113 lines
3.9 KiB
Plaintext
113 lines
3.9 KiB
Plaintext
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/* -*-c++-*- */
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/* osgEarth - Geospatial SDK for OpenSceneGraph
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* Copyright 2020 Pelican Mapping
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* http://osgearth.org
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*
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* osgEarth is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU 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 License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef OSGEARTH_FEATURES_XYZ_FEATURESOURCE_LAYER
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#define OSGEARTH_FEATURES_XYZ_FEATURESOURCE_LAYER
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#include <osgEarth/FeatureSource>
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namespace osgEarth
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{
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/**
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* FeatureSource that reads feature tiles from a parameterized "XYZ" source.
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*/
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class OSGEARTH_EXPORT XYZFeatureSource : public FeatureSource
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{
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public:
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class OSGEARTH_EXPORT Options : public FeatureSource::Options {
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public:
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META_LayerOptions(osgEarth, Options, FeatureSource::Options);
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OE_OPTION(URI, url);
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OE_OPTION(std::string, format);
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OE_OPTION(int, minLevel);
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OE_OPTION(int, maxLevel);
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OE_OPTION(bool, esriGeodetic, false);
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OE_OPTION(bool, autoFallback, false);
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virtual Config getConfig() const;
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private:
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void fromConfig(const Config& conf);
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};
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public:
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META_Layer(osgEarth, XYZFeatureSource, Options, FeatureSource, xyzfeatures);
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//! Location of the resource
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void setURL(const URI& value);
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const URI& getURL() const;
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//! Format of the geometry data (GeoJSON, GML)
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void setFormat(const std::string& value);
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const std::string& getFormat() const;
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//! Minimum level of detail to access
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void setMinLevel(const int& value);
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const int& getMinLevel() const;
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//! Maximum level of detail to access
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void setMaxLevel(const int& value);
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const int& getMaxLevel() const;
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//! Whether this is an ESRI style XYZ source, which needs it's LOD offset by 1 to match
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//! the normal global-geodetic profile.
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void setEsriGeodetic(const bool& value);
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const bool& getEsriGeodetic() const;
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//! Whether a query for a TileKey higher than the max_level will
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//! automatically fall back to a query at the max_level.
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//! Default = false (an out-of bounds query returns nothing)
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void setAutoFallbackToMaxLevel(const bool& value);
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const bool& getAutoFallbackToMaxLevel() const;
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public: // Layer
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Status openImplementation() override;
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protected:
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void init() override;
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public: // FeatureLayer
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FeatureCursor* createFeatureCursorImplementation(const Query& query, ProgressCallback* progress) const override;
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const FeatureSchema& getSchema() const override { return _schema; }
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protected:
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virtual ~XYZFeatureSource() { }
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private:
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FeatureSchema _schema;
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std::string _template;
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std::string _rotateChoices;
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std::string _rotateString;
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std::string::size_type _rotateStart, _rotateEnd;
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mutable std::atomic_int _rotate_iter;
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bool getFeatures(const std::string& buffer, const TileKey& key, const std::string& mimeType, FeatureList& features) const;
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std::string getExtensionForMimeType(const std::string& mime) const;
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bool isGML( const std::string& mime ) const;
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bool isJSON( const std::string& mime ) const;
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URI createURL(const Query& query) const;
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};
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} // namespace osgEarth
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OSGEARTH_SPECIALIZE_CONFIG(osgEarth::XYZFeatureSource::Options);
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#endif // OSGEARTH_FEATURES_XYZ_FEATURESOURCE_LAYER
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