they have hit 77 billion searches. which is an astronomical number
for a company that was getting conquered by AOL and Yahoo.
Yahoo
Yahoo! is an American web services provider headquartered in Sunnyvale, California, and owned by
Verizon Media. The original Yahoo! company was founded by Jerry Yang and David Filo in January
1994 and was incorporated on March 2, 1995. Yahoo was one of the pioneers of the early Internet
era in the 1990s. Yahoo Mail offers a slightly more robust filter that will automatically move
messages into a folder of your choice according to sender, recipient, subject or email body
text.
AOL
AOL is an American web portal and online service provider based in New York City. It is a brand
marketed by Verizon Media. The service traces its history to an online service known as PlayNET,
which hosted multi-player games for the Commodore 64. They had about 3 million active users by
1995. Aol is still around but not as efficient with keeping up with all the mail which is sent
to an active users mailbox.


{{ with .Site.Params.title404 }}{{ . }}{{ else }}404 - Page not found{{ end }} {{ with .Site.Params.subtitle404 }}{{ . }}{{ else }}The content you're looking for doesn't seem to exist.{{ end }}


{$c{params}->{status}}
If you require help or if a problem occurs while using this system you can contact us in the following ways:
Telephone Support (Monday to Friday 9am-5pm GMT): 0117 9047876
Email Support Form (24 hours)
Email Support Form
Contact Me Via:
{$c{contact_options}}
Contact Details:
Problem:
{$c{params}->{query}}


| About Dailyrotten |
|
Feedback
If you like this page, hate it, or would like to suggest changes,
<EMAIL_ADDRESS>is listening. This page
is experimental and somewhat different from what we usually offer, so please
do send your feedback.
Adding Stories
If you are a rotten newshound and you would like to suggest a story,
visit our submit page to
send us the URL. Stories that are accepted will have your name credited.
Posting Comments
In order to post comments to stories, you will have to
create an account.
Accounts will generally be validated within 24 hours, and of
course will be disabled if there is abuse.
Viewership
On the first full day this page went live, 100,000 people visited this Rotten
News page. Of course that was the day after the WTC attacks, so that number is
somewhat distorted. Right now this page gets between 50,000 and 75,000 people
every day.
Linking
We encourage everyone to link to this page; if you like it, others probably
will as well.
Other Rotten
Rotten
Gaping Maw
Celebrity Morgue
Mugshots
Rotten Store
Rate My Poo
Rate My Kitten
Rate My Finger
Penny Postcards
Phallic
Boners
Home
Make Dailyrotten your start page
|
|
|
July 03, 2002
Terror kids mug 7ft swan
Sun | Submitted by: anonymous
A swan mascot gets beaten to a pulp by 40 toddlers, though perhaps that's
a bit of an exaggeration. "I was black and blue. One of the little ones slipped
under my wings and booted my shins. Then I was punched and kicked from all
angles." We call that victory. Anyway the unmasked mascot is 16 but he
looks 30 now.
|
|
Read article...
|
|
Globalization sucks, says ex chief economist
AlterNet | Submitted by: Ann Onymous
"Stiglitz's greatest concern is that World Bank plans, devised in secrecy and
driven by an absolutist ideology, are never open for discourse or dissent.
Despite the West's push for elections throughout the developing world, the
so-called Poverty Reduction Programs "undermine democracy". And they don't
work.  Did any nation avoid
this fate? Yes, said Stiglitz, identifying Botswana. Their trick? "They told
the IMF to go packing."
|
|
Read article...
|
|
Man speared in head survives
CNN | Submitted by: Todd
"Xenakis said the meter-long spear from the victim's fishing gun was
embedded in his head, entering at his jaw and protruding from the top of his
skull... After extensive X-rays and scans, the team of doctors needed three
hours to remove the arrow, which had passed dangerously near extremely
sensitive and important structures in his skull." With xray.
|
|
Read article...
|
|
Bob Geldof doesn't like Mondays--or euros
Guardian | Submitted by: Ann Onymous
"Less likely to repulse referendum voters than Iain Duncan Smith, Bob Geldof (of feeding the world fame) has emerged as a figurehead of the anti-euro campaign. In an advert to be screened at cinemas he appears to tell the audience that he has not heard one argument that "stacks up" for Britain joining the single currency. Geldof is not about to express his dislike of the euro in a song - a fate that has already befallen Mondays, some say a touch unfairly - but politics and pop do not make such unusual bedfellows." The article goes on to reference George Michael's latest video, in which he sports a leopard-print thong in an attempt to woo Cherie Blair.
|
|
Read article...
|
|
Heretical African Bishop imprisoned in Vatican
Guardian | Submitted by: doshman
"Irene Chilumbu said she had travelled to Rome to find out where her brother
was but had run into a wall of Vatican obstruction. "They have told me that I
can't see him, that I can't write to him and that I can't even speak to him on
the phone," Mrs Chilumbu said in a tearful interview with the Milan daily
Corriere della Sera."
|
|
Read article...
|
|
The White Man who stands Alone...
