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added getPoolSizeRanges(), a utility function to estimate the ideal particle system size

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This commit is contained in:
Josh Wilson 2006-06-29 19:18:43 +00:00
parent 3f619486e9
commit f1a5b2058d
1 changed files with 16 additions and 0 deletions
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16
direct/src/particles/Particles.py
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@ -546,3 +546,19 @@ class Particles(ParticleSystem):
file.write('# Tangent Ring parameters\n')
file.write(targ + '.emitter.setRadius(%.4f)\n' % self.emitter.getRadius())
file.write(targ + '.emitter.setRadiusSpread(%.4f)\n' % self.emitter.getRadiusSpread())
def getPoolSizeRanges(self):
litterRange = [max(1,self.getLitterSize()-self.getLitterSpread()),
self.getLitterSize(),
self.getLitterSize()+self.getLitterSpread()]
lifespanRange = [self.factory.getLifespanBase()-self.factory.getLifespanSpread(),
self.factory.getLifespanBase(),
self.factory.getLifespanBase()+self.factory.getLifespanSpread()]
birthRateRange = [self.getBirthRate()] * 3
print litterRange
print lifespanRange
print birthRateRange
return dict(zip(('min','median','max'),[l*s/b for l,s,b in zip(litterRange,lifespanRange,birthRateRange)]))