#include <quadrotor_decoupled_6d_rel_kinematics.h>
Public Member Functions | |
| std::unique_ptr< RelativeState < PositionVelocity, PositionVelocity > > | Evaluate (const PositionVelocity &tracker_x, const QuadrotorControl &tracker_u, const PositionVelocity &planner_x, const VectorXd &planner_u) const |
| QuadrotorControl | OptimalControl (const PositionVelocity &tracker_x, const PositionVelocity &planner_x, const RelativeState< PositionVelocity, PositionVelocity > &value_gradient, const ControlBound< QuadrotorControl > &tracker_u_bound, const ControlBound< VectorXd > &planner_u_bound) const |
| QuadrotorDecoupled6DRelKinematics () | |
| ~QuadrotorDecoupled6DRelKinematics () | |
| Public Member Functions inherited from fastrack::dynamics::RelativeDynamics< PositionVelocity, QuadrotorControl, PositionVelocity, VectorXd > | |
| virtual | ~RelativeDynamics () |
Additional Inherited Members | |
| Protected Member Functions inherited from fastrack::dynamics::RelativeDynamics< PositionVelocity, QuadrotorControl, PositionVelocity, VectorXd > | |
| RelativeDynamics () | |
Definition at line 67 of file quadrotor_decoupled_6d_rel_kinematics.h.
|
inline |
Definition at line 71 of file quadrotor_decoupled_6d_rel_kinematics.h.
|
inlineexplicit |
Definition at line 72 of file quadrotor_decoupled_6d_rel_kinematics.h.
|
inlinevirtual |
Implements fastrack::dynamics::RelativeDynamics< PositionVelocity, QuadrotorControl, PositionVelocity, VectorXd >.
Definition at line 79 of file quadrotor_decoupled_6d_rel_kinematics.h.
|
inlinevirtual |
Implements fastrack::dynamics::RelativeDynamics< PositionVelocity, QuadrotorControl, PositionVelocity, VectorXd >.
Definition at line 97 of file quadrotor_decoupled_6d_rel_kinematics.h.


{% extends "base.html" %} {% block title %}Hope 4 Hops | Beer Profiles{% endblock %} {% block body %}
Brewed By: {{beer.brewery.name.upper()}}
Style: {{beer.beer_type.upper()}}
Alcohol By Volume: {{'%0.2f'| format(beer.abv*100|float)}}%
Popularity: {{beer.average_popularity}}
Rarity: {{beer.rarity.upper()}}
| Store Name | Store Traffic | Delivery Day | Distance From User | Let's Go! | {% for item in distances %}
| {{item[1].name.upper()}} | {{item[1].average_traffic}} | {{beer.devlivery_day_of_the_week.upper()}} | {{'%0.2f'| format(item[2]|float)}} miles |
Tell us how you feel about this brew:
Map provided by Google


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{{!-- quick_search - Fast, client-side filtering. =========================================== The quick_search partial displays a search box for client-side filtering of bookmarks. --}}


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| Package | Description |
|---|---|
| org.apache.beam.runners.core |
Provides utilities for Beam runner authors.
|
| org.apache.beam.runners.core.triggers |
State machine implementations for triggers, called "triggers" because
they react to events.
|
| org.apache.beam.runners.direct |
Defines the
PipelineOptions.DirectRunner
which executes both Bounded and Unbounded Pipelines on the local machine. |
| org.apache.beam.runners.flink |
Internal implementation of the Beam runner for Apache Flink.
|
| org.apache.beam.runners.spark.aggregators |
Provides internal utilities for implementing Beam aggregators using Spark accumulators.
|
| Class and Description |
|---|
| ActiveWindowSet
Track which windows are active, and the state address window(s) under which their
state is stored.
|
| ActiveWindowSet.MergeCallback |
| AggregatorFactory
A factory for creating aggregators.
|
| BaseExecutionContext.CreateStepContextFunction
Factory method interface to create an execution context if none exists during
BaseExecutionContext.getOrCreateStepContext(String, CreateStepContextFunction) . |
| DoFnRunner
An wrapper interface that represents the execution of a
DoFn . |
| DoFnRunners.OutputManager
Information about how to create output receivers and output to them.
|
| ElementAndRestriction
A tuple of an element and a restriction applied to processing it with a
splittable
DoFn . |
| ElementAndRestrictionCoder
A
Coder for ElementAndRestriction . |
| ExecutionContext
Context for the current execution.
|
| ExecutionContext.StepContext
Per-step, per-key context used for retrieving state.
|
GroupAlsoByWindowsDoFn
OldDoFn that merges windows and groups elements in those windows, optionally
combining values. |
| KeyedWorkItem
Interface that contains all the timers and elements associated with a specific work item.
|
| KeyedWorkItemCoder
A
Coder for KeyedWorkItems . |
| OldDoFn |
| OldDoFn.Context
Deprecated.
Information accessible to all methods in this
OldDoFn . |
| OldDoFn.ProcessContext
Deprecated.
Information accessible when running
OldDoFn.processElement(org.apache.beam.runners.core.OldDoFn<InputT, OutputT>.ProcessContext) . |
| OldDoFn.RequiresWindowAccess
Deprecated.
Interface for signaling that a
OldDoFn needs to access the window the
element is being processed in, via OldDoFn.ProcessContext.window() . |
| OutputWindowedValue
An object that can output a value with all of its windowing information to the main output or
a side output.
|
| PeekingReiterator
A
Reiterator that supports one-element lookahead during iteration. |
| PerKeyCombineFnRunner
An interface that runs a
CombineFnBase.PerKeyCombineFn with unified APIs. |
| PushbackSideInputDoFnRunner
A
DoFnRunner that can refuse to process elements that are not ready, instead returning
them via the PushbackSideInputDoFnRunner.processElementInReadyWindows(WindowedValue) . |
| ReduceFn
Specification for processing to happen after elements have been grouped by key.
|
| ReduceFn.Context
Information accessible to all the processing methods in this
ReduceFn . |
| ReduceFn.OnMergeContext
Information accessible within
ReduceFn.onMerge(org.apache.beam.runners.core.ReduceFn<K, InputT, OutputT, W>.OnMergeContext) . |
| ReduceFn.OnTriggerContext
Information accessible within
ReduceFn.onTrigger(org.apache.beam.runners.core.ReduceFn<K, InputT, OutputT, W>.OnTriggerContext) . |
| ReduceFn.ProcessValueContext
Information accessible within
ReduceFn.processValue(org.apache.beam.runners.core.ReduceFn<K, InputT, OutputT, W>.ProcessValueContext) . |
| SplittableParDo.ProcessFn
The heart of splittable
DoFn execution: processes a single (element, restriction) pair
by creating a tracker for the restriction and checkpointing/resuming processing later if
necessary. |
SystemReduceFn
ReduceFn implementing the default reduction behaviors of GroupByKey . |
| UnboundedReadFromBoundedSource.BoundedToUnboundedSourceAdapter
A
BoundedSource to UnboundedSource adapter. |
| Class and Description |
|---|
| ActiveWindowSet
Track which windows are active, and the state address window(s) under which their
state is stored.
|
| Class and Description |
|---|
| AggregatorFactory
A factory for creating aggregators.
|
| ExecutionContext.StepContext
Per-step, per-key context used for retrieving state.
|
| Class and Description |
|---|
| OldDoFn.ProcessContext
Deprecated.
Information accessible when running
OldDoFn.processElement(org.apache.beam.runners.core.OldDoFn<InputT, OutputT>.ProcessContext) . |
| Class and Description |
|---|
| AggregatorFactory
A factory for creating aggregators.
|
| ExecutionContext.StepContext
Per-step, per-key context used for retrieving state.
|
Copyright © 2016–2017 The Apache Software Foundation. All rights reserved.


