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/*************************************************************************
*
* $RCSfile: b3dpolygontools.hxx,v $
*
* $Revision: 1.1 $
*
* last change: $Author: aw $ $Date: 2003-11-26 14:29:20 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _BGFX_POLYGON_B3DPOLYGONTOOLS_HXX
#define _BGFX_POLYGON_B3DPOLYGONTOOLS_HXX
#ifndef _BGFX_POINT_B3DPOINT_HXX
#include <basegfx/point/b3dpoint.hxx>
#endif
#ifndef _BGFX_VECTOR_B3DVECTOR_HXX
#include <basegfx/vector/b3dvector.hxx>
#endif
//////////////////////////////////////////////////////////////////////////////
namespace basegfx
{
// predefinitions
namespace polygon
{
class B3DPolygon;
} // end of namespace polygon
// predefinitions
namespace range
{
class B3DRange;
} // end of namespace range
namespace polygon
{
namespace tools
{
// B3DPolygon tools
/** Check if given polygon is closed. This is kind of a
'classic' method to support old polygon definitions.
Those old polygon definitions define the closed state
of the polygon using identical start and endpoints. This
method corrects this (removes double start/end points)
and sets the Closed()-state of the polygon correctly.
*/
void checkClosed(::basegfx::polygon::B3DPolygon& rCandidate);
// Get successor and predecessor indices. Returning the same index means there
// is none. Same for successor.
sal_uInt32 getIndexOfPredecessor(sal_uInt32 nIndex, const ::basegfx::polygon::B3DPolygon& rCandidate);
sal_uInt32 getIndexOfSuccessor(sal_uInt32 nIndex, const ::basegfx::polygon::B3DPolygon& rCandidate);
// Get index of first different predecessor. Returning the same index means there
// is none. Same for successor.
sal_uInt32 getIndexOfDifferentPredecessor(sal_uInt32 nIndex, const ::basegfx::polygon::B3DPolygon& rCandidate);
sal_uInt32 getIndexOfDifferentSuccessor(sal_uInt32 nIndex, const ::basegfx::polygon::B3DPolygon& rCandidate);
// get size of polygon. Control vectors are included in that ranges.
::basegfx::range::B3DRange getRange(const ::basegfx::polygon::B3DPolygon& rCandidate);
// get length of polygon edge from point nIndex to nIndex + 1
double getEdgeLength(const ::basegfx::polygon::B3DPolygon& rCandidate, sal_uInt32 nIndex);
// get length of polygon
double getLength(const ::basegfx::polygon::B3DPolygon& rCandidate);
// get position on polygon for absolute given distance. If
// length is given, it is assumed the correct polygon length, if 0.0 it is calculated
// using getLength(...)
::basegfx::point::B3DPoint getPositionAbsolute(const ::basegfx::polygon::B3DPolygon& rCandidate, double fDistance, double fLength = 0.0);
// get position on polygon for relative given distance in range [0.0 .. 1.0]. If
// length is given, it is assumed the correct polygon length, if 0.0 it is calculated
// using getLength(...)
::basegfx::point::B3DPoint getPositionRelative(const ::basegfx::polygon::B3DPolygon& rCandidate, double fDistance, double fLength = 0.0);
} // end of namespace tools
} // end of namespace polygon
} // end of namespace basegfx
#endif // _BGFX_POLYGON_B3DPOLYGONTOOLS_HXX
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