153 lines
3.4 KiB
C++
153 lines
3.4 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2006 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef SPATIAL_HPP
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#define SPATIAL_HPP
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#include <mapnik/filter.hpp>
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#include <mapnik/filter_visitor.hpp>
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namespace mapnik
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{
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template <typename FeatureT>
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struct equals_ : public filter<FeatureT>
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{
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bool pass(const FeatureT& feature) const
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{
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return false;
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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};
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template <typename FeatureT>
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struct disjoint : public filter<FeatureT>
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{
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bool pass(const FeatureT& feature) const
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{
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return false;
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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};
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template <typename FeatureT>
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struct touches : public filter<FeatureT>
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{
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bool pass(const FeatureT& feature) const
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{
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return false;
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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};
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template <typename FeatureT>
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struct within : public filter<FeatureT>
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{
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bool pass(const FeatureT& feature) const
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{
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return false;
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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};
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template <typename FeatureT>
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struct overlaps : public filter<FeatureT>
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{
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bool pass(const FeatureT& feature) const
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{
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return false;
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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};
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template <typename FeatureT>
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struct crosses : public filter<FeatureT>
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{
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bool pass(const FeatureT& feature) const
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{
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return false;
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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};
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template <typename FeatureT>
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struct bbox : public filter<FeatureT>
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{
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private:
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Envelope<double> box_;
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public:
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bbox(const Envelope<double>& box)
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: box_(box) {}
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bool pass(const FeatureT& feature) const
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{
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return box_.contains(feature.get_geometry()->bbox());
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}
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filter<FeatureT>* clone() const
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{
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return new bbox<FeatureT>(box_);
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}
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void accept(const filter_visitor<FeatureT>& v)
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{
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v.visit(*this);
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}
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virtual ~bbox() {}
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};
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}
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#endif //SPATIAL_HPP
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