Class Period
Inheritance
System.Object
Period
Assembly: TimeAndDate.Services.dll
Syntax
public class Period : object
Constructors
|
Improve this Doc
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Period()
Declaration
Properties
|
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CalendarDays
Declaration
public int CalendarDays { get; set; }
Property Value
| Type |
Description |
| System.Int32 |
|
|
Improve this Doc
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EndDate
Declaration
public TADTime EndDate { get; set; }
Property Value
|
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Holidays
Declaration
public List<Holiday> Holidays { get; set; }
Property Value
|
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IncludedDays
Declaration
public int IncludedDays { get; set; }
Property Value
| Type |
Description |
| System.Int32 |
|
|
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IncludedOrExcluded
Declaration
public IncludeOrExcluded IncludedOrExcluded { get; set; }
Property Value
|
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SkippedDays
Declaration
public int SkippedDays { get; set; }
Property Value
| Type |
Description |
| System.Int32 |
|
|
Improve this Doc
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StartDate
Declaration
public TADTime StartDate { get; set; }
Property Value
|
Improve this Doc
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Weekdays
Declaration
public WeekdaysType Weekdays { get; set; }
Property Value
Operators
|
Improve this Doc
View Source
Explicit(XmlNode to Period)
Declaration
public static explicit operator Period(XmlNode node)
Parameters
| Type |
Name |
Description |
| XmlNode |
node |
|
Returns


Dax Digital Design is just me, Dax Borges. I started Dax Digital Design while studying at the University of Denver. Since graduating in 2008, I have worked with wonderful clients whose needs have ranged from simple icons to large scale data driven websites.
I've worked in many languages, including HTML, CSS, JS, MySQL, PHP, Ruby, Python, ActionScript and ColdFusion. I enjoy creating beautiful and maintainable code. I always have my eye out for the appropriate design pattern and my current favorite frameworks are Laravel and AngularJS.
I love clean typography, creating beautiful word marks and building intuitive UIs. I'm well versed in the Adobe Suite, with focus on Illustrator and Photoshop.


