/usr/include/geomview/private/vectP.h is in libgeomview-dev 1.9.5-2.
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 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | /* Copyright (C) 1992-1998 The Geometry Center
* Copyright (C) 1998-2000 Stuart Levy, Tamara Munzner, Mark Phillips
*
* This file is part of Geomview.
*
* Geomview is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* Geomview is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Geomview; see the file COPYING. If not, write
* to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
* USA, or visit http://www.gnu.org.
*/
/* Authors: Charlie Gunn, Stuart Levy, Tamara Munzner, Mark Phillips */
#ifndef VECTPDEF
#define VECTPDEF
#include "geomclass.h"
#include "vect.h"
/*
* A Vect is a collection of polylines.
* It's represented by:
* p, an array of vertices (for all the polylines in sequence),
* c, an array of r/g/b/alpha colors (not necessarily one per vertex),
* vnvert, an array of sizes (vertex counts) of each polyline,
* vncolor, an array of numbers of colors (c[] entry counts) of each polyline,
* nvec, giving the number of polylines (entries in vnvert and vncolor),
* nvert, giving the total number of vertices (entries in p),
* ncolor, the total number of colors (entries in c).
*
* Here's the association:
* Let vN = sum from i = 0 to N-1 of vnvert[i],
* and cN = sum from i = 0 to N-1 of vncolor[i],
* then polyline N comprises the vnvert[N] vertices
* from p[vN] through p[vN + vnvert[N] - 1]
* and is drawn using the vncolor[N] different colors
* from c[cN] through c[cN + vncolor[N] - 1].
*
* This encoding implies colors and vertices may not be reused from line to
* line (but the previous color persists for lines with 0 colors, see below).
*
* Closed polylines:
* A polyline is drawn closed (the last element connected to the first)
* if its vnvert[N] is negative. It's then considered to have
* abs(vnvert[N]) vertices in the p[] array.
*
* A polyline with 1 vertex is a point. 0 vertices are illegal.
*
* Coloring:
* It's intended that polylines will be specified with either
* 0, 1, or abs(vnvert[N]) colors. The effects in each case are:
* 0: the polyline is drawn with the same color as the previous polyline.
* 1: the polyline is drawn with the specified single color.
* abs(vnvert[N]): each vertex is colored with the specified color.
* intermediate points on the line are interpolated.
*/
struct Vect {
GEOMFIELDS;
int nvec, nvert, ncolor;
short *vnvert; /* vnvert[nvec] (# p[]'s per vec) */
short *vncolor; /* vncolor[nvec] (# c[]'s per vec) */
/* NOTE: vnvert and vncolor lie in a *single* malloc'ed area */
/* To free, OOGLFree(vnvert). */
HPoint3 *p; /* p[nvert] */
ColorA *c; /* c[ncolor] */
};
extern Vect *VectCreate( Vect *, GeomClass *, va_list *a_list);
extern void VectDelete( Vect * );
extern Vect *VectCopy( Vect * );
extern Vect *VectPick( Vect *, Pick *, Appearance *,
Transform, TransformN *, int *axes );
#endif /*VECTPDEF*/
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