curve.c File Reference

Private part of the path and curve data structures. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "potracelib.h"
#include "lists.h"
#include "curve.h"

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Defines
#define	SAFE_MALLOC(var, n, typ)   if ((var = (typ *)malloc((n)*sizeof(typ))) == NULL) goto malloc_error
Typedefs
typedef dpoint_t	dpoint3_t [3]
Functions
path_t *	path_new (void)
	Create a new path.
static void	privcurve_free_members (privcurve_t *curve)
	Free the members of the given curve structure.
void	path_free (path_t *p)
	Free a path.
void	pathlist_free (path_t *plist)
	Free a pathlist.
int	privcurve_init (privcurve_t *curve, int n)
	Initialize the members of the given curve structure to size m.
void	privcurve_to_curve (privcurve_t *pc, potrace_curve_t *c)
	Copy private to public curve structure.

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Detailed Description

Private part of the path and curve data structures.

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Copyright.

PCB, interactive printed circuit board design

Copyright (C) 2001-2007 Peter Selinger.

This file is part of Potrace. It is free software and it is covered by the GNU General Public License. See the file COPYING for details.

Definition in file curve.c.

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Define Documentation

#define SAFE_MALLOC	(		var,
			n,
			typ
	)		if ((var = (typ *)malloc((n)*sizeof(typ))) == NULL) goto malloc_error

Definition at line 28 of file curve.c.

Referenced by path_new(), and privcurve_init().

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Typedef Documentation

typedef dpoint_t dpoint3_t[3]

Definition at line 114 of file curve.c.

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Function Documentation

void path_free

(

path_t *

p

)

Free a path.

Leave errno untouched.

Definition at line 77 of file curve.c.

References potrace_privpath_s::curve, potrace_privpath_s::lon, potrace_privpath_s::ocurve, potrace_privpath_s::po, potrace_path_s::priv, privcurve_free_members(), potrace_privpath_s::pt, and potrace_privpath_s::sums.

Referenced by bm_to_pathlist(), and pathlist_free().

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path_t* path_new

(

void

)

Create a new path.

Definition at line 37 of file curve.c.

References potrace_path_s::priv, and SAFE_MALLOC.

Referenced by findpath().

void pathlist_free

(

path_t *

plist

)

Free a pathlist.

Leave errno untouched.

Definition at line 102 of file curve.c.

References list_forall_unlink, and path_free().

Referenced by gcode_do_export().

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static void privcurve_free_members

(

privcurve_t *

curve

)

[static]

Free the members of the given curve structure.

Leave errno unchanged.

Definition at line 61 of file curve.c.

References privcurve_s::alpha, privcurve_s::alpha0, privcurve_s::beta, privcurve_s::c, privcurve_s::tag, and privcurve_s::vertex.

Referenced by path_free().

int privcurve_init	(	privcurve_t *	curve,
		int	n
	)

Initialize the members of the given curve structure to size m.

Returns:

0 on success, 1 on error with errno set.

Definition at line 122 of file curve.c.

References privcurve_s::alpha, privcurve_s::alpha0, privcurve_s::beta, privcurve_s::c, n, privcurve_s::n, SAFE_MALLOC, privcurve_s::tag, and privcurve_s::vertex.

Referenced by adjust_vertices(), and opticurve().

void privcurve_to_curve	(	privcurve_t *	pc,
		potrace_curve_t *	c
	)

Copy private to public curve structure.

Definition at line 148 of file curve.c.

References privcurve_s::c, potrace_curve_s::c, privcurve_s::n, potrace_curve_s::n, privcurve_s::tag, and potrace_curve_s::tag.