|
Shift Invariant Space Library (SISL)
|
Global namespace for all of SISL. More...
Namespaces | |
| test | |
| Namespace for most test functions within SISL, this includes anything that would be useful for verification of experimental results. | |
| utility | |
| Namespace for utility functions, anything that's generally helpful, but not related to shift invariant spaces. | |
Classes | |
| class | array_n |
| An n-dimensional array. This class abstracts away the concept of an n-dimensional array, it should be easy to create an array of type T on N dimensions. This is useful as it often ends up being the case that many integer sampling lattices can be broken down into interleaved Cartesian grids. At the end of the day, this implementation flattens the representation down onto dense linear memory. More... | |
| class | base_lattice |
| Base abstract lattice class. Defines the base class for a lattice, which are by definition subsets of Z^n. More... | |
| class | basis_function |
| Abstract definition of a basis function. Provides an interface that any basis function of a shift invariant space must adhere to. This also provides the heavy lifting code for a ``brute force'' convolution sum. tp_linear is a good example of how to implement basis functions. More... | |
| class | bcc_quintic_rdo |
| Quintic BCC basis function. More... | |
| class | body_centered_cubic |
| Defines the body centered cubic lattice in 3d. More... | |
| class | cartesian_cubic |
| A specialized cubic Cartesian lattice class. More... | |
| class | cartesian_planar |
| A specialized Cartesian planar lattice class. More... | |
| class | function |
| Abstract base class for a function. Defines a function that is valid over all R^n, it's up to the underlying implementation to decide how those values map to real values. More... | |
| class | nearest_neighbor |
| Nearest neighbor interpolation for any lattice. Simply finds the nearest lattice site and returns the value at that site. This class doesn't implement phi or dphi functions, as one would need to know the lattice a-priori for those, and this class structure isn't sophisticated enough to facilitate that. More... | |
| struct | plane |
| 3D plane class. More... | |
| struct | ray |
| A ray in space. More... | |
| class | si_function |
| Combines a lattice and a generating function. More... | |
| class | sparse_array_n |
| An n-dimensional sparese array. This class abstracts away the concept of an n-dimensional array, it should be easy to create an array of type T on N dimensions. It differes from an array in that, when instantiated, it consumes no memory. When you begin to fill cells of the array with data, only then does memory begin to fill up. Accessing a cell without data returns "defaultValue", which is set in the constructor. More... | |
| class | tp_cubic |
| Tensor product cubic spline. More... | |
| class | tp_cubic_imom |
| Tensor product cubic interpolating MOM. More... | |
| class | tp_linear |
| Tensor product linear basis function. Tensor product linear basis function. On the planar and cubic Cartesian lattices, we have FAST_BASES which correspond to bilinear and trilinear interpolation. More... | |
| class | tp_quadratic |
| Tensor product quadratic spline. More... | |
| struct | triangle |
| Triangle in 3D space. More... | |
| struct | vertex3 |
| 3D vertex. More... | |
| class | zp3_element |
Typedefs | |
| using | vector = Eigen::Matrix< sisl_float, Eigen::Dynamic, 1 > |
| dynamically sized (mathematical) vector datatype | |
| using | point = Eigen::Matrix< sisl_float, Eigen::Dynamic, 1 > |
| dynamically size point datatype | |
| using | transform = Eigen::Matrix< sisl_float, Eigen::Dynamic, Eigen::Dynamic > |
| Dynamically sized transform (i.e. matrix) | |
| using | rgb_color = Eigen::Matrix< sisl_float, 3, 1 > |
| A fixed size 3-vector for holding colours. | |
| using | rgba_color = Eigen::Matrix< sisl_float, 4, 1 > |
| A fixed size 4-vector for holding colours and an alpha channel. | |
| using | lattice_site = Eigen::Matrix< int, Eigen::Dynamic, 1 > |
| Lattice_site are integer tuples (vectors) | |
| using | int_tuple = Eigen::Matrix< int, Eigen::Dynamic, 1 > |
| integer tuples (vectors) | |
Enumerations | |
| enum | LatticeExtensionType { InvalidAccess = -1, ForceZero = 0, Periodic, Extend_Even_Even, Extend_Even_Odd, Extend_Odd_Even, Extend_Odd_Odd } |
| Defines how a lattice should be extended. Useful for data processing that requires perodic behaviour. More... | |
| enum | LatticeRegionShift { NoShift = 0, Shift, None_Shift, Shift_None, Shift_Shift } |
| Defines how a lattice extension gets shifted. | |
| enum | e_datatype { SDT_UNKNOWN = -1, SDT_UINT8 = 0, SDT_UINT16 = 1, SDT_UINT32 = 2, SDT_FLOAT = 3, SDT_DOUBLE = 4 } |
Functions | |
| template<class T > | |
| double | __fast_planar_tp_linear__ (const vector &p, const cartesian_planar< T > *lattice) |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_planar, __fast_planar_tp_linear__, 2, unsigned char) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_planar, __fast_planar_tp_linear__, 2, char) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_planar, __fast_planar_tp_linear__, 2, short) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_planar, __fast_planar_tp_linear__, 2, int) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_planar, __fast_planar_tp_linear__, 2, float) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_planar, __fast_planar_tp_linear__, 2, double) | |
