The document introduces HTML5 Canvas, which provides a plug-in free 2D drawing surface for creating graphics in the browser. It describes how Canvas was originally developed by Apple and became part of the HTML5 specification in 2012. It explains how to get the Canvas context and use various drawing methods like fillRect(), moveTo(), lineTo(), arc(), and fillText() to draw shapes, paths, and text. It also discusses browser support for Canvas and how to check for compatibility.
Портируем существующее Web-приложение в виртуальную реальность / Денис Радин ...Ontico
РИТ++ 2017, Frontend Сonf
Зал Мумбаи, 5 июня, 17:00
Тезисы:
http://frontendconf.ru/2017/abstracts/2478.html
Виртуальная реальность - мощный тренд, который до текущего момента обходил стороной веб-разработчиков. Данный доклад о том, как интегрировать существующие Web-приложения в миры виртуальной реальности, предоставляя вашим пользователям новые возможности и UX, а себе дозу фана.
Должны ли мы использовать CSS или WebGL для проброса приложения в VR?
Какие решения доступны на текущий момент, и каких ошибок стоит остерегаться?
Почему HTML так же хорош для разработки VR-интерфейсов, как и для обычного, плоского Web?
Как веб-разработчик может быть частью VR-революции?
Svg, canvas e animations in angular (3 maggio 2019)Leonardo Buscemi
In questo talk vedremo come creare componenti custom in Angular con un alto impatto visivo, grazie a SVG e CANVAS che permettono di realizzare icone, infografiche, mappe e giochi. Scopriremo come sfruttare al meglio queste tecnologie grazie ad Angular e directive, viewChild e altro. Chiuderemo il talk dando "vita" a questi componenti grazie ad animazioni CSS, Angular e GreenSock.
Портируем существующее Web-приложение в виртуальную реальность / Денис Радин ...Ontico
РИТ++ 2017, Frontend Сonf
Зал Мумбаи, 5 июня, 17:00
Тезисы:
http://frontendconf.ru/2017/abstracts/2478.html
Виртуальная реальность - мощный тренд, который до текущего момента обходил стороной веб-разработчиков. Данный доклад о том, как интегрировать существующие Web-приложения в миры виртуальной реальности, предоставляя вашим пользователям новые возможности и UX, а себе дозу фана.
Должны ли мы использовать CSS или WebGL для проброса приложения в VR?
Какие решения доступны на текущий момент, и каких ошибок стоит остерегаться?
Почему HTML так же хорош для разработки VR-интерфейсов, как и для обычного, плоского Web?
Как веб-разработчик может быть частью VR-революции?
Svg, canvas e animations in angular (3 maggio 2019)Leonardo Buscemi
In questo talk vedremo come creare componenti custom in Angular con un alto impatto visivo, grazie a SVG e CANVAS che permettono di realizzare icone, infografiche, mappe e giochi. Scopriremo come sfruttare al meglio queste tecnologie grazie ad Angular e directive, viewChild e altro. Chiuderemo il talk dando "vita" a questi componenti grazie ad animazioni CSS, Angular e GreenSock.
Introdução ao Microsoft Silverlight 2.0 - Campus Party Brasil 2009Ramon Durães
Construindo aplicações com interfaces ricas para Web. Confira uma abordagem do Silverlight 2.0 apresentada no Campus Party 2009 por Ramon Durães. MVP e especialista em desenvolvimento de software. Autor de livros, treinamentos e publicações relacionadas.
Short presentation focussing on HTML5 canvas - how it works, why it matters. Delivered as part of an Opera-internal set of presentations by the Developer Relations team on 23 February 2010 in Oslo
This presentation was given at the jQuery conference 2010 in Mountain View and featured the first public premiere of a sneak peek video of our upcoming JavaScript game engine.
The video preview can be found here: http://youtu.be/Ol3qQ4CEUTo
Enjoy and follow me at @pbakaus on Twitter!
Embarking on a software development journey for startups can be a thrilling yet daunting experience. It's a path filled with twists and turns, and challenges that can make or break your success. But fear not, for there are solutions and proven strategies that can help you achieve your goal of successful product development. Join us on this exciting adventure as we explore the secrets to unlocking your startup's full potentia
This blog includes detailed information about how chatbot empowers healthcare ecosystem. It also encompasses data based insights of healthcare chatbot advantages and attributes of an effective Chatbot.
