Hi there, i'm pretty new to IDL and got a question regarding DEM processing in IDL. I have a dataset of TDX DEMs and want to manipulate certain areas. When i open the DEM (.ras file) in ENVI it is no problem but there i can't do the stuff i want to process. So, how do i read a DEM (.ras) into IDL? As for now i use READ_BINARY with the correct DATA_DIMS but all i got was a really jibberish image? Any help would be appreciated and thanks in advance! UPDATE: Ok so i think my problem is somewhere else. The imported data is roughly a 9000x10000 array. So if the data is imported correctly, what would be the best way to print it? Right now i use a window with the same size of the array and the tvscl procedure to display the data. UPDATE2: So i adjusted some things in the data dims, data type and used the image procedure instead of the tvscl. I got an image that is much more reasonable; still not perfect but i'm getting there. SOLVED