On Tuesday 01 May 2007 17:05, Mark Lowry wrote: > --- "Joao S. O. Bueno Calligaris" <gwidion@xxxxxxxxxx> > > wrote: > > Hi - no, there is no official way to do that. > > > > What I do in my scripts is require the user to start > > a Path with the > > bezier tool before calling the script - The script > > then use the > > coordiantes of the first (or how many I want) points > > of this path as > > input coordinates. These can e read through the PDB. > > > > js > > -><- > > I have thought about doing that and I think that is > the way I will have to go. I'm confused with how to > extract elements from the vector returned by > gimp-path-get-points. I thought I understood that > (vector-ref vector k) was the way to pull the k-1 > element from the vector, but when I input (vector-ref > '#(1 1 2 3 5 8 13 21) 5) I just get an errobj on > vector-ref. What do I need to do to be able to > extract a value from the result of > (gimp-path-get-points image path)? oh man.,.. 2 things: 1) I do python-fu, not Scheme (script-fu) - so I have erased from my mind the esoteric ways of getting elements out of a vector or array in Scheme. btw, if your plug-in is of any complexity, unless you think your time is being well spent as you exercise your mind around how to get and use data with scheme expressions as an extra exercise, I'd suggest writting it in python. If you are on windows, that will only work witht he developemtn version of GIJMP, though. But it has the advantadge of letting you worry with your problem instead of the language _and_ your problem. 2) this very API is being obsoleted in GIMP 2.3.x - there are all new vector manipulation calls in place, that can finally deal correctly with multiple stroke vectors (not needed to fecth just one or two coordinates anyway) In python, an interactiuve session exploring the return values might just display: >>> img = gimp.image_list()[0] >>> pdb.gimp_path_get_points (img, "a") (1, 0, 15, (103.03428571428572, 101.01142857142861, 1.0, 104.74857142857149, 98.902857142857101, 2.0, 529.68571428571431, 102.39999999999998, 2.0, 529.48000000000002, 102.03999999999996, 1.0, 529.27428571428572, 101.67999999999995, 2.0)) >>> v = pdb.gimp_path_get_points (img, "a") >>> points = v[3] >>> points (103.03428571428572, 101.01142857142861, 1.0, 104.74857142857149, 98.902857142857101, 2.0, 529.68571428571431, 102.39999999999998, 2.0, 529.48000000000002, 102.03999999999996, 1.0, 529.27428571428572, 101.67999999999995, 2.0) >>> points[0], points[1] (103.03428571428572, 101.01142857142861) (the ">>>" are the prompt, not part of the language) -- Bill...could you see if it iyou can add a simple api for retrieving the sample points? I think this will bother no one at this point, it is starightforward as you said, and...we want to get 2.4 out, so it has to be done real soon. js -><- > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
