regarding output profiling of printers with rgb profiles we are generating a target withthe standard flags without adding iterative & adaptive full spread patches.
What is the command line you're using ?
we have made some tests adding such patches, but so far we do not see any advantage yet.
Just because options are present, doesn't mean you have to use them...
first of all we'd like to ask if you can give us some more detailed information about the - f flag (-t, -r, -R, -q -i, -I) as we do not exactly know in what logic these
> flags will add patches to the regular grid distribution of the target generation. I really don't recommend a regular grid. It's inefficient, and can tweak resonance's in the per channel curve fitting. Instead, use the recommended settings <http://www.argyllcms.com/doc/Scenarios.html#PP2>. This gives you a set of test points at the colorant extreme combinations (that's what the default -m value of 2 gives you), and the -f gives you the balance of the test points using the default Optimized Farthest Point Sampling.
the second question we have; is it possible to add single patches into a ti1 file? we would like to add patches such as rgb (0,0,1 ; 0,1,0, ; 1,0,0 ; etc.) to fine-tune dark areas for instance...
You get the patches in your examples by default due to -m2. You can add other things like wedges (-s and -g) which is good when you're profiling a source space, and you can edit the .ti1 file and add extra specific colors if you like too (also good for characterizing proofing source spaces.) You can use the -r flag in printtarg to avoid randomizing the patch locations, and then preview the result with something like PhotoShop or Ghostscript. Graeme Gill.