f1393cc019
bool hit_test(double x, double y, double tol);
2. added image_view(unsigned x, unsigned y, unsigned width, unsigned height)
allowing to select region from image data e.g (in Python):
im = Image(2048,2048)
view = im.view(0,0,256,256)
save_to_file(filename,type, view)
3. changed envelope method to return vy value in datasource classes
4. features_at_point impl for shape and postgis plug-ins
91 lines
3.2 KiB
C++
91 lines
3.2 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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//$Id: layer.hpp 39 2005-04-10 20:39:53Z pavlenko $
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#ifndef LAYER_HPP
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#define LAYER_HPP
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// stl
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#include <vector>
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// boost
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#include <boost/shared_ptr.hpp>
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// mapnik
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#include <mapnik/feature.hpp>
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#include <mapnik/datasource.hpp>
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namespace mapnik
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{
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class MAPNIK_DECL Layer
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{
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std::string name_;
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std::string title_;
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std::string abstract_;
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std::string srs_;
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double minZoom_;
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double maxZoom_;
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bool active_;
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bool selectable_;
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std::vector<std::string> styles_;
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std::string selection_style_;
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datasource_ptr ds_;
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mutable std::vector<boost::shared_ptr<Feature> > selection_;
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public:
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explicit Layer(std::string const& name, std::string const& srs="+proj=latlong +datum=WGS84");
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Layer(Layer const& l);
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Layer& operator=(Layer const& l);
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bool operator==(Layer const& other) const;
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void set_name(std::string const& name);
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const std::string& name() const;
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void set_title(std::string const& title);
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const std::string& title() const;
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void set_abstract(std::string const& abstract);
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const std::string& abstract() const;
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void set_srs(std::string const& srs);
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std::string const& srs() const;
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void add_style(std::string const& stylename);
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std::vector<std::string> const& styles() const;
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void selection_style(const std::string& name);
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const std::string& selection_style() const;
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void setMinZoom(double minZoom);
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void setMaxZoom(double maxZoom);
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double getMinZoom() const;
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double getMaxZoom() const;
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void setActive(bool active);
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bool isActive() const;
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void setSelectable(bool selectable);
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bool isSelectable() const;
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bool isVisible(double scale) const;
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void add_to_selection(boost::shared_ptr<Feature>& feature) const;
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std::vector<boost::shared_ptr<Feature> >& selection() const;
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void clear_selection() const;
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void set_datasource(datasource_ptr const& ds);
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datasource_ptr datasource() const;
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Envelope<double> envelope() const;
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~Layer();
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private:
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void swap(const Layer& other);
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};
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}
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#endif //LAYER_HPP
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