80 lines
2.6 KiB
Plaintext
80 lines
2.6 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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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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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_IMAGE_TO_HEIGHTFIELD_CONVERTER
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#define OSGEARTH_IMAGE_TO_HEIGHTFIELD_CONVERTER 1
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#include <osgEarth/Export>
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#include <osg/Image>
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#include <osg/Shape>
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namespace osgEarth { namespace Util
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{
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/**
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* Utility class that re-interprets an image as a heightfield and vice-versa.
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*/
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class OSGEARTH_EXPORT ImageToHeightFieldConverter
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{
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public:
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ImageToHeightFieldConverter();
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/** dtor */
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virtual ~ImageToHeightFieldConverter() { }
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/**
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* Instruct the converter to detect and replace "no data" values. It will
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* try to interpolate the proper value, or fall back on the provided value
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* if the interpolation fails.
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*/
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void setRemoveNoDataValues( bool value, float fallback =0.0f );
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public:
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/**
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* Converts an image to a heightfield.
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*/
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osg::HeightField* convert(const osg::Image* image );
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osg::HeightField* convert(const osg::Image* image, float scaleFactor );
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/**
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* Converts a heightfield to an image.
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*/
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osg::Image* convert(const osg::HeightField* hf, int pixelSize = 32);
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osg::Image* convertToR16F(const osg::HeightField* hf) const;
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osg::Image* convertToR32F(const osg::HeightField* hf) const;
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private:
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osg::HeightField* convert16(const osg::Image* image ) const;
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osg::HeightField* convert32(const osg::Image* image ) const;
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osg::Image* convert16(const osg::HeightField* hf ) const;
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osg::Image* convert32(const osg::HeightField* hf ) const;
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bool _replace_nodata;
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float _nodata_value;
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};
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} }
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#endif //OSGEARTH_IMAGE_TO_HEIGHTFIELD_CONVERTER
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