QUAD_MESH_ORDER1_DISPLAY
Plot Piecewise Constant Data on a Quadrilateral Mesh

QUAD_MESH_ORDER1_DISPLAY, a MATLAB program which can make a 3D plot of piecewise constant data defined on a quadrilateral mesh.

The input from the user includes:

• NODE_XY(1:2,1:NODE_NUM), a list of the coordinates of nodes;
• ELEMENT_NODE(1:4,1:ELEMENT_NUM), a list of the nodes that make up each element in the mesh;
• VALUE(1:TRIANGLE_NUM), the value associated with each element;

Usage:

quad_mesh_order1_display ( 'prefix' )

• 'prefix'_nodes.txt, lists the node coordinates;
• 'prefix'_elements.txt lists the indices of nodes that form elements.
• 'prefix'_values.txt lists the value to be assigned each element.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

QUAD_MESH_ORDER1_DISPLAY is available in a MATLAB version.

Related Data and Programs:

BEZIER_SURFACE_DISPLAY, a MATLAB program which reads two files defining a Bezier surface and displays it within MATLAB.

MESH_DISPLAY, a MATLAB program which reads data defining a polygonal mesh and displays it, with optional numbering.

OBJ_DISPLAY, a MATLAB program which reads an OBJ file defining a 3D object and displays it within MATLAB.

PLY_DISPLAY, a MATLAB program which displays an image of a 3D graphics file in PLY format;

POLYGONAL_SURFACE_DISPLAY, a MATLAB program which reads two files defining a polygonal surface and displays it within MATLAB.

QUAD_MESH, a MATLAB library which handles meshes of quadrilaterals over a 2D region;

QUAD_MESH_ORDER1, a data directory which defines a format for storing meshes of quadrilaterals over a 2D region, and an associated data value which is constant over each quadrilateral element.

quad_mesh_order1_display, a MATLAB program which plots piecewise constant data associated with a mesh of quadrilaterals;

quad_mesh_order1_display_test

QUAD_SURFACE_DISPLAY, a MATLAB program which reads files defining a 3D quadrilateral mesh surface and displays it within MATLAB.

STLA_DISPLAY, a MATLAB program which reads an ASCII STL file defining a 3D object and displays it within MATLAB.

TET_MESH_DISPLAY, a MATLAB program which reads files defining a tet mesh and displays an image within MATLAB.

TRI_SURFACE_DISPLAY, a MATLAB program which reads data defining a triangular mesh of a 3D surface and displays it.

TRIANGULATION_ORDER1_DISPLAY, a MATLAB program which plots piecewise constant data associated with a triangulation;

Source Code:

• quad_mesh_order1_display.m, displays a 3D plot of piecewise data on a quadrilateral mesh.
• timestamp.m, prints the YMDHMS date as a timestamp.