Intersect with Model
Intersect with Model creates edges where 3D geometry and volumes that overlap. It can be used to help combine objects, subtract volumes, or intersect geometry. It is particularly useful when you are defining surface areas, such as walks and roads, on simulated terrain. Surface area volumes are pulled through a terrain model and then intersected with the terrain model. The surface volume is then deleted, and the outline of the surface is retained on the terrain (Fig. 12.28 through Fig. 12.31).
There are three ways to use Intersect:
3 It can be used on an entire model with nothing selected (right-click the context menu and choose Intersect > Intersect with Model).
3 It can be used only on selected geometry (right-click the context menu and choose Intersect > Intersect Selected).
3 It can be used to add edges to intersecting groups and components (right-click the context menu and choose Intersect > Intersect Context).
Fig. 12-28: Intersect with Model being performed on a cube and sphere. The sphere will be subtracted from the cube. Notice that neither object is a group or component.
Fig. 12-28: Intersect with Model being performed on a cube and sphere. The sphere will be subtracted from the cube. Notice that neither object is a group or component.
- Fig. 12-29: The sphere is deleted from the cube. The face of the sphere remains on the cube where the two objects intersected.
- Fig. 12-30: Intersect with Model being performed on a cube and a sphere component
Fig. 12-31: Because the sphere was a component, once it's deleted, the geometry of the sphere does not remain to fill the void in the cube.
Fig. 12-31: Because the sphere was a component, once it's deleted, the geometry of the sphere does not remain to fill the void in the cube.
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