Hello, I am running mapserver 6.0.1 trought a cgi script with apache on a debian VM. I am trying to visualise images through WMS using a custom app I developped based on the WorldWind API. I prepared the images with gdal, tiled them, created a shapefile index and overviews. I configured Apache, redacted the mapfile etc. Everything works almost fine.
The problem is that when requesting my tiles i can see some of them but others are returned blank. I tried in ArcGIS, my WorldWind App and a browser. Some of the Images and their associated tiles are always blank (always the same ones). I displayed the images (that generate the blank images) and their tiles without any problem in ArcMap but when going through mapserver something I dont know is happening and messing up some of them. I put my Layer in Debug and noticed something in the logfile : When the tile is working I have : [Wed Aug 12 09:58:22 2015].426335 msResampleGDALToMap in effect: cellsize = 0.000007 [Wed Aug 12 09:58:22 2015].426380 msDrawGDAL(Pipes_Layer): using RAW_WINDOW=0 0 1639 1442, dst=0,0,8,7 [Wed Aug 12 09:58:22 2015].426390 msDrawRasterLayerGDAL(): red,green,blue,alpha bands = 1,0,0,0 When its not I have : [Wed Aug 12 09:58:22 2015].424930 msResampleGDALToMap in effect: cellsize = 0.000000 [Wed Aug 12 09:58:22 2015].424973 msDrawGDAL(Pipes_Layer): using RAW_WINDOW=0 0 1 1, dst=0,0,1,1 [Wed Aug 12 09:58:22 2015].424984 msDrawRasterLayerGDAL(): red,green,blue,alpha bands = 1,0,0,0 [Wed Aug 12 09:58:22 2015].425405 msInitProjTransformer() returned NULL. So I can deduce something is wrong here, but I dont really understand why... I am pretty new in this thing and my knowledge stops here... All the Images come from the same survey and have been through the same processing. I will gladly give you any information you might need to investigate this issue. I hope I have been clear enough... Thank you in advance for your help. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Some-queries-return-blank-Images-tp5219503.html Sent from the Mapserver - User mailing list archive at Nabble.com. _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
