To Extract Multiple Curves from a Surface
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Select the Extract Iso-Curves tool ().
![](GUID-067A0A6E-162A-C87F-F0D0-C30E9EE43E99-low.png)
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In the tool settings, set Extract to Multiple Curves.
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Select the surface.
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Enter a data point to accept the surface.
The curves are generated.
Left: Original surface. Right: Surface with 10 extracted iso-parametric lines in both directions.