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I completely rewrote Mycelium in Plask. It's much cleaner now, and uses Skia for PDF export which is much faster. In the Processing version adding text was a huge pain. There was a system for exporting variously colored lines, which would then be stroked with text in Illustrator. It was super laborious and didn't look that good. Now it's automated and parameterized. Perhaps i'll write a little bit more about it later.
The text used here is an excerpt from Thoughts on Art and Life by Leonardo da Vinci.
Alexandre apresentou uma visão geral sobre projeto e consumo de APIs em REST no navegador e as vantagens de utilizar recursos do protocolo HTTP como cache, autenticação, negociação de conteúdo e hipermídia.
Today, we got aidiences of 114!
Deep technical sessions were talked geekly.
Shibuya.JS is a leading group focused into JavaScript in Japan: shibuyajs.org/
11th APRIL, LONDON - Damjan Vujnovic shares when he decided to build mindmup.com. The two main goals, to learn cool stuff and have fun. What went right? What went wrong? What was most surprising? How did they test, monitor & troubleshoot? See the SkillsCast recording (film, code, slides) at bit.ly/16V3t3p
Impressions from the first nz.js(con); conference.javascript.org.nz/ organized by the JavaScript Society of New Zealand. javascript.org.nz/ Matt presented "I Play the JavaScript": Generating audio via JavaScript code.
ZoomCharts at DevClub.lv: Developing a Javascript SDK
On January 15, 2015, ZoomCharts Co-Founder and CTO Viesturs Zariņš presented at DevClub.lv - a community of Latvian IT specialists that gather monthly and host free talks, presentations, and events to allow the local IT community to share knowledge, network, and communicate. Zariņš discussed the unique challenges faced in developing JavaScript SDK.
Here is a brief overview of his PowerPoint presentation on ZoomCharts, the world’s most interactive data visualization software that will support all your data presentation needs with incredible speed.
What is ZoomCharts?
What defines ZoomCharts advanced data visualization software? It is NOT another HTML5 charts library. It is:
- Interactive
- Fast
- Touch enabled
- Supports big data
A long time ago
DOS 6.2 allowed for:
- 320x240x8bpp
- Direct access to pixels on screen
- Assembler for performance
Today, the Web has finally caught up in the graphics department. Now, we have access to:
- Multiple browsers and rendering technologies
- Multiple resolutions
- Performance that varies by browser and device
Development setup:
- We write in JavaScript
- Commit to GitHub
- Build system in JavaScript
- Debug in Chrome
- Run automated tests
- Like WebStorm (and Vim)
Graphics:
Canvas (fast)
SVG (slow)
WebGL (>50%)
Interactive animations:
Zoom in and out of the graph, drag and drop data, all with your mouse or trackpad.
Graceful degradation:
High FPS (frames per second) lets you scale graphics with low image degradation.
Third party libraries:
- Raphael
- Hammer.js
- Leaflet
- Moment.js
Challenges:
- Responsive design: layouts can shift and look nice on desktop screens vs. not so nice on vertical, mobile screens
- Big screen resolutions: uses devicePixelRatio for sharp rendering, but no hardware acceleration beyond 2048x2048
- Safari compatibility: with 100% CPU, input events are blocked and browser locks up; strange code offers fixes
- HTML on canvas: DOM is slow; basic HTML markup must be parsed and rendered manually; text caching helps
Support:
- Process: TrialSupportBuy
- 1 day issue resolution
- #1 Tell me what I did wrong
- #2 Can you do…
Testing:
- Automated tests on every GIT push
Automatically:
- Compare images
- Record performance
- View errors in console
Interactive testing:
- Next step: record and playback
BrowserStack:
- Interactive mode
- Automated: Selenium API
Debugging:
Chrome Developer tools (F12)
- Debugging
- Profiling
- Timeline
Remote debugging available: developer.chrome.com/devtools/docs/remote-debugging
Future:
- More charts
- Extension API
- Memory allocation tracking
- WebGL
We are looking for statically-typed language:
- Error checking
- Performance
- Superior minification
- Easy to write and read
- Easy to call from JS
Building
Custom build script:
- Compile
- Minify
- Extract documentation
- Embed customer data
Check out ZoomCharts products:
Network Chart
Big network exploration
Explore linked data sets. Highlight relevant data with dynamic filters and visual styles. Incremental data loading. Exploration with focus nodes.
Time Chart
Time navigation and exploration tool
Browse activity logs, select time ranges. Multiple data series and value axes. Switch between time units.
Pie Chart
Amazingly intuitive hierarchical data exploration
Get quick overview of your data and drill down when necessary. All in a single easy to use chart.
Facet Chart
Scrollable bar chart with drill-down
Compare values side by side and provide easy access to the long tail.
ZoomCharts
The world’s most interactive data visualization software
#zoomcharts #interactive #data #interactivedata #datavisualization #interactivedatavisualization #chart #graph #charts #graphs #Javascript #JavascriptSDK #DevClubIV #Latvia #PowerPoint #PowerPointpresentation #fast #bigdata
Speaking at the Crockford on JavaScript lecture series finale at Yahoo! headquarters in Sunnyvale on March 31, 2010.
bMap is a Google maps jQuery plugin which allows you add markers, layers or custom marker icons on Google...
Impressions from the first nz.js(con); conference.javascript.org.nz/ organized by the JavaScript Society of New Zealand. javascript.org.nz/