2 Samuel 16:14
And the king, and all the people that were with him, came weary, and refreshed themselves there.


--- layout: post title: LEGOs, Play-Doh, and Programming post_id: 70 categories: - essays and rants date: 2008-11-09 04:46:00.000000000 -07:00 author: Jamis permalink: 2008/11/9/legos-play-doh-and-programming.html summary: > Play-Doh and LEGO are compared and constrasted, and then put forward as a metaphor for comparing Ruby and Java. The reader is encouraged to embrace the strengths of each environment ---
This article is based on a talk I gave at the 2008 RubyConf in Orlando, Florida, entitled “Recovering from Enterprise: how to embrace Ruby’s idioms and say goodbye to bad habits”.
The other day I went to Target with my son. Like most kids, I think, he’s convinced that Target is a toy store, which just happens to sell towels and shoes and cleaning supplies, too, so in his eyes it’d be criminal to not walk through the bare handful of toy aisles.
Besides, the toy section is across from the electronics section, which all geeks know is where the real toys are.
So, we went to the toy section and started browsing. I’ve always loved LEGO sets, and it’s a good thing they’re so expensive or I’d come home with a new box of bricks every time. At the Target near our home, they have half of an entire aisle devoted to boxes and boxes of LEGO sets. Need a battle-axe-wielding LEGO dwarf figure? A LEGO shark? How about a giant LEGO skull, a la Indiana Jones? And who could pass a LEGO Star Wars’ Star Destroyer model without a wistful thought or two?
It struck me at that time, though, how incredibly specific so many of these pieces are. With all of those sets in your possession, you could build a secret agent headquarters with a boulder trap that crushes angry battle-axe-wielding dwarves as they drive by in Martian exploration buggies. Which themelves are adorned with flower beds and creeper vines. And you could do all that in under 10 LEGO bricks! (Or, maybe a few more than that.)
Did you know that LEGO currently produces over 900 distinct LEGO pieces, or “elements” as they call them? Over the course of their history, there have been almost 13,000 distinct elements created. Now, that number includes variations in color and material, but even if you exclude those permutations, you’re still left with a staggering 2,800 different elements in the LEGO line.
It’s interesting that LEGO tends to encourage the use of specific pieces, rather than letting you build those pieces from more fundamental parts. It means that in order to master LEGO brick building, you have to know all of the pieces available to you, and have a good intuitive feel for how and when they should be used. That’s…a lot of information to keep tabs on. Myself, I just keep to the standard rectangular blocks and plug an exotic or two on as an afterthought when I see one that looks cool.
Also, if you’ve built up a model, and decide later that you want to change or extend some part of the model, you’ll often have to dismantle part (or all!) of it in order to do so. Kind of a pain.
Regardless, I still love building with LEGO bricks, and I suspect I always will.
Now, my son being all of 6 years old, his attention span requires us to spend no more than a few minutes in any one toy aisle. So, long before I was ready to tear my eyes away from the LEGO sets, we found ourselves in the next aisle over. This was a much more colorful aisle, with bright pastels coloring various pre-school toys. My son, though, has nothing against pre-school toys, and was more than willing to drag me through them.
My eyes caught on the Play-Doh section.
The Play-Doh section at this Target is small, maybe 8 different hangers and a few square feet of shelf-space. You can get Play-Doh in as many as 50 different colors, but regardless of color, it’s all still the same thing: a bucket of malleable dough that you can pound, press, pinch, roll, and sculpt. (And rub into the carpet. And hair. And clothes. But we won’t get into that.)
Honestly, Play-Doh has a bad rap as a pre-schooler toy. It’s remarkably fun to play with. You can do all kinds of things with Play-Doh that you just can’t do with LEGO bricks. For example, the other day I built an arch out of cubes of Play-Doh that were held together only by friction. (You may not be impressed, but my 6-year-old was.)
The best part is that it doesn’t require so much memorization to become proficient in Play-Doh, though it might require more of an artistic streak than LEGO bricks do. Since I’m more engineer than artist, my Play-Doh creations tend to come out blocky and functional, rather than elegant and designed, but then, so do my LEGO creations.
Also, where LEGO models require significant work to alter or extend, Play-Doh models are dead-simple. If you want to add something to the base of your model, just graft more Play-Doh onto it. Want to change the shape of the keystone of your arch? Just pinch and mold in place. Simple!
Interestingly, I’ve found that while you can’t build with LEGO bricks using Play-Doh construction techniques, you can build with Play-Doh using LEGO construction techniques. Just build bricks out of Play-Doh. It’s unwiedly and impractical, but it can be done. The real question is: why would you want to? It’s pretty obvious that to build with Play-Doh, you should just embrace Play-Doh’s own strengths and run with it.
As obvious as that may seem, the lesson didn’t click for me for a long time. It’s not that I went about building Indiana Jones sets out of Play-Doh, one brick at a time. Rather, I didn’t realize that the same lesson applied to programming languages.
Consider Java. Most would consider it the poster child of “enterprise” environments (though .NET is giving it a run for its money). And would you believe, Java and LEGO bricks have several things in common?
As of Java 1.6, there are well over 11,000 different classes and interfaces available to programmers in the standard library. (That’s not even counting the inner and anonymous classes that are usually not publicly documented.) Eleven. Thousand. Classes.
This is readily apparent when you consider the set of collection implementations that Java ships with.
Yes, that is FORTY-SIX different interfaces and implementations related to collections. Now, just like LEGO construction, having this volume of distinct elements on hand affects how you architect things. Writing software becomes more of a smorgasbord, where you pick and choose the specialized bricks you need, fitting them together just so. It also means that, in order to master Java, you need to have that intuitive grasp of how and when to use those thousands of classes. When do you use a HashSet versus a TreeSet? When would you use an ArrayDeque, and when would you want to subclass an AbstractQueue? It’s all part of the job.
Also, IDE’s are popular with Java in part because of the pain of refactoring. If you want to extend or modify a Java application, it can involve (like LEGO models) a lot of dismantling and reassembling.
But if Java is the LEGO of programming languages, then it could be argued that Ruby is the Play-Doh. Just as Play-Doh has been typically considered a pre-school toy, so Ruby has had a bad rap as a “toy” language, not fit for the “real world”. Also, compared to Java’s library of 11,000 classes, Ruby’s meager 1,400 classes (which number does include internal and anonymous ones, but not modules) seems paltry. And collections! Look what Ruby has to offer:
Modules:
Classes:
Just 6 options, to Java’s 46. What if you need a queue? Well, Ruby’s Array class has a queue-like interface; you could just use that. What about a sorted map? In that case, you might need to make do with a sorted set, or you could write your own, but it’s not hard. Most data structures are not rocket science, and for those that are, you can bet someone else has implemented it already.
But when you need to extend or modify your application, Ruby is a dream. Like Play-Doh, you can often just “pinch and mold” in place, grafting new code on or pulling old code out.
Ruby’s philosophy is like that of Play-Doh’s: provide a basic set of tools and make it relatively simple to build something complex with them. The very Ruby language itself is designed for this: closures, super-simple introspection of objects, runtime modification of existing objects, and the use of modules for extending classes and objects all tend to result in an environment that is simple, malleable, and extensible.
And just as you cannot use Play-Doh construction techniques with LEGO bricks, you also really cannot use Ruby programming techniques with Java. Using closures for delayed execution, or iteration, is tricky (at best) in Java, when it’s possible at all. Extending objects at runtime typically requires bytecode modification. And Ruby’s use of modules to extend classes and objects, while similar to both inheritance and interfaces, is slightly different (and arguably more powerful) than either.
You can write Ruby programs using Java programming techniques, but just as using LEGO techniques with Play-Doh is unwieldy and overcomplicated, so is mimicking Java in Ruby.
This is the lesson that I was slow to learn.
Consider exhibit A, from my Copland library.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
# copland/configuration/loader.rb (collapsed) module Copland module Configuration class Loader attr_reader :search_paths attr_reader :loaders def initialize( search_paths=[] ) def add_search_path( *paths ) def add_loader( loader ) def load( options={} ) def load_path( path, options ) def use_library( name ) end end end |
Copland was my first stab at a dependency injection (DI) framework, and is more-or-less a feature-for-feature port of the HiveMind project in Java. (Ironically, it was the subject of my first presentation at a Ruby conference, in 2004!)
It was designed to automatically scan directories in the load path for YAML configuration files (I’ll mention those shortly), and load them up and parse them. The thing is, I imagined a case where someone might want to use XML instead of YAML. I couldn’t just leave these folks behind! So I made the whole configuration loading framework extendible. Want XML config files? Fine! Just implement an XML parser system and register it with the configuration loader framework, and you’re good to go!
That’s just wrong on so many levels. Always, always, always build just what you need, and only when you need it. You’re in Ruby, the Play-Doh of programming languages, and the cost of adding features later is really, really low. Remember YAGNI! Obviously, this principle holds in Java, too, but it really seems like the opposite philosophy has become the standard among many Java projects. It’s too bad, because it has contributed to a bad reputation that Java probably doesn’t entirely deserve.
Here’s a classic Java pattern that just really doesn’t translate to Ruby:
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 |
# copland/class-factory.rb module Copland class ClassFactory include Singleton def initialize @pools, @constructors = Hash.new, Hash.new end def create_pool( name, &block ) block ||= proc { |k,*args| k.new( *args ) } @pools[ name ] = Hash.new @constructors[ name ] = block end def get_pool( name ) pool = @pools[ name ] or raise NoSuchPoolException, name return pool end def register( pool_name, name, klass ) pool = get_pool( pool_name ) pool[ name ] = klass end def get( pool_name, name, *args ) pool = get_pool( pool_name ) klass = pool[ name ] raise NoSuchRegisteredClassException, "#{pool_name}:#{name}" unless klass constructor = @constructors[ pool_name ] return constructor.call( klass, *args ) end end end |
This is an implementation of a class factory. In Ruby. The HiveMind project had a class factory, so the Copland project needed one, too!
