Jonathan Spalink jspalink
CnrLwlss
/ circleObjective.py
Created
January 19, 2013 13:51
Functions for packing N circles into a rectangle of width W and height H, together with a function for plotting solution and some example code fitting 13 circles into a square. http://cnr.lwlss.net/CircleObjectivesPython/ #python #opimisation #circle #packing #svg #function #closure
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| import random, numpy | |
| def genGuess(N,W,H): | |
| '''Generate sensible initial guess vector (random circle coordinates and radii)''' | |
| z=numpy.zeros(3*N) | |
| for i in xrange(0,N): | |
| z[i*3]=random.random()*W | |
| z[i*3+1]=random.random()*H | |
| z[i*3+2]=0.001*min(W,H)+random.random()*(0.009*min(W,H)) | |
| return(z) |