Created
March 26, 2013 21:34
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Evenly distributed points on a Softimage curve
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si = Application | |
def frange(x, y, jump): | |
''' | |
Like range() but with float values. | |
''' | |
while x < y: | |
yield x | |
x += jump | |
def evenPositions(crv, quantity): | |
''' | |
Get an amount of evenly spaced positions on a given curve. | |
''' | |
subcrv = crv.ActivePrimitive.Geometry.Curves(0) | |
percs = [num for num in frange(0.0, 100.0, 100.0 / quantity)] | |
percs.append(100) | |
ppos = [ subcrv.EvaluatePosition( subcrv.GetUFromPercentage(percs[i]) )[0] for i in xrange(len(percs)) ] | |
return ppos | |
def main(): | |
size = float( Application.XSIInputBox("What particle size do you plan on using?", "So I know the spacing...", 1) ) | |
newCurves = [] | |
si.OpenUndo("Make evenly spread linear curves") | |
for crv in si.Selection: | |
quantity = int(crv.ActivePrimitive.Geometry.Curves(0).Length / (size*2.0)) | |
positions = evenPositions(crv, quantity) | |
positions = ["(%s,%s,%s)" % (a.X,a.Y,a.Z) for a in positions] | |
newCurve = si.CreateCurve( 1, 0, ",".join(positions), False)('Value') | |
newCurve.Name = crv.Name+'_evenlySpaced' | |
newCurves.append(newCurve) | |
si.SelectObj(newCurves) | |
si.CloseUndo() | |
main() |
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