[mapguide-users] Tooltip on MapGuide Web API

[gatopardo]

I've tried to open the map with MgMap.Create() and with MgMap.Open()
I've tried to call Save(), but doesnt' work.

It could be a bug? Or I am doing something wrong?



Chris Claydon wrote:
> 
> I *think* that when you call RenderMap, it will set the width and height
> for the in-memory map object. Try calling Save() on the map to save the
> values back to the session repository before making the calls to
> GetDisplayWidth/GetDisplayHeight.
> 
> Chris.
> 
> -----Original Message-----
> From: mapguide-users-bounces at lists.osgeo.org
> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of gatopardo
> Sent: Tuesday, May 26, 2009 7:05 AM
> To: mapguide-users at lists.osgeo.org
> Subject: RE: [mapguide-users] Tooltip on MapGuide Web API
> 
> 
> I've tried QueryFeatures on MgRenderingService, but it throws an
> exception.
> I've been looking the MgRenderingService source code, and the exception is
> because the map has the height, width and scale equal to 0.
> 
> I don't know how can I set this values on Web Api. Because the map doesn't
> have setDisplayWidth or setDisplayHeight methods, only have
> GetDisplayWidth
> and GetDisplayHeight. Both returns 0.
> 
> First of all I have rendered map images, but the map object doesn't save
> the
> render height and width.
> So I think the real problem is how to make that the MgMap Object
> "remembers"
> the last render height and width parameters, or how to set them.
> 
> 
> Chris Claydon wrote:
>> 
>> I'm pretty sure that QUERYMAPFEATURES ends up calling the QueryFeatures
>> method on the MgRenderingService. You'll need to create a geometry object
>> that corresponds to the point you're clicking on. It is best to make it a
>> small square rather than a single point, in order for the spatial filter
>> to pick up the underlying feature. And it should use coordinates in the
>> same coordinate system as the map (not image pixel cords).
>> 
>> Chris.
>> 
>> 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: Monday, May 25, 2009 7:35 AM
>> To: MapGuide Users Mail List
>> Subject: Re: [mapguide-users] Tooltip on MapGuide Web API
>> 
>> The operation is called "QUERYMAPFEATURES", but I can't seem
>> to find it as a function from the Web API.
>> You can see it in use if you look in the file:
>> C:\program
>> files\MapGuideOpenSource2.0\WebServerExtensions\www\viewerfiles\ajaxmappane.templ
>> line 2555.
>> 
>> You may also want to read this thread:
>> http://lists.osgeo.org/pipermail/mapguide-users/2007-January/004818.html
>> 
>> 
>> Regards, Kenneth Skovhede, GEOGRAF A/S
>> 
>> 
>> gatopardo skrev:
>> 
>> Nobody can help me?
>> 
>> 
>> 
>> 
>> 
>> gatopardo wrote:
>> 
>> 
>> 
>> How could I get the Tooltip on a point using MapGuide Web API?
>> 
>> 
>> 
>> Example:
>> 
>> I have generated an image using MgRenderingService.RenderMap, and after
>> 
>> that I want to get the tooltip on a point of this image, using the
>> 
>> coordinates on image pixels or converting them to lat-lon.
>> 
>> 
>> 
>> But I haven't found any method that makes this.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> mapguide-users mailing list
>> mapguide-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>> 
>> 
> 
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