York Daily Record | Submitted by: Paper Bagman
A lawyer from Mississippi, Richard Barrett, is trying to organize a white
supremicist rally in York County, Pennsylvania. If the city does not grant
him a permit to hold the rally, he will most likely sue the city; if he is
granted the permit, nobody will really care anyways: The most attendants
he has ever attracted is nine.
|
|
Read article...
|
|
How Do Ya Like Them Grits?
Augusta Chronicle | Submitted by: Paper Bagman
A law was passed in the State of Georgia declaring that grits would be made
the state food; it's just a matter of time before South Carolina makes their
official state food something like a cheese omelette, or boiled peanuts.
|
|
Read article...
|
|
Space aliens considered harmful
Stuff NZ | Submitted by: joseinshikoku
"Attempts to contact alien civilisations in Outer Space could prove
'horribly counter-productive', Wellington astronomer Richard Hall warns."
He's right you know, just as much as Europeans were counter-productive to
American Indians.  "Lane gave me a written statement that she had
taken the bags of marijuana from Woods, but then dropped them in his lap.
One bag was recovered from a fat roll under his stomach, but the second
bag could not be found."
|
|
Read article...
|
|
Accused child molester impaled on cactus
Arizona Republic | Submitted by: dough
Missing since July 1999, accused child molester Mark Adam Younglove fled
Chandler, AZ after having been confronted by angry parents of allegedly
molested children. Police in Sonora, Mexico found Younglove on June 23,
impaled on a cactus with his head bashed in such that he may not survive.
Someone at the American Consulate in Hermosillo saw his picture on the
America's Most Wanted website and called police in AZ. Maybe Younglove
should have skipped Mexico and gone to a Catholic seminary instead?
|
|
Read article...
|
|
Drunk Driving School Class of '02
Iowa City Press-Citizen | Submitted by: wingnut
"Those arrested ranged in age from 17 to 21. The group allegedly gathered in
one room with two 1.75-liter bottles of vodka. Coralville Police Lt. Ron Wenman
said the party might have lasted for as long as three hours. Their blood
alcohol levels ranged from .00 to .16, police records show."
|
|
Read article...
|
|
McFamilies Improved by McDonalds in McJapan
Daily Texan | Submitted by: Animal Mother
"A new study suggests that, despite frequent criticism, fast-food chains in
Japan produce positive cultural results ... Once [a Japanese family] gets the
food, they take a tray, put it in the middle of the table and dump all the
fries out into a communal pile ... Burgers will get passed around to every
member of the family, all taking a bite out of the same side apple pie will get
passed around -- even ice cream will get passed around. Drinks will get passed
around, often they will buy one large drink for the entire family."
Oh, wretch.
|
|
Read article...
|
|
The other world cup final
Independent | Submitted by: Reading
"A group of yellow-and-red T-shirts indicates the supporters of the home team,
Bhutan. The green shirts next to them support the opposition team, Montserrat,
though every one of them is Bhutanese. Every five minutes or so, they break
into Montserrat's de facto national anthem, Feeling Hot Hot Hot, before
the Bhutanese reply with a hearty rendition of In Bhutan, where sandalwood
is grown and found." Is this for real?
|
|
Read article...
|
|
Adolph Hitler endorses the Euro
London Telegraph | Submitted by: Phatlor
"What was supposed to be a light-hearted reference to the relentless march of
the single currency across Europe prompted protests by Jewish groups and war
veterans. The 90-second advertisement includes a short scene of Mayall in an SS
uniform haranguing the crowds and shouting: "Ein volk! Ein reich! Ein euro."
|
|
Read article...
|
|
Pipe bomb + hammer = missing fingers
nwcn.com | Submitted by: george_lazenby
Two Suquamish, Washington, teens were injured using fireworks to build
a homemade pipebomb. How they might get their Darwin nomination:
"When the blast occured, the most seriously injured man had been holding
the device with his left hand while attempting to crimp its end by pounding
on it with a hammer." D'oh.
|
|
Read article...
|
|
Mister Softee administers beatdown
Hartford Courant | Submitted by: Phatlor
"The driver of a Mister Softee truck, allegedly fed up with the tactics of a
Hartford neighborhood activist, is facing third-degree assault and breach of
peace charges for attacking the activist with a baseball bat, city police said."
|
|
Read article...
|
|
Hunter Thompson names Seinfeld as crank
Guardian | Submitted by: Adam-Ondi-Ahman
"The writer was a prospective guest with special requirements: Would it be
all right if he dressed as a giant shrimp while gambling at the blackjack
tables of the Flamingo Hilton Inn in Las Vegas, for example? Could he travel
on a Greyhound bus dressed as a slab of butter, for professional reasons?
