Reshaping NURBS Surfaces

The Reshape tool, located in the Basic palette, can manipulate NURBS surface control points and reshape NURBS surfaces. For example, a dome or bell-curve effect can be created by manipulating the vertices.

This tool can potentially create surfaces which cannot be further manipulated in the 3D Power Pack. See Surface Geometry Requirements.

Reshape_tool00069.png 

To reshape a NURBS surface:

  1. Select the NURBS surface to reshape.

  2. Click the Reshape tool from the Basic palette.

  3. Select the mode from the Tool bar.

    3DReshape_modes.png 

    Mode
    Description

    Move NURBS Surface Vertex

    Changes the position of the selected vertex or vertices only

    Move NURBS Surface U Vertices

    Changes the position of all vertices in a row in the U direction

    Move NURBS Surface V Vertices

    Changes the position of all vertices in a row in the V direction

    Working Plane Constrain

    Moves the selected vertex or vertices on a working plane

    X-axis Constrain

    Moves the selected vertex or vertices along the X axis

    Y-axis Constrain

    Moves the selected vertex or vertices along the Y axis

    Z-axis Constrain

    Moves the selected vertex or vertices along the Z axis

    To select one vertex or row of vertices, position the cursor over one of the NURBS surface vertices. When the cursor is over a vertex, the standard arrow cursor changes to an unfilled, four-way arrow.

    Reshape_4.png 

    To select several vertices at one time, click with the Shift key pressed or click and drag to create a marquee around the desired vertices.

    If several vertices are selected, position the cursor over one of them.

  4. Click-drag the mouse to move the vertex or vertices.

  5. Release the mouse at the desired location.

Objects_edit200072.png 

Functionality similar to the Reshape tool is available from the Object Info palette Shape tab; see Editing Vertex-Based Objects.

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NURBS Surfaces

Reshaping Objects

Direct Modeling with the Push/Pull Tool

 

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