Scenario (V4/V5 SPACE): How to manage Surface and Curve Sub-elements (Segmentation)

This task shows you how to use Segmentation in Tools > Options > general > Compatibility: V4 / V5 SPACE.
Open SURFACE_C2_WITH_3_PATCHES.model and copy / paste it into a V5 CATPart and update the V5 CATPart.

Here are two examples illustrating the behavior of this setting:

  1. When the Keep Segmentation option is not activated and the Curvature Improvement (Maximum Deformation) is 0.1mm, go into the FreeStyle Shaper workbench and copy/paste *SUR5 into a new Part. Select Surface.1 (*SUR5)  and click the Geometric Information icon . The Geometric Analysis dialog box appears:

Geometry Analysis delivers the following information:

  • Number of components U: 1

  • Number of components V: 1 > only one component because you have not selected the Keep Segmentation option. The default value of this option is taken into account and the Surface has been simplified.

  • Without selecting the Keep Segmentation option, the nodes are removed and geometry is simplified within the tolerance.

  1. When the Keep Segmentation option is activated and the Curvature Improvement (Maximum Deformation) is 0.1mm, go into the FreeStyle Shaper workbench and copy/paste *SUR5 into a new Part. Select Surface.1 (*SUR5) and click the Geometric Information icon . The Geometric Analysis dialog box appears:

And you can visualize the following information:

  • Number of components U: 1

  • Number of components V: 3 > 3 components because you have selected the Keep Segmentation option and it forces the numbers and boundaries of the arcs and patches to be kept.