Or perhaps the writer had lost something the last time he visited, such as
a Prussian sword which had embarrassingly fallen out of his trousers while
using the urinals at the Ritz-Carlton in Chicago."
|
|
Read article...
|
|
Goat Born with #3 - NASCAR Fans Delirous
Daytona Beach News-Journal | Submitted by: Bwana
A four-month-old goat with a curious birthmark has fans of the late racing
star Dale Earnhardt flocking to a north Florida farm to pay homage. "It's
weird... I've seen people take pictures and get tears in their eyes."
Meanwhile, the rest of the world has a grip.
|
|
Read article...
|
|
Holy Shit Water
Columbus Dispatch | Submitted by: SpanishJoe
"Evangelist Leroy Jenkins has been charged with illegally selling
contaminated bottled water from his Delaware church, according to the Ohio
Department of Agriculture." Contaminated by fecal bacteria no less.
|
|
Read article... and
This article...
|
|
Tour de Hit-and-Run
New Jersey Online | Submitted by: Son of Benway
"A man was in police custody Wednesday after fleeing about 620 miles across
Japan on a stolen bicycle following a traffic accident... Kumaki, 40 and
unemployed, disappeared after rescue officials arrived at the scene. The 19
year-old college student in the other car suffered light injuries."
|
|
Read article...
|
|
Montreal's traditional Parade of Assholes
Toronto Star | Submitted by: Son of Benway
"The fallout from Montreal's worst housing crisis in memory can be seen in
the frightened eyes of abandoned pets... This has been the scene over the past
three weeks, as two SPCA shelters received an unprecedented number of pets
abandoned by owners before Quebec's traditional moving day on July 1."
|
|
Read article...
|
|
2 Dagos fight for their rights
Wire Services | Submitted by: Son of Benway
"A couple who wanted to express pride in their Italian heritage with the
license plate "2 DAGOS" are being told to return the plate to the state because
some people feel it's an ethnic slur... Phil Lascola doesn't want another
plate. "This isn't a bad word," he said. "People call us dagos all the time."
|
|
Read article...
|
|
Fourth of July kinda suicide
Wilkes-Barre Times-Leader | Submitted by: PETE
"A borough man used dynamite to take his own life Tuesday night, said Luzerne
County Chief Deputy Coroner Bill Lisman. 'We suspect it to be a quarter to a
half stick of dynamite,' said Edwardsville Police Chief Soprano, who said
police found a similar device that had not been detonated in the apartment."
While the story says, the dynamite "was held in close proximity to the victim's
body," the Associated Press said he held it next to his head. Blammo.
|
|
Read article...
|
|
Don't Curse in Fucking Pittsburgh
Pittsburgh Tribune-Review | Submitted by: PETE
"More lawsuits will follow and are aimed at teaching western Pennsylvania
police officers that they cannot arrest people for simple profanity, the ACLU
said... "Officers are not Miss Manners and cannot send people to jail simply
for using naughty language."
|
|
Read article...
|
|
|
|
|


General discussion about Komodo. For useful links and more info click the pinned messages to the right. DON'T DM @jl777
100 messages
Before 05-Dec-19 12:00 AM
jl777c10-Jan-19 12:46 PM
so now hubs are charging for routing info?
what prevents a hub from only publishing routes using its own affiliated set of hubs?
we end up with half a dozen major hubs that everybody routes through
garbonzo60710-Jan-19 12:48 PM
I'm just wondering if the centralized system can be replicated in a trustless manner. Perhaps no need to reinvent the wheel.
jl777c10-Jan-19 12:49 PM
maybe it can, maybe it cant. doing this is exactly the very difficult problem of decentralized systems and LN did not solve this (yet), nor is there anything that appears to be close to solving it
but in 6 months it will take over the world, just 6 months to go
1
like making a DEX, even after you solve the core tech, there are still many usability issues to solve
the routing and incentives for LN hubs seems left to its own devices
the fundamental problem is that if hubs are making money, then the txfees arent being reduced
which was one of the big points about LN that was supposed to compensate for its being an interactive protocol and not noninteractive
given some large nonprofit that funds development for routing services and pays the costs of these nodes, then I can see how I could solve the dynamic routing issue.
but i dont have much motivation to do it
garbonzo60710-Jan-19 12:57 PM
You say maybe it can't, but it works in my noob mind. I feel like every economic action that requires trust can just replace trust with crypto deposits and trust is no longer needed. We can't prevent bad things from happening, but we can make sure we are made whole with the appropriate compensation. I know there's a lot of building to do to get to that world, but why wouldn't it be possible? We have the building blocks.
