rblock dilate command
Syntax
- rblock dilate <keyword> f <keyword> <range>
Primary keywords:
Change the rigid block rounding by dilation. A rigid block is represented by a core shape that is composed of {linear facets in 2D; triangular facets in 3D}. The core shape is convex, closed and manifold. When rounding is nonzero, the core shape is expanded in all directions by a {circle in 2D; sphere in 3D} of a specified radius with center passing along all points on the exterior of the core shape. The value of the rounding corresponds to the radius of this expansion {circle in 2D; sphere in 3D}. Rounding can result in fewer contacts for highly packed models and in faster contact resolution.
Dilating a rigid block means that the core shape remains unchanged and rounding as added to the original core shape. In other words, {corners in 2D; edge and corners in 3D} are rounded and each facet plane is moved outward (i.e., away from the centroid) in the facet normal direction by the rounding distance. This results in a larger rigid block. By default the inertial properties are adjusted to those of a convex {polygon in 2D; polyhedra in 3D} whose faces have been translated outward in the facet normal direction by the rounding distance. If the rigid block is already rounded this rounding is added to the old value.
- keep-inertial
Do not adjust the inertial properties as a result of dilation. This may be advantageous when the rounding distance is small.
- relative
The degree of rounding is computed as the product of f and the radius of a {circle in 2D; sphere in 3D} with the same size as the rigid block.
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