r.tiff

[Viitanen Petri]

E.A. Koster (ekoster at let.rug.nl) wrote:

: Yes, I know this problem, the method I use is:
: - write a ppm-file with p.map, this creates the file paint.ppm
: - read this file with XV and write it as a tiff with no compression
: - this tiff-file you can import in CorelDraw

: I did it just this morning ;)
: What is causing this problem, I don't know, I've looked to the files that did
: not work, and the problem is somewhere at 40% of the file-length.

: I hope this offers you a sollution
: Elwin Koster


	Yes, it is a solution, but the problem is, using xv I can't do it 
	automatically, so it takes some time and effort to do. What I'm 
	working on are shell scripts, which would update my TIFF-maps every
	time the GRASS database maps have been modified. There is,
	however GRASS program tiffcp which reads TIFF files and converts
	them to other TIFF formats (such as LZW -> PackBits), but if I copy 
	my existing TIFF files with this program into LZW, the problem
	is still the same. I have considered switching to PackBits-
	format, but then the files would be circa two times larger and I
	have to be able to distribute these files on floppy disks.


Petri Viitanen
Tampere City Surveying Dept.

v150340 at proffa.cc.tut.fi