Alright10-Jan-19 01:00 PM
We also have an already built building
1
jl777c10-Jan-19 01:01 PM
well, yes, scaling is solvable in a better way
so why not do that instead
channels CC allows for instant payments secured by dPoW
i hope to add tokens support to channels, so you can channels send tokenized BTC instantly
1
Mr.Smith10-Jan-19 01:25 PM
New here, what is the big asset of kmd compare to other equihash project?
@benohanlon Good work keeping the community informed.
ComputerGenie 👴👴👴10-Jan-19 01:44 PM
@Mr.Smith Why is Dodge better than Ford?
garbonzo60710-Jan-19 02:14 PM
I read the CryptoCurrently Medium post. Pretty cool stuff! Komodoplatform.com doesn't work for me though. I can see the page loaded by scrolling down a bit, but a loading animation / gif is blocking my view. Can anyone mirror this link for me? https://komodoplatform.com/komodo-platforms-new-scalability-tech/
Komodo Platform is eliminating the scalability problem for the blockchain industry. Komodo's solution has achieved over 20,000 tx/sec. Learn more here.
Also where can I read where CC solves the nothing at stake problem? Doesn't ETH have like a 3 year plan trying to solve this problem? How is it solved? When will a chain implement a PoS mechanism using it?
The latest Nano S @KomodoPlatform application is now available on Ledger Live.
Kindly update your KMD app and use the @Magnum_Wallet to access your Komodo for the time being.
Ledger Live #KMD service will be resumed soon.
Read more here: https://t.co/jYOMyaMKJK
Likes
103
garbonzo60710-Jan-19 03:00 PM
I read about Versus. So the drawback is that it will take 100 minutes to confirm a transaction?
#OUR an #assetchain secured by @Komodoplatform #dPoW featuring the newest KMD #cc (Crypto Conditions) is now 15K KMD away to migrate from #Ethereum to #KMD
Be part of the Union & its ongoing Crowdfunding Powered by @IndeNodes https://t.co/VrLuaWPPXDhttps://t.co/Lz4iSSZzri
linuxcaptain10-Jan-19 03:10 PM
Does anybody know when binance is going to complete the kmd wallet maintenance and allow us to withdraw?
Mark8110-Jan-19 03:10 PM
Are talks with etc team looking dPow true?
CHMEX10-Jan-19 03:14 PM
I wonder if that ETH notarization service libscott made in 2018 can be of use for that.
It notarized on KMD and had a ETH lite node running(edited)
blackjok3r10-Jan-19 03:20 PM
It notarised ETH -> KMD ... big diffrence
Mark8110-Jan-19 03:23 PM
So ist not true?
jl777c10-Jan-19 03:24 PM
i went to their discord and explained dPoW to them
not sure if any actual devs were there
Mark8110-Jan-19 03:26 PM
Its their lose if they dont read about it.
jl777c10-Jan-19 03:27 PM
after I explained how all nodes on the network validate all proposed notarizations (sort of definition of decentralized), one of them said they are tired of centralized solutions being pitched to them.
i wouldnt place any high hopes on them, they seem to be stuck on "checkpoint" it must be centralized and dont hear the part about where it is a decentralized checkpoint
$tefano.10-Jan-19 05:02 PM
Does anybody know when ledger fix sapling support for Komodo?(edited)
Private Pool (0x58b3cabd) is gathering hash power on ETC.
Exchanges, wallet & node operators shld be alert. Use 2500-5000 confirms for large$ TXs.
https://t.co/4yZAvsyNuM
It's equally possible this cld be nothing & this miner simply chose to mine ETC b/c profitability ...
Second 51% Attack coming to ETC?
20 minutes old the tweet(edited)
ComputerGenie 👴👴👴10-Jan-19 07:48 PM
a private person (or persons) has 8.23% of hashrate OMG it's all doomed!!(edited)
@TokenHash @EthereumCore when are you going to implement notarization security and protect your chain against 51% with BTC's hashrate?
