BSpline Control Net
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This function can be used to display all of the control points in the u and v directions, and the array of control points, for a given surface.
Using the Function:
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Select BSpline Control Net from the Tools>Verify submenu.
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The following question will appear on the Conversation Bar: Would you like these entities to be drawn just temporarily? Select either Yes or No to continue.
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You will be prompted to select a bspline surface (or surfaces) to analyze.
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Select surface, and the U and V Control Net will be displayed.