Compute the 3d convex hull of a point cloud.

*Access
methods*

8 **Toolbar**:

8 **Menu**:
ComputationalCAD 3d convex
hull

7 **Command
entry**: CC:HULL:3D

Dialog

**Select points: **Select at least four non-coplanar points for which to
compute the 3d convex hull.

Notes

The 3d convex hull of a set of point encloses all points with minimal surface area. The computation of the 3d convex hull requires at least four non-coplanar points (for which the convex hull is a tetrahedron then).

Use Generate points on primitives and Generate points on solids to generate input data.

Example

Figure 45: 3d convex hull of 1000 random points in a cube (wireframe)

Figure 46: 3d convex hull of 1000 random point in a cube (rendered)

Command line prompt:

3d convex hull properties:

--------------------------

Number of vertices on hull: 140

Number of invalid vertices: 0

Number of faces on hull : 276

Number of degenerate faces: 0

Hull surface area : 2487444.0086

Hull volume : 287626283.7002

Center of mass : (2114.3216, 1094.4953, 0.0000)