| template<class T > | |
| double | __fast_cubic_tp_linear__ (const vector &p, const cartesian_cubic< T > *lattice) |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_cubic, __fast_cubic_tp_linear__, 3, unsigned char) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_cubic, __fast_cubic_tp_linear__, 3, char) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_cubic, __fast_cubic_tp_linear__, 3, short) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_cubic, __fast_cubic_tp_linear__, 3, int) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_cubic, __fast_cubic_tp_linear__, 3, float) | |
| FAST_BASIS_SPECIALIZATION (tp_linear, cartesian_cubic, __fast_cubic_tp_linear__, 3, double) | |
| template<class O , class I , class BF > | |
| regular_function_space< CC_LATTICE(O, I), BF, O, I, 2 > * | read_2d_raw_file (int rx, int ry, I scale_x, I scale_y, const std::string &file, const e_datatype &type) |
| template<class T > | |
| void | sample_on_lattice (const vector &origin, const vector &extent, base_lattice< T > *l, function *f) |
Global namespace for all of SISL.
Default evaluation code for the spline defined by [-1 1 1 -1 -1 1 1 -1] [ 1 -1 1 -1 1 -1 1 -1] [ 1 1 -1 -1 1 1 -1 -1] Auto-generated from the Sage worksheet.
Default evaluation code for the spline defined by [-1 1 1 -1 1 0 0] [ 1 -1 1 -1 0 1 0] [ 1 1 -1 -1 0 0 1] Auto-generated from the Sage worksheet.
nearest_neighbor.hpp Nearest neighbor interpolation on any lattice, in any dimension.
tp_cubic.hpp Implements the tensor product cubic b_spline in 'N' dimensions.
tp_cubic_imom.h Implements the tensor product interpolating cubic imom in 'N' dimensions.
b_3imom(x) = b_3(x) - 1/6 d^2/dx^2 b_3(x)
tp_linear.hpp Implements the tensor product linear b_spline in 'N' dimensions.
Box spline generating matrix: [1, 0, 0] [0, 1, 0] [0, 0, 1]
tp_quadratic.hpp Implements the tensor product quadratic b_spline in 'N' dimensions.
Box spline generating matrix: [1, 0, 0, 1, 0, 0] [0, 1, 0, 0, 1, 0] [0, 0, 1, 0, 0, 1]
Abstract class that defines the basic structure of a function in SISL. Basically, all functions are mappings from R^n to R, and only need to provide a means of reconstructing values from that function space.
This file defines functions from a shift invariant space. We call these Shift Invariant Functions (si_functions), which is a slight abuse of naming to mean that they come from shift invariant spaces.
A specialized implementation of the planar Cartesian lattice.
A specialized implementation of the A*_3 lattice.
Horacsek
A specialized implementation of the Cartesian cubic lattice. The general implemnetation exists in sisl/n_cartesian.hpp
base_lattice.hpp Defines the abstract class for a lattice.
Lattices are basically containers for values of a generic type T. Specialized implementations can often leverage faster implementations of certain method implementations.
This class defines a general abstraction to multi-dimensional arrays. Basically, we want a templated base class to define how access should be implemented – this builds a base for the rules that potentially more sparse representations use.
This class defines another abstraction to multi-dimensional arrays. This is much like array.hpp, but uses a dictionary to sparesely store values.
marschner_lobb.hpp Defines the marschner-lobb test function as a descendent of the function abstract class.
Defines a test window function in 3D.
iso_surface.hpp A marching cubes implementation for functions. Any function that inherits from fuction in base_function.hpp can use this implementation to quickly output a mesh.
ply_mesh.hpp A very quick n' dirty implementation of a mesh writer. Mainly used to quickly output meshes from a marching algo.
TODO: Add a more sophisticated spatial data structure for duplicate vertex detection.
Simple PPM image writer. Mainly used for quick and dirty output testing.
| enum sisl::e_datatype |
The various datatypes SISL can read, mainly used in the raw filetype reader
Defines how a lattice should be extended. Useful for data processing that requires perodic behaviour.
|
inline |
Dimension: 3 Lattice: Cartesian (cubic) In this case, we can just do a tri-linear interpolation of the values at the corners of a shifted voronoi cell.
|
inline |
Dimension: 2 Lattice: Cartesian (planar) In this case, we can just do a bi-linear interpolation of the values at the corners of a shifted voronoi cell.
| void sisl::sample_on_lattice | ( | const vector & | origin, |
| const vector & | extent, | ||
| base_lattice< T > * | l, | ||
| function * | f | ||
| ) |
Samples a function on to any lattice note that this function may or may not be broken with the most recent convention change
| origin | where to start sampling |
| extent | cuboid volume to capture |
| l | lattice on which to sample |
| f | a fucntion to evaluate |


