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Click Reference Curve by Offset Command to display the Reference Curve by Offset Ribbon.
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Select the plate system.
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Click Base Curve .
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Select a base curve that the software is to use to compute the offset curve.
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Click Offset .
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Type an offset value in the Offset box.
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Specify the offset method and count to use.
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Select, with a mouse click in a graphic view, on which side of the base curve to apply the offset.
A red arrow appears as you move the mouse indicating the direction of the offset.
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Click Boundaries .
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Define the seam boundaries using one or more of the following methods:
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Click Accept .
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If the boundary definition results in two solutions, pick the needed solution using the following procedure:
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Click Finish to place the seam.
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If you do not select boundaries, the software uses the entire length of the base curve to apply to the resulting reference curves.
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A reference curve is always attached to a plate system.