On Friday, September 05, 2008 9:05 AM, "Rob Antonishen" <rob.antonishen@xxxxxxxxx> wrote > Hia Dalton! > > 1) Set the control points the same as the anchor points for straight > segments, > > 2) They aren't schemem pairs, it is a just a big list. So for a three > straight segment bezier this is an example: > > #( 100 100 100 100 100 100 300 199 300 199 300 199 141 250 141 250 141 > 250 ) > > where it is really (P1x P1y P1x P1y P1x P1y P2x P2y P2x P2y P2x P2y P3x > P3y > P3x P3y P3x P3y) It turns out this is an "array" data type, which is functionally different than a "list" and which was originally called a "vector" in Scheme (just to keep things totally confusing ;)). > 3) The last parameter for gimp-vectors-stroke-new-from-points is the > closed > Boolean. Just set it true in your case. I knew that. What I was asking (due to an odd experience while trying to draw a pentagram manually) was whether the last implied side of the polygon would be stroked. However, testing on the Script-Fu console showed it would. > The best thing I found (running on windows) was to a) Open up a script-fu > console and play with simple images/objects to see what they commands look > like/return - I have been burned by not CARing returned layers for > example) > and to b) run gimp in console mode (gimp --console-messages) so you can > send > debug messages out to the console using (gimp-message "foobar") Now this is what I meant about needing the advice of a Script-Fu Sensei; the first part seems perfectly obvious once you read it (but not before unfortunately) while the second revealed an option I didn't know existed (and will use once I get to that stage). Experimenting with the PDB and script console revealed an interesting oddity; even when a procedure returns only a single value, it does so as a one element list which has to be CARed to extract it. I think this could be important enough to be mentioned in the scripting documentation pages the next time they are updated. <hint /> -- Dalton "who will be asking more questions once he gets some sleep" Spence
