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This task explains how to modify a curve, or
surface boundary, by extrapolation,
that is by modification of its length. It can be a positive or negative
extrapolation meaning that you can actually lengthen or shorten the curve. |
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Open the
FreeStyle_Part_21.CATPart document. |
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Select the curve to be extrapolated.
It will be extrapolated on the end-point side closest to the selection
point.
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Click the Styling Extrapolate icon
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The Extrapolation dialog box is displayed.
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Only the Tangential extrapolation type is
available for curves. |
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Click the Tangential option:
The curve is extrapolated taking into account the keyed in length
(expressed in model units).
Here we keyed in 100.
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If you key in a negative value, the resulting curve is created in the
other direction.
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Click OK to create the extrapolated curve.
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- You can also use the manipulators to interactively modify the value.
- The curvilinear length of the extrapolation is displayed.
- Capabilities are available from:
- the contextual menu when right-clicking an end point.
- the dashboard: auto detection, attenuation,
Temporary Analysis
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