3D Modeling

[michelefiorenti]

Hi,

i am looking for a funtion to get the Points of Inflection in a curve which approximates some points in 3D space .

now  i use the following function to create  the curve: api_mk_ed_cubic

I searched and seems that there is no such algorithm in ACIS.

can you please help me?

thanks

[sanjeev]

Hi,

    There is no public function available to get the inflection points in a curve directly. However, you could try to use laws to do the same. You can make a curvature law for the curve and find the roots of that law. This way you can indirectly get the inflection points on the curve. Please take a look at the following links to get more info:

http://doc.spatial.com/index.php/LawSymbol:CURC

http://doc.spatial.com/index.php/SchemeExt:Law:nroot

  This approach may not work for complicated curves.

Regards,

Sanjeev