Html5 canvas scrolling, zooming, fade out effect

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My final is goal to implement a app like http://www.crystal.ch/abb/power_systems_landscape/[^] using html5.

As you see, we may need a large(2000*600) canvas, but im not sure.

Can anyone give me idea just for following behavior of above link ?

1. Scrolling left-right smoothly using mousemove and mousedown operation
2. Scrolling left-right smoothly according to power system selection
3. Zoom in zoom out
4. Fade out effect like plus iconic circles

Any kind of idea would be appreciated.

Posted 25-Feb-12 10:36am

Shahdat Hosain

Updated 25-Feb-12 18:02pm

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ed Nutting · Answer 1 · 2012-02-26T08:05:00

Start by looking some HTML5/CSS3 and look at how to use overflow, position, top, left, width and height styles to get the canvas to move show only one portion. Increasing width/height proportionally will get you zoom functionality. Finally, look at jQuery - type it into Google. Learn how to use it for manipulating the above styles in JavaScript and for handling events. These few things are all that you need. I suggest you look up the W3Schools website for learning HTML5/CSS3.

Hope this helps,
Ed

Html5 canvas scrolling, zooming, fade out effect

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Html5 canvas scrolling, zooming, fade out effect

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