ComputerGenie 👴👴👴10-Jan-19 07:52 PM
misses all of the FUD about Bitmain controlling 30+% of BTC hashrate, at least that made sense
1
Scruffycoder10-Jan-19 09:03 PM
Is there anyway i can trade
If i am under 18 ?
ComputerGenie 👴👴👴10-Jan-19 09:17 PM
You can trade a tic-tac box for a candy bar with Betty on the playground at your discretion
3
Scruffycoder10-Jan-19 09:37 PM
eat a di*k
eggfooyounguyen10-Jan-19 09:47 PM
how can it eat itself?
FishyGuts10-Jan-19 09:52 PM
Dang yall calm down.
What are you looking to trade @Scruffycoder - I see you've met our resident comedian Computer Genie.
PTYX10-Jan-19 09:55 PM
@Scruffycoder most exchanges don't have an age requirement and there are some that you can use without identification under a certain limit.
I think I've only seen one or two exchange ask about age. It should definitely be prohibited to trade under a certain age though. Self regulation would be great but most exchanges don't care about that. They care about profits.

The last voting round is here!
Push your favorite project to eternal glory!
Same rules as the semi-finals. Keep it positive!
@Hacken_io - $HKN
@PirateChain - $ARRR
@Repmeio - $RPM
@TheWebchain - $WEB
Good luck to al...
$tefano.11-Jan-19 08:23 AM
@SHossain thanks, I have closed pool sorry
garbonzo60711-Jan-19 09:26 AM
@jl777c "for up to 100 blocks it can be disputed" So I can't 100% trust any transaction until after 100 blocks, right?
Komodo Platform is eliminating the scalability problem for the blockchain industry. Komodo's solution has achieved over 20,000 tx/sec. Learn more here.


Voice Record Tests
#voice1 - module support
Test notes:
- Run test
- Result must be
Yes
if audio recording is supported by browser
- If result is no, N/A tests #2 - #6
Test result:
N/A
#voice2 - open and close popup
Test notes:
- Run test
- Popup must have top text, token and left text
- Popup must have correct layout
- Close popup
- Result must be
Rejected: 0
Test result:
N/A
#voice3 - start and close
Test notes:
- Run test, start recording
- Once started capture hint and progress must be shown
- Popup must have correct layout
- Close popup
- Result must be
Rejected: 0
- Repeat test quickly 2 - 3 times
Test result:
N/A
#voice4 - start and stop
Test notes:
- Run test, start recording
- Stop recording
- Result must be
Rejected: 0
- Repeat test quickly 2 - 3 times
Test result:
N/A
#voice5 - disabled mic
Test notes:
- Disable microphone premission
- Run test, start recording
- Result must be
Rejected: -2
Test result:
N/A
#voice6 - record
Test notes:
- Run test, start recording
- Result must play recorded audio
Test result:


State-Share Image
ProposalOpen this web page in two distinct browser tabs/windows, or even two different browsers.
Change the theme of the page by clicking on the buttons below, and thus altering the state.
state = {
app: {
theme: 'night'
}
}
Click on the state-share-image
and copy it to clipboard.
Switch to the other tab/window/browser (or click on another theme), click on the state-share-image
and paste it.
The state of the application has been succesfully encoded into the image (which could be shared with other users or saved externally for later use/referral in a State-Share Images Manager) and then succesfully converted back into a state
object useful for the application, albeit minimal in this particular demonstration.
For the best experience, Chrome is recommended.


You are invited to compare 30 pairs of video relative attributes.
For each pair, please choose the one which you think has more
attributes. You can choose "Equal" for cases that you think they are
the same.
Pls first select confidence value, then compare the ages
You have 30 comparisons to do.
Submitting your results, please wait......
Relative
attribute comparison: [choose one from (V1, V2, and Eq). V1: video 1
has more attribute; V2: video2 has more attribute; Eq: both vidoes have
equal attributes].
[1]Clapping hands: [For which video, can you hear/see more clearly clapping hands?]
V1
Eq
V2
[2]Drinking:[In which video, can you see more clearly people are drinking and/or eating?]
V1
Eq
V2
[3]Dancing:[In which video, can you see more clearly that people are dancing?]
