TWOD_PLOTC
Contour Plots for 2D Finite Elements

TWOD_PLOTC is a MATLAB function which produces a contour plot of scalar data defined on a 2D finite element grid, by Jeff Borggaard.

Related Data and Programs:

FEM2D, a data directory which contains a description of the data files that can be used to describe a 2D finite element model.

TRIANGULATION_ORDER3_CONTOUR, a MATLAB program which makes contour plot of scattered data, or of data defined on an order 3 triangulation.

TRIANGULATION_ORDER6_CONTOUR, a MATLAB program which can make contours of the solution.

TWOD, a MATLAB library which contains functions useful for 2D finite element calculations.

TWOD_TO_VTK, a MATLAB program which accepts computational data from a 2D finite element fluid flow program and writes it to a VTK "legacy" file for postprocessing by PARAVIEW.

TWOD_TO_VTU, a MATLAB program which accepts computational data from a 2D finite element fluid flow program and writes it to a VTK unstructured grid file for postprocessing by PARAVIEW.

Author:

Jeff Borggaard, Virginia Tech.

Source Code:

• twod_plotc.m produces a filled contour plot of triangular finite element data.

Examples and Tests:

ELL is an L-shaped region meshed by 3-node triangles, with the data U=X^2+Y^2 to be contoured.

• ell_nodes.txt the nodes.
• ell_elements.txt the elements.
• ell_values.txt the values to be contoured.
• ell.png the contour plot.

LAKE is an irregularly region meshed by 3-node triangles

• lake_nodes.txt the nodes.
• lake_elements.txt the elements.
• lake_values.txt the values to be contoured.
• lake.png the contour plot.

SQUARE is a square region meshed by 6-node triangles

• square_nodes.txt the nodes.
• square_elements.txt the elements.
• square_values.txt the values to be contoured.
• square.png the contour plot.

You can go up one level to the MATLAB source codes.