Problem with SplineHelp

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 11/12/2011 at 15:11, xxxxxxxx wrote:

In the documentation, the GetOffSetFromUnit and GetOffsetFromReal have their discription swapped.
And I just can't get any usable value from the GetTangent function. If the spline is a flat spline, it always returns Vector(0,1,0).

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 13/12/2011 at 00:57, xxxxxxxx wrote:

Hi,

Originally posted by xxxxxxxx

In the documentation, the GetOffSetFromUnit and GetOffsetFromReal have their discription swapped.

Thank you for the error report in the docs. I fixed it.

Originally posted by xxxxxxxx

And I just can't get any usable value from the GetTangent function. If the spline is a flat spline, it always returns Vector(0,1,0).

About SplineHelp.GetTangent(), you should try to use SplineObject.GetTangent() :

import c4d
from c4d import utils
  
def MakeEditable(op) :
    if (not op) | op.CheckType(c4d.Ospline) : return op
    
    op = [op.GetClone()]
    doc = c4d.documents.BaseDocument()
    doc.InsertObject(op[0], None, None)
    op = c4d.utils.SendModelingCommand(command = c4d.MCOMMAND_MAKEEDITABLE,
                                       list = op,
                                       mode = c4d.MODELINGCOMMANDMODE_EDGESELECTION,
                                       doc = doc)
    return op[0]
  
  
def main() :
    spline = MakeEditable(op)
    if (not spline) | (not spline.CheckType(c4d.Ospline)) : return
    
    for i in range(0, spline.GetTangentCount()) :
        tangent = spline.GetTangent(i)
        print tangent
  
  
if __name__=='__main__':
    main()

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 30/12/2011 at 14:56, xxxxxxxx wrote:

I'd like to align my clone to the spline
As I have the percentage along spline and the mograph clone matrix for each clone

using
spltanvec = c4d.utils.SplineHelp.GetTangent( pospercent, smooth=True, realoffset=True)
gives me an error - expecting spline help object?

out of the blue I added a spline help object
used earlier in my code
shelp = SplineHelp()
shelp.InitSpline(spl,use_deformed_points=True)

spltanvec = c4d.utils.SplineHelp.GetTangent(shelp, pospercent, smooth=True, realoffset=True)

but this just gives me an unchanging vector - no matter what position percentage I use

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 31/12/2011 at 02:36, xxxxxxxx wrote:

I've posted the whole c4d file on CGSociety Maxon thread - coding. Any help appreciated.