split.cpp File Reference

#include "split.h"
#include "structures.h"
#include "callcpp.h"

Go to the source code of this file.

Functions
	makestructure (newsplit, free_split, SPLIT)
void	delete_split (SPLIT *split)
EDGEPT *	make_edgept (int x, int y, EDGEPT *next, EDGEPT *prev)
void	remove_edgept (EDGEPT *point)
SPLIT *	new_split (EDGEPT *point1, EDGEPT *point2)
void	print_split (SPLIT *split)
void	split_outline (EDGEPT *join_point1, EDGEPT *join_point2)
void	unsplit_outlines (EDGEPT *p1, EDGEPT *p2)

Variables
bool	wordrec_display_splits = 0

Function Documentation

void delete_split

(

SPLIT *

split

)

Definition at line 53 of file split.cpp.

                                { 
  if (split) {
    free_split(split); 
  }
}

EDGEPT* make_edgept	(	int	x,
		int	y,
		EDGEPT *	next,
		EDGEPT *	prev
	)

Definition at line 65 of file split.cpp.

                                                              {
  EDGEPT *this_edgept;
  /* Create point */
  this_edgept = new EDGEPT;
  this_edgept->pos.x = x;
  this_edgept->pos.y = y;
  /* Hook it up */
  this_edgept->next = next;
  this_edgept->prev = prev;
  prev->next = this_edgept;
  next->prev = this_edgept;
  /* Set up vec entries */
  this_edgept->vec.x = this_edgept->next->pos.x - x;
  this_edgept->vec.y = this_edgept->next->pos.y - y;
  this_edgept->prev->vec.x = x - this_edgept->prev->pos.x;
  this_edgept->prev->vec.y = y - this_edgept->prev->pos.y;

  return (this_edgept);
}

makestructure	(	newsplit	,
		free_split	,
		SPLIT
	)

SPLIT* new_split	(	EDGEPT *	point1,
		EDGEPT *	point2
	)

Definition at line 106 of file split.cpp.

                                                 { 
  SPLIT *s;
  s = (SPLIT *) newsplit ();
  s->point1 = point1;
  s->point2 = point2;
  return (s);
}

void print_split

(

SPLIT *

split

)

Definition at line 121 of file split.cpp.

                               { 
  if (split) {
    cprintf ("(%d,%d)--(%d,%d)",
      split->point1->pos.x, split->point1->pos.y,
      split->point2->pos.x, split->point2->pos.y);
  }
}

void remove_edgept

(

EDGEPT *

point

)

Definition at line 90 of file split.cpp.

                                  {
  EDGEPT *prev = point->prev;
  EDGEPT *next = point->next;
  prev->next = next;
  next->prev = prev;
  prev->vec.x = next->pos.x - prev->pos.x;
  prev->vec.y = next->pos.y - prev->pos.y;
  delete point;
}

void split_outline	(	EDGEPT *	join_point1,
		EDGEPT *	join_point2
	)

Definition at line 136 of file split.cpp.

                                                             { 
  EDGEPT *join_point1a;
  EDGEPT *temp2;
  EDGEPT *temp1;

  assert (join_point1 != join_point2);

  temp2 = join_point2->next;
  temp1 = join_point1->next;
  /* Create two new points */
  join_point1a = make_edgept (join_point1->pos.x,
    join_point1->pos.y, temp1, join_point2);

  make_edgept (join_point2->pos.x, join_point2->pos.y, temp2, join_point1);
}

void unsplit_outlines	(	EDGEPT *	p1,
		EDGEPT *	p2
	)

Definition at line 158 of file split.cpp.

                                              { 
  EDGEPT *tmp1 = p1->next;
  EDGEPT *tmp2 = p2->next;

  assert (p1 != p2);

  tmp1->next->prev = p2;
  tmp2->next->prev = p1;

  p1->next = tmp2->next;
  p2->next = tmp1->next;

  delete tmp1;
  delete tmp2;

  p1->vec.x = p1->next->pos.x - p1->pos.x;
  p1->vec.y = p1->next->pos.y - p1->pos.y;

  p2->vec.x = p2->next->pos.x - p2->pos.x;
  p2->vec.y = p2->next->pos.y - p2->pos.y;
}

Variable Documentation

bool wordrec_display_splits = 0

"Display splits"

Definition at line 39 of file split.cpp.