Bending a solid using a limiting curve

In the following step-by-step example you will use the Use limiting curve option of the GSM Bend command to bend a portion of a solid limited by a curve.

1 Load file "GB_LimitingCurve.e3".



Start the GSM Bend command and select the solid.

2 Under More Options, select the Copy check box.
3 Select the bend line.

4 Under More Options, select the Use limiting curve check box. Then select the red curve as in the following illustration.



The handles show up.

5 Drag the Length handle to the desired position or type in the corresponding value.

6 Click or to confirm your selections modify the shape of the object.



Click to discard your changes.

Restricting the domain of the controlled modification by using a limiting curve
By selecting the Use limiting curve check box under More Options, you can restrict the domain of the controlled modification to the zone limited by the curve selected as the Limiting curve.
You can choose whether the cutting line must also be affected by the limiting curve or not. If you select the At both endpoints check box, the shape of the cutting line will follow the one of the limiting curve (thus becoming a cutting curve). If you leave the box unchecked the cutting line will be a line, not being affected by the limiting curve shape. See the following example.



1 — is the bend line
2 — is the limiting curve
3 — is the cutting line.
And here is what happens when you bend the object. See the different result depending on the status of the At both endpoints check box.

NOT SELECTED: the cutting line is a line



SELECTED: the cutting line is a curve following the shape of the limiting curve.

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