Dear all<br><br>sorry for the newbie question. I did some experiments with gdal but I was unable gettint to the target.<br><br>I have a DTM in ASCII GRID, I produced an hillshade relief with gdaldem program and saved the ouput in a tiff file.<br>
What I would like to do now is to merge this tiff with an other tiff containing the DTM with a color ramp rendering. The merge should be done setting the opacity of one of the two tiff file to avoid complete overriding. I wonder if this could be done creating a vrt dataset of the two files and editing the vrt file. <br>
Any hints?<br><br>thanks for your hints<br><br>stefano iacovella<br>