Enhancements to Iso Angle tool

We added a new option to the Evaluate > Iso Angle tool to create actual curves-on-surface from iso-angle lines instead of visual-only curves. The curves-on-surface can be used for modeling operations such as geometry creation, trimming, or measuring.

To create curve-on-surface geometry from the iso-angle lines, select Create curves, and then select Geometry.

Note If Construction History Updates During Transforms is turned on (in Preferences > Performance Options...) curves-on-surface temporarily become visual curves during the interactive updates, in order to provide faster redraw. This does not happen if the curves-on-surface have locators on them, are used in trimming, or if the transformation requires the tessellation to be recomputed (for example, in Transform CV). This also applies to curves-on-surface created with the Parting Line and Highlights tools.