It does write a PNG to disk and appears with a brown background, which is an improvement. However, the map does not show, but this indicates to me that something previous in my code is wrong.
Thanks. Andy Morsell wrote: > > Hi Jim, > The below code works for me when I worked on a similar application awhile > back. > > MgColor bgcolor = new MgColor(0,0,0,0); > MgByteReader byteReader = renderingService.RenderMap(map, selection, > envelop, 600, 600, bgcolor, "png" ); > long byteReaderSize = byteReader.GetLength(); > //Create an MgByteSink and save to the file system > MgByteSink byteSink = new MgByteSink(byteReader); > string fileName = "c:\\temp\\test" + i + ".png"; > byteSink.ToFile(fileName); > > > Andy Morsell, P.E. > Spatial Integrators, Inc. > http://www.SpatialGIS.com > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Jim O'Leary > Sent: Tuesday, July 31, 2007 8:06 AM > To: [email protected] > Subject: [mapguide-users] RenderMap in C# > > > I'm implementing the createimagemap.php DevGuide sample in C#. When I use > "GIF" as the format argument to RenderMap I see a blank image with a brown > background (which is the color argument). When I use PNG or JPG I just see > a > blank image. > > Here's my C# code. > > MgByteReader byteReader = renderingService.RenderMap(map, selection, > envelope, width, height, color, "PNG"); > Response.AddHeader("Content-type: ", byteReader.GetMimeType() ); > > byte[] buffer= new byte[50000]; > while (byteReader.Read(buffer, 50000) != 0) { > Response.BinaryWrite(buffer); > } > > Any suggestions? I've also tried Response.Buffer and Response.BufferOutput > to no effect. > > Thanks. > -- > View this message in context: > http://www.nabble.com/RenderMap-in-C--tf4193602s16610.html#a11925975 > Sent from the MapGuide Users mailing list archive at Nabble.com. > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > -- View this message in context: http://www.nabble.com/RenderMap-in-C--tf4193602s16610.html#a11927629 Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
