The faces of the mesh returned by the hullMesh
function are now given by the vertex indices of this mesh, while in the
previous versions they were given by the vertex indices of the original
vertices (those for which the convex hull is computed).
The hullMesh function can now return a ‘rgl’
mesh.
The package does no longer depend on the ‘Morpho’ package.
New argument alpha in the plotConvexHull3d
function, to control the transparency of the faces.
Fixed a small mistake in the C code.
Replaced sprintf with snprintf in the C
code.
New function hullMesh to extract the vertices and
the faces of a 3d convex hull.
Updated the vertices of Leonardo da Vinci’s 72-sided sphere; the new ones are more accurate.
New function dihedralAngles which computes the
dihedral angles of a 3d convex hull.
New argument angleThreshold in the
plotConvexHull3d function. Edges whose corresponding
dihedral angle is greater than angleThreshold are removed
from the plot.
cxhullEdges, which computes only the
vertices and the edges of a convex hull (for speed gain and less memory
consumption).New function hullSummary, which returns a summary of
a 3D triangulated convex hull.
Now, the facesColor argument of
plotConvexHull3d can be a vector, allowing to assign
different colors to the faces. See the README file for
examples.
The plotConvexHull3d function has a new argument
palette; it allows to decorate the faces with a color
gradient.
Updated the README file.
New function plotConvexHull3d, to easily plot a 3D
convex hull, with a correct orientation of the facets.
A couple of other new functions, e.g. EdgesAB, which
returns a matrix representing the edges and indicating which edges are
on the border of the convex hull. These functions are used by
plotConvexHull3d, they are not of great interest
otherwise.
orientation, indicating the
facet orientation.