[Gimp-developer] Format of GIMP gradient files

[Gordon Royle]

Hi,

What is the format of the GIMP gradient files?

For example, the gradient "default" which goes from black->white with a 
grey midpoint has the following text format:

GIMP Gradient
1
0.000000 0.500000 1.000000 0.000000 0.000000 0.000000 1.000000 1.000000 1.000000 1.000000 1.000000 0 0

and the gradient French flag has the format:

GIMP Gradient
3
0.000000 0.166667 0.333333 0.000000 0.000000 1.000000 1.000000 0.000000 0.000000 1.000000 1.000000 0 0
0.333333 0.500000 0.666667 1.000000 1.000000 1.000000 1.000000 1.000000 1.000000 1.000000 1.000000 0 0
0.666667 0.833333 1.000000 1.000000 0.000000 0.000000 1.000000 1.000000 0.000000 0.000000 1.000000 0 0

So the first number is obviously the number of segments in the gradient,
and therefore each line must describe one segment.

The first three values are the left/middle/right end points of the
segments respectively.

this leaves me with 8 floating point numbers and 2 integers to 
describe the three colours - the first 3 numbers seem to be the
RGB values of the left end point. But what the heck are the 
remaining numbers? They don't seem to correspond to anything !

Any help appreciated...



-- 
Dr. Gordon F Royle, http://www.cs.uwa.edu.au/~gordon, gordon@cs.uwa.edu.au
--