59 lines
2.0 KiB
Plaintext
59 lines
2.0 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_UTIL_UTM_LABELING_ENGINE_H
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#define OSGEARTH_UTIL_UTM_LABELING_ENGINE_H 1
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#include <osgEarth/Common>
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#include <osgEarth/GraticuleLabelingEngine>
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#include <osgEarth/GeoData>
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#include <osgEarth/MapNode>
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#include <osgEarth/Containers>
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#include <osgEarth/LabelNode>
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namespace osgEarth { namespace Util
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{
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using namespace osgEarth;
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/**
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* Node that plots UTM coordinats labels along the edge of the
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* viewport when you are looking straight down on a zoomed-in area.
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*/
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class UTMLabelingEngine : public GraticuleLabelingEngine
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{
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public:
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//! Construct a new labeling engine with the map's SRS
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UTMLabelingEngine(const SpatialReference* srs);
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//! Sets the maximum resolution (meters) at which to render labels
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void setMaxResolution(double value);
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virtual bool updateLabels(const osg::Vec3d& LL_world, osg::Vec3d& UL_world, osg::Vec3d& LR_world, ClipSpace& window, CameraData& data);
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protected:
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double _maxRes;
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};
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} } // namespace osgEarth::Util
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#endif // OSGEARTH_UTIL_UTM_LABELING_ENGINE_H
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