ModifySurface
Control Points
The Surface through Control Points command provides an environment within which you can modify surfaces by governing their control points.
In the Mode drop-down list you can select the type of action to perform.
Edit control points | Enables you to modify existing surfaces by handling their control points. There are a number of actions which can be easily performed on selected surfaces.
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Add control points | Enables you to add control points to existing surfaces, thus making the surfaces more flexible. |
You need to select the surfaces to be modified for the Surfaces selector.
Internal Undo/Redo Every time you move a control point, it is considered as an achieved position of the curve. An internal Undo button ( ![]() As soon as you click the Undo button, your changes will be undone and the Redo button ( ![]() Virtual mirroring in previews When the virtual mirroring mode is enabled (Enable check box selected in the View- Advanced category of the Document Properties), the preview of the resulting curves/surfaces will be displayed as mirrored. The control points will not be mirrored, because only the true objects can be modified and/or constrained. Deselection It is not possible to deselect a single surface; within the editor the active objects are displayed as previews and thus not selectable. This is why you can only reset the entire selection and not the single “elements”. |
If the selected surface is not a NURBS, and the Ask before converting check box is selected, then you will be asked to convert it into a NURBS before applying the command. The conversion precision is controlled by the Tolerance: parameter.
A set of Quality checks is also available, enabling you to study the shape of the resulting surface.