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Click Blend
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The Blend Definition dialog box appears. |
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Successively select the first curve and its support, then
the second curve and its support.
These can be surface edges, or any curve.
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Set the continuity type using the Basic tab.
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Check Trim first support/Trim second support, on one or
both support surfaces to trim them by the curve and assemble them to the
blend surface.
By default the blend surface borders are tangent to the support
surface borders. |
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You can also specify whether and where the blend boundaries
must be tangent to the supports boundaries:
- Both extremities: the tangency constraint applies at
both ends of the curve
- None: the tangency constraint is disregarded
- Start extremity only: the tangency constraint applies at
the start point of the curve only
- End extremity only: the tangency constraint applies at
the end point of the curve only
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The Start and End extremities are defined according to the arrows
in the blended surface's preview. |
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Set the tension type using the Tension tab.
It defines the tension of the blend at its limits and
can be set for each limit independently
It can be Constant or Linear. A third tension type is available:
S Type. It enables to set a variable
tension. |
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Click OK to create the blended surface.
The surface (identified as Blend.xxx) is added to the
specification tree. |
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- Selecting a support is not compulsory.
- You can create closing points using the contextual menu on the
First or Second closing point fields in the
dialog box, or using the contextual menu directly on one of the
selected curves.
- Use the Replace, Remove, or Reverse buttons, to manage the
selected elements (curves, support, closing and coupling points).
- You can also use the contextual menu on the texts displayed on
the geometry to set the continuities, trim the supports or manage
the curves and support in general.
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