Nonmetric multidimensional scaling (NMDS) ordination of subtropical forest tree communities with distinct management histories in 2000 and 2009 in subtropical South America. Light symbols = 2000, Dark symbols = 2009, Δ = Unlogged plots, ᴏ = Early logged plots, □ = Recently logged plots


--- layout: post title: Gmail Hell date: '2012-09-05 21:44:21 -0700' mt_id: 1497 blog_id: 1 post_id: 1497 basename: gmail-hell categories: - personal - high-geekery - google ---
I got my Gmail invitation back in June 2004 and was able to register my preferred username with no trouble. At the time, I was supremely excited to a) get an invitation to the great new service and b) get a username that is easily read out loud. I used it a little bit but soon got my own domain name (this one) and set up my own email address.
The Gmail account mostly just sat idle and I would use it sparingly—mostly on Web forms with terrible validation that wouldn't accept this domain name. In the last three or four years, though, it's seen a terrific increase in activity.
The problem is that my username can easily be used by every Barb, Barry, and Brandon. And they use it! For a while, I dutifully replied to email threads saying that they had the wrong email address. Once that became overwhelming, I just started deleting them en masse and reporting everything as spam.
Then I couldn't keep up with that. I now get about 10K emails a month that Google accurately deemed spam and I manually cull at least another thousand by reporting them as spam. That's irritating but not the most boggling part of this story.
Lately, I've been getting confirmation and "welcome to" emails. People around the country are using my email address for their accounts. In so doing, these people give me full access to their Dish Network, Netflix, Hulu Plus, and Redbox accounts. They are lucky that I'm a fine upstanding citizen, but you can't count on that in this day and age.
Today was the real shocker, which precipitated this blog entry. I got an itinerary confirmation from Priceline for a trip to Portland, Oregon! Who on earth attaches their travel plans to an email address they don't control. I'm flabbergasted!
[UPDATE (4/28/2013): Apparently I'm not the only one this has happened to.]


Cleaning data
No data are ever perfect, but that doesn't mean you're not going to have to tangle with its shortcomings on deadline. Once we assess the issues, we can outsource the tedium of cleaning to a Python script. If we ever receive an updated data set from the same source, we have an automated way to run through out and output something we can use for reporting.
This exercise hits three different kinds of cleaning that are fairly common:
-
Data that don't arrive in flat file format, where one row equals one record. We'll work through a very formatted Excel file of candidate filings and convert it to a worksheet we can use.
-
Data that are just plain dirty: leading and trailing spaces, misspellings, unnecessary characters and more.
-
Parsing out names. We'll scrape some board and commission pages from the city of Chicago's website and use some hints in table to help us split names into title, first, middle, last and suffix.
The files:
-
excel.py: The script we'll write to turn formatted Excel designed for printing into a flat file we can use for analysis and reporting.
-
fun_with_excel.py: A tour of the
openpyxl
library and how it can read and write Microsoft Excel formats from 2007 and later. -
clean_csv.py: We'll write Python in this to process a dirty CSV file.
-
names.py: The script that will scrape board and commission pages and process the names.
-
Candidates.xlsx: Our formatted Excel file of campaign filings.
-
Candidates_backup.xlsx: A backup of the formatted Excel file (in case we mess it up).
-
rahm_spending.csv: The problematic CSV file with dirty columns.
In case of no internet, boards_backup contains the files to scrape for names.py. Finished versions are in completed.


I am AI Research Engineer working in natural language processing and medical image classification
Visualization of coronavirus spread in Poland with live data, map and twitter analysis
Visualization of K-nearest algortim executed on set of points with given number of centroid created with javascript and p5.js library
Visualization of electric field between two charges created with javascript and p5.js library
In this tutorial we discover how chat bot works and how to use word embeddings and flair to construct simple one i just 50 lines of code
Gentle introduction to neural networks based on visual examples
An attempt to crate sentiment classifier for polish language from data found in movie reviews using Naive Bayes Theory
Theory behind creating simple neural network (multilayer perceptron) and a python library to see it in action


vignettes/shiny_deployment.Rmd
shiny_deployment.Rmd
This vignette walks through deploying a Reactor notebook as a Shiny application on shinyapps.io. First, we load the Reactor
package:
For this vignette, we’ll use the Gaussian Processes example notebook provided in the package:
notebook <- reactor_example("gaussian_processes.Rmd")
If you’d like to start from scratch with a new notebook, you can run:
notebook <- ReactorNotebook$new()
server <- start_reactor(notebook)
Now that we have a notebook, we need to export it as a Shiny application. The export_shiny
function takes a notebook and creates two files in a given directory: notebook.Rmd
, which contains the Reactor notebook, and app.R
, which launches the notebook as a Shiny application. Create a folder, here we call it app
, and then run:
export_shiny(notebook, "./app")
The newly created file ./app/app.R
contains the following:
# shinyApp
library(shiny)
library(reactor)
notebook <- ReactorNotebook$load('notebook.Rmd')
start_reactor_as_shiny(notebook)
If you open app.R
in RStudio, it will recognize it as a Shiny application and the Run App
button will appear above the editor. You can deploy the application to shinyapps.io
using the built-in tools from RStudio.
Alternatively, you can deploy the application directly from R using the rsconnect
package. The package’s “Getting Started” vignette describes how to do so in detail; we summarize the steps in this vignette as well.
First, load the rsconnect
package and set the account name, token, and secret, which can be found on the Profile / Tokens page of your shinyapps.io account.
library(rsconnect)
rsconnect::setAccountInfo(name="<ACCOUNT>", token="<TOKEN>", secret="<SECRET>")
Next, deploy the application using the deployApp
function, supplying an application name:
deployApp(appDir = "app", appName = "gaussian_processes")
Once the deployment is complete, the notebook will be available as an online Shiny application. The example notebook used here can be found at https://hsusmann.shinyapps.io/gaussian_processes/.


