DRAWCGM
A Graphics Library
with output in CGM, PS or X11

DRAWCGM is a collection of C and FORTRAN routines for creating graphics. The library is capable of creating PostScript, CGM, X Windows and other graphics output.

Source Code:

FORTRAN source code files you may copy include:

• drawcgm.f90, the FORTRAN source code;
• drawcgm.csh, standard compilation script;
• drawcgm_ps.csh, PostScript-only compilation script;

Color table files you may copy include:

• colors.dat, goes from red to blue;
• redblu.dat, goes from red to blue;

Lower level files you may copy include:

• carray.c;
• cgm_clip.c;
• cgm_clip.h;
• cgm_textem.c;
• cgm_textem.h;
• cgmb.c;
• cgmgen.c;
• cliptest.c;
• defs.h;
• devices.c;
• drvcla.c;
• emul.c;
• hload.c;
• hload.h;
• io.c;
• ps.c;
• tty.c;
• unix_defs.h;
• utils.c;
• xws_cla.c;
• xws_color.c;
• xws_color.h;
• xws_defs.h;
• xws_delim.c;
• xws_fill.h;
• xws_marker.c;
• xws_polygon.c;
• xws_polyline.c;
• xws_setup.c;
• xws_text.c;

Examples and Tests:

You may copy files for test problem 1, including:

• drawcgm_prb1.f90, a sample calling program;
• drawcgm_prb1.csh, run test 1 with DRAWCGM;
• drawcgm_prb1.out, output from the test;
• drawcgm_prb1.cgmb, the CGMB output graphics file.

You may copy files for test problem 2, including:

• drawcgm_prb2.f90, a sample calling program;
• drawcgm_prb2.csh, run test 2 with DRAWCGM;
• drawcgm_prb2.out, output from the test;
• drawcgm_prb2.cgmb, the CGMB output graphics file.

You may copy files for test problem 3, including:

• drawcgm_prb3.f90, a sample calling program;
• drawcgm_prb3.csh, run test 3 with DRAWCGM;
• drawcgm_prb3.out, output from the test;
• drawcgm_prb3.cgmb, the CGMB output graphics file.

You may copy files for another test problem, including:

• cgmtest.csh;
• cgmtest.f90;
• cgmtest2.c;
• cgmtest.out, output from the test;
• cgmtest.cgmb, the CGMB output graphics file.

List of Routines:

• CGRID draws evenly spaced Cartesian X and Y grid lines.
• CIRCLE draws an open or filled circle of a given radius.
• CLRRCT clears a rectangular area of the display.
• CPYINT copies the contents of one integer vector into another.
• DEVICE sets the output device.
• DRAWIT displays a cell array.
• DRWPIX displays a cell array, and does housekeeping.
• FILCLR sets the color of filled polygons.
• GETCLR gets the red, green, and blue values of a given color index.
• GETCTB reads a color table from a file FNAME.
• GRFCLS is the graphics shutdown routine.
• GRFINI is the graphics initializer.
• HORCBR draws a horizontal color bar.
• HORFLP inverts the image left-to-right, in place.
• IMGMSK masks out regions of a pixel array.
• INTERP computes a pixel array by interpolation.
• LABEL draws simple labels.
• LINCLR sets the color of polylines.
• LINWID sets the width of polylines.
• MOVCGM moves to a user-specified point with the "plotting pen" up.
• DRWCGM resumes drawing from the last point defined by MOVCGM or DRWCGM.
• MRKCLR sets the color of polymarkers.
• MRKSIZ sets the size of polymarkers.
• MRKTYP sets the marker type of polymarkers.
• NEWFRM ends a frame, and begins the next.
• OUTFIL sets the output graphics file name.
• PLTBAR draws a graph of the color intensities of the color bar.
• PLYGON draws polygons.
• PLYLIN draws polylines.
• PLYMRK draws polymarkers.
• PUTCTB dumps the current working color table.
• RDCLIS reads a color list in a file.
• RTOINT converts a real array to integers, given ranges.
• SETCLR sets the red, green and blue values of a given color.
• SETCTB calculates a full set of color table entries.
• SETSCL sets the coordinate system for drawing.
• SPLIE2 is a utility routine for spline calculations.
• SPLINE computes a cubic spline through given data.
• STPAUS sets the 'pause' flag.
• STPSPL does spline interpolation for ordered points.
• STRLIN expands a real array by linear interpolation.
• STRSPL expands a real array using bicubic natural spline interpolation.
• UNPAUS clears the 'pause' flag.
• VRTCBR draws a vertical color bar.
• VRTFLP inverts the image top-to-bottom, in place.
• WINFRM draws a window frame in the (full-screen) display window.
• WRCLIS writes color data to a file.

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