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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
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: Trialïƒ Supportïƒ 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
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
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.pbs.org/wgbh/pages/frontline/homefront/interviews/kle...
www.pbs.org/wgbh/nova/military/spy-factory.htm
More #NSA Snowden Bradley Manning wikileaks photos
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
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
Free photos. Set 17.
Use it freely in personal and commercial projects.
CC-License
Photos: Anthony Clochard / 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
Free photos. Set 1.
Use it freely in personal and commercial projects.
CC-License
Photos: Anthony Clochard / wuipdesign.github.io
Free photos. Set 19.
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
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.pbs.org/wgbh/pages/frontline/homefront/interviews/kle...
www.pbs.org/wgbh/nova/military/spy-factory.htm
More #NSA Snowden Bradley Manning wikileaks photos
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
Free photos. Set 26.
Use it freely in personal and commercial projects.
CC-License
Photos: Anthony Clochard / wuipdesign.github.io
Blog post about this Arduino Project: neophob.com/2012/08/expeditinvaders-the-spiced-up-ikea-sh...
Source is on GitHub: github.com/neophob/ExpeditInvaders
Free photos. Set 7.
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