But you know, class factories are absolutely pointless in Ruby. There are plenty of reasons for these in Java, but they just aren’t necessary in Ruby. Want a namespace? Declare the class in a module. Want the class to exist in multiple namespaces? Use constant assignment within whatever modules you desire. Need a dynamic lookup? Try #const_get. In the very worst case, just use a Hash if you need to map arbitrary strings to classes.
1 2 3 4 5 6 7 8 9 10 11 12 13 |
module A class B end end # method #1, use const_get to dynamically look up classes name = "B" klass = A.const_get(name) object = klass.new # method #2, use a hash to map arbitrary strings to classes map = { "bimpl" => A::B } map["bimpl"].new |
Seriously. You don’t need explicit class factories in Ruby, because anything can be a class factory, implicitly.
I’ll mention one more painful Javaism that I ported to Copland. It’s so painful that I won’t even bother pasting it here—if you’re following along, look at examples/solitaire-cipher/lib/package.yml in the copland distribution.
If you do, what you’ll see are 106 lines of YAML describing how different Ruby objects in a simple, 250-line program should be initialized and connected. Yes. 106 lines of YAML. For 250 lines of Ruby.
Now, don’t get me wrong. YAML can be great for configuration. Rails, for instance, uses it for database connection information. The problem here, in Copland, was that I was using a static configuration for what would be better served with a block of code. Ruby reads elegantly; a YAML configuration file does not.
Fortunately, those wiser than myself showed me the way.
I still remember Rich Kilmer, sitting in the front row in the October 2004 RubyConf. As I wrapped up my presentation on Copland and dependency injection, I asked if there were any questions.
Rich raised his hand. “Why didn’t you just use Ruby?”
I was confused by his question, and he had to explain. Why did I use YAML instead of just doing the configuration in Ruby code?
I think I mumbled something like “that would be a neat idea”. To me, it was a novel concept. I’d never heard of it before. You’d never see a Java program that was configured by writing Java code. That screams “hard coding”! But Ruby, you see, is different.
Ruby lets you write these beautiful little mini-languages. You’ll hear them called “Domain Specific Languages”, or DSL’s. They are subsets of the Ruby language, and you’ll find them in Rake, Capistrano, rspec, shoulda, and more. They’re really everywhere in Ruby, to varying degrees.
Although Rich tried to open my eyes, I think I would have continued to try and push Copland if it weren’t for Jim Weirich. Jim took the idea of a Ruby-ish DSL for dependency injection and made something concrete of it. A few days after the conference he forwarded me a draft of an article he was writing, in which he described dependency injection and gave a very simple (and very elegant) implementation of a DI framework in Ruby. Instead of static configuration, he’d written a basic DSL for declaring how the dependencies related to each other.
It was a moment of epiphany for me. Suddenly, I got it. I understood what DSL’s were about. I asked Jim for permission to take his simple implemention and build upon it.
The result was Needle.
Now, I’m much prouder of Needle than of Copland, because it is much closer to Ruby’s philosophy than Java. There are some pretty cool designs in there, too, though I use the term “cool” here to mean “neat without having any real practical application.”
Needle, though better, was still far from the mark.
As an example of why it misses the mark, consider Needle’s “pipeline” concept. Conceptually, it allowed you to specify a sequence of post-processors that operated on an object, allowing you to wrap code around it and mimicking (among other things) AOP-like operations. It also let me (as the author of the library) easily implement things like deferred instantiation, singleton services, and the like.
For example, suppose you wanted to declare a “deferred singleton” service, that logged all accesses to one of the methods. Underneath, Needle will create a pipeline of processors that operate on the service, returning a proxy object. The first time the proxy is accessed, it will check to see if the object has been instantiated yet. If it hasn’t, it’ll instantiate it (and cache it). The instantiation, though, actually just hands control to the next element in the pipeline, which in this case checks to see that the “singleton” constraint is enforced (e.g., all requests for this service return the same object, rather than instantiating a new object). The next pipeline element in the chain will wrap the interceptor code around the method in question, and yet another pipeline element would perform the actual object instantiation.
Pipelines really were pretty slick in Needle.
The problem, though, is that instead of leaving them as an implementation detail, I advertised them as one of Needle’s features. “Implement your own service models!” I cried. But, how often, really, is that likely to happen? Instead of exposing only the bare minimum of Needle’s API, I exposed as much of it as I could, because I could.
That’s a bad idea. Expose only what you need. The rest can be there, available, but not formally exposed. Only when (and if) you discover a need to expose more, should you expose more. This helps for several reasons.
Now, I’ve since come to my senses, but at one time I was completely head-over-heels in love with dependency injection. Like any schoolboy crush, it embarrasses me now to think about it, but there’s no denying it. The proof is everywhere in my project history.
Net::SSH, in particular.
At the time, I was looking for a good demonstration of the flexibility and power of dependency injection, and since Net::SSH was another of my pet projects at the time, it seemed like the perfect candidate.
I was still stuck in the “just in case” mindset, though, and Net::SSH 1.x reflected that. Badly. For instance, I isolated all the OpenSSL crypto interfaces into their own module, because “what if someone wanted to plug in a different crypto lib?” Nevermind that there was no other crypto lib for Ruby (and still isn’t, 4 years later). But WHAT IF?!?
Now, separation of concerns and modularity are good things, when used in moderation. But like any design pattern, it becomes evil when taken to extremes. Too much modularity and you wind up with component soup (and I hope you’re hungry, because you’re going to have a lot of it). With lots of tiny components, the interactions between those components can become difficult to test.
It also fuzzes the line between the public, documented API and the internal, private API. When you have two large components, it is very easy to say “A is public, and B is private”, but when you have two hundred components, where do you draw the line? It’s far too easy to let the “public” boundary meander a bit further into “private” territory than it should.
Even worse, when I added dependency injection to the mix, it became very, very difficult to follow the the flow of the program, and to understand the dependencies. Pull up Net::SSH 1.1.4, for instance, and find net/ssh.rb. Just try and figure out how a connection session is instantiated. It’s a mess. Unless you’re familiar with Needle, it’ll probably take you a long time to discover that the actual services are configured in the various services.rb files, but even after you figure that out, you still have to figure out how the different services interrelate. It’s a mess.
But, isn’t that the opposite of what DI is supposed to do? Isn’t DI supposed to improve the maintainability and testability of your code? Yeah. The problem, though, was three-fold.
First, Net::SSH, though complex in its way, was not really complex enough to need a dependency injection framework. DI itself adds complexity, and a framework for doing dependency injection adds even more, so before you go that route you need to be very sure that the trade-off in complexity is worth it. If your project is too small, you’ll actually increase the complexity of your project by adding a framework for doing DI.
Secondly, I was using a DI framework at a level that was really too granular. I was using the framework to wire together everything. No component was too small! No object too insignificant! I was on the dependency injection horse, and riding it for all it was worth. If I’d taken the time to really understand the pattern, though, I would have learned that though the pattern itself may be applied at the micro level, using a framework to do so is like nuking a mosquito—it works, but it leaves a mess behind.
Which leads to the last problem with Net::SSH’s use of Needle: it is really only appropriate for wiring together components of an application. Very, very few (Ruby) libraries will ever be complex enough, in themselves, to justify adding a dependency injection framework to them. Rather, let the application wire the libraries together as (and when) it needs to. Any more granular than that, and you’ll run into the same quagmire I did, I promise you.
So, is there no room for DI in Ruby? There definitely is. I use DI nearly every day in Ruby, but I do not use a DI framework. Ruby itself has sufficient power to represent any day-to-day DI idioms you need. Consider this one:
1 2 3 4 5 6 7 8 |
class A end class B def new_client(with=A) with.new end end |
Here, B declares a factory method for generating new client objects. Because Ruby lets you declare default values for method arguments, you can let the default client implementation be A, which is the common case. But for testing, you can easily inject a mock into that method by passing an explicit parameter.
For cases where that doesn’t work, you can use a second factory method:
1 2 3 4 5 6 7 8 9 10 11 12 |
class A end class B def new_client client.new end def client A end end |
Then, in your tests, you can subclass B, overriding the client
method to return your mock client implementation. It’s dependency injection, Jim, but probably not as you’ve known it.
Hashes, too, are your friend. You can allow optional arguments via hashes to specify implementation classes, defaulting to the standard implementation classes but allowing clients to inject their own implementations where needed:
1 2 3 4 5 6 7 8 9 10 11 12 |
class A end class B def initialize(options={}) @client_impl = options[:client] || A end def new_client @client_impl.new end end |
“Loose coupling” and “high cohesion” are terms you’ll hear bandied about in defense of dependency injection, and those traits are certainly desirable. But strike a balance with pragmatism. There will be some who call me heretic for saying this, but don’t be afraid to introduce tighter coupling when it makes sense. Loose coupling everywhere is what I had with Net::SSH 1.x, and the result was nearly unmaintainable.
Be wise. You’re competent. Trust your instincts.
If you read nothing else from this article, take to heart these bite-sized bullet-points:
Learning to program is a journey, and I’m still learning, myself. I’m not perfect at applying the rules above, but I’ve found that when I do, I’m much happier. I think you will be, too.