This blog contains in-depth information about the configuration of document generation functionality in MS Dynamics 365. The entire process explained in three simple steps such as Document Template Configuration, UI for the end user and Implementation of CRM Plugin.
This blog is about conquering the operational challenges such as Beacon range detection and signal fluctuation that are encountered while getting the consistent Beacon behavior for Android and iOS mobile devices.
This blog is mainly fleshing the light over strengths and limitations of one of the most popular enterprise portal Liferay DXP. It caters in-depth information about Liferay DXP’s characteristics encompassing from architecture advantages to user experience.
This blog is about exploring Realm’s real time data sync capabilities through a Hello World mobile application. It includes in depth explanations about Realm Object Server Configuration, User Authentication for Hello World application and details about real time sync process.
This blog is about utilizing IBM Bluemix’s readily available environment capabilities for the development of IoT application by integrating it with IBMWatson, Raspberry Pi and virtual device.
This blog is about creation of a ‘Hello World’ Angular 2.0 Application integrated with Liferay DXP to fetch Liferay’s OOTB advantages. Such integration can enable quick development of secured application that provides boosted digital experience to the user.
This presentation is about how to register the virtual device and analyze the device data. For more information please visit http://www.azilen.com/blog/step-by-step-guide-to-develop-iot-application-using-ibm-bluemix/
Azilen has done Web based platform to manage and automate event management services called Analytics & ETL based BI Solutions on AWS Cloud using Mule ESB, Spring Boot, Angular JS, MongoDB, Hibernate and PostgreSQL.
Azilen has Built Advance Risk Management & Mitigation System with Complex requirement & Also upgraded to Liferay 6.2. We have used various technologies such as Liferay, Spring, Yui & Solr.
SDUI is aimed to create better and more personal experience for the end users while providing the developers the much needed customizing flexibility and agility in roll outs. With the huge spectrum of benefits to both sides – this Approach is as promising as the Tech behind it.
In this Blog, we are going to explore Liferay’s out of the box (OOTB) feature Portlet Sharing which proffers customized Widget publishing at third party websites or applications through very simple techniques.
With the introduction of new significant software platforms and several hardware products along with announcements of meaningful feature upgrades - WWDC 17 was Apple’s one of the biggest events in years.
This blog post is about command configuration set up and user oriented real time demo of application which is actually a captive portal type application designed to automate home appliances.
In this blog, we intend to develop an application that is built on RASBERRY PI using java and computer vision APIs. It will detect the hand gesture and consequently pass the signals to IR device which will then perform appropriate home automation. OpenCV and JavaCV are the core part of computer vision APIs. IR device is used as a base for communication between the two.
We have achieved gesture recognition for implementing functionality like Turning On-Off, Increasing and decreasing the temperature for Air-conditioner and Turning On-Off for Television. In This blog talks about the complete step by step guide to setup OpenCV and JavaCV on Raspberry Pi.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
Plunge into HTML5 Canvas – Let’s begin
1. Plunge into HTML5 Canvas – Let’s
begin
Before the arrival of HTML5 Canvas API it’s always a tough task to build complex graphs and
2D/3D designs in the website. Developers could only use drawing APIs all the way through
plug-ins like SVG (Scalable Vector Graphics) and VML (vector Markup Language) with some
specific web browsers like Internet Explorer. For example, to draw a simple diagonal line
without a canvas element is easy, but it’s a quite difficult task if you don’t have a simple 2D
drawing API at your clearance.
Canvas is just providing that, and that’s why it’s exceptionally useful feature to have in the
browser.
What is Canvas?
The Concept of Canvas is at first developed by APPLE to be used in Mac OS X WebKit to
create dashboard widgets.
In 2012, first draft of HTML5 is published as a working draft for the candidate
recommendation and Canvas (2D and 3D) is the part of the HTML5 specification. HTML5
Canvas is providing a plug-ins free paradigm for browser. It provides native support for many
features which is only possible with 3rd party plug-ins or JavaScript Hacks.
2. In 2012, first draft of HTML5 is published as a working draft for the candidate
recommendation and Canvas (2D and 3D) is the part of the HTML5 specification. HTML5
Canvas is providing a plug-ins free paradigm for browser. It provides native support for many
features which is only possible with 3rd party plug-ins or JavaScript Hacks.
