Skeleton Curve : Options and Results

Access: Open this function from the following location:

  • Select Wireframe > Derived Curves > Skeleton Curve from the menu bar.

Find the skeleton (middle curve) of selected 2D contours or planar faces. For planar faces, the system creates a skeleton curve based on the boundary edges of the selected face.

Required Step 1

  1. Pick closed contour(s) or planar face(s).

  2. Click <Exit><Exit>(middle mouse button) to proceed to the next step.

Required Step 2

  1. Set the parameter values.

    1. If closed contours were selected in step 1, the skeleton (middle curve) of the selected 2D contours is displayed.

    2. If planar faces were selected in step 1, the system creates a skeleton curve based on the boundary edges of the selected face.

    3. If adjacent faces with the same plane are selected, a single skeleton curve is created.

    4. If non-adjacent faces or faces which do not share the same plane are selected, different skeleton curves will be created on each selected face.

    Parameters

    Ignore Sharp Edges /
    Include Sharp Edges

    This toggle option allows you to ignore or include sharp edges when creating the middle curve. A sharp edge is defined as ≤ 160°.

    Ignore Sharp Edges

    Do not extend the middle curve to sharp edges. See the examples below. This is the default option.

    Include Sharp Edges

    Extend the middle curve to sharp edges. See the examples below.

    ExamplesExamples

    Ignore Sharp Edges

    Include Sharp Edges

    Boundary Gap

    Set a gap between the middle curve and the boundary of the selected contour.
    Default = 0 mm
    Min: 0 mm
    Max: 1000 mm depending on the bounding box

    ExamplesExamples

    Ignore Sharp Edges

    Include Sharp Edges

    Boundary
    Gap = 0

    Boundary
    Gap = 0.7

    Boundary
    Gap = 0

    Boundary Gap
    = 0.7

    Chain

    This is a dropdown list of the following options to define how the skeleton curve is to be created. See the example images below.

    Exploded Segments

    Each curve segment that reaches a split vertex is created as a separate segment.

    Chain

    For each curve segment, the system creates the longest possible continuous segments. This is the default option.

    Single Wire

    All curve segments are combined into a single wire.

    ExamplesExamples

    Exploded Segments

    Chain

    Single Wire

  2. The skeleton (mid) curve(s) of the selected geometry are displayed with the following parameters.
     

     

    If faces which do not share the same plane are selected, different skeleton curves will be created on each selected face, as shown in the image below.

  3. Click OKOK or ApplyApply in the Feature Guide to complete the function.

When completed, the Skeleton Curve feature will appear in the Feature Tree.

Some functionality may be dependent on the product package. Contact your Reseller if you require a license.