105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
// triangle.hxx -- "Triangle" interface class
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//
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// Written by Curtis Olson, started March 1999.
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//
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// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifndef _TRIANGLE_HXX
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#define _TRIANGLE_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <Include/compiler.h>
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#include <Array/array.hxx>
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#include <Clipper/clipper.hxx>
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#include <Main/construct.hxx>
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#include <Math/point3d.hxx>
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#include <Polygon/names.hxx>
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#define REAL double
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extern "C" {
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#include <Triangle/triangle.h>
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}
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#include "polygon.hxx"
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#include "trieles.hxx"
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#include "trinodes.hxx"
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#include "trisegs.hxx"
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class FGTriangle {
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private:
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// list of nodes
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FGTriNodes in_nodes;
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FGTriNodes out_nodes;
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// list of segments
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FGTriSegments in_segs;
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FGTriSegments out_segs;
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// polygon list
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poly_list polylist[FG_MAX_AREA_TYPES];
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// triangle list
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triele_list elelist;
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public:
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// Constructor and destructor
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FGTriangle( void );
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~FGTriangle( void );
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// add nodes from the dem fit
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int add_nodes();
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// populate this class based on the specified gpc_polys list
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int build( const point_list& corner_list,
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const point_list& fit_list,
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const FGgpcPolyList& gpc_polys );
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// populate this class based on the specified gpc_polys list
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int rebuild( FGConstruct& c );
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// Front end triangulator for polygon list. Allocates and builds
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// up all the needed structures for the triangulator, runs it,
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// copies the results, and frees all the data structures used by
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// the triangulator. "pass" can be 1 or 2. 1 = first pass which
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// generates extra nodes for a better triangulation. 2 = second
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// pass after split/reassem where we don't want any extra nodes
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// generated.
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int run_triangulate( int pass );
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inline FGTriNodes get_out_nodes() const { return out_nodes; }
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inline size_t get_out_nodes_size() const { return out_nodes.size(); }
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inline triele_list get_elelist() const { return elelist; }
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inline FGTriSegments get_out_segs() const { return out_segs; }
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};
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#endif // _TRIANGLE_HXX
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