Getting Started with HTML5 Canvas
When a canvas tag is added into the web page either statically or dynamically, it creates a
rectangular area in the page or by default rectangular area is 150 pixels high and 300 pixels
wide. User can create custom size of canvas by providing specific size. Unlike SVG, which is
vector base, canvas is pixel based.
Canvas Element
1<canvas id=”canvas1”></canvas>
After adding canvas element in your webpage you can manipulate its base on requirement
using JavaScript. User can add lines, graphics, charts, animated text within it.
If you are working with canvas dynamically/programmatically, then you have to first get its
context and perform some actions on context and finally apply those actions on the context.
Following lines of code required to get context of the canvas using the help of standard
document.getElementById Tag.
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");};
</script>
If you are using JQuery then your code is like this,
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<script type="text/javascript">
$(document).ready(function () {
var canvas = $('#canvas1');
var context = canvas[0].getContext("2d");
<script>
To locate a canvas object, you need to access its 2D drawing context.
W3C defines 2D drawing context in the following way,
“The 2D context represents a flat Cartesian surface whose origin (0, 0) is at the top left corner, with
the coordinate space having x values increasing when going right, and y values increasing when
going down.”
Canvas Coordinates
3. Coordinates in a canvas start at x=0, y=0 in the upper-left corner – which we refer as the
origin (0, 0). Using fillRect(x,y, width,height) increases the size horizontally over the x-axis
and vertically over the y-axis.
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.fillRect(20,20,150,100)};
</script>
Canvas – Paths
You can render any shape using HTML5 Canvas API. You can draw shapes, lines, text and
many more using HTML5 Canvas. Following are few functions which will help you to draw
shapes using canvas.
moveTo(x,y) Move the current pointer to a specific destination without drawing
lineTo(x,y) Move the current pointer to a specific destination with drawing a
straight line
stroke() Render a line
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.moveTo(0,0);
context.lineTo(200,100);
context.stroke();}
</script>
arc(x,y,r,start,stop) Use to render a circle with x & y coordinates, radius, starting and
ending angle.
beginPath() Start/Restart the path
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.beginPath();
context.arc(95,50,40,0,2*Math.PI);
context.stroke();};
</script>
closePath() Close the current path
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.beginPath();
context.moveTo(20,20);
context.lineTo(20,100);
context.lineTo(70,100);
context.closePath();
context.stroke();}
</script>
fill() Fill a shape with colour
fillStyle FillStyle is property to fill colour or gradient
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.rect(20,20,150,100);
context.fillStyle="blue";
context.fill();
context.stroke();}
</script&gt>
fillText(text,x,y) Draws a filled text
strokeText(text,x,y) Draws a text
font Property defines the font for text
fillText
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.font = "30px Arial";
context. fillText ("Plunge into HTML5 Canvas ",10,50);
context.stroke();}
</script>
strokeText
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<script type="text/javascript">
windows.onload=function() {
var canvas = document.getElementById('canvas1');
var context = canvas=getContext("2d");
context.font = "30px Arial";
context.strokeText("Plunge into HTML5 Canvas ",10,50);
context.stroke();}
</script>
Browser Support for HTML5 Canvas
After arrival of Internet Explorer 9, almost every browser vendors are trying to provide full
support for the HTML5 Canvas but majorly available browsers are not providing full support
5. for HTML5 Canvas. Below is the browsers detail which tells you about that how they are
dealing with HTML5 Canvas.
Browser Description
Internet Explorer IE 8 and earlier versions do not support <canvas>
element
Google Chrome Supports <canvas> element through –webkit–
Firefox Firefox may have support via the moz setting
Safari 6 for Mac Supports <canvas> element through –webkit–
Opera Opera 15 has support of few features
If you are working with the <canvas> element than it’s a good practice to check browser
compatibility and in the case where the client’s browser is not supporting <canvas> element
then you can place other alternate text.
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<script type="text/javascript">
windows.onload=function() {
try{
document.createElement("canvas1").getContext("2d");
document.getElementById("support").innerHTML ="HTML5
Canvas is supported in your browser.";
} catch (e) {
document.getElementById("support").innerHTML = "HTML5
Canvas is not supported in your browser.";}
};
</script>
This article provides you the basic overview about the HTML5 Canvas and its different
property and more. In the upcoming article we will discuss more about HTML5 Canvas like
Background Patterns, Canvas Transforms, Canvas Security, Animation, etc. Stay Tuned!