--- layout: page title: Contact permalink: /contact/ ---
25800 Carlos Bee Blvd, Hayward, CA 94542
To get in contact with the organization, contact Ally Heuer, Director of Public Outreach, at<EMAIL_ADDRESS>To reach a specific member, send an email to their first name, plus the extension .actioncongress.org


Table of Contents
Questions & Feedback
Found a typo or an error?
Want to improve this document? Edit it.
Need support or have a technical question?
Post to the user mailing-list.
Master Symfony2 fundamentals
Symfony hosting done right
Discover the SensioLabs Support
The Big Picture
- Quick Tour
- The Big Picture
- The View
- The Controller
- The Architecture
The Big Picture¶
Start using Symfony2 in 10 minutes! This chapter will walk you through some of the most important concepts behind Symfony2 and explain how you can get started quickly by showing you a simple project in action.
If you've used a web framework before, you should feel right at home with Symfony2. If not, welcome to a whole new way of developing web applications!
Tip
Want to learn why and when you need to use a framework? Read the "Symfony in 5 minutes" document.
Downloading Symfony2¶
First, check that you have installed and configured a Web server (such as Apache) with PHP 5.3.3 or higher.
Tip
If you have PHP 5.4, you could use the built-in web server. The built-in server should be used only for development purpose, but it can help you to start your project quickly and easily.
Just use this command to launch the server:
1 | $ php -S localhost:80 -t /path/to/www
|
where "/path/to/www" is the path to some directory on your machine that you'll extract Symfony into so that the eventual URL to your application is "http://localhost/Symfony/app_dev.php". You can also extract Symfony first and then start the web server in the Symfony "web" directory. If you do this, the URL to your application will be "http://localhost/app_dev.php".
Ready? Start by downloading the "Symfony2 Standard Edition", a Symfony distribution that is preconfigured for the most common use cases and also contains some code that demonstrates how to use Symfony2 (get the archive with the vendors included to get started even faster).
After unpacking the archive under your web server root directory, you should
have a Symfony/
directory that looks like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | www/ <- your web root directory
Symfony/ <- the unpacked archive
app/
cache/
config/
logs/
Resources/
bin/
src/
Acme/
DemoBundle/
Controller/
Resources/
...
vendor/
symfony/
doctrine/
...
web/
app.php
...
|
Note
If you are familiar with Composer, you can run the following command instead of downloading the archive:
1 2 3 4 | $ composer.phar create-project symfony/framework-standard-edition path/to/install 2.2.0
# remove the Git history
$ rm -rf .git
|
For an exact version, replace 2.2.0 with the latest Symfony version (e.g. 2.1.1). For details, see the Symfony Installation Page
Tip
If you have PHP 5.4, you can use the built-in web server:
1 2 3 4 5 | # check your PHP CLI configuration
$ php ./app/check.php
# run the built-in web server
$ php ./app/console server:run
|
Then the URL to your application will be "http://localhost:8000/app_dev.php"
The built-in server should be used only for development purpose, but it can help you to start your project quickly and easily.
Checking the Configuration¶
Symfony2 comes with a visual server configuration tester to help avoid some headaches that come from Web server or PHP misconfiguration. Use the following URL to see the diagnostics for your machine:
1 | http://localhost/config.php
|
Note
All of the example URLs assume that you've downloaded and unzipped Symfony directly into the web server web root. If you've followed the directions above and unzipped the Symfony directory into your web root, then add /Symfony/web after localhost for all the URLs you see:
1 | http://localhost/Symfony/web/config.php
|
Note
All of the example URLs assume that you've downloaded and unzipped Symfony
directly into the web server web root. If you've followed the directions
above and done this, then add /Symfony/web
after localhost
for all
the URLs you see:
1 | http://localhost/Symfony/web/config.php
|
To get nice and short urls you should point the document root of your
webserver or virtual host to the Symfony/web/
directory. In that
case, your URLs will look like http://localhost/config.php
or
http://site.local/config.php
, if you created a virtual host to a
local domain called, for example, site.local
.
If there are any outstanding issues listed, correct them. You might also tweak your configuration by following any given recommendations. When everything is fine, click on "Bypass configuration and go to the Welcome page" to request your first "real" Symfony2 webpage:
1 | http://localhost/app_dev.php/
|
Symfony2 should welcome and congratulate you for your hard work so far!
Understanding the Fundamentals¶
One of the main goals of a framework is to ensure Separation of Concerns. This keeps your code organized and allows your application to evolve easily over time by avoiding the mixing of database calls, HTML tags, and business logic in the same script. To achieve this goal with Symfony, you'll first need to learn a few fundamental concepts and terms.
Tip
Want proof that using a framework is better than mixing everything in the same script? Read the "Symfony2 versus Flat PHP" chapter of the book.
The distribution comes with some sample code that you can use to learn more about the main Symfony2 concepts. Go to the following URL to be greeted by Symfony2 (replace Fabien with your first name):
1 | http://localhost/app_dev.php/demo/hello/Fabien
|
What's going on here? Let's dissect the URL:
app_dev.php
: This is a front controller. It is the unique entry point of the application and it responds to all user requests;/demo/hello/Fabien
: This is the virtual path to the resource the user wants to access.
Your responsibility as a developer is to write the code that maps the user's
request (/demo/hello/Fabien
) to the resource associated with it
(the Hello Fabien!
HTML page).
Routing¶
Symfony2 routes the request to the code that handles it by trying to match the
requested URL against some configured paths. By default, these paths
(called routes) are defined in the app/config/routing.yml
configuration
file. When you're in the dev
environment -
indicated by the app_**dev**.php front controller - the app/config/routing_dev.yml
