Hello, I am using osgEarth to overlay a survey map onto another map. The survey image is generated as a GeoTiff and draped across the base map. I would like the areas that have no data (white) to be transparent. How do I do this? So far my code is like this but it does nothing at all.
Code: GDALOptions gdalOptImg; gdalOptImg.url() = url; gdalOptImg.noDataValue() = 0; ImageLayerOptions layerOptions(name, gdalOptImg); osg::Vec4ub *transparentColor = new osg::Vec4ub(); transparentColor->r() = 255.0f; transparentColor->g() = 255.0f; transparentColor->b() = 255.0f; transparentColor->a() = 1.0; layerOptions.transparentColor() = *transparentColor; layerOptions.name() = name; imageryLayer = new ImageLayer(layerOptions); I have tried a trillion different combinations but none of them seem to do anything. If you reply please provide a code example, or links to where I can read more information about this, not just an API. Some source code is worth a thousand words :) Many thanks for your help! [/code] ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=72935#72935 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
