/****************************************************************************** * $Id: ilihelper.h 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  Interlis 1/2 Translator * Purpose:   Definition of classes for OGR Interlis 1 driver. * Author:   Pirmin Kalberer, Sourcepole AG * ****************************************************************************** * Copyright (c) 2004, Pirmin Kalberer, Sourcepole AG * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ****************************************************************************/#ifndef _ILIHELPER_H_INCLUDED#define _ILIHELPER_H_INCLUDED#include "ogr_geometry.h"#ifndef PI#define PI  3.1415926535897932384626433832795#endifOGRPoint *getARCCenter(OGRPoint *ptStart, OGRPoint *ptArc, OGRPoint *ptEnd);double getPhi(OGRPoint *center, OGRPoint *pt);void interpolateArc(OGRLineString* line, OGRPoint *ptStart, OGRPoint *ptOnArc, OGRPoint *ptEnd, double arcIncr);#endif /* _ILIHELPER_H_INCLUDED */