Hi Snah,
Thanks for the error report. I'll have a look into the support for TIFFs from PS. However, as Rummy noted, it's best co combine GeoTIFFs in programs that support GeoTIFF headers.
By the way, you can combine the maps in L3DT directly. To do this, import the first TIFF as normal, then use the '
Extensions->atMergeMap->Merge heightmap' menu option to add the second map with an offset (
see user guide here).
To trim the map, you can use the select area tool to select the area you wish to keep, then export the selected area as a file (as HFZ, I suggest). Finally, simply load that exported area as your heightfield ('
File->Import->Heightfield').
Cheerio,
Aaron.
PS: I just noticed that the merge heightmap option doesn't include the '.tif' extension in the filter for the file browser dialog box, so you'll have to select 'All files (*.*)' to see the TIFFs. This has been fixed in the next release. Also, in the next release the merge heightmaps menu link will be available at 'File->Import->Merge heightmaps'.