Hi, Ludwig M Brinckmann píše v Út 23. 10. 2007 v 21:06 +0100: > Hi Jachym, > > for me on XP and Firefox 2.0.0.8 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.
Some layers were active only, if you zoomed to region around Canada (fixed). I completely agree with you, that the "design" of the page "could" be more intuitive -- sorry, no graphical designer. > > A while ago I experimented a bit with a custom layer switcher outside > the map window, it still seems to be working at > > http://www.yunnanexplorer.com/mars.html > > There were several ideas in it: > 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. nice demo > > 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. this is somehow more intuitive, than my previous layer-buttons.html example. Sliders are better for opacity settings, but I did not know, how to get them in current LayerSwitcher dimensions. > > > 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. Dragging is definitely more intuitive, than buttons (again layer-buttons.html in my sandbox), when it is working. Together with layer groups (layer-groups.html), the code would get pretty complicated.. > > 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. > > I think building better/different layer switchers, particularly with > grouping, is quite important... I'm working on it. If others like it, I hope, it would appear in OpenLayers trunk - I'm not avare of any other impediment. Jachym > > Ludwig > > > > > > > On 23/10/2007, Jachym Cepicky <[EMAIL PROTECTED]> wrote: > Hi, > > could anybody of you, guys, have a look at new "custom > LayerSwitcher" > example [1] ? > > I hope, it works on all platforms > > Comments are more then welcomed > > Jachym > > P.S. You will have to probably zoom to Canada, go get all > layers work > > [1] > > http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layerswitcher.html > > Jachym Cepicky píše v Po 15. 10. 2007 v 13:20 +0200: > > Hi developers, > > I have implemented ordering map layers into groups [1]. You > have to > > specify new layer attribute group:"Group Name", e.g.: > > > > var dm = new OpenLayers.Layer.WMS ( "DM Solutions Transit", > > > "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap";, > > {layers: "rail,road", > > transparent: "true", format: "image/png" > > }, > > { > > group:"Transit" > > }); > > > > You can define group hierarchy using "/" mark: > > > > .... > > group: "Transit/Roads" > > .... > > > > Only changed file is LayerSwitcher.js > > > > For example see [2] > > > > Hope, you'll like it > > > > Jachym > > > > [1] http://trac.openlayers.org/ticket/1086 > > [2] > > > > http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layer-groups.html > > _______________________________________________ > > Dev mailing list > > [email protected] > > http://openlayers.org/mailman/listinfo/dev > -- > Jachym Cepicky > e-mail: [EMAIL PROTECTED] > URL: http://les-ejk.cz > GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub > > > _______________________________________________ > Dev mailing list > [email protected] > http://openlayers.org/mailman/listinfo/dev > > > -- Jachym Cepicky e-mail: [EMAIL PROTECTED] URL: http://les-ejk.cz GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub
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