Hello world, I have a few questions about mapserver. We are testing the mapserver 5.0 with a geotools 2.3 client as a user interface.
We use Mapserver with Raster SHOM Data. Each layers ( 5 ) are tiled (gdaltindex) and overviewed (gdaladdo -r nearest 2 4 8 16) with tif raster data (SHOM). These SHOM display some area of French-Polynesia. These Layers are scaled with parameters minscale and maxscale. I have try the ouput drivers GDAL, GD and AGG ( Gif, png (24/32 bits), jpeg and jpeg2000) for output WMS requests with screen size of 600*600 pixels. Is there any FORMATOPTION for tuning the size of these output or other tricks ? Because : with GIF format , i get an image size of 400 KBytes ( IMAGEMODE PC256), with JP2K format => 500 KBytes, with JPEG format => 900 KBytes, with Png format => 1 MBtyes. Another thing, the transparency : All layers in the mapfile are scales (min,max), but when my BBOX go out of all scales i have different results depending of the OUPUTFORMAT. For rendering the output, i use Geotools 2.3, i have in the user client, three layers : The topmost layer are Vector data compute by a GEOSERVER, The middle layer is my SHOM data compute by the mapserver, and the base Layer are Vector Data representing the island's coastal edges of French-Polynesia computed also by a GEOSERVER. So when BBOX is out of scale , i only see the topmost layer with the JPEG Driver, it seems that the result of the mapserver is not Transparent => is there any possibility to render the base layer not hided by the SHOM Data layer with a AGG/JPEG driver ? With the other format (GIF, png) i can see the topmost layer and the islands => because they can do Transparency. -- View this message in context: http://www.nabble.com/A-jpeg-output-transparent-with-WMS-tf4656417.html#a13305330 Sent from the Mapserver - User mailing list archive at Nabble.com.
