Then move the cursor into the lymb rendering window to generate a message. The results of the munc calculation will be displayed in the lymb command window as well as appended to the file munc.out in the directory that you started lymb from. Shape index is the normalized shape index. This is a non-dimensional parameter calculated by dividing the cube root of the volume by the square root of the area divided by 2.199. This normalizes the value to 1.0 for a sphere.
Average area is the total area divided by the number of triangles.
Munc x, y, z is the number of normals that are maximum in each of the three components. Volume in x, y, z is the volume calculated in each of the three directions. This technique uses the divergence theorem to convert the volume calculation into an area calculation. The areas of each triangle are projected onto each of the x, y and z axes and summed. This implementation was motivated by a Usenet Newsgroup posting requesting and algorithm to calculate volumes of polyhedral objects.