This record stores a PivotTable name.
Record Data — BIFF8
|
Offset |
Name |
Size |
Contents |
|
4 |
grbit |
2 |
=02h, fErrName , the name is invalid and should be displayed and evaluated as #NAME . |
|
6 |
ifdb |
2 |
Field to aggregate in calculated field formulas. |
|
8 |
ifn |
2 |
Function to use for aggregation in calculated field formulas. |
|
10 |
csxpair |
2 |
Number of SXPAIR records to follow this record. |


Reports invalid definitions and usages of classes created with dataclasses or attr modules.
dataclasses
attr
Example:
import dataclasses @dataclasses.dataclass class FullName: first: str middle: str = "" last: str


| I l@ve RuBoard |
11.5 Other Client-Side ToolsSo far in this chapter, we have focused on Python's FTP and email processing tools and have met a handful of client-side scripting modules along the way: ftplib, poplib, smtplib, mhlib, mimetools, urllib, rfc822, and so on. This set is representative of Python's library tools for transferring and processing information over the Internet, but it's not at all complete. A more or less comprehensive list of Python's Internet-related modules appears at the start of the previous chapter. Among other things, Python also includes client-side support libraries for Internet news, Telnet, HTTP, and other standard protocols. 11.5.1 NNTP: Accessing NewsgroupsPython's nntplib module supports the client-side interface to NNTP -- the Network News Transfer Protocol -- which is used for reading and posting articles to Usenet newsgroups in the Internet. Like other protocols, NNTP runs on top of sockets and merely defines a standard message protocol; like other modules, nntplib hides most of the protocol details and presents an object-based interface to Python scripts. We won't get into protocol details here, but in brief, NNTP servers store a range of articles on the server machine, usually in a flat-file database. If you have the domain or IP name of a server machine that runs an NNTP server program listening on the NNTP port, you can write scripts that fetch or post articles from any machine that has Python and an Internet connection. For instance, the script in Example 11-24 by default fetches and displays the last 10 articles from Python's Internet news group, comp.lang.python, from the news.rmi.net NNTP server at my ISP. Example 11-24. PP2E\Internet\Other\readnews.py############################################### # fetch and print usenet newsgroup postings # from comp.lang.python via the nntplib module # which really runs on top of sockets; nntplib # also supports posting new messages, etc.; # note: posts not deleted after they are read; ############################################### listonly = 0 showhdrs = ['From', 'Subject', 'Date', 'Newsgroups', 'Lines'] try: import sys servername, groupname, showcount = sys.argv[1:] showcount = int(showcount) except: servername = 'news.rmi.net' groupname = 'comp.lang.python' # cmd line args or defaults showcount = 10 # show last showcount posts # connect to nntp server print 'Connecting to', servername, 'for', groupname from nntplib import NNTP connection = NNTP(servername) (reply, count, first, last, name) = connection.group(groupname) print '%s has %s articles: %s-%s' % (name, count, first, last) # get request headers only fetchfrom = str(int(last) - (showcount-1)) (reply, subjects) = connection.xhdr('subject', (fetchfrom + '-' + last)) # show headers, get message hdr+body for (id, subj) in subjects: # [-showcount:] if fetch all hdrs print 'Article %s [%s]' % (id, subj) if not listonly and raw_input('=> Display?') in ['y', 'Y']: reply, num, tid, list = connection.head(id) for line in list: for prefix in showhdrs: if line[:len(prefix)] == prefix: print line[:80]; break if raw_input('=> Show body?') in ['y', 'Y']: reply, num, tid, list = connection.body(id) for line in list: print line[:80] print print connection.quit() As for FTP and email tools, the script creates an NNTP object and calls its methods to fetch newsgroup information and articles' header and body text. The xhdr method, for example, loads selected headers from a range of messages. When run, this program connects to the server and displays each article's subject line, pausing to ask whether it should fetch and show the article's header information lines (headers listed in variable showhdrs only) and body text: C:\...\PP2E\Internet\Other>python readnews.py Connecting to news.rmi.net for comp.lang.python comp.lang.python has 3376 articles: 30054-33447 Article 33438 [Embedding? file_input and eval_input] => Display? Article 33439 [Embedding? file_input and eval_input] => Display?y From: James Spears<EMAIL_ADDRESS>Newsgroups: comp.lang.python Subject: Embedding? file_input and eval_input Date: Fri, 11 Aug 2000 10:55:39 -0700 Lines: 34 => Show body? Article 33440 [Embedding? file_input and eval_input] => Display? Article 33441 [Embedding? file_input and eval_input] => Display? Article 33442 [Embedding? file_input and eval_input] => Display? Article 33443 [Re: PYHTONPATH] => Display?y Subject: Re: PYHTONPATH Lines: 13 From: sp00fd<EMAIL_ADDRESS>Newsgroups: comp.lang.python Date: Fri, 11 Aug 2000 11:06:23 -0700 => Show body?y Is this not what you were looking for? Add to cgi script: import sys sys.path.insert(0, "/path/to/dir") import yourmodule ----------------------------------------------------------- Got questions? Get answers over the phone at Keen.com. Up to 100 minutes free! http://www.keen.com Article 33444 [Loading new code...] => Display? Article 33445 [Re: PYHTONPATH] => Display? Article 33446 [Re: Compile snags on AIX & IRIX] => Display? Article 33447 [RE: string.replace() can't replace newline characters???] => Display? 205 GoodBye We can also pass this script an explicit server name, newsgroup, and display count on the command line to apply it in different ways. Here is this Python script checking the last few messages in Perl and Linux newsgroups: C:\...\PP2E\Internet\Other>python readnews.py news.rmi.net comp.lang.perl.misc 5 Connecting to news.rmi.net for comp.lang.perl.misc comp.lang.perl.misc has 5839 articles: 75543-81512 Article 81508 [Re: Simple Argument Passing Question] => Display? Article 81509 [Re: How to Access a hash value?] => Display? Article 81510 [Re: London =?iso-8859-1?Q?=A330-35K?= Perl Programmers Required] => Display? Article 81511 [Re: ODBC question] => Display? Article 81512 [Re: ODBC question] => Display? 205 GoodBye C:\...\PP2E\Internet\Other>python readnews.py news.rmi.net comp.os.linux 4 Connecting to news.rmi.net for comp.os.linux comp.os.linux has 526 articles: 9015-9606 Article 9603 [Re: Simple question about CD-Writing for Linux] => Display? Article 9604 [Re: How to start the ftp?] => Display? Article 9605 [Re: large file support] => Display? Article 9606 [Re: large file support] => Display?y From<EMAIL_ADDRESS>(Andreas Schweitzer) Newsgroups: comp.os.linux.questions,comp.os.linux.admin,comp.os.linux Subject: Re: large file support Date: 11 Aug 2000 18:32:12 GMT Lines: 19 => Show body?n 205 GoodBye With a little more work, we could turn this script into a full-blown news interface. For instance, new articles could be posted from within a Python script with code of this form (assuming the local file already contains proper NNTP header lines): # to post, say this (but only if you really want to post!) connection = NNTP(servername) localfile = open('filename') # file has proper headers connection.post(localfile) # send text to newsgroup connection.quit() We might also add a Tkinter-based GUI frontend to this script to make it more usable, but we'll leave such an extension on the suggested exercise heap (see also the PyMailGui interface's suggested extensions in the previous section). 11.5.2 HTTP: Accessing Web SitesPython's standard library (that is, modules that are installed with the interpreter) also includes client-side support for HTTP -- the Hypertext Transfer Protocol -- a message structure and port standard used to transfer information on the World Wide Web. In short, this is the protocol that your web browser (e.g., Internet Explorer, Netscape) uses to fetch web pages and run applications on remote servers as you surf the Net. At the bottom, it's just bytes sent over port 80. To really understand HTTP-style transfers, you need to know some of the server-side scripting topics covered in the next three chapters (e.g., script invocations and Internet address schemes), so this section may be less useful to readers with no such background. Luckily, though, the basic HTTP interfaces in Python are simple enough for a cursory understanding even at this point in the book, so let's take a brief look here. Python's standard httplib module automates much of the protocol defined by HTTP and allows scripts to fetch web pages much like web browsers. For instance, the script in Example 11-25 can be used to grab any file from any server machine running an HTTP web server program. As usual, the file (and descriptive header lines) is ultimately transferred over a standard socket port, but most of the complexity is hidden by the httplib module. Example 11-25. PP2E\Internet\Other\http-getfile.py####################################################################### # fetch a file from an http (web) server over sockets via httplib; # the filename param may have a full directory path, and may name a cgi # script with query parameters on the end to invoke a remote program; # fetched file data or remote program output could be saved to a local # file to mimic ftp, or parsed with string.find or the htmllib module; ####################################################################### import sys, httplib showlines = 6 try: servername, filename = sys.argv[1:] # cmdline args? except: servername, filename = 'starship.python.net', '/index.html' print servername, filename server = httplib.HTTP(servername) # connect to http site/server server.putrequest('GET', filename) # send request and headers server.putheader('Accept', 'text/html') # POST requests work here too server.endheaders() # as do cgi script file names errcode, errmsh, replyheader = server.getreply() # read reply info headers if errcode != 200: # 200 means success print 'Error sending request', errcode else: file = server.getfile() # file obj for data received data = file.readlines() file.close() # show lines with eoln at end for line in data[:showlines]: print line, # to save, write data to file Desired server names and filenames can be passed on the command line to override hardcoded defaults in the script. You need to also know something of the HTTP protocol to make the most sense of this code, but it's fairly straightforward to decipher. When run on the client, this script makes a HTTP object to connect to the server, sends it a GET request along with acceptable reply types, and then reads the server's reply. Much like raw email message text, the HTTP server's reply usually begins with a set of descriptive header lines, followed by the contents of the requested file. The HTTP object's getfile method gives us a file object from which we can read the downloaded data. Let's fetch a few files with this script. Like all Python client-side scripts, this one works on any machine with Python and an Internet connection (here it runs on a Windows client). Assuming that all goes well, the first few lines of the downloaded file are printed; in a more realistic application, the text we fetch would probably be saved to a local file, parsed with Python's htmllib module, and so on. Without arguments, the script simply fetches the HTML index page at http://starship.python.org: C:\...\PP2E\Internet\Other>python http-getfile.py starship.python.net /index.html   <META NAME="GENERATOR" CONTENT="HTMLgen"> <TITLE>Starship Python</TITLE>


