Heres an interesting critique of prototype.js (you've probably seen it):<br>
<a href="http://blog.metawrap.com/blog/WhyIDontUseThePrototypejsJavaScriptLibrary.aspx">http://blog.metawrap.com/blog/WhyIDontUseThePrototypejsJavaScriptLibrary.aspx</a><br><br>
Aaron<br>
<br><div><span class="gmail_quote">On 6/20/06, <b class="gmail_sendername">Steve Lime</b> <<a href="mailto:Steve.Lime@dnr.state.mn.us">Steve.Lime@dnr.state.mn.us</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
What does OpenLayers offer that ka-map doesn't ( besides a better name ;-) )? The<br>list you reel off of limitations is pretty substantial.<br><br>Steve<br><br>>>> Paul Spencer <<a href="mailto:pspencer@dmsolutions.ca">
pspencer@dmsolutions.ca</a>> 6/20/2006 1:28:19 PM >>><br>Hello ka-Mappers!<br><br>I had a very interesting discussion with the developers of<br>OpenLayers, a javascript api for tiled maps. Turns out OpenLayers
<br>and ka-Map are very similar. We decided that it would be beneficial<br>for both communities if we attempted to merge the projects. The<br>purpose of this email is to present this idea to the ka-Map community<br>in order to generate some discussion on the subject.
<br><br>OpenLayers is hosted at <a href="http://www.openlayers.org/">http://www.openlayers.org/</a>. They have some<br>very interesting objectives which I think are compatible with ka-<br>Map. Take a look at their site.
<br><br>OpenLayers is written on top of prototype.js, which was one of the<br>things I was planning to do with ka-Map in the next couple of weeks.<br>It has a very nice looking architecture and the code base is very<br>readable.
<br><br>It is lacking quite a few things that ka-Map has:<br><br>* core tiling engine is very similar, but it is not quite as optimal<br>(doesn't reuse images for instance)<br><br>* overlay stuff is point/text only<br><br>
* lacking tools (layer controls, scale bar etc) and the windowing stuff<br><br>* lacking query capability<br><br>* tile caching<br><br>* probably several other things I can't think of right now<br><br>I think that there are some differences in how OpenLayers and ka-Map
<br>approach things, but I'm not entirely sure that they are significant.<br><br>At this point, I am proposing to join the two projects into a single<br>project. My desired approach would be to start with the OpenLayers<br>
code and start to bring over the parts of ka-Map that I(we) feel are<br>missing.<br><br>Please let me know what you think of this. And point out all the<br>problems you can think of.<br><br>Cheers<br><br>Paul<br><br>+-----------------------------------------------------------------+
<br>|Paul
Spencer
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