Modify
Global Shape ModelingBend
The GSM Bend command enables you to bend entire shapes composed of solids, surfaces and other entities.
Once the objects and the direction to be bent are selected (the latter is defined by a line, whose length also defines the portion of the selected objects to be actually bent), handles will be displayed to enable you to interactively bend the selected objects. As you drag a handle, a dynamical preview will be displayed, enabling you to control the operation. Bending is performed in a polar reference: instead of dragging handles you can set the values of the length and of the polar angle. Also the length of the line used as a reference for bending can be changed: it defines the portion of the set of selected objects which will actually be modified (one or two "cutting lines" are thus identified passing through the bend line end points).
You can also set the continuity values and other constraints at the end points of the line defining the portion to be bent.
| Restricting the domain of the controlled modification by using a limiting curve By selecting the Use limiting curve check box under More Options, you can restrict the domain of the controlled modification to the zone limited by the curve selected as the Limiting curve. You can choose whether the cutting line must also be affected by the limiting curve or not. If you select the At both endpoints check box, the shape of the cutting line will follow the one of the limiting curve (thus becoming a cutting curve). If you leave the box unchecked the cutting line will be a line, not being affected by the limiting curve shape. An example is available in "Bending a solid using a limiting curve". |
| Associativity To retain links to the component surfaces, so that if you modify a component surface the solid will be modified accordingly, select the Associative Mode check box in the command selection list. |
A specific mechanism for self intersection detection is also active. When a self intersection is detected, the program will display the surfaces delimiting the area within which self intersections occur: if the modified entities are inside that area, self intersections will occur; no self intersection will occur if the modified entities are outside that area.
A set of Quality Checks commands is also available.
