[mapguide-users] Manipulating Maps in a Session, .NET API

[Kenneth Skovhede, GEOGRAF A/S]

I have not used tiles, so I don't know how that is done.
If you just want to create tiles, Kori Maleski has done a great job with 
a builder:
http://www.websoftdev.com/download.cfm

I'm guessing that tile (0,0) is has the same upper left coordinates as 
your map extent.

Regards, Kenneth Skovhede, GEOGRAF A/S



Johann Nothbauer skrev:
> Hi Kenneth!
>
> Thanks for your clarification.
>
> I assume this is true for the Tile Service, as well?
> How can I find out, which Tile (Row/Column) should be fetched for a 
> certain World Coordinate? I know how to compute the Tile Size in World 
> Coordinates for the current scale. But where do the Tiles "Start"? 
> Where is Tile 0/0 georeferenced? Is it the starting Map Extent?
>
> Any help appreciated,
> cheers,
> Nothi
>
>
> Kenneth Skovhede, GEOGRAF A/S wrote:
>> There is no scale in the runtime map (MgMap).
>> When you request that the image is rendered, you supply dpi, 
>> resolution and either center/scale or extent.
>> You cannot store the scale or the center in the runtime map, you must 
>> store it locally in your client.
>>
>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>
>>
>>
>> Johann Nothbauer skrev:
>>> Hi All!
>>>
>>> Is it possible to manipulate a MgMap object via the .NET API?
>>> I am using the .NET API without a Viewer-Context. I'm trying to 
>>> render a Map to a System.Windows.Form in .NET.
>>> I can render a Map, but can I can't change the ViewExtents or the 
>>> ViewScale like this:
>>>
>>> MgMap kgMap = new MgMap();
>>> ... some map initialization...
>>>
>>> MgPoint center = kgMap.ViewCenter;  // this works well
>>> double viewScale = kgMap.ViewScale;
>>>
>>> kgMap.SetViewScale() // is impossible, no such Method
>>>
>>> Is this the right approach for doing such things?
>>> Should I use the Mapagent instead? If yes, which Method will do the 
>>> Trick?
>>>
>>> cheers,
>>> Nothi
>>>
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