a MATLAB program which
calls quad_mesh() to carry out operations involving meshes of quadrilaterals.
The computer code and data files described and made available on this web page
are distributed under
the GNU LGPL license.
Related Data and Programs:
a MATLAB library which
handles meshes of quadrilaterals over a 2D region;
writes data to files.
EXAMPLE1 is a mesh made up of squares of uniform size. The squares
are arranged in a grid with a few irregularities, however. In particular,
there is an interior hole.
EXAMPLE2 is a mesh made up of quadrilaterals that are "trying" to tile a
semicircle. The row of elements that touches the origin is degenerate, and
are essentially triangles. The elements vary in area.
SAMPLE_QUAD demonstrates how a single quadrilateral can be randomly sampled.
node coordinates for random sample points in a quadrilateral.
a PNG image of the random sample points in a quadrilateral.
Last revised on 18 February 2019.