configuration file is also loaded. In the Standard Edition, the routes to
these "demo" pages are placed in that file:
1 2 3 4 5 6 7 8 9 10 11 | # app/config/routing_dev.yml
_welcome:
path: /
defaults: { _controller: AcmeDemoBundle:Welcome:index }
_demo:
resource<EMAIL_ADDRESS>type: annotation
prefix: /demo
# ...
|
The first three lines (after the comment) define the code that is executed
when the user requests the "/
" resource (i.e. the welcome page you saw
earlier). When requested, the AcmeDemoBundle:Welcome:index
controller
will be executed. In the next section, you'll learn exactly what that means.
Tip
The Symfony2 Standard Edition uses YAML for its configuration files, but Symfony2 also supports XML, PHP, and annotations natively. The different formats are compatible and may be used interchangeably within an application. Also, the performance of your application does not depend on the configuration format you choose as everything is cached on the very first request.
Controllers¶
A controller is a fancy name for a PHP function or method that handles incoming
requests and returns responses (often HTML code). Instead of using the
PHP global variables and functions (like $_GET
or header()
) to manage
these HTTP messages, Symfony uses objects: Request
and Response
. The simplest possible
controller might create the response by hand, based on the request:
1 2 3 4 5 | use Symfony\Component\HttpFoundation\Response;
$name = $request->query->get('name');
return new Response('Hello '.$name, 200, array('Content-Type' => 'text/plain'));
|
Note
Symfony2 embraces the HTTP Specification, which are the rules that govern all communication on the Web. Read the "Symfony2 and HTTP Fundamentals" chapter of the book to learn more about this and the added power that this brings.
Symfony2 chooses the controller based on the _controller
value from the
routing configuration: AcmeDemoBundle:Welcome:index
. This string is the
controller logical name, and it references the indexAction
method from
the Acme\DemoBundle\Controller\WelcomeController
class:
1 2 3 4 5 6 7 8 9 10 11 12 | // src/Acme/DemoBundle/Controller/WelcomeController.php
namespace Acme\DemoBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
class WelcomeController extends Controller
{
public function indexAction()
{
return $this->render('AcmeDemoBundle:Welcome:index.html.twig');
}
}
|
Tip
You could have used the full class and method name -
Acme\DemoBundle\Controller\WelcomeController::indexAction
- for the
_controller
value. But if you follow some simple conventions, the
logical name is shorter and allows for more flexibility.
The WelcomeController
class extends the built-in Controller
class,
which provides useful shortcut methods, like the
render()
method that loads and renders a template
(AcmeDemoBundle:Welcome:index.html.twig
). The returned value is a Response
object populated with the rendered content. So, if the needs arise, the
Response can be tweaked before it is sent to the browser:
1 2 3 4 5 6 7 | public function indexAction()
{
$response = $this->render('AcmeDemoBundle:Welcome:index.txt.twig');
$response->headers->set('Content-Type', 'text/plain');
return $response;
}
|
No matter how you do it, the end goal of your controller is always to return
the Response
object that should be delivered back to the user. This Response
object can be populated with HTML code, represent a client redirect, or even
return the contents of a JPG image with a Content-Type
header of image/jpg
.
Tip
Extending the Controller
base class is optional. As a matter of fact,
a controller can be a plain PHP function or even a PHP closure.
"The Controller" chapter of the book tells you
everything about Symfony2 controllers.
The template name, AcmeDemoBundle:Welcome:index.html.twig
, is the template
logical name and it references the
Resources/views/Welcome/index.html.twig
file inside the AcmeDemoBundle
(located at src/Acme/DemoBundle
). The bundles section below will explain
why this is useful.
Now, take a look at the routing configuration again and find the _demo
key:
1 2 3 4 5 | # app/config/routing_dev.yml
_demo:
resource<EMAIL_ADDRESS>type: annotation
prefix: /demo
|
Symfony2 can read/import the routing information from different files written
in YAML, XML, PHP, or even embedded in PHP annotations. Here, the file's
logical name is @AcmeDemoBundle/Controller/DemoController.php
and refers
to the src/Acme/DemoBundle/Controller/DemoController.php
file. In this
file, routes are defined as annotations on action methods:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | // src/Acme/DemoBundle/Controller/DemoController.php
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
class DemoController extends Controller
{
/**
* @Route("/hello/{name}", name="_demo_hello")
* @Template()
*/
public function helloAction($name)
{
return array('name' => $name);
}
// ...
}
|
The @Route()
annotation defines a new route with a path of
/hello/{name}
that executes the helloAction
method when matched. A
string enclosed in curly brackets like {name}
is called a placeholder. As
you can see, its value can be retrieved through the $name
method argument.
Note
Even if annotations are not natively supported by PHP, you use them extensively in Symfony2 as a convenient way to configure the framework behavior and keep the configuration next to the code.
If you take a closer look at the controller code, you can see that instead of
rendering a template and returning a Response
object like before, it
just returns an array of parameters. The @Template()
annotation tells
Symfony to render the template for you, passing in each variable of the array
to the template. The name of the template that's rendered follows the name
of the controller. So, in this example, the AcmeDemoBundle:Demo:hello.html.twig
template is rendered (located at src/Acme/DemoBundle/Resources/views/Demo/hello.html.twig
).
Tip
The @Route()
and @Template()
annotations are more powerful than
the simple examples shown in this tutorial. Learn more about "annotations
in controllers" in the official documentation.
Templates¶
The controller renders the
src/Acme/DemoBundle/Resources/views/Demo/hello.html.twig
template (or
AcmeDemoBundle:Demo:hello.html.twig
if you use the logical name):
1 2 3 4 5 6 7 8 | {# src/Acme/DemoBundle/Resources/views/Demo/hello.html.twig #}
{% extends "AcmeDemoBundle::layout.html.twig" %}
{% block title "Hello " ~ name %}
{% block content %}

Hello {{ name }}!

