magic/bplane/bpUtils.c

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/* bpUtils.c --
 *
 * shared low-level routines for this module.
 *
 */

#include <stdio.h>
#include "utils/utils.h"
#include "database/database.h"
#include "utils/geometry.h"
#include "bplane/bplaneInt.h"


/*
 * ----------------------------------------------------------------------------
 * bpRectDim --
 *
 * return dimension of rectangle in xDir
 *
 * ----------------------------------------------------------------------------
 */
int bpRectDim(Rect *r, bool xDir)
{
  return xDir ? r->r_xtop - r->r_xbot : r->r_ytop - r->r_ybot;
}

/*
 * ----------------------------------------------------------------------------
 * bpBinIndices --
 *
 * compute bin indices corresponding to area.
 *
 * ----------------------------------------------------------------------------
 */
static __inline__ void
bpBinIndices(Rect area,        /* area */
	     Rect binArea,     /* lower left corner of bin system */
	     int indexBits,
	     int dim,
	     bool  xDir,       /* TRUE for x bin, FALSE for y bin */
	     int *min,         /* results go here */
	     int *max)
{
  int ref, coord;
  int index;

}