[mapguide-users] gettile method problems

[alucas]

Hello Kenneth,

If after call GetTile I write the tile in a temporary directory, then the
service does not goes down. Strange behaviour...

Now my code looks something like this:

for (int s = scaleCount -1; s >=0; s--)
{
  // nTilesX and nTilesY calculation
  // ...

  for (int r = 0; r <= nTilesX; r++)
  {
     for (int c = 0; c <= nTilesY; c++)
     {       
            MgByteReader br = ts.GetTile(mapResId, layerGroup, c, r, s);
            MgByteSink bs = new MgByteSink(br);
            bs.ToFile(@"c:\Temp\s"+ s.ToString() +"_r"+r.ToString()+"_c"+
c.ToString()+".jpg");
           
      }
  }
}

If I comment the lines for write the tiles, then I get the exception again.

Any Idea?



Kenneth Skovhede, GEOGRAF A/S wrote:
> 
> I can't tell you exactly what goes wrong, but work for a tile generator 
> has been done elsewhere.
> 
> The FMTilingEngine prepares tiles, and automatically restarts the 
> MapGuide service when it encounters the problem:
> http://www.websoftdev.com/download.cfm
> 
> Zac has developed a browser based tile seeder:
> http://zacster.blogspot.com/2008/07/mapguide-tile-cache-seeder.html
> 
> I am building a tile seeder for use with Maestro (not complete, and not 
> released, LGPL):
> http://svn.osgeo.org/mapguide/trunk/Tools/Maestro/MgCooker/
> 
> Perhaps the FMTilingEngine will solve your troubles.
> If not, you can consider building on one of the other solutions.
> 
> Regards, Kenneth Skovhede, GEOGRAF A/S
> 
> 
> 
> alucas skrev:
>> Hello all,
>>
>> I'm trying to develop a tile pre-generation desktop application. To do
>> this,
>> I'm using mapguidedotnetapi.dll reference. My program creates a
>> connection
>> to the server and through the tileservice try to call gettile method for
>> every tile. My problem is that gettile method fails and returns an
>> xmlstream
>> exception, then I need to restart the server service because I get a
>> connection exception.
>>
>> This is the exception:
>>
>> http://www.nabble.com/file/p20872280/exception.jpg 
>>
>> The exception happens not in the first gettile call, it happens when I
>> called several times this method. My program is something like this:
>>
>> ...
>> for each scalecount
>>   for each column
>>     for each row
>>       tileService.GetTile(mapResId, layerGroupName, c, r, s)
>> ...
>>
>> Solutions I tried:
>>
>> - Modify serverconfig.ini to enable poolconnections for my data.
>> - Use thread.sleep between iterations
>> - Use a separate thread to do this work
>> - Generate tiles only for a scale factor.
>>
>> This solutions does not work for me.
>>
>> Any idea?
>>
>> Sorry for my english...
>>
>> Thanks in advance
>>
>>
>>   
> _______________________________________________
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> mapguide-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapguide-users
> 
> 

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