I have not used this for a while, as I found it borderline useless with
the reader complications.
As I recall, you cannot exhaust the MgByteReader by a single call.
You must itterate over the reader, and read 8K blocks for each itteration.
As I wrote, you should be able to find working code by searhing the posts.
If you find it, the Code Wiki is at:
http://trac.osgeo.org/mapguide/wiki/CodeSamples
Regards, Kenneth, GEOGRAF A/S
monegodj skrev:
This snippet is where I connect to the rendering service, call it, and then
write to the HTML response (and to file, to test the call). I've cut out
setting up the selection and the map connection (sel and map) to keep this
brief.
...
MgRenderingService sRendering =
(MgRenderingService)connection.CreateService(MgServiceType.RenderingService);
MgByteReader mapguideImageData = sRendering.RenderMap(map, sel,
"JPG");
byte[] imageData = new byte[mapguideImageData.GetLength()];
mapguideImageData.Read(imageData, 0);
Response.ContentType = mapguideImageData.GetMimeType();
Response.BinaryWrite(imageData);
Response.End();
FileStream f = (new
FileInfo(@"D:\test.jpg")).Open(FileMode.OpenOrCreate, FileAccess.Write);
using(f)
{
foreach(byte b in imageData)
{
f.WriteByte(b);
}
}
Kenneth, GEOGRAF A/S wrote:
I have worked some with the rendering service in .Net.
Is the byte array the size you expect?
Can you post a code snippet with the code you try to run?
Regards, Kenneth, GEOGRAF A/S
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