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a Button
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Primary
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# extends 'base_doc.html' # block content_doc
From the root directory you can excecute the run.py
script
with one or more of these arguments:
| Flag | Description | |
|---|---|---|
-w |
--watch |
Watch files for changes when running the development web server |
-c |
--clean |
Recompiles files when running the development web server |
-C |
--clean-all |
Cleans all the pip, Node & Bower related tools / libraries and updates them to their latest versions |
-m |
--minify |
Compiles files into minified version before deploying |
-s |
--start |
Starts the dev_appserver.py with datastore and blobstore paths |
-o |
--host |
The host to start the dev_appserver.py |
-p |
--port |
The port to start the dev_appserver.py |
-f |
--flush |
Clears the datastore, blobstore, etc |
--appserver-args ... |
Used with -s , all following args are passed to dev_appserver.py |
|
| gae-init-babel only | ||
-u |
--pybabel-update |
Update existing message catalogs from messages.pot (pybabel update.. ) |
-l |
--pybabel-init |
Create new message catalogs from messages.pot (pybabel init.. ) |
-i |
--pybabel-init-missing |
Create new message catalogs from messages.pot that are defined in config.py and still not present (pybabel init.. ) |
-b |
--pybabel-compile |
Compile message catalogs to MO files (pybabel compile.. ) |


[viewBag] title = "Department of Chemistry" ==
|
111700, Republik of Uzbekistan, Tashkent region, Chirchik city, Amir Temur st 104. Phon:(0370) 712-4541, Fax:712-45-41<EMAIL_ADDRESS><EMAIL_ADDRESS>|
Bekchanov Davron Zhumazarovich
|
In accordance with decision No. 1 of the Council of the Chirchik State Pedagogical Institute of August 27, 2019, the Department of Chemistry began to function at the Department of Natural Sciences, having separated from the Department of "Natural Sciences". The Faculty of Chemistry is part of the Faculty of Natural Sciences and prepares personnel in the following areas:
Readable disciplines:
1. General chemistry
2. Inorganic chemistry
3. History of chemistry
4. Experimental methods
5. Inorganic chemistry
6. Analytical chemistry
7. Organic chemistry
8. Chemistry of complex compounds
9. Methods of conducting experiments
10. Computer chemistry
11. Chemistry of medicinal plants
12. Methods of teaching chemistry
13. Physical chemistry
14. Polymer chemistry
15. Chemical technology
16. Modern technologies in chemistry education
17. Chemistry
18. Ecological chemistry
A unique multidisciplinary team was formed at the department, in which specialists, scientists and practitioners of various scientific specialties work. In addition to teaching relevant subjects, teachers of the department carry out research work in various areas.
Leading teachers of the department:
In addition to the main teachers of the department, specialists from research institutes of the Academy of Sciences of the Republic of Uzbekistan and teachers of NUUz were involved in the training.
At the department there are two modernly equipped laboratory rooms where students conduct laboratory work, the rooms are equipped with the necessary equipment and reagents.
Young researchers of the department carry out research work on obtaining polymer sorbents based on local raw materials and the study of their physico-chemical properties.
To improve the educational process, teachers of the department use modern teaching methods, multimedia tools and information and communication technologies.
Students conduct practical training at the Institute of Plant Chemistry and Bioorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan, and in secondary schools of the Tashkent region.
The department collaborates with the Institute of Plant Chemistry, the Institute of Bioorganic Chemistry, the Institute of Chemistry and Physics of Polymers, the Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan, Maxam-Chirchik JSC, Mirzo Ulugbek National University of Uzbekistan and other institutions.
International cooperation: today the department team collaborates with foreign universities and institutes. In particular, it collaborates with scientists and researchers from leading higher educational institutions, such as the Russian State Pedagogical University named after A.I. Herzen, South Kazakhstan State University, Mukhtar Avezov and Kiev National University of Ukraine.
Teachers of the department regularly take advanced training courses at specialized universities of the country, participate in interregional and international seminars and conferences.
We invite young people who want to receive a quality education and master fundamental knowledge in the field of natural sciences to train.
List of directions and training levels
Bachelor
|
The code |
Direction |
Training Profiles |
|
5110300 |
Chemistry teaching methodology Degree: Bachelor |
Duration of study: 4 years; Language of instruction: Uzbek, Russian |
|
5110300 |
Chemistry teaching methodology (evening) Degree: Bachelor |
Duration of study: 4,5 years; Language of instruction: Uzbek |
Master
|
The code |
Direction |
Training Profiles |
|
5А110301 |
Methods of teaching exact and natural sciences (Chemistry) Degree: Master |
Duration of study: 2 years; Language of instruction: Uzbek, Russian |
Doctoral studies
|
The code |
Specialty |
Time and language of instruction |
|
02.00.06 |
High molecular weight compounds Degree: Ph.D. in Chemistry |
Training time: 3 years; Language of instruction: Uzbek |
|
02.00.03 |
Organic chemistry Degree: Ph.D. in Chemistry |
Training time: 3 years; Language of instruction: Uzbek |
Teaching Staff
|
Bekchanov Davron |
Doctor of chemical sciences |
Head of Deportment |
|
Eshchanov Ruzimbay |
Doctor of biological sciences |
Professor |
|
Ziyadullaev Odil |
Doctor of chemical sciences |
Associate Professor |
|
Rakhimov Takhir |
Doctor of chemical sciences |
Associate Professor |
|
Mukhamediev Mukhtarjan |
Doctor of chemical sciences |
Professor |
|
Eshimbetov Alisher |
PhD in chemistry |
Associate Professor |
|
Khandamov Davron |
Doctor of chemical sciences |
Professor |
|
Yakubov Yuldosh |
PhD in chemistry |
Associate Professor |
|
Batirov Ruziali |
PhD in chemistry |
Associate Professor |
|
Eshmetov Rasulbek |
PhD in chemistry |
Associate Professor |
|
Menglieav Alisher |
PhD in chemistry |
Associate Professor |
|
Tursunmuratov Obid |
|
Teacher |
|
Buriev Farkhod |
|
Teacher |
|
Shauzakova Dilbar |
|
Senior Lecturer |
|
Kutlimuratov Nurbek |
|
Senior Lecturer |
|
Tirkasheva Sarvinoz |
|
Teacher |
|
Akhmedova Nargiza |
|
Senior Lecturer |
|
Yuldasheva Sevara |
|
Teacher |
|
Niyozov Khabibulla |
|
Teacher |
|
Abulkasimov Akmal |
|
Teacher |
|
Juraev Murod |
|
Teacher |


Augmented reality demo
Demo with QR code as a target:
Image demo
Video demo
3d animation demo
Demo with image detection


Setting the origin will move the origin point of the model.


Add structured logging for cost calculation
Interpolate cost on uneven time step
Implement more efficient cost calculation
Implement regression test for cost bug
Fix cost propagation bug


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For catool application, when user provides the /version or /ver option, the program should print out the version information on the screen. Now let's see how we can implement such requirement by using ACF.
|
[ OptionContract( Argument="/version;/ver", Description="Display the version information", Type=ContractType.Exact) ] public class DisplayVersionContract : OptionContractBase { } |
|
public override void Execute( ConsoleApplicationBase consoleApplication, IList<ArgumentInfo> args) { Console.WriteLine(Assembly .GetEntryAssembly() .GetName() .Version .ToString()); } |
|
using System; using System.Collections.Generic; using System.Reflection; using AdaptiveConsole;
namespace Catool.Contracts { [ OptionContract( Argument="/version;/ver", Description="Display the version information", Type=ContractType.Exact) ] public class DisplayVersionContract : OptionContractBase { public override void Execute( ConsoleApplicationBase consoleApplication, IList<ArgumentInfo> args) { Console.WriteLine(Assembly .GetEntryAssembly() .GetName() .Version .ToString()); } } } |
We have implemented the functionality of displaying version information just within 7 steps. After following the steps in the next chapters, you can image how easy it is to build a console application with ACF. You don't need to write a single character in your code to parse the command line arguments.


