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path: root/support/dktools/dk3bb.c
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/*
Copyright (C) 2012-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk3bb.ctr
*/

/**	@file dk3bb.c The dk3bb module.
*/


#line 81 "dk3bb.ctr"

#include "dk3all.h"
#include "dk3bb.h"





#line 88 "dk3bb.ctr"



void
dk3bb_reset(dk3_bb_t *bb)
{
  

#line 95 "dk3bb.ctr"
  if(bb) {
    bb->xmin = bb->xmax = bb->ymin = bb->ymax = 0.0;
    bb->xused = bb->yused = 0;
  } 

#line 99 "dk3bb.ctr"
}



void
dk3bb_add_x(dk3_bb_t *bb, double x)
{
  

#line 107 "dk3bb.ctr"
  if(bb) {
    if(bb->xused) {
      if(x < bb->xmin) { bb->xmin = x; }
      if(x > bb->xmax) { bb->xmax = x; }
    } else {
      bb->xmin = x; bb->xmax = x; bb->xused = 1;
    } 

#line 114 "dk3bb.ctr"
  } 

#line 115 "dk3bb.ctr"
}



void
dk3bb_add_y(dk3_bb_t *bb, double y)
{
  

#line 123 "dk3bb.ctr"
  if(bb) {
    if(bb->yused) {
      if(y < bb->ymin) { bb->ymin = y; }
      if(y > bb->ymax) { bb->ymax = y; }
    } else {
      bb->ymin = y; bb->ymax = y; bb->yused = 1;
    } 

#line 130 "dk3bb.ctr"
  } 

#line 131 "dk3bb.ctr"
}



int
dk3bb_add_x_width(dk3_bb_t *bb, double x, double r)
{
  double	 x1;		/* Minimum x value. */
  double	 x2;		/* Maximum x value. */
  int		 ec = 0;	/* Error code for mathematical operations. */
  int		 back = 0;
  

#line 143 "dk3bb.ctr"
  if(bb) {
    x1 = dk3ma_d_sub_ok(x, r, &ec);
    x2 = dk3ma_d_add_ok(x, r, &ec);
    if(0 == ec) {
      back = 1;
      dk3bb_add_x(bb, x1);
      dk3bb_add_x(bb, x2);
    }
  } 

#line 152 "dk3bb.ctr"
  return	 back;
}



int
dk3bb_add_y_width(dk3_bb_t *bb, double y, double r)
{
  double	 y1;		/* Minimum y value. */
  double	 y2;		/* Maximum y value. */
  int		 ec = 0;	/* Error code for mathematical operations. */
  int		 back = 0;
  

#line 165 "dk3bb.ctr"
  y1 = dk3ma_d_sub_ok(y, r, &ec);
  y2 = dk3ma_d_add_ok(y, r, &ec);
  if(0 == ec) {
    back = 1;
    dk3bb_add_y(bb, y1);
    dk3bb_add_y(bb, y2);
  } 

#line 172 "dk3bb.ctr"
  return back;
}



void
dk3bb_point(dk3_bb_t *bb, double x, double y)
{
  

#line 181 "dk3bb.ctr"
  if(bb) {
    dk3bb_add_x(bb, x);
    dk3bb_add_y(bb, y);
  } 

#line 185 "dk3bb.ctr"
}



int
dk3bb_point_width(dk3_bb_t *bb, double x, double y, double r)
{

  int		 back = 0;
  

#line 195 "dk3bb.ctr"
  if(bb) {
    if(dk3bb_add_x_width(bb, x, r)) {
      if(dk3bb_add_y_width(bb, y, r)) {
        back = 1;
      }
    }
  } 

#line 202 "dk3bb.ctr"
  return back;
}



void
dk3bb_merge(dk3_bb_t *dbb, dk3_bb_t const *sbb)
{
  

#line 211 "dk3bb.ctr"
  if((dbb) && (sbb)) {
    if(sbb->xused) {
      dk3bb_add_x(dbb, sbb->xmin);
      dk3bb_add_x(dbb, sbb->xmax);
    }
    if(sbb->yused) {
      dk3bb_add_y(dbb, sbb->ymin);
      dk3bb_add_y(dbb, sbb->ymax);
    }
  }
  

#line 222 "dk3bb.ctr"
}