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What's new ST6 - Tangency control handles

Surface

Tangency control handles
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Use the tangency control handles to specify the tangency condition at curve and surface boundaries. These handles provide a direct method to manipulate the shape of a surface by specifying different tangency conditions.
The BlueSurf, Bounded, Redefine, Lofted, and Key-point Curve commands support various continuity and tangency conditions. The tangency control handles provide a common method for each of these commands to control the end conditions.
The handle has two elements:
  • Tangency control handle (1) - Drop-list to control the type of tangent condition
  • Tangent magnitude handle (2) - Drag handle which also supports a magnitude dynamic input box (3).
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There are two tangent magnitude handle options that are available when creating and editing a bluesurf surface, loft protrusion, or keypoint curve.
  • Multiple tangent magnitudes (1)
    This option exposes all magnitude handles for the section. You can edit any magnitude handle and the remaining handles are unchanged.
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  • Single tangent magnitude (2)
    This option exposes a common magnitude handle for the section. You edit a common magnitude handle and the remaining section magnitude handles have the same value.
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You can drag the handles or type a magnitude value in the dynamic input box.

Tangency handle display
Tangency handle display can be turned on or off in each command.
  • BlueSurf command -- Use the on or off button in the BlueSurf Visualization dialog box.
  • Bounded command -- Use the Hide Tangency Control Handles button Posted Image on the Bounded command bar. The button appears while in the Face Tangency step.
  • Redefine command -- Use the Hide Tangency Control Handles button Posted Image on the Redefine command bar. The button appears while in the Tuning step.
  • Keypoint Curve command -- Use the Hide Tangency Control Handles button Posted Image on the Keypoint Curve command bar. The button appears while in the End Conditions step.
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