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

[Ivan Milicevic]

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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