Hi Jachym,<br><br>for me on XP and Firefox <a href="http://2.0.0.8">2.0.0.8</a> this appears quite unresponsive, even though after a bit of clicking something eventually happens. I am not sure about the graphical solution as I do not really know when a layer is switched on or off.
<br><br>A while ago I experimented a bit with a custom layer switcher outside the map window, it still seems to be working at <br><br><a href="http://www.yunnanexplorer.com/mars.html">http://www.yunnanexplorer.com/mars.html
</a><br><br>There were several ideas in it:<br>First of all ignore the tick-boxes -- they flicker a layer on and off. This is not very intuitive. I thought once having a special effects div hidden with every layer that could be turned on and off. Flickering a layer, moving a sliding window over a layer, inverting colours, image stretching could all go in there. Never followed through.
<br><br>The sliders allow to adjust transparency of a layer: red all the way to the left is off, green is 100% opaque. The rest somewhere in the middle: good way if you want to look at data in more than one map at a time.
<br><br>Furthermore it is possible to drag the layers up and down, changing the stacking/drawing order. I know that conflicts with the baselayer concept of OL.<br><br>These effects were done with scriptaculous and do not really work that well under IE, but someone with more patience/time than me could probably make them work. It is now over a year old and I have not done any work on it, so some of the layers have ceased to function.
<br><br>I think building better/different layer switchers, particularly with grouping, is quite important...<br><br>Ludwig<br><br><br><br><br><br><br><div><span class="gmail_quote">On 23/10/2007, <b class="gmail_sendername">
Jachym Cepicky</b> <<a href="mailto:jachym.cepicky@gmail.com">jachym.cepicky@gmail.com</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;">
Hi,<br><br>could anybody of you, guys, have a look at new "custom LayerSwitcher"<br>example [1] ?<br><br>I hope, it works on all platforms<br><br>Comments are more then welcomed<br><br>Jachym<br><br>P.S. You will have to probably zoom to Canada, go get all layers work
<br><br>[1]<br><a href="http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layerswitcher.html">http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layerswitcher.html</a><br><br>Jachym Cepicky píše v Po 15. 10. 2007 v 13:20 +0200:
<br>> Hi developers,<br>> I have implemented ordering map layers into groups [1]. You have to<br>> specify new layer attribute group:"Group Name", e.g.:<br>><br>> var dm = new OpenLayers.Layer.WMS
( "DM Solutions Transit",<br>> "<a href="http://www2.dmsolutions.ca/cgi-bin/mswms_gmap">http://www2.dmsolutions.ca/cgi-bin/mswms_gmap</a>",<br>> {layers: "rail,road",
<br>> transparent: "true", format: "image/png"<br>> },<br>> {<br>> group:"Transit"<br>> });<br>
><br>> You can define group hierarchy using "/" mark:<br>><br>> ....<br>> group: "Transit/Roads"<br>> ....<br>><br>> Only changed file is LayerSwitcher.js<br>><br>> For example see [2]
<br>><br>> Hope, you'll like it<br>><br>> Jachym<br>><br>> [1] <a href="http://trac.openlayers.org/ticket/1086">http://trac.openlayers.org/ticket/1086</a><br>> [2]<br>> <a href="http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layer-groups.html">
http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layer-groups.html</a><br>> _______________________________________________<br>> Dev mailing list<br>> <a href="mailto:Dev@openlayers.org">Dev@openlayers.org
</a><br>> <a href="http://openlayers.org/mailman/listinfo/dev">http://openlayers.org/mailman/listinfo/dev</a><br>--<br>Jachym Cepicky<br>e-mail: <a href="mailto:jachym.cepicky@gmail.com">jachym.cepicky@gmail.com</a><br>
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