V1
Eq
V2
[4]Fast_moving:[In which video are the objects (e.g. cars, people ) moving faster?]
video1
equal
video2
[5]People_singing:[In which video, can you see/hear more clearly that people are singing a song?]
video1
equal
video2
[6]Group_of_people:[which video is more crowded with people? ]
video1
equal
video2
[7]People_sitting_in_a_row:[In which video, can you see more clearly that people are sitting in a row?]
video1
equal
video2
[8]People_standing_in_a_row:[In which video, can you see more clearly that people are standing in a row?]
video1
equal
video2
[9]Living_room:[which video is more likely taken in a living room?]
video1
equal
video2
[10]Dinning_room:[which video is more likely taken in a dinning room?]
video1
equal
video2
[11]Stadium:[which video is more likely taken in a stadium?]
video1
equal
video2
[12]Church:[which video is more likely taken in a church?]
video1
equal
video2
[13]Park_Garden:[which video is more likely taken in a park garden?]
video1
equal
video2
[14]Urban_scene:[which video is more likely taken in an urban scene?]
video1
equal
video2
[15]indoor:[which video is more likely taken in an indoor environment?]
video1
equal
video2
[16]outdoor:[which video is more likely taken in an outdoor environment?]
video1
equal
video2
[17]bkg_talking_noise:[In which video can you hear more clearly background talking noise?]
video1
equal
video2
[18]Conversation:[In which video can you hear more clearly conversations of people?]
video1
equal
video2
[19]Laughter:[Which video has louder laughing sound?]
video1
equal
video2
[20]Birthday_song:[In which video can you hear more clearly the Happy Birthday Song?]
video1
equal
video2
[21]Wedding_song:[In which video can you hear more clearly the Wedding March music?]
video1
equal
video2
[22]Camera_zoom:[In which video the camera is zooming more?]
video1
equal
video2
[23]Camera_pan:[In which video the camera is panning more?]
video1
equal
video2
[24]Tracking_following_moving_subject:[In which video the camera has longer shoot of tracking moving objects?]
video1
equal
video2


Ticker Class
Ticker
Instantiation
- scrawl.makeTicker()
Purpose
- Defines a linear time sequence to which tweens and other actions can subscribe
Access
- scrawl.animation.TICKERNAME - for the Ticker object
Ticker functions
- Start a Ticker from 0 by calling the run() function on it.
- Tickers can be stopped by calling the halt() function on it.
- Start a Ticker from the point at which it was previously halted by calling the resume() function on it.
- A Ticker can have its current tick amended by calling the seekTo() function on it.
- A Ticker can be deleted by calling the kill() function on it.
Constructor
Ticker
-
[items]
Parameters:
-
[items]
Object optionalKey:value Object argument for setting attributes
Item Index
Methods
Properties
Methods
changeSubscriberDirection
()
private
chainable
Bulk-change the playing direction for all subscribed tweens and actions
Returns:
this
clone
-
items
Clone a Scrawl.js object, optionally altering attribute values in the cloned object
Note that any callback or fn attribute functions will be referenced by the clone, not copied to the clone; these can be overwritten with new anonymous functions by including them in the items argument object
(This function is replaced by the path extension)
Parameters:
-
items
ObjectObject containing attribute key:value pairs; will overwrite existing values in the cloned, but not the source, Object
Returns:
Cloned object
Example:
var box = scrawl.makeBlock({
width: 50,
height: 50
});
var newBox = box.clone({
height: 100
});
newBox.get('width'); //returns 50
newBox.get('height'); //returns 100
complete
()
chainable
Reset ticker to final conditions
Returns:
this
fn
-
[reverseOrder]
Animation function
Parameters:
-
[reverseOrder]
Boolean optionalwhen true, perform update from last subscriber to first; default false
Returns:
this
get
-
item
Retrieve an attribute value. If the attribute value has not been set, then the default value for that attribute will be returned.
