Here's a script that I made that I use when I need nicely spaced curve
points:
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 spacing do you want
between points, in XSI units?", "Spacing?", 1) )
newCurves = []
si.OpenUndo("Make evenly spread linear curves")
for crv in si.Selection:
quantity = int(crv.ActivePrimitive.Geometry.Curves(0).Length / size)
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()
On Fri, Aug 2, 2013 at 11:26 AM, Ponthieux, Joseph G. (LARC-E1A)[LITES] <
[email protected]> wrote:
> Rob,
>
> Yeah, its turns out that this might be a far more reliable method than
> what I was trying to accomplish. I guess I'll have to make a copy of every
> curve, but there are far fewer curves than objects or strands. This might
> solve the problem nicely.
>
> Thanks
>
> --
> Joey Ponthieux
> LaRC Information Technology Enhanced Services (LITES)
> Mymic Technical Services
> NASA Langley Research Center
> __________________________________________________
> Opinions stated here-in are strictly those of the author and do not
> represent the opinions of NASA or any other party.
>
> -----Original Message-----
> From: [email protected] [mailto:
> [email protected]] On Behalf Of Rob Chapman
> Sent: Friday, August 02, 2013 9:16 AM
> To: [email protected]
> Subject: Re: Convert curve to linear
>
> yes! create > curve > fit on curve
>
> I was going to suggest it earlier but your point 3. requirements said it
> must fit with *any* curve :)
>
> change to degree linear, subdivision high and untick maintain discontinuity
>
>
>
> On 2 August 2013 15:11, Ponthieux, Joseph G. (LARC-E1A)[LITES] <
> [email protected]> wrote:
> > Is there in any way in Soft to convert a NURBS curve of any shape, to
> > a high density linear curve with equidistant points?
> >
> >
> >
> > --
> >
> > Joey Ponthieux
> >
> > LaRC Information Technology Enhanced Services (LITES)
> >
> > Mymic Technical Services
> >
> > NASA Langley Research Center
> >
> > __________________________________________________
> >
> > Opinions stated here-in are strictly those of the author and do not
> >
> > represent the opinions of NASA or any other party.
> >
> >
>
>