About Us
Our Team
Ashish Kumar Sharma
1SI15IS070
INFORMATION SCIENCE AND ENGINEERING
Namratha Shah
1SI15IS069
INFORMATION SCIENCE AND ENGINEERING
Pradhyumna K R
1SI15IS066
INFORMATION SCIENCE AND ENGINEERING


class SycLink::Link
Creates a link with url, name, description and tag
Creates a link with url, name, description and tag
Constants
- ATTRS
Attributes that are accessible
Public Class Methods
Create a new link with url and params. If params are not provided defaults are used for name the url is used, description is empty and tag is set to 'untagged'
Usage
¶ ↑
Link.new("http://example.com", name: "example", description: "For testing purposes", tag: "Test,Example")
Params
¶ ↑
- url
-
the URL of the link
- name
-
the name of the link. If not given the URL is used
- description
-
the description of the link (optional)
- tag
-
if not given it is set to 'untagged'
# File lib/syclink/link.rb, line 34 def initialize(url, params = {}) @url = url params = defaults(url).merge(select_defined(params)) @name = params[:name] @description = params[:description] @tag = params[:tag] end
Public Instance Methods
Checks whether the search string is contained in one or more of the attributes. If the search string is found true is returned otherwise false
link.contains?("example.com")
# File lib/syclink/link.rb, line 65 def contains?(search) search = search.delete(' ').downcase target = instance_variables.map { |v| instance_variable_get v }.join target.downcase.delete(' ').scan(search).size > 0 end
Checks whether the link matches the values provided by args and returns true if so otherwise false
link.match?(name: "Example", tag: "Test")
# File lib/syclink/link.rb, line 55 def match?(args) select_defined(args).reduce(true) do |sum, attribute| sum = sum && (send(attribute[0]) == attribute[1]) end end
Return the values of the link in an array
link.row
# File lib/syclink/link.rb, line 73 def row [ url, name, description, tag ] end
Updates the attributes of the link specified by args and returns the updated link
link.update(name: "Example website for testing purposes")
# File lib/syclink/link.rb, line 45 def update(args) select_defined(args).each do |attribute, value| send("#{attribute}=", value) end self end


A highly motivated and experienced Manager and Web Developer, currently looking to resume my professional career after dedicating the last 14 years to raising a family. Excellent admin skills, thorough knowledge of Web development tools and technologies, as well as proficiency in minute-taking.Now fully committed to continuing my career on a full-time basis.
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GPA: 3.7
Apart from Computer World and Managing Office, I listen Music,Follow Cricket , Football, Tennis and Badminton.
I Love Traveling and Exploring the Beauty of Nature, Reading Books, Love Movies and Social Gatherings.


Github is a community of developers. A platform where they interact, developers drop programms they have written for other developers to drop what they think about the program. It is like a developers medium of communication.
The ability to design a prototype of an application.
Html is a skeleton of any webpage.It is a developer's tool which is used for writing codes, designing a website and for developing the building-block of a website.
Excellent oral, written and good communicational skills.
Good interpersonal skills.
Innovative, intuitive and open to instruction.
User stories are written to describe the needs of the users so it can be translated to an application.
Excellent knowlegde of google packages like google docs, google sheets and google slides.
Java Script is used to add functionality to a webpage
Adequate in the use of PhP and Mysql.
Css is a developers package used to add styling to a webpage. It is used to make a webpage look beautiful and attractive.


{% extends "partials/_layout.html" %} {% load static %} {% block title %} Confirm E-mail address {% endblock title %} {% block body %} {% if confirmation %} Confirm E-mail address Thanks for registering. Please confirm that {{ confirmation.email_address.email }} is the email for user {{ confirmation.email_address.user }} {% include 'partials/_form_errors.html' %} Confirm Note: you can still change your e-mail address. {% else %} This e-mail confirmation link expired or is invalid. Please issue a new e-mail confirmation request. {% endif %}
Thanks for registering. Please confirm that {{ confirmation.email_address.email }} is the email for user {{ confirmation.email_address.user }}


Weathermaster:
P_45. The Sunshine of Spring
Actualized by temporarily raising a sun-like fire and by outputting the energy produced from the heat generated by Pa'agrio's fire through the Weathermaster.
Outputting is currently halted due to an error occurring in the safety device.
The energy input for Pa'agrio's fire is still in progress. Critical mass to be reached soon. Adjustment necessary
Stop it


MySQL (/ˌmaɪˌɛsˌkjuːˈɛl/ "My S-Q-L")[5] is an open source relational database management system (RDBMS).[6] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter,[7] and "SQL", the abbreviation for Structured Query Language.
The MySQL development project has made its source code available under the terms of the GNU General Public License, as well as under a variety of proprietary agreements. MySQL was owned and sponsored by a single for-profit firm, the Swedish company MySQL AB, now owned by Oracle Corporation.[8] For proprietary use, several paid editions are available, and offer additional functionality.
MySQL is a central component of the LAMP open-source web application software stack (and other "AMP" stacks). LAMP is an acronym for "Linux, Apache, MySQL, Perl/PHP/Python". Applications that use the MySQL database include: TYPO3, MODx, Joomla, WordPress, Simple Machines Forum, phpBB, MyBB, and Drupal. MySQL is also used in many high-profile, large-scale websites, including Google[9][10] (though not for searches), Facebook,[11][12][13] Twitter,[14] Flickr,[15] and YouTube.[16]


This API is used for communication with phone/softphone apps.
The provideApi function is used to subscribe for API messages:
var phoneApi = start.consumeApi("com.innovaphone.phone");
phoneApi.send({ mt: "StartCall", num: "123" });
phoneApi.onupdate.attach(function (sender, type) {
Object.keys(sender.model).forEach(function (key) {
var provider = sender.model[key];
if (provider.model.calls) {
provider.model.calls.forEach(function (call) {
...
}
}
}
});
Starts a new call to the given phone number or SIP-URI.
{ mt: "StartCall", num: "200" }
{ mt: "StartCall", sip<EMAIL_ADDRESS>}
{ mt: "StartCall", txt: "+49 (7031) 73009 - 0" }
{ mt: "StartCall", num: "07031730090", adjust: true }
| string num | Phone number to be dialed [optional] |
| string sip | SIP-URI to be dialed [optional] |
| string txt | Unclassified dialstring. Phoneapp will check and take it as 'num' or 'sip' [optional] |
| boolean adjust | Indicates that the number might not contain the external line prefix and might need to be added by the phone/softphone app before dialing [optional] |
Similar to "StartCall", but does not initiate the call automatically. User can verify the call destination and intiate call by clicking button.
If there's an incoming call on the phone/softphone app in "Alerting" state it can be connected with this message.
{ mt: "ConnectCall" }
If there's an active call on the phone/softphone app any state it can be disconnected with this message.
{ mt: "DisconnectCall" }
An app can monitor call activity on phone/softphone apps and can provide context information for the call to be displayed in phone/softphone app.
An app can either provide a piece of HTML code or an URL which is loaded in an iframe.
See Provider Model on how to monitor call activity on phone/softphone apps.
{ mt: "CallInfo", id: 1, html: "
Aloha from Apidemo
" }
{ mt: "CallInfo", id: 1, iframe: { src: "https://wikipedia.de/", height: "300px" } }
| number id | unique call-id [mandatory] |
| string html | HTML to be embedded [optional] |
| object iframe | [optional] |
| string src | URL of the HTML page to be embedded as iframe [optional] |
| string height | Height of the embedded iframe [optional] |
List of apps providing this API
"com.innovaphone.phone": {
"dev:SwPh_5c6aa38f": {
title: "Softphone",
info: {
type: "softphone"
},
model: {}
},
"dev:00903332024b": {
title: "IP232",
info: {
type: "phone"
},
model: {
registered: true,
calls: []
},
}
}
| string type | Type of providing app: phone (an app controlling a hardware phone) softphone (an app that can do phone calls by itself without using a hardware phone) |
{
registered: true,
calls: [
{
id: 1,
guid: "fff79c5bd2115d0109f400903341035b",
dir: "i",
num: "200",
sip: "charlie.chaplin",
dn: "Sir Charles Spencer Chaplin",
state: "Connected"
}
]
}
| number id | uniqe call-id [mandatory] |
| string guid | globally uniqe call-id [optional] |
| string dir | "i" for inbound call or "o" for outbound call [mandatory] |
| string num | Phone number (e.g. 202 or +49 7031 73009 0) [optional] |
| string sip | SIP-URI (e.g. charlie.chaplin or<EMAIL_ADDRESS>[optional] |
| string dn | Display name [optional] |
| string state | Setup | Dialing | Ringback | Queued | Alerting | Connected | Holding | Held | Disconnected [mandatory] |


