axis.c File Reference

This routine is used to generate an axis for a graph. It draws an axis with a linear scale, places tic marks every inch, labels the tics, and uses the supplied title for the axis. More...

#include "common.h"
#include <stdio.h>
#include <math.h>
#include <strings.h>
#include "machine.h"
#include "vmath.h"
#include "plot3.h"

Include dependency graph for axis.c:

Go to the source code of this file.

Defines
#define	TICK_YLEN   (char_width)
	tick is 1 character height
#define	NUM_YOFF   (3*char_width)
	numbers offset from line
#define	TITLE_YOFF   (5*char_width)
	title offset from line
Functions
void	tp_3axis (FILE *fp, char *string, fastf_t *origin, fastf_t *rot, double length, int ccw, int ndigits, double label_start, double label_incr, double tick_separation, double char_width)
void	PL_FORTRAN (f3axis, F3AXIS)

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Detailed Description

This routine is used to generate an axis for a graph. It draws an axis with a linear scale, places tic marks every inch, labels the tics, and uses the supplied title for the axis.

The strategy behind this routine is to split the axis into SEGMENTS, which run from one tick to the next. The origin of the first segment (x,y), the origin of the bottom of the first tick (xbott,ybott), and the origin of the first tick label (xnum,ynum) are computed along with the delta x and delta y (xincr,yincr) which describes the interval to the start of the next tick.

Author:

Michael John Muuss
August 01, 1978

Source -

SECAD/VLD Computing Consortium, Bldg 394
The U. S. Army Ballistic Research Laboratory
Aberdeen Proving Ground, Maryland 21005-5066

Definition in file axis.c.

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Define Documentation

#define TICK_YLEN   (char_width)

tick is 1 character height Definition at line 70 of file axis.c. Referenced by tp_3axis().

#define NUM_YOFF   (3*char_width)

numbers offset from line Definition at line 71 of file axis.c. Referenced by tp_3axis().

#define TITLE_YOFF   (5*char_width)

title offset from line Definition at line 72 of file axis.c. Referenced by tp_3axis().

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Function Documentation

void tp_3axis (  FILE *  fp, char *  string, fastf_t *  origin, fastf_t *  rot, double  length, int  ccw, int  ndigits, double  label_start, double  label_incr, double  tick_separation, double  char_width )

Parameters: string  label for axis length  length of axis ccw  0=clockwise, !0=counter clockwise (ccw) ndigits  # digits wide label_start  label starting value label_incr  label increment between ticks tick_separation  plot distance between ticks char_width  character scale (size) Definition at line 78 of file axis.c. References bn_mat_mul(), MAT4X3PNT, MAT4X3VEC, MAT_DELTAS, MAT_IDN, NEAR_ZERO, NUM_YOFF, pdv_3cont(), pdv_3move(), SMALL, TICK_YLEN, TITLE_YOFF, tp_3symbol(), VDOT, VJOIN1, VMOVE, VSCALE, VSET, VSUB2, X, Y, and Z. Here is the call graph for this function:

void PL_FORTRAN (  f3axis  , F3AXIS  )

Definition at line 191 of file axis.c. References bn_mat_angles(), fp, length, MAT_IDN, string, tp_3axis(), and VSET. Here is the call graph for this function:

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