topic Re: IE7-compatible Heatmap for JSAPI? in ArcGIS JavaScript Maps SDK Questions

IE7-compatible Heatmap for JSAPI?

philippenn — Wed, 11 Apr 2012 18:14:49 GMT

I've seen great HTML5 (Canvas)-based heatmap capabilities on this forum but am looking for something that works with IE7...has anyone got anything to share?

thanks

Phil

Re: IE7-compatible Heatmap for JSAPI?

RaviKonaparthi — Sat, 14 Apr 2012 14:46:41 GMT

Hi Phil,

Here is a sample implementation of HEAT maps using google maps. This API works with ArcGIS JS API too.

http://geochalkboard.wordpress.com/2009/03/11/density-mapping-in-google-maps-with-heatmapapi/

Regards,
Ravi.

Re: IE7-compatible Heatmap for JSAPI?

LabanNdungo — Sun, 10 Feb 2013 18:50:09 GMT

Just wondering if anyone EVER found a way to get heatmap.js working on IE8 and below. Doing a project for a client and she insists that IE8 should be supported but I cannot for the life of me find a working sample of heatmap.js on anything other than IE9. My implementation works great on IE9 but is unable to run on IE8. Any one with ideas on how to make it work? I'd appreciate it greatly.

Re: IE7-compatible Heatmap for JSAPI?

JeffJacobson — Mon, 11 Feb 2013 16:49:30 GMT

It looks like IE9 was the first version of IE to support HTML5 <canvas> element.

Re: IE7-compatible Heatmap for JSAPI?

SteveCole — Mon, 11 Feb 2013 17:00:32 GMT

I'm COMPLETELY throwing this out as wild advice but you could look into this HTML5 Canvas for Internet Explorer and see if it helps make the heatmap apps work?

I stumbled across this while trying to get charting working for IE-8 (the canvas is an issue for this as well). I never pursued what I have linked but maybe it can work for you...

Good luck!
Steve

Re: IE7-compatible Heatmap for JSAPI?

AdrianMarsden — Mon, 11 Feb 2013 17:11:45 GMT

If you are stuck on IE7 (bad luck) and can install IE plugins then rather than the one above (which looks interesting) why no go the whole way and use Google Chrome Frame which will give you the Chrome experiance, but within an IE container - which will remain IE for the majority of sites. I'm about to deploy this internally until we can get of XP/IE8

Re: IE7-compatible Heatmap for JSAPI?

MattLane — Mon, 11 Feb 2013 17:30:31 GMT

Mark Pilgrim, in his great work "Dive Into HTML5" suggests using excanvas.js for IE support.

Not sure if that would fit the bill.

Re: IE7-compatible Heatmap for JSAPI?

LabanNdungo — Tue, 12 Feb 2013 06:12:17 GMT

Dear Matt, evtguy and amarsden,

Thanks a lot for your advice. I have actually been looking at excanvas.js for the past two days and trying to make it work. However, still hitting a brick wall. Have modified the excanvas.js script a bit but IE8 is still not able to recognize the canvas element. Anyone with experience on this? Wondering if Phillip Penn managed to get something - I saw on github that he was contributing to the heatmap.js repository.