Hi, What is the exact relation between blue and black points? I guess it depends on the samples. You can build a script to constraint the black point depending on the blue point and the direction, then embed this script on your Dr. Geo sketch.
However, Dr. Geo Smalltalk sketch[1] fit better your needs, for several reasons: 1. you can import your data samples (100 or 1000 samples, up to you), 2. do the necessary interpolation calculus from these samples 3. build up the model using Dr. Geo Smalltalk API 4. animate with the specific #do: and #update: messages from the API Check for documentation[2]. French version is more up to date for Dr. Geo scripting however in your case Dr. Geo Smalltalk sketch is well documented in the English documentation, thanks to Edward Cherlin contribution. You can watch Dr. Geo TV[3] on the programming topic. I hope to produce more step by step video tutorials on Dr. Geo programming, as the recent ones I announced here a few days ago. However the documentation comes with several examples easy to understand and the whole API is described. Hilaire [1] http://drgeo.olympe.in/doc/en/drgeo010.html [2] http://www.drgeo.eu/community/documentation [3] http://www.drgeo.eu/screenshot-video Le 22/09/2015 04:05, Offray Vladimir Luna Cárdenas a écrit : > Hi again, > -- Dr. Geo http://drgeo.eu http://google.com/+DrgeoEu