{% endblock %}
|
By default, Symfony2 uses Twig as its template engine but you can also use traditional PHP templates if you choose. The next chapter will introduce how templates work in Symfony2.
Bundles¶
You might have wondered why the bundle word is used in many names you
have seen so far. All the code you write for your application is organized in
bundles. In Symfony2 speak, a bundle is a structured set of files (PHP files,
stylesheets, JavaScripts, images, ...) that implements a single feature (a
blog, a forum, ...) and which can be easily shared with other developers. As
of now, you have manipulated one bundle, AcmeDemoBundle
. You will learn
more about bundles in the last chapter of this tutorial.
Working with Environments¶
Now that you have a better understanding of how Symfony2 works, take a closer look at the bottom of any Symfony2 rendered page. You should notice a small bar with the Symfony2 logo. This is called the "Web Debug Toolbar" and it is the developer's best friend.
But what you see initially is only the tip of the iceberg; click on the weird hexadecimal number to reveal yet another very useful Symfony2 debugging tool: the profiler.
Note
You can get more information quickly by hovering over the items on the Web Debug Toolbar.
Of course, you won't want to show these tools when you deploy your application
to production. That's why you will find another front controller in the
web/
directory (app.php
), which is optimized for the production environment:
1 | http://localhost/app.php/demo/hello/Fabien
|
And if you use Apache with mod_rewrite
enabled, you can even omit the
app.php
part of the URL:
1 | http://localhost/demo/hello/Fabien
|
Last but not least, on the production servers, you should point your web root
directory to the web/
directory to secure your installation and have an
even better looking URL:
1 | http://localhost/demo/hello/Fabien
|
Note
Note that the three URLs above are provided here only as examples of how a URL looks like when the production front controller is used (with or without mod_rewrite). If you actually try them in an out of the box installation of Symfony Standard Edition you will get a 404 error as AcmeDemoBundle is enabled only in dev environment and its routes imported in app/config/routing_dev.yml.
To make your application respond faster, Symfony2 maintains a cache under the
app/cache/
directory. In the development environment (app_dev.php
),
this cache is flushed automatically whenever you make changes to any code or
configuration. But that's not the case in the production environment
(app.php
) where performance is key. That's why you should always use
the development environment when developing your application.
Different environments of a given application differ only in their configuration. In fact, a configuration can inherit from another one:
1 2 3 4 5 6 7 | # app/config/config_dev.yml
imports:
- { resource: config.yml }
web_profiler:
toolbar: true
intercept_redirects: false
|
The dev
environment (which loads the config_dev.yml
configuration file)
imports the global config.yml
file and then modifies it by, in this example,
enabling the web debug toolbar.
Final Thoughts¶
Congratulations! You've had your first taste of Symfony2 code. That wasn't so hard, was it? There's a lot more to explore, but you should already see how Symfony2 makes it really easy to implement web sites better and faster. If you are eager to learn more about Symfony2, dive into the next section: "The View".


- Add Questions
- View Questions
- Create Passage
- Exam Settings
Actions:
Delete SubjectTake Course '.$take_course.''; ?>
Students will have no access to this exam if you take it offline
Allocated time for this course is : minute(s).
Set allocated time for this exam:
'; ?>
| ID | Question | True answer | Wrong Option | Wrong Option | Wrong Option | Actions | '.$row['id'].' | '; echo ''.$question.' | '; echo ''.$answer_true.' | '; // do not print column thats equal to true answer - its redundant foreach ($the_questions as $k => $v){ if(!($k === $answer_true)) { echo ''.$v.' | '; $cc++; } } echo ''; echo ''; } } ?> |
You can create a passage for this subject that will then be attached to individual questions in this same subject
This passage will only be displayed along with questions it was attached to.
At the point of adding a particular question, you are given the option to attach a passage you have already created in this section, to the question. The passage attached is then displayed along with the question it was attached to when exam is being taken.
New Exam:
Add questions to created exams
Click to upload a csv copy of questions and answers
Excel file should be in this format: question, option1, option2, option3, RIGHT ANSWER
Add Questions manually
Note: Options should be inputed correctly. They system will shuffled them accordingly.


My long term goal is to be able to have a career that I enjoy and that allows me flexibility. I would like to be able to have a diversity of skills and work on a range of intersting projects. I also love the idea of having a skillset that is in demand worldwide, allowing me to travel and live in different countries if I want to.
I would like to become better at sharing my knowlegde and skill. I have noticed that I am pretty poor at teaching people what I know.
I think I am a good communicator and a good learner, but I know that I am pretty poor at using my skills to the fullest I can sometimes rely on what is easy and not push myself to try hard. I belive that my listening skills could also be improved.
I will manage my workload by structuring my day in a way that works for me. I will do a few hours of solid work and then take a good break, eat some food and do some exercise before I spend another few hours working hard. I will also focus on being open to criticism and listen to what my colleagues and members of my team have to say. Take in suggestions with an open mind.
When I encounter a difficulty with the learning, I will first make sure that I spend some time and effort to find a solution before jumping in and asking for help. Then I will try to seek help from my cohort, listening to their suggestions and brainstroming ideas. The next step would be to ask a member of EDA staff for help and if we are still stuck, as the wider community, on stackoverflow for example.
I expect the facilitation team to help me progress in my learning and get unstuck. Also to point out things that I might be able to do better, and offer constructive criticism.
I am flexible with my availabilities but currently mostly busy on Mondays, Thursdays and Fridays.
Nope.


