[mapguide-internals] Fwd: Swithing base MgLayerGroupon/off...fails?

[Ivan Milicevic]

I have founded solution for this problem.
 
look at ShowBaseGroup function in ajaxmappane.templ file, deliver to this function layer id, name and visible status. You can modify this function if you don't use in-bulit legent (I see that you don't).
 
Sorry for "spaming" internals :-)

________________________________

From: mapguide-internals-bounces at lists.osgeo.org on behalf of Ivan Milicevic
Sent: sri 26.12.2007 23:21
To: MapGuide Internals Mail List
Subject: RE: [mapguide-internals] Fwd: Swithing base MgLayerGroupon/off...fails?



Maksim,

now I have the samo problem. Have you resolved it yet?

________________________________

From: mapguide-internals-bounces at lists.osgeo.org on behalf of Maksim Sestic
Sent: pon 24.12.2007 10:04
To: mapguide-internals at lists.osgeo.org
Subject: RE: [mapguide-internals] Fwd: Swithing base MgLayerGroup on/off...fails?




Event handler is OK, it does triger parent.parent.Refresh()... which is
actually mapFrame.Refresh(), so there's no difference.

Changing a zoom factor for a pixel won't work in my case since I'm working
with predefined scale range. Zooming in/out may take significant amount of
time since targeted base layer group contains orthophoto imagery (almost 200
Kb per tile). If I perform zoom in + refresh, then zoom back + refresh it'll
take twice as much time to complete map refresh operation.

Regards,
Maksim Sestic



Ivan Milicevic-3 wrote:
>
> Are you sure that paren.parent.Refresh() triggers refreshing?
>
> Try parent.mapFrame.Refresh()
>
> Maybe Refres works for "dynamic" layers?
>
> I had same problem but I resolved it wit paning 1 point to the left. Never
> figured out why Refresno() doesn't work.
>
> ________________________________
>
> From: mapguide-internals-bounces at lists.osgeo.org on behalf of Maksim
> Sestic
> Sent: pon 24.12.2007 9:45
> To: mapguide-internals at lists.osgeo.org
> Subject: RE: [mapguide-internals] Fwd: Swithing base MgLayerGroup on/off
> ...fails?
>
>
>
>
> That's the most intriguing part - as soon as I perform zoom (not pan,
> since
> tiles on base layer group are fully precached), targeted layer group
> becomes
> visible/invisible, as set. I don't get why issuing
> parent.parent.Refresh();
> won't update it in the first place. Is there some other type of JavaScript
> refresh function available?
>
> Regards,
> Maksim Sestic
>
>
>
> Ivan Milicevic-3 wrote:
>>
>> And when you move a view with pan? The map still hide group?
>>
>> ________________________________
>>
>> From: mapguide-internals-bounces at lists.osgeo.org on behalf of Maksim
>> Sestic
>> Sent: pet 21.12.2007 12:40
>> To: mapguide-internals at lists.osgeo.org
>> Subject: [mapguide-internals] Fwd: Swithing base MgLayerGroup on/off ...
>> fails?
>>
>>
>>
>>
>> I guess I'm missing something, but this won't switch on/off base layer
>> group:
>>
>> Dim map As MgMap = ...get runtime Map...
>> Dim layerGroup As MgLayerGroup =
>> map.GetLayerGroups.GetItem(layerGroupName)
>> layerGroup.SetVisible(True)
>> map.Save(...ResourceService...)
>>
>> and then call JavaScript function parent.parent.Refresh(); from Task
>> Pane,
>> base layer group gets switched on only in legend pane, but map
>> representation won't change. MgLayerGroup doesn't have ForceRefresh()
>> method
>> like MgLayer.
>>
>> I'm coding my own Legend TreeView control in AJAX.NET and everything else
>> in
>> it works just fine (dynamic layers, etc), except for the base layer
>> groups.
>>
>> Regards,
>> Maksim Sestic
>> --
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