60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
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// poly_extra.hxx -- Extra polygon manipulation routines
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//
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// Written by Curtis Olson, started February 2002.
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//
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// Copyright (C) 2002 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 modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (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,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU 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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//
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#ifndef _POLY_EXTRA_HXX
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#define _POLY_EXTRA_HXX
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#include <simgear/math/point3d.hxx>
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#include <Geometry/trinodes.hxx>
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#include <Polygon/polygon.hxx>
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// Divide segment if there are other existing points on it, return the
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// new polygon
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void add_intermediate_nodes( int contour, const Point3D& start,
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const Point3D& end, const FGTriNodes& tmp_nodes,
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FGPolygon *result );
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// Search each segment for additional vertex points that may have been
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// created elsewhere that lie on the segment and split it there to
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// avoid "T" intersections.
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FGPolygon add_nodes_to_poly( const FGPolygon& poly,
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const FGTriNodes& tmp_nodes );
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// Traverse a polygon and split edges until they are less than max_len
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// (specified in meters)
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FGPolygon split_long_edges( const FGPolygon &poly, double max_len );
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// Traverse a polygon and toss all the internal holes
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FGPolygon strip_out_holes( const FGPolygon &poly );
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#endif // _POLY_EXTRA_HXX
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