Hi,
I try your answer Don. I think that it's the good way but i Idon't manage to
change the projection policy and i don't know why! I can show you a piece
of my properties file.
### -GoogleLayer- layer properties
GoogleLayer.addToBeanContext=true
GoogleLayer.autoPalette=false
GoogleLayer.background=false
GoogleLayer.class=com.bbn.openmap.plugin.PlugInLayer
GoogleLayer.consumeEvents=false
GoogleLayer.interruptable=true
GoogleLayer.pcp.class=google.GooglePCP
GoogleLayer.plugin=google.GooglePlugin
GoogleLayer.plugin.addToBeanContext=true
GoogleLayer.pluginremovable=true
GoogleLayer.prettyName=GoogleLayer
GoogleLayer.projectionChangePolicy=pcp
GoogleLayer.removable=true
GoogleLayer.renderPolicy=rp
GoogleLayer.rp.class=com.bbn.openmap.layer.policy.StandardRenderPolicy
GoogleLayer.transparency=1.0
### end of -GoogleLayer- properties
2008/8/14 Don Dietrick <dietrick_at_bbn.com>
> Hi Guillaume,
>
> It depends on how you are managing the OMGraphicList of the layer when it
> gets a projection change. This is handled by the ProjectionChangePolicy
> (for OMGraphicHandlerLayers). The ListResetPCPolicy clears out the list
> before the prepare() method is called, so that the layer doesn't render
> OMGraphics at their old location before the prepare() method is finished.
> The StandardPCPolicy leaves the list alone and makes sure the prepare()
> method is called to call generate(...) on the list with the new Projection.
>
> It sounds like you should do something in between -- you probably want to
> generate the existing OMRasterObject containing the google image with the
> new projection, so it gets moved to the right location, and then call
> prepare() to retrieve the new image for the new projection, replacing the
> new old image with the new one once it arrives. You could do this by
> writing a new ProjectionChangePolicy object and setting it on the layer.
>
> Hope this helps,
>
> Don
>
>
> Guillaume Bastianelli wrote:
>
>> Hello,
>>
>> I'm working on a layer which take static map of the google static map, and
>> display it on openmap. It works quite well but when i update my layer, it
>> disappear and reappear. I just want to knox if it's possible to avoid that.
>> Thanks
>>
>>
>> Guilaume
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>
>
>
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Received on Wed Aug 20 2008 - 05:47:37 EDT