Rhinoceros 5.31 [isocurves]

“Extracting Isocurves ”


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  1. Somtimes when modeling in Rhinoceros, you will want to create curves on a particular surface based on the isocurves that divide that surface.
  2. Begin by selecting a surface in Rhinoceros. An example surface is shown to the below. [premium content]
  3. Rebuild the surface (Rhinoceros 5.19 [rebuild]) to give the desired number of isocurves (U and V curves that divide the surface). Generally, you will need to know basic measurements of the surface to divide it into desired segments. (This is also shown to the below.) [premium content]
  4. Now select the surface and navigate to Curve>Curve From Objects>Extract Isocurve.
  5. You will find that if you move your mouse over the surface, you will see a line in either the U or V direction. You can switch the direction by pressing “T” to toggle and hitting enter. Use your end object snap tool to pick each end of the isocurves you want extracted from your surface.
  6. When you are done, you will have a complete set of curves that you can unroll with your surface (Rhinoceros 5.22 [unrollsrf]) or use in other ways.

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