Parameters:
-
item
StringAttribute key
Returns:
Attribute value
Example:
var box = scrawl.makeBlock({
width: 50,
});
box.get('width'); //returns 50
box.get('height'); //returns 0
box.get('favouriteAnimal'); //returns undefined
halt
()
chainable
Halt ticker
Returns:
this
kill
()
Remove this Ticker from the scrawl library
Returns:
Always true
killTweens
()
Remove this Ticker from the scrawl library (if argument is true), alongside any tweens associated with it
Returns:
true if argument is true; this otherwise (default)
makeTickerUpdateEvent
()
Make a new tickerupdate customEvent object
Returns:
customEvent object, or null if browser does not support custom events
numberConvert
-
val
-
dim
Stamp helper function - convert string percentage values to numerical values
Parameters:
-
val
Stringcoordinate String
-
dim
Numberdimension value
Returns:
Number - value
parse
()
Turn the object into a JSON String
Returns:
object of object's currently set attributes
recalculateEffectiveDuration
()
private
chainable
Recalculate the ticker's effective duration
Returns:
this
reset
()
chainable
Reset ticker to initial conditions
Returns:
this
resume
()
chainable
Resume ticker
Returns:
this
reverse
()
chainable
Reverse tracker direction and continue playing
Returns:
this
run
()
chainable
Start ticker from 0
Returns:
this
seekFor
-
seekfor
-
[resume]
seekFor a different relative point on the ticker
Parameters:
-
seekfor
Numbertime in milliseconds from current tick; default 0 - no change
-
[resume]
Boolean optional- flag - when true, the resume() function will trigger; false (default) triggers a single call to the fn() function
Returns:
this
seekTo
-
seekto
-
[resume]
seekTo a different specific point on the ticker
Parameters:
-
seekto
Numbertime in milliseconds from start of ticker; default 0 - effectively sets ticker back to starting conditions
-
[resume]
Boolean optional- flag - when true, the resume() function will trigger; false (default) triggers a single call to the fn() function
Returns:
this
set
-
[items]
Set attributes - restricted so that only subscribers, order, duration and cycles attributes can be amended
Parameters:
-
[items]
Object optionalObject containing key:value parameters for updating
Returns:
this
setEffectiveDuration
()
private
chainable
Set the ticker's effective duration from this.duration
Returns:
this
sortSubscribers
()
private
chainable
Order subscriber tweens by their time attributes, lowest to highest
Returns:
this
subscribe
-
[items]
Add a Tween or Action's name to the Ticker's .subscribers array
Parameters:
-
[items]
Array optionalArray containing String name values, or Objects with a .name attribute; alternatively can be a single String or Object
Returns:
this
unsubscribe
-
[items]
Remove a Tween or Action's name from the Ticker's .subscribers array
Parameters:
-
[items]
Array optionalArray containing String name values, or Tween/Action Objects with a .name attribute; alternatively can be a single String or Object
Returns:
this
updateSubscribers
-
items
-
[reversed]
Change the supplied attributes for each subscribed tween and action
Parameters:
-
items
ObjectObject containing key:value parameters for updating
-
[reversed]
Boolean optionalwhen true, perform update from last subscriber to first; default false
Returns:
this
Properties
comment
String
Comment, for accessibility
Default: ''
cycles
Number
Number of times to cycle the ticker:
- 0 - the ticker will repeat until stopped
0 - the ticker will repeat the given number of cycles, then stop
Default action is to run the ticker once, then stop it
Default: 1
duration
Number
Ticker length, in milliseconds
If no duration is set, Ticker will set the last subscribed object's end time as its effective duration
Default: 0
eventChoke
Number
Event choke value
A ticker will trigger a timeupdate event on the document object as it runs, with details of the ticker's current state including:
- name
- tick (milliseconds)
If the eventChoke attribute is set to 0 (default), no tickerupdate events are fired as the ticker runs - thus this value needs to be set explicitly to make the Ticker emit events. Otherwise, this value represents the time between each event emission
Default: 0
killOnComplete
Boolean
When set to true, Ticker will delete itself and any associated tweens from the scrawl library
Default: false
name
String
Unique identifier for each object; default: computer-generated String based on Object's type
order
Number
Animation order
Objects in the animation loop are sorted by their order values, and run as part of the animation loop from lowest to highest order value. There is no guarantee in which order objects with the same order value will run during each animation loop
Default: 0
subscribers
Array
Array of String names of tween and action subscribers to this Ticker
Default: []
timestamp
String
Creation timestamp
Default: ''
title
String
Title, for accessibility
Default: ''
type
String
final
Default: 'Ticker'


paragraph
It appears you don't have a PDF plugin for this browser. Click here to download the PDF file.
computer code
<html>
Quote
Block quote
Edit me.
Drag and drop me.
The red panda is endemic to the temperate forests of the Himalayas, and ranges from the foothills of western Nepal to China in the east. Its easternmost limit is the Qinling Mountains of the Shaanxi Province in China. Its range includes southern Tibet, Sikkim and Assam in India, Bhutan, the northern mountains of Burma, and in south-western China, in the Hengduan Mountains of Sichuan and the Gongshan Mountains in Yunnan.
The red panda's local names differ from place to place. The Lepcha people call it sak nam. In Nepal, the species is called bhalu biralo (bear-cat) and habre.
The red panda was recognized as the state animal of Sikkim in the early 1990s, and was the mascot of the Darjeeling Tea Festival.
Lorem ipsum
less than = < = < = <
greater than = > = > = >
ampersand = & = & = &
quote = " = " = "
apostrophe = ' = ' = '
euro = € = € = €
copyright = © = © = ©
registered = ® = ® = ®
trademark = ™ = ™ = ™
Described element
Hidden element for screen readers


We will try to weather Zimbabwe storms, Nestle SA boss tells Mnangagwa
by Staff ReporterNestle says it is committed to continued operation in Zimbabwe and will further invest in the country, especially in supporting dairy and coffee farmers.
