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: TrialSupportBuy

- 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

www.zoomcharts.com

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

GitHub Drinkup

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk

www.restorethefourth.net

rtfsf.github.io

Some of these photos are at

www.demotix.com/news/2224293/restore-fourth-former-nsa-sp...

Mark Klein disclosed the NSA had a secret room taping into the Internet at AT&T San Francisco HQ and in other cities

www.wired.com/threatlevel/2013/06/nsa-whistleblower-klein/

www.eff.org/nsa-spying

www.pbs.org/wgbh/pages/frontline/homefront/interviews/kle...

www.pbs.org/wgbh/nova/military/spy-factory.htm

More #NSA Snowden Bradley Manning wikileaks photos

www.flickr.com/photos/ari/collections/72157625853473374/

github.com/atduskgreg/Processing-Shader-Examples/tree/mas...

My lovely wife surpirsed me with a GitHub mug for my birthday. She's the best!

wuipdesign.github.io

Free photos. Set 3.

Use it freely in personal and commercial projects.

CC-License

Photos: Anthony Clochard / wuipdesign.github.io

wuipdesign.github.io

Free photos. Set 2.

Use it freely in personal and commercial projects.

CC-License

Photos: Anthony Clochard / wuipdesign.github.io

GitHub continues to become more and more of an amazing collaborative tool for code reviews. I love the new pull request handling.

My only wish is that you can associated a pull with an EXISTING issue, instead of creating a new one.

wuipdesign.github.io

Free photos. Set 13.

Use it freely in personal and commercial projects.

CC-License

Photos: Anthony Clochard / wuipdesign.github.io

DIBI 2011

Build it!

raw data on github: github.com/alphagov/redirector/tree/master/data/mappings

Shoot with the founders of github.com

This image is the 2 outer layers of a 4 layer PCB I recently designed. This PCB is for my Logic Analyzer project - which if you're interested you can follow along at github.com/sgstair/logicanalyzer

notlion.github.com/streetview-stereographic/#o=0.908,-0.2...

Tom Preston-Warner presents his OSCON keynote where he covers licensing options.

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk

Remake of Lion's standard Andromeda Galaxy wallpaper.

Thanks @Iamsebj

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk

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: TrialSupportBuy

- 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

www.zoomcharts.com

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

www.restorethefourth.net

rtfsf.github.io

Some of these photos are at

www.demotix.com/news/2224293/restore-fourth-former-nsa-sp...

Mark Klein disclosed the NSA had a secret room taping into the Internet at AT&T San Francisco HQ and in other cities

www.wired.com/threatlevel/2013/06/nsa-whistleblower-klein/

www.eff.org/nsa-spying

www.pbs.org/wgbh/pages/frontline/homefront/interviews/kle...

www.pbs.org/wgbh/nova/military/spy-factory.htm

More #NSA Snowden Bradley Manning wikileaks photos

www.flickr.com/photos/ari/collections/72157625853473374/

GitHub's wallpaper

stephaniecp.github.io/ahoy

you know it

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk

- SRWE

- HattiWatti's Cinematic Tools

- IDK's AR Unlocker for cutscenes

- Sylan Reshade by Erika

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk

wuipdesign.github.io

Free photos. Set 17.

Use it freely in personal and commercial projects.

CC-License

Photos: Anthony Clochard / wuipdesign.github.io

wuipdesign.github.io

Free photos. Set 33.

Use it freely in personal and commercial projects.

CC-License

Photos: Anthony Clochard / wuipdesign.github.io

floating-marine-laboratory.github.io/Floating-Marine-Labo...

Location: goo.gl/maps/q67qBY7L1vAeL91H8

Authors:

Chan Cheong Kitkitcch@connect.hku.hk;

Chan Yuet Sum Canossau3510011@connect.hku.hk;

Kaufmann Maximilian Ferdinandmkauf@connect.hku.hk;

Lau Ho Chuen Maxwelllhcmax94@connect.hku.hk;

Lu Xiner Cenaluu3571357@connect.hku.hk; cenalu@qq.com;

Sin Chung Kei Nathannsck@connect.hku.hk;

Sun Zhengyuzyusun12@connect.hku.hk;

Wong Tsz Ching Cecicecitcw@gmail.com;

Wu Ho Ting Silverh1357797@connect.hku.hk;

Yeung Hin Oswinoswinyh@connect.hku.hk;

Yuen Ka Ho Kelvinu3571360@connect.hku.hk;

Zhang Houzheu3571366@connect.hku.hk;

Huang Shidanhsd1996@connect.hku.hk;

Mundle Kent Mackinnon Georgikmundle@connect.hku.hk;

Ng Kwok Jing Jamesu3528257@connect.hku.hk;

Lee Gavin Yu Hingavinlyh@connect.hku.hk

Tsang Hoi Lam Jessica Mary jessmt@connect.hku.hk