triangulation_order1_display, an Octave code which can make a 3D plot of piecewise constant (PWC) data defined on a mesh of triangles.
The input from the user includes:
triangulation_order1_display ( 'prefix' )where 'prefix' is the common file prefix:
The computer code and data files described and made available on this web page are distributed under the MIT license
triangulation_order1_display is available in a MATLAB version and an Octave version.
triangulation_order1_display_test
bezier_surface_display, an Octave code which reads two files defining a Bezier surface and displays it.
mesh_display, an Octave code which reads data defining a polygonal mesh and displays it, with optional numbering.
obj_display, an Octave code which reads an obj file defining a 3d object and displays it.
polygonal_surface_display, an Octave code which reads two files defining a polygonal surface and displays it.
pwc_plot, an Octave code which converts the definition of a piecewise constant function into plottable data.
quad_mesh_order1_display, an Octave code which plots piecewise constant data associated with a mesh of quadrilaterals;
quad_surface_display, an Octave code which reads files defining a 3d quadrilateral mesh surface and displays it.
stla_display, an Octave code which reads an ASCII STL file defining a 3d object and displays it.
tet_mesh_display, an Octave code which reads files defining a tet mesh and displays an image.
tri_surface_display, an Octave code which reads data defining a triangular mesh of a 3d surface and displays it.
triangulation, an Octave code of routines for carrying out various operations on order 3 ("linear") or order 6 ("quadratic") triangulations.
triangulation_node_to_element, an Octave code which reads files describing a set of nodes, their triangulation, and the value of one or more quantities at each node, and outputs a file that averages the quantities for each element. this operation in effect creates an "order1" finite element model of the data.
triangulation_order3_contour, an Octave code which makes a contour plot of a scalar quantity that is defined on a finite element mesh of three-node triangles.
triangulation_order6_contour, an Octave code which makes a contour plot of a scalar quantity that is defined on a finite element mesh of six-node triangles.
triangulation_orient, an Octave code that reads data defining a triangulation, makes sure that every triangle has positive orientation, and if not, writes a corrected triangle file.
triangulation_plot, an Octave code which plots the nodes and triangles that make up a finite element mesh.
triangulation_quad, an Octave code which estimates the integral of a function over a triangulated region.
triangulation_refine, an Octave code which reads data defining a triangulation, replaces each triangle by four congruent smaller ones, and writes the new triangulation information to a file.