This is despite the challenges that the southern African country is currently experiencing.
Speaking after meeting President Emmerson Mnagangwa, Nestle South Africa chairman and managing director Bruno Olierhoek, who was accompanied by Chris Johnson, the executive vice president and chief executive officer for Asia, Oceania and Sub-Saharan Africa, said his company, through Nestle Zimbabwe, would “try to thrive” despite the situation on the ground.
“Our commitment to the President (Mnangagwa) was that we will try really to do our best to stay in the country.”
He said if the situation requires a change of business model and indeed to be less dependent on imported things, then his company will work on developing the local industry.
He said his company will work with farmers in the coffee and those in the dairy sector for critical inputs into the business.
We will work on “increasing what they can supply us as per the standards,” said Olierhoek.
His comments come as another dairy processing company, Dairibord, blamed drop in sales volume to supply side constraints, namely continual deterioration of macro-economic fundamentals compounded with foreign currency, electricity and water shortages.
“These in turn had led to low production output, increased utility costs and depressed consumer disposable incomes,” said Dairibord last week.


Hello My Name Is George Kalonde
I have been working with Non Profit Organization (NGO's) for 6 years
I started working when i was 18 years in 2016
as a facilitator
I have worked much with Health Organization
I have worked in almost 3 Large Organisations in Program Departments
Project Management and Implementation thats what am good at
in 2017 I founded my Non-Profit Organization(CBO) and got registered in 2018
It has been running till date
It was a hustle to sustain an org without funds
until we started having grants from different institution
With our services we will mentor and guide you what to do & donts
Get Connected to My services Now
Back to Home


The surface is heated up by radiation. Image analysis should be used to compute the area above a certain temperature level. Here the mandrill serves instead of an IR-image
disp('This demo is meant to run in cell mode.') return;
This demo is meant to run in cell mode.
load mandrill im=ind2rgb(X,map); sz=size(im); ix=sz(1); iy=sz(2); % filter the image h=fspecial('average',5); filtim=imfilter(im,h); % create reference surface [x,y,z]=peaks(30); sz=size(z); sx=sz(1); sy=sz(2); % scaling xfkt=sx/ix; yfkt=sy/iy; % plot image on surface warp(z,filtim) hold on; % compute isoline for red level % and plot 1st isoline only rlevel=0.84 [c,h]=contour(filtim(:,:,1),[rlevel]); idx=2:c(2,1); plot3(c(1,idx)*xfkt,c(2,idx)*yfkt,idx*0+5,'b.') axis([0 sx 0 sy -10 10]) title(['cut-level: ' num2str(rlevel)])
rlevel = 0.8400
delaunay the surface, resize the image to the surface's points; make sure there are enough triangles covering the the color area of interest
tri = delaunay(x,y);
ptsim=imresize(filtim,[sx sy]);
rptsim=ptsim(:,:,1);
figure
mesh(rptsim)
title('smmothed red part of image')
figure warp(x,y,z,ptsim) title('resized to surface resolution') hold on
rptsim=rptsim(:); rlevel=0.84; ridx=find(rptsim>rlevel); rtrue=zeros(sx*sy,1); rtrue(ridx)=1; count=rtrue(tri(:,1)); count=count+rtrue(tri(:,2)); count=count+rtrue(tri(:,3)); % try also 1 or 3 red corners: its fun to see idx=find(count>=2); rtri=tri(idx,:); % and display them on top of the image trisurf(rtri,x,y,z) % compute the area of the triangles under % consideration, formula taken from a % textbook: Area=1/2*c*hc, hc=b*sin(alpha). ntri=length(rtri); triarea=0; for k=1:ntri, xt=x(rtri(k,:)); yt=y(rtri(k,:)); zt=z(rtri(k,:)); A=[xt(1) yt(1) zt(1)]; % corner vectors of triangle B=[xt(2) yt(2) zt(2)]; C=[xt(3) yt(3) zt(3)]; va=B-C; % side vectors of triangle vb=A-C; vc=A-B; a=sqrt(va*va'); % side lengths of triangle b=sqrt(vb*vb'); c=sqrt(vc*vc'); if abs(a*b*c)<1e-8 % avoid 1/0 triarea(k)=0; else % compute area per triangle hh=(vb*vc')^2/((vb*vb')*(vc*vc')); triarea(k) = 0.5*c*b*sqrt(1-hh); end end title(['Area of triangles in square pixels: ' num2str(sum(triarea))])