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# CoordinateSequenceFilter.h

    00001 /**********************************************************************
    00002  * $Id: CoordinateSequenceFilter.h 2809 2009-12-06 01:05:24Z mloskot $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2009  Sandro Santilli <strk@keybit.net>
    00008  *
    00009  * This is free software; you can redistribute and/or modify it under
    00010  * the terms of the GNU Lesser General Public Licence as published
    00011  * by the Free Software Foundation.
    00012  * See the COPYING file for more information.
    00013  *
    00014  **********************************************************************
    00015  *
    00016  * Last port: geom/CoordinateSequenceFilter.java rev. 1.3 (JTS-1.9)
    00017  *
    00018  **********************************************************************/
    00019
    00020 #ifndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H
    00021 #define GEOS_GEOM_COORDINATESEQUENCEFILTER_H
    00022
    00023 #include <geos/inline.h>
    00024
    00025 #include <cassert>
    00026
    00027 // Forward declarations
    00028 namespace geos {
    00029         namespace geom {
    00030                 class CoordinateSequence;
    00031         }
    00032 }
    00033
    00034 namespace geos {
    00035 namespace geom { // geos::geom
    00036
    00058 class CoordinateSequenceFilter {
    00059
    00060 public:
    00061
    00062   virtual ~CoordinateSequenceFilter() {}
    00063
    00071   virtual void filter_rw(CoordinateSequence& /*seq*/, size_t /*i*/)
    00072   { assert(0); }
    00073
    00081   virtual void filter_ro(const CoordinateSequence& /*seq*/, size_t /*i*/)
    00082   { assert(0); }
    00083
    00091   virtual bool isDone() const = 0;
    00092
    00093
    00105   virtual bool isGeometryChanged() const = 0;
    00106
    00107 };
    00108
    00109 } // namespace geos::geom
    00110 } // namespace geos
    00111
    00112
    00113 #endif // ndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H
    00114