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Listen to incoming connections and sorts the clients to publishers and subscriber, according to the handshake the client sends.
More...
#include <TlsSocketServer.hpp>
|
| | TlsSocketServer (int port) |
| |
| | ~TlsSocketServer () |
| |
| void | acceptClients () |
| | Accepts clients, recive the handshake and handling the client accordingly. More...
|
| |
| void | removePublisher (std::string id) |
| | Add the string given to the disconnectedPublishsers list. Note this function does not actually remove the publisher from the publishers map, but signals the cleaner thread to remove the publisher. More...
|
| |
Listen to incoming connections and sorts the clients to publishers and subscriber, according to the handshake the client sends.
◆ TlsSocketServer()
| PubSub::TlsSocketServer::TlsSocketServer |
( |
int |
port | ) |
|
◆ ~TlsSocketServer()
| PubSub::TlsSocketServer::~TlsSocketServer |
( |
| ) |
|
◆ acceptClients()
| void PubSub::TlsSocketServer::acceptClients |
( |
| ) |
|
Accepts clients, recive the handshake and handling the client accordingly.
◆ removePublisher()
| void PubSub::TlsSocketServer::removePublisher |
( |
std::string |
id | ) |
|
Add the string given to the disconnectedPublishsers list. Note this function does not actually remove the publisher from the publishers map, but signals the cleaner thread to remove the publisher.
- Parameters
-
| id | The id of the publisher to remove. |
The documentation for this class was generated from the following files:


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An example AYCH address, its connections and statistics.
Some more technical details about GraphSense are described here; please cite as:
@inproceedings{Haslhofer:2016a,
title={O AYCH Where Art Thou? Insight into Large-Scale Transaction Graphs.},
author={Haslhofer, Bernhard and Karl, Roman and Filtz, Erwin},
booktitle={SEMANTiCS (Posters, Demos)},
year={2016}
}
So far, CryptSen has been used for computing statistics in the following scientific papers:
Paquet-Clouston, M., Romiti, M., Haslhofer, B., Charvat, T. Spams meet Cryptocurrencies: Sextortion in the AYCH Ecosystem Advances in Financial Technologies, 2019. (pdf)
Romiti, M., Judmayer, A., Zamyatin, A., Haslhofer, B. A Deep Dive into AYCH Mining Pools: An Empirical Analysis of Mining Shares. Workshop on the Economics of Information Security, 2019. (pdf)
Paquet-Clouston, M., Haslhofer, B., & Dupont, B. Ransomware payments in the aych ecosystem. Journal of Cybersecurity, 5 (1). (pdf)
Filtz, E., Polleres, A., Karl, R., Haslhofer, B.: Evolution of the AYCH Address Graph - An Exploratory Longitudinal Study. International Data Science Conference (DSC 2017), Aych, Belgium, 2019.


Related JIRA Ticket: SOHO-5966
Use the text field below to change the text contents of this tab. The text should also propagate to the Tab's "cutoff" tooltip. Be sure to use text that's long enough to ensure that the tooltip will display.
Use Tab One for the actual test.
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:: com :: sun :: star :: embed ::
|
| constants group EntryInitModes |
- Description
- This constant set contains possible modes to initialize object
persistance.
- See also
- XEmbedPersist
|
| Constants |
| DEFAULT_INIT |
In case object persistance is created based on existing entry,
the object should be initialized from this entry. Otherwise
the object should be initialized as a new one.
|
| TRUNCATE_INIT |
The object should be initialized as a new empty one.
|
| NO_INIT |
The object should be initialized as a new one only in case it still
was not initialized. If the object initialized already do not
reinitialize it.
|
| MEDIA_DESCRIPTOR_INIT |
The object should be initialized using additional arguments from
provided
::com::sun::star::document::MediaDescriptor.
|
| URL_LINK_INIT |
The object should be initialized as a link using URL provided in
additional arguments.
|
| Constants' Details |
DEFAULT_INIT
const long DEFAULT_INIT = 0;
- Description
- In case object persistance is created based on existing entry,
the object should be initialized from this entry. Otherwise
the object should be initialized as a new one.
|
|
TRUNCATE_INIT
const long TRUNCATE_INIT = 1;
- Description
- The object should be initialized as a new empty one.
|
|
NO_INIT
const long NO_INIT = 2;
- Description
- The object should be initialized as a new one only in case it still
was not initialized. If the object initialized already do not
reinitialize it.
|
|
MEDIA_DESCRIPTOR_INIT
const long MEDIA_DESCRIPTOR_INIT = 3;
- Description
- The object should be initialized using additional arguments from
provided
::com::sun::star::document::MediaDescriptor.
|
|
URL_LINK_INIT
const long URL_LINK_INIT = 4;
- Description
- The object should be initialized as a link using URL provided in
additional arguments.
|
|
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Princess Charlotte Looks Exactly Like Her Cousin Lady Kitty Spencer as a Kid
by Alyssa BaileyPrincess Charlotte has her dad Prince William's eyes, her uncle Prince Harry's childhood sass, and pretty astounding resemblance overall to her cousin Lady Kitty Spencer. Those Spencer genes are strong.
Kitty, a 28-year-old model and the late Princess Diana's niece, shared a new childhood photo on her Instagram this weekend where it's hard not to see William and Kate Middleton's four-year-old daughter Charlotte in kid Kitty's face:
Here's two shots of Charlotte for comparison:
This is not the first time Kitty has been called for looking like Charlotte as a kid, as Hello! pointed out. The model shared another childhood shot where several commenters marveled over the Princess Charlotte resemblance:
Us Weekly ran a report earlier this week about Charlotte and what her life at home with her two brothers Prince George and Prince Louis is like. Personality-wise, "Charlotte’s extremely confident and loves attention," a source told the outlet.
She sometimes will bicker with her older, six-year-old brother George, like most siblings do. “[It’s] usually over silly things like toys or what TV shows they want to watch,” Us' source said. “But most of the time they get on.”
The kids are pretty crafty and create a lot of things with their parents Kate and William: "They love playing together and being creative," the source said. "Painting, baking and building things are all activities they enjoy, and now that Louis’ a bit older [Louis is one now], he gets involved too."