A function to calculate spatial clusters using the Getis-Ord local statistic. It searches irregular clusters (ecotopes) on a map.
| Version: | 1.1 |
| Depends: | snowfall, rlecuyer, spdep |
| Suggests: | maptools, plotrix |
| Published: | 2014-08-23 |
| Author: | Guillermo Valles |
| Maintainer: | Guillermo Valles <amoeba_spatial_cluster at yahoo.com> |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: | no |
| In views: | Spatial |
| CRAN checks: | AMOEBA results |
| Reference manual: | AMOEBA.pdf |
| Package source: | AMOEBA_1.1.tar.gz |
| Windows binaries: | r-devel: AMOEBA_1.1.zip, r-release: AMOEBA_1.1.zip, r-oldrel: AMOEBA_1.1.zip |
| OS X binaries: | r-release: AMOEBA_1.1.tgz, r-oldrel: AMOEBA_1.1.tgz |
| Old sources: | AMOEBA archive |
Please use the canonical form https://CRAN.R-project.org/package=AMOEBA to link to this page.


{% extends "layout.html" %} {% block pageTitle %} Help - Apply for a vehicle test - GOV.UK {% endblock %} {% block beforeContent %}
Back {% endblock %} {% block content %}Contact the Driving and Vehicle Standards Agency (DVSA) for help with vehicle test applications.
MOT, vehicle testing and approval
<EMAIL_ADDRESS>Telephone: 0300 123 9000
Monday to Friday, 7:30am to 6pm
Find out about call charges


The triangle is:
Triangle Test
Enter the length of each side of a triangle below. Click submit to determine what type of triangle it is.
Side A
Side B
Side C
Submit


Authorize the App from your Google Account and you are ready to go!
Quick Tip: Add a Task by typing in the input box above


{{localState.value.toUpperCase()}} China Hiring Dashboard
Hiring Overview
- xx/xx (i.e. 20/30) means "fail/total" in "Resume Screened", "Phone Screened", "Onsite Interviews"
Hiring Status by Team
- click to show team detail
- xx/xx (i.e 1/4) means "Filled Reqs (Offered + Onboard)/ Total Reqs"


Class to define a single binary response from pco cameras, received over serial port.
More...
#include <pco_structures.h>
Class to define a single binary response from pco cameras, received over serial port.
◆ pco_response()
| pco_response::pco_response |
( |
| ) |
|
|
inline |
◆ addLong()
| void pco_response::addLong |
( |
long |
msg | ) |
|
|
inline |
◆ addShort()
| void pco_response::addShort |
( |
short |
msg | ) |
|
|
inline |
◆ addUChar() [1/2]
| void pco_response::addUChar |
( |
unsigned char |
msg | ) |
|
|
inline |
◆ addUChar() [2/2]
| void pco_response::addUChar |
( |
unsigned char * |
msg, |
|
|
int |
len |
|
) |
| |
|
inline |
◆ addULong()
| void pco_response::addULong |
( |
unsigned long |
msg | ) |
|
|
inline |
◆ addUShort()
| void pco_response::addUShort |
( |
unsigned short |
msg | ) |
|
|
inline |
◆ copy2Obj()
| void pco_response::copy2Obj |
( |
unsigned char * |
obj, |
|
|
int |
len |
|
) |
| |
|
inline |
◆ getCode()
| unsigned short pco_response::getCode |
( |
void |
| ) |
|
|
inline |
◆ getData()
| unsigned char* pco_response::getData |
( |
void |
| ) |
|
|
inline |
◆ getData2()
| unsigned char* pco_response::getData2 |
( |
void |
| ) |
|
|
inline |
◆ getErrCode()
| unsigned short pco_response::getErrCode |
( |
void |
| ) |
|
|
inline |
◆ getExpCode()
| unsigned short pco_response::getExpCode |
( |
void |
| ) |
|
|
inline |
◆ getLen()
| unsigned short pco_response::getLen |
( |
void |
| ) |
|
|
inline |
◆ getShort()
| short pco_response::getShort |
( |
int |
adx | ) |
|
|
inline |
◆ getUChar()
| unsigned char pco_response::getUChar |
( |
int |
adx | ) |
|
|
inline |
◆ getULong()
| unsigned long pco_response::getULong |
( |
int |
adx | ) |
|
|
inline |
◆ getUShort()
| unsigned short pco_response::getUShort |
( |
int |
adx | ) |
|
|
inline |
◆ setCode()
| void pco_response::setCode |
( |
unsigned short |
cx | ) |
|
|
inline |
◆ setErrCode()
| void pco_response::setErrCode |
( |
unsigned short |
cx | ) |
|
|
inline |
◆ setExpCode()
| void pco_response::setExpCode |
( |
unsigned short |
cx | ) |
|
|
inline |
◆ setLength()
| void pco_response::setLength |
( |
unsigned short |
lx | ) |
|
|
inline |
◆ sprintHeader()
| void pco_response::sprintHeader |
( |
char * |
strg | ) |
|
|
inline |
◆ verifyCheckSum()
| int pco_response::verifyCheckSum |
( |
void |
| ) |
|
|
inline |
◆ addr
◆ checksum
| unsigned char* pco_response::checksum |
|
protected |
◆ code
| unsigned short pco_response::code |
|
protected |
◆ data
| char pco_response::data[256] |
|
protected |
◆ error_code
| unsigned short pco_response::error_code |
|
protected |
◆ exp_code
| unsigned short pco_response::exp_code |
|
protected |
◆ length
| unsigned short* pco_response::length |
|
protected |
◆ totalsum
| int pco_response::totalsum |
|
protected |
◆ verified_chksm
| unsigned char pco_response::verified_chksm |
|
protected |
◆ verified_length
| unsigned short pco_response::verified_length |
|
protected |
The documentation for this class was generated from the following file:


It is natural that during the course you face problems with the operation of your project, maybe you get an error, while during the class everything went well. For this type of situations, I invite you to verify the original course code in the public repository of the course, here.
There, you can look class by class, the code that is being done in each one. The title of each commit sent to the repository matches the title of the classes.
If you enter the list of commits, you can find from the most recent to the oldest each of the commit of the course. Each commit coincides with the title and the code developer during a class. Of course, there are a lot of commits, so you can do a search to get to the state of the project in a particular class.
It is important that you check the state of the code in the exact moment of that class (and not the latest status) because throughout the course the same file can suffer many different changes that have nothing to do with the class you are watching. Let's see how to get the state of the code at a given time.
Let's imagine that you have problems with your code in the class titled "Implementing The Index Method for UserController".
So you go to the top right and input the title of the class you want:
Once you have the results, be sure to clic the Commits tab, to see the code for that specific class:
Then clic on the corresponding result and there you will get the details of the code in that specific moment of the class.
In that class only one file was changed. If you check below, there are the details about the files changed. The red lines are lines that were removed, and the green are lines that were created/edited.
Now, you have two optciones.
If you want to see the status of the whole project on that class (all the structure), you just need to click "Broswe files".
In the other hand, if you want to see the status of the specific files modified in that class, sou you can just click on view, in the right side of the file you want to check (if there are several files changed).
Once there, you can see the full code of that file like if you wre traveling in the time, exactly in the moment of that class
Now you know a very effective way to get access to the status of the code in a specific moment.
This will allow you to compare the codes and find the differences or event copy and paste to do not do it by your self.
Of course, if after check the code, compare, copy and paste all the relevant files, you still having problems, you can add a new question or contact me directly
See you in the next class :)