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grf_display_opengl.md

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GRF_DISPLAY_OPENGL
Display a GRF Graph Using OpenGL {#grf_display_opengl-display-a-grf-graph-using-opengl align="center"}

GRF_DISPLAY_OPENGL is a C++ program which reads a GRF file containing information about an abstract graph and displays a plot using OPENGL.

Usage: {#usage align="center"}

grf_display_opengl prefix

where

  • prefix.grf is the GRF file.

Licensing: {#licensing align="center"}

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

Languages: {#languages align="center"}

GRF_DISPLAY_OPENGL is available in a C++ version.

Related Data and Programs: {#related-data-and-programs align="center"}

FERN_OPENGL, a C++ program which uses OpenGL to display the Barnsley fractal fern.

GRAFFITI, a dataset directory which contains 195 abstract graphs, with adjacency and embedding information, stored in the GRF format.

GRAPH_REPRESENTATION, a data directory of examples of ways of representing abstract mathematical graphs

GRF, a data directory which contains a description of the GRF format and some examples.

GRF_DISPLAY, a MATLAB program which reads a GRF file and displays a plot in the MATLAB graphics window.

GRF_IO, a C++ library which reads or writes a GRF file;

GRF_TO_EPS, a FORTRAN90 program which can make an encapsulated PostScript image of a GRF file.

GRF_TO_XYL, a FORTRAN90 program which converts information describing the adjacency and embedding of an abstract graph from GRF to XYL format.

PLOT_POINTS, a FORTRAN90 program which reads a file of point coordinates and makes a PostScript image of them.

SPHERE_XYZ_DISPLAY_OPENGL, a C++ program which reads XYZ information defining points in 3D, and displays a unit sphere and the points, using OpenGL.

XYL, a data directory which contains some examples of the XYL format for 2D points and lines.

XY_DISPLAY_OPENGL, a C++ program which reads an XY file of 2D point coordinates, and displays an image of those points using OpenGL.

XYF_DISPLAY_OPENGL, a C++ program which reads XYF information defining points and faces in 2D, and displays an image using OpenGL.

XYL_DISPLAY_OPENGL, a C++ program which reads XYL information defining points and lines in 2D, and displays an image using OpenGL.

Reference: {#reference align="center"}

  1. Edward Angel,
    Interactive Computer Graphics, a Top-Down Approach with OpenGL,
    Addison-Wesley, 2000,
    ISBN: 0-201-38597-X,
    LC: T385.A514.
  2. Renate Kempf, Chris Frazier, editors,
    OpenGL Reference Manual,
    Fourth Edition,
    Addison-Wesley, 2004,
    ISBN: 032117383X,
    LC: T385.O642
  3. Mason Woo, Jackie Neider, Tom Davis,
    OpenGL Programming Guide,
    Addison-Wesley, 1997,
    ISBN: 0-201-46138-2,
    LC: T385.N435
  4. Richard Wright, Michael Sweet,
    OpenGL Superbible,
    Third Edition,
    Sams, 2004,
    ISBN: 0672326019,
    LC: T385.W73
  5. http://www.opengl.org/
    The official OpenGL site.

Source Code: {#source-code align="center"}

Examples and Tests: {#examples-and-tests align="center"}

COXETER is the Coxeter graph.

List of Routines: {#list-of-routines align="center"}

  • MAIN is the main program for GRF_DISPLAY_OPENGL.
  • CH_EQI is true if two characters are equal, disregarding case.
  • CH_TO_DIGIT returns the integer value of a base 10 digit.
  • DISPLAY generates the graphics output.
  • GRF_DATA_PRINT prints the data of a GRF file.
  • GRF_DATA_READ reads the data of a GRF file.
  • GRF_HEADER_PRINT prints the header of a GRF file.
  • GRF_HEADER_READ reads the header of a GRF file.
  • I4VEC_MAX returns the value of the maximum element in an I4VEC.
  • I4VEC_MIN returns the value of the minimum element in an I4VEC.
  • MYINIT initializes OpenGL state variables dealing with viewing and attributes.
  • R8_MAX returns the maximum of two R8.
  • R82VEC_MAX returns the maximum value in a R82VEC.
  • R82VEC_MIN returns the minimum value in a R82VEC.
  • S_CAT concatenates two strings to make a third string.
  • S_LEN_TRIM returns the length of a string to the last nonblank.
  • S_TO_I4 reads an I4 from a string.
  • S_TO_I4VEC reads an I4VEC from a string.
  • S_TO_R8 reads an R8 from a string.
  • S_TO_R8VEC reads an R8VEC from a string.
  • S_WORD_COUNT counts the number of "words" in a string.
  • TIMESTAMP prints the current YMDHMS date as a time stamp.
  • XYL_DATA_PRINT prints the data of an XYL file.
  • XYL_HEADER_PRINT prints the header of an XYL file.

You can go up one level to the C++ source codes.

Last revised on 13 January 2009.