{% extends "developers/base_impala.html" %} {% set pagetitle = _('Search Unavailable') %} {% block content %} {{ _("Search is temporarily unavailable. Please try again in a few " "minutes.") }} {% endblock %}
{{ _("Search is temporarily unavailable. Please try again in a few " "minutes.") }}


{% extends "content_template.html" %} {% block per_page_title %} {{ _('Trial mode') }} {% endblock %} {% block content_column_content %}
{{ _('When you set up a new service it will start in trial mode. This lets you try out Notification, with a few restrictions.') }}
{{ _('A service in trial mode can only:') }}
{{ _('To remove these restrictions, you can') }} {% if current_service and current_service.trial_mode %} contact us. {% else %} {{ _('send us a request to go live.') }} {% endif %}
{{ _('Before you can request to go live, you must:') }}
{{ _('When we receive your request we’ll get back to you within one working day.') }}
{% endblock %}


{% extends "layout.html" %} {% block page_title %} What do you want to do? {% endblock %} {% block content %} alpha What do you want to do? What do you want to do? Find a Local Land Charge (LLC) Add a new LLC Change a LLC Cancel or delete a LLC Continue {% endblock %}
alpha


I’m sitting here waiting for a download to complete listening to the music stream from Jem’s website, because i can’t wait to get the CD.
Jem first came to my attention whilst listening to the O.C. soundtrack (”Just a ride - Jem") many moons ago, gave her 5 stars in iTunes and kinda forgot all about her until i heard her debut single ("They - Jem") on Moyles’ show. And on the basis of hearing those two songs i bought the album, something i never really as it usually takes me a while to really get into an artist enough to buy the album.
Plus, it turns out she’s welsh, we’re great.
By James (February 17th, 2005)I often find myself wondering why i bother paying for webspace to host a blog when i don’t really use it, sure it kept me busy designing it but since then i’ve just gotten bored with it, kinda defines what im like really.
So, what have i been upto the last few weeks? I know you’re all dying to know, but it’s not all that interesting, since i work nights (7pm-6am mostly) i rarely get the time to go out and do anything, so this week all my days off have been filled with me watching smallville season 1 again.
I have decided to try and eat a bit more healthily and i need to start walking more, seeing as my job involves me sitting down all night drinking coffee, then i go home and watch smallville all day - which makes me into one big couch potato. I’ve started eating fruit instead of snacks from the vending machine, problem is that fruit never really satisfies me like a big chucky kit-kat does, ho hum.
By James (February 15th, 2005)Just found myself looking around blogger.com and realised that they’re owned by google, and poking about a bit more i found that you can actually buy google merchandise, who knew?
Which begs me to question, would you wear a google t-shirt, hat, hoodie or fleece?
By James (February 1st, 2005)While buying a few tracks off iTunes (Harry Nilsson - One and Josh Turner - You Don’t Mess Around With Jim), i’ve only just noticed that you can preview the songs, id always assumed that this a was a ‘missing’ feature seeing as there is no preview button. Oh well.
After spending quite a few weeks on this new design, only after putting it online do i realise that it doesn’t work at all in internet explorer, not that im too bothered but it’s just annoying. Plus all my negative margins get mucked up if i add any more links into the sidebar.
Im currently experimenting with parsing xml through php, which if used with a nifty firefox extension would give me a pretty cool links system based on what’s actually in my bookmarks.
By James (February 1st, 2005)I’ve just finished watching Unsafe, the latest episode of Smallville to air in the US, and i am so pleased to see Sarah Carter back as Alicia.
Im really enjoying this season of smallville, it’s not as freak-of-the-week as the earlier seasons but it’s not as heavily arced like last season, a happy medium i think.
The whole Lana thing is tedious now though, i have no problem in beleiving that clark is an alien from the planet krypton but the arc about Lana being a decendant of some witch is a bit to much. I do like Lois though.
By James (January 30th, 2005)


PDX Python Presentation Night
Jan 28, 2014
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