home *** CD-ROM | disk | FTP | other *** search
- /* $Id: x05c.c,v 1.7 1994/06/30 17:57:15 mjl Exp $
- * $Log: x05c.c,v $
- * Revision 1.7 1994/06/30 17:57:15 mjl
- * All C example programs: made another pass to eliminate warnings when using
- * gcc -Wall. Lots of cleaning up: got rid of includes of math.h or string.h
- * (now included by plplot.h), eliminated redundant casts, put in more
- * uniform comments, and other minor changes.
- *
- * Revision 1.6 1994/03/30 07:21:48 mjl
- * Changes to all C example programs: special handling for malloc re: header
- * files eliminated, include of stdio.h and stdlib.h eliminated (now done
- * by plplot.h), include of "plplot.h" changed to <plplot.h> to enable
- * simpler builds by the general user, some cleaning up also.
- */
-
- /* x05c.c
-
- Histogram demo.
- */
-
- #include <plplot.h>
-
- #define NPTS 2047
-
- /*----------------------------------------------------------------------*\
- * main
- *
- * Draws a histogram from sample data.
- \*----------------------------------------------------------------------*/
-
- int
- main(int argc, char *argv[])
- {
- int i;
- PLFLT data[NPTS], delta;
-
- /* Parse and process command line arguments */
-
- (void) plParseInternalOpts(&argc, argv, PL_PARSE_FULL);
-
- /* Initialize plplot */
-
- plinit();
-
- /* Fill up data points */
-
- delta = 2.0 * 3.141592654 / (double) NPTS;
- for (i = 0; i < NPTS; i++)
- data[i] = sin(i * delta);
-
- plcol(1);
- plhist(NPTS, data, -1.1, 1.1, 44, 0);
- plcol(2);
- pllab("#frValue", "#frFrequency",
- "#frPLplot Example 5 - Probability function of Oscillator");
-
- plend();
- exit(0);
- }
-