033af0d05c
Fixed a couple bugs in first pass at triangulation. - needed to explicitely initialize the polygon accumulator in triangle.cxx before each polygon rather than depending on the default behavior. - Fixed a problem with region attribute propagation where I wasn't generating the hole points correctly.
97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
// tripoly.hxx -- "Triangle" polygon management class
|
|
//
|
|
// Written by Curtis Olson, started March 1999.
|
|
//
|
|
// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation; either version 2 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program 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
|
|
// General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
//
|
|
// $Id$
|
|
// (Log is kept at end of this file)
|
|
|
|
|
|
#ifndef _TRIPOLY_HXX
|
|
#define _TRIPOLY_HXX
|
|
|
|
|
|
#ifndef __cplusplus
|
|
# error This library requires C++
|
|
#endif
|
|
|
|
|
|
#include <Include/compiler.h>
|
|
|
|
#include <vector>
|
|
|
|
#include "trinodes.hxx"
|
|
|
|
FG_USING_STD(vector);
|
|
|
|
|
|
typedef vector < int > tripoly;
|
|
typedef tripoly::iterator tripoly_iterator;
|
|
typedef tripoly::const_iterator const_tripoly_iterator;
|
|
|
|
|
|
class FGTriPoly {
|
|
|
|
private:
|
|
|
|
tripoly poly;
|
|
Point3D inside;
|
|
|
|
public:
|
|
|
|
// Constructor and destructor
|
|
FGTriPoly( void );
|
|
~FGTriPoly( void );
|
|
|
|
// Add the specified node (index) to the polygon
|
|
inline void add_node( int index ) { poly.push_back( index ); }
|
|
|
|
// return size
|
|
inline int size() const { return poly.size(); }
|
|
|
|
// return the ith polygon point index
|
|
inline int get_pt_index( int i ) const { return poly[i]; }
|
|
|
|
// calculate an "arbitrary" point inside this polygon for
|
|
// assigning attribute areas
|
|
void calc_point_inside( const FGTriNodes& trinodes );
|
|
inline Point3D get_point_inside() const { return inside; }
|
|
|
|
inline void erase() { poly.erase( poly.begin(), poly.end() ); }
|
|
};
|
|
|
|
|
|
#endif // _TRIPOLY_HXX
|
|
|
|
|
|
// $Log$
|
|
// Revision 1.3 1999/03/21 14:02:07 curt
|
|
// Added a mechanism to dump out the triangle structures for viewing.
|
|
// Fixed a couple bugs in first pass at triangulation.
|
|
// - needed to explicitely initialize the polygon accumulator in triangle.cxx
|
|
// before each polygon rather than depending on the default behavior.
|
|
// - Fixed a problem with region attribute propagation where I wasn't generating
|
|
// the hole points correctly.
|
|
//
|
|
// Revision 1.2 1999/03/20 20:32:58 curt
|
|
// First mostly successful tile triangulation works. There's plenty of tweaking
|
|
// to do, but we are marching in the right direction.
|
|
//
|
|
// Revision 1.1 1999/03/20 13:21:36 curt
|
|
// Initial revision.
|
|
//
|