207 lines
8.2 KiB
Plaintext
207 lines
8.2 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_GEOMETRY_COMPILER_H
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#define OSGEARTH_FEATURES_GEOMETRY_COMPILER_H 1
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#include <osgEarth/Common>
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#include <osgEarth/Feature>
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#include <osgEarth/FeatureCursor>
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#include <osgEarth/ResampleFilter>
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#include <osgEarth/Style>
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#include <osgEarth/GeoMath>
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#include <osgEarth/ShaderUtils>
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namespace osgEarth
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{
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/** TODO: refactor into GeometryCompiler::Options */
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class OSGEARTH_EXPORT GeometryCompilerOptions
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{
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public:
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/**
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* Set the global default values for the options.
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*/
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static void setDefaults(const GeometryCompilerOptions& defaults);
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public:
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/**
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* Construct new copiler options, optionally deserializing them
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*/
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GeometryCompilerOptions(const ConfigOptions& conf =ConfigOptions());
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public:
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/** Maximum span of a generated edge, in degrees. Applicable to geocentric maps only */
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optional<double>& maxGranularity() { return _maxGranularity_deg; }
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const optional<double>& maxGranularity() const { return _maxGranularity_deg; }
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/** Interpolation type to use for geodetic points */
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optional<GeoInterpolation>& geoInterp() { return _geoInterp; }
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const optional<GeoInterpolation>& geoInterp() const { return _geoInterp; }
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/** Whether to merge geometry from multiple features */
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optional<bool>& mergeGeometry() { return _mergeGeometry; }
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const optional<bool>& mergeGeometry() const { return _mergeGeometry; }
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/** Expression to evaluate to extract a feature's readable name */
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optional<StringExpression>& featureName() { return _featureNameExpr; }
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const optional<StringExpression>& featureName() const { return _featureNameExpr; }
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/** Whether to cluster feature geometries together for speed */
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optional<bool>& clustering() { return _clustering; }
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const optional<bool>& clustering() const { return _clustering; }
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/** Whether to enabled draw-instancing for model substitution */
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optional<bool>& instancing() { return _instancing; }
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const optional<bool>& instancing() const { return _instancing; }
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/** Whether to ignore the altitude filter (e.g. if you plan to do auto-clamping layer) */
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optional<bool>& ignoreAltitudeSymbol() { return _ignoreAlt; }
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const optional<bool>& ignoreAltitudeSymbol() const { return _ignoreAlt; }
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//todo: merge this with geoInterp()
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optional<osgEarth::ResampleFilter::ResampleMode>& resampleMode() { return _resampleMode;}
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const optional<osgEarth::ResampleFilter::ResampleMode>& resampleMode() const { return _resampleMode;}
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optional<double>& resampleMaxLength() { return _resampleMaxLength; }
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const optional<double>& resampleMaxLength() const { return _resampleMaxLength;}
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/** Whether to generate shader components on compiled geometry */
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optional<ShaderPolicy>& shaderPolicy() { return _shaderPolicy; }
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const optional<ShaderPolicy>& shaderPolicy() const { return _shaderPolicy; }
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/** Whether to run consolidate equivalent state attributes for better performance. */
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optional<bool>& optimizeStateSharing() { return _optimizeStateSharing; }
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const optional<bool>& optimizeStateSharing() const { return _optimizeStateSharing; }
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/** Whether to run the optimizer on the resulting group. */
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optional<bool>& optimize() { return _optimize; }
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const optional<bool>& optimize() const { return _optimize; }
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/** Whether to run the vertex order optimizer on geometry. */
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optional<bool>& optimizeVertexOrdering() { return _optimizeVertexOrdering; }
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const optional<bool>& optimizeVertexOrdering() const { return _optimizeVertexOrdering; }
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/** Whether to run a geometry validation pass on the resulting group. This is for debugging
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purposes and will dump issues to the console. */
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optional<bool>& validate() { return _validate; }
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const optional<bool>& validate() const { return _validate; }
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/** Maximum size (angle, degrees) of a polygon tile, when breaking up a large polygon for tessellation;
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only applies to geocentric maps (detault = 5.0) */
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optional<float>& maxPolygonTilingAngle() { return _maxPolyTilingAngle; }
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const optional<float>& maxPolygonTilingAngle() const { return _maxPolyTilingAngle; }
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/** Whether to use OSG tessellator (default=false) */
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optional<bool>& useOSGTessellator() { return _useOSGTessellator; }
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const optional<bool>& useOSGTessellator() const { return _useOSGTessellator; }
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public:
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Config getConfig() const;
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protected:
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void fromConfig( const Config& conf );
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private:
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optional<double> _maxGranularity_deg;
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optional<GeoInterpolation> _geoInterp;
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optional<bool> _mergeGeometry;
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optional<StringExpression> _featureNameExpr;
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optional<bool> _clustering;
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optional<bool> _instancing;
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optional<ResampleFilter::ResampleMode> _resampleMode;
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optional<double> _resampleMaxLength;
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optional<bool> _ignoreAlt;
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optional<ShaderPolicy> _shaderPolicy;
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optional<bool> _optimizeStateSharing;
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optional<bool> _optimize;
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optional<bool> _optimizeVertexOrdering;
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optional<bool> _validate;
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optional<float> _maxPolyTilingAngle;
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optional<bool> _useOSGTessellator;
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static GeometryCompilerOptions s_defaults;
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public:
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GeometryCompilerOptions(bool); // internal
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};
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/**
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* Compiles a collection of features against a style.
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*/
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class OSGEARTH_EXPORT GeometryCompiler
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{
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public:
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/** Constructs a new geometry compiler with default options. */
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GeometryCompiler();
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/** Constructs a new compiler with preconfigured options. */
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GeometryCompiler( const GeometryCompilerOptions& options );
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virtual ~GeometryCompiler() { }
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/** Access the options read-only */
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const GeometryCompilerOptions& options() const { return _options; }
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/** Access the options for editing. */
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GeometryCompilerOptions& options() { return _options; }
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public:
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/** Compiles a collection of features into an OSG scene graph. */
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osg::Node* compile(
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FeatureCursor* input,
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const Style& style,
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const FilterContext& context);
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osg::Node* compile(
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Feature* input,
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const Style& style,
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const FilterContext& context);
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osg::Node* compile(
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Feature* input,
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const FilterContext& context);
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osg::Node* compile(
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Geometry* geom,
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const Style& style,
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const FilterContext& context);
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osg::Node* compile(
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Geometry* geom,
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const Style& style);
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osg::Node* compile(
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Geometry* geom,
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const FilterContext& context);
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osg::Node* compile(
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FeatureList& mungeableInput,
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const Style& style,
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const FilterContext& context);
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protected:
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GeometryCompilerOptions _options;
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};
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} // namespace osgEarth
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#endif // OSGEARTH_FEATURES_GEOMETRY_COMPILER_H
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