/usr/include/graphviz/pathplan.h is in libgraphviz-dev 2.26.3-10ubuntu1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | /* $Id: pathplan.h,v 1.5 2009/06/03 01:10:54 ellson Exp $ $Revision: 1.5 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#ifndef _PATH_INCLUDE
#define _PATH_INCLUDE
#include "pathgeom.h"
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_BLD_pathplan) && defined(__EXPORT__)
# define extern __EXPORT__
#endif
/* find shortest euclidean path within a simple polygon */
extern int Pshortestpath(Ppoly_t * boundary, Ppoint_t endpoints[2],
Ppolyline_t * output_route);
/* fit a spline to an input polyline, without touching barrier segments */
extern int Proutespline(Pedge_t * barriers, int n_barriers,
Ppolyline_t input_route,
Pvector_t endpoint_slopes[2],
Ppolyline_t * output_route);
/* utility function to convert from a set of polygonal obstacles to barriers */
extern int Ppolybarriers(Ppoly_t ** polys, int npolys,
Pedge_t ** barriers, int *n_barriers);
/* function to convert a polyline into a spline representation */
extern void make_polyline(Ppolyline_t line, Ppolyline_t* sline);
#undef extern
#ifdef __cplusplus
}
#endif
#endif
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