Why does my conformal lattice extend beyond the CAD Face?

Question:

Why does my conformal lattice extend beyond the CAD Face?

Why does the parameterization on my CAD face extend beyond the face?

Applies to:

  • CAD Face Parameterization
  • Conformal lattices

Answer:

Parameterization of a CAD Face depends on how the CAD geometry is generated. On the left, the geometry was generated by creating a cone and trimming that cone with a plane (leading to geometry that isn't nicely parameterized in nTopology). The face is parameterized nicely on the right because the cone was generated by lofting a circle with a tilted circle.

image__16_.png

The easiest solution for generating a lattice that conforms to a curve is to create the surface using a loft. You can see the lattice follows the edges nicely in the image below.

image__17_.png

However, sometimes this method can't create the geometry you need. If this is the case, there are some alternative approaches to create a conformal lattice. One way is to use a quad mesh to generate the lattice. It can be challenging to determine the best option since the control over cell size can be limited when using the quad mesh method. A picture of the quad mesh result is below:

image__18_.png

More on this topic:

Keywords:

 face CAD lattice conformal parametric parameterize uvw extend loft 
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