[mapguide-users] Regarding How to set the Initial Map View

Wed Feb 18 09:22:46 EST 2009

The "GetSpatialExtent" method is new, so you have to use the 
MaestroAPI.dll from
thre preview binaries or grab them from the folder where you installede 
Maestro.

The SpatialContext is likely to contain wrong information (eg, just 
extent of the entire coordinate system).

Regards, Kenneth Skovhede, GEOGRAF A/S

ravinder.singh at BIRLASOFT.COM skrev:
>
> Hi Kenneth,
>
>  
>
> I have gone thru the file you referred.
>
> I have problem in Topology.Geometries.IEnvelope env = 
> ldef.GetSpatialExtent(); at line no 1912
>
> GetSpatialExtent() method is not coming in in ldef object I created.
>
> And then I tried to write just the following code
>
>  
>
> OSGeo.MapGuide.MaestroAPI.LayerDefinition ldef = 
> conn.GetLayerDefinition(mylayer.ResourceId);
>
> //Topology.Geometries.IEnvelope env = ldef
>
> OSGeo.MapGuide.MaestroAPI.FdoSpatialContextList lst = 
> conn.GetSpatialContextInfo(ldef.Item.ResourceId, false);
>
>  mapDef.Extents.MinX = 
> System.Convert.ToDouble(lst.SpatialContext[0].Extent.LowerLeftCoordinate.X);
>
>  mapDef.Extents.MinY = 
> System.Convert.ToDouble(lst.SpatialContext[0].Extent.LowerLeftCoordinate.Y);
>
>  mapDef.Extents.MaxX = 
> System.Convert.ToDouble(lst.SpatialContext[0].Extent.UpperRightCoordinate.X);
>
>  mapDef.Extents.MaxY = 
> System.Convert.ToDouble(lst.SpatialContext[0].Extent.UpperRightCoordinate.Y);
>
>  
>
> Which gives me the incorrect coordinates, I verify it with maestro, it 
> is different from that one showing in maestro, in effect the viewer 
> also is not able to show the map.
>
>  
>
> *Thanks*
>
> Ravinder
>
> ------------------------------------------------------------------------
>
> *From:* mapguide-users-bounces at lists.osgeo.org 
> [mailto:mapguide-users-bounces at lists.osgeo.org] *On Behalf Of *Kenneth 
> Skovhede, GEOGRAF A/S
> *Sent:* Wednesday, February 18, 2009 3:35 PM
> *To:* MapGuide Users Mail List
> *Subject:* Re: [mapguide-users] Regarding How to set the Initial Map View
>
>  
>
> Please have a look at the Maestro code:
> http://trac.osgeo.org/mapguide/browser/trunk/Tools/Maestro/Maestro/ResourceEditors/MapEditor.cs#L1895
>
> It shows how to read the extent of data, as well as how to set it.
>
>
> Regards, Kenneth Skovhede, GEOGRAF A/S
>
>
>
> ravinder.singh at BIRLASOFT.COM <mailto:ravinder.singh at BIRLASOFT.COM> skrev:
>
> Hi,
>
>  
>
> Although it solved out my problem of setting the initial map View at 
> Design time in maestro.
>
> Now I have written the code to set the layer of map dynamically by 
> using maestro api, the map is showing correct layer in viewer. Now I 
> want to set the Initial Map View (Lower Left and Upper Right (XY 
> Coordinates)) at run time by fetching the extents of the layer.
>
>  
>
> Please assist...
>
>  
>
> *Thanks*
>
> Ravinder
>
> ------------------------------------------------------------------------
>
> *From:* mapguide-users-bounces at lists.osgeo.org 
> <mailto:mapguide-users-bounces at lists.osgeo.org> 
> [mailto:mapguide-users-bounces at lists.osgeo.org] *On Behalf Of 
> *ravinder.singh at BIRLASOFT.COM <mailto:ravinder.singh at BIRLASOFT.COM>
> *Sent:* Tuesday, February 17, 2009 4:19 PM
> *To:* mapguide-users at lists.osgeo.org 
> <mailto:mapguide-users at lists.osgeo.org>
> *Subject:* RE: [mapguide-users] Regarding How to set the Initial Map View
>
>  
>
> Hi Kenneth,
>
>  
>
> Yes it solved out my problem.
>
>  
>
> Thanks
>
>  
>
> Regards,
>
> Ravi
>
> ------------------------------------------------------------------------
>
> *From:* mapguide-users-bounces at lists.osgeo.org 
> <mailto:mapguide-users-bounces at lists.osgeo.org> 
> [mailto:mapguide-users-bounces at lists.osgeo.org] *On Behalf Of *Kenneth 
> Skovhede, GEOGRAF A/S
> *Sent:* Tuesday, February 17, 2009 1:38 PM
> *To:* MapGuide Users Mail List
> *Subject:* Re: [mapguide-users] Regarding How to set the Initial Map View
>
>  
>
> There was a bug in Maestro that swapped some x/y coordinates, try 
> using the newest build (r3260).
>
> Regards, Kenneth Skovhede, GEOGRAF A/S
>
>
>
> ravinder.singh at BIRLASOFT.COM <mailto:ravinder.singh at BIRLASOFT.COM> skrev:
>
> Hi All,
>
>  
>
> How to set the Initial Map View (Lower Left and Upper Right (XY 
> Coordinates)) in MapGuide Maestro.
>
> If I click on Set View to Current Layers Extent (In Maestro) & Run the 
> layout then map does not appears in the viewer , seems that  map is 
> there on the viewer but at different position which is not visible at 
> startup, Because when I try to pan the map multiple times left or 
> right up or down  it appears.
>
>  
>
> I am using MGOS 2.0, .Net
>
>  
>
> Please assist...
>
>  
>
> *Thanks,*
>
> Ravi
>
>  
>
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