62 lines
2.2 KiB
Plaintext
62 lines
2.2 KiB
Plaintext
|
/* -*-c++-*- */
|
||
|
|
/* osgEarth - Geospatial SDK for OpenSceneGraph
|
||
|
|
* Copyright 2020 Pelican Mapping
|
||
|
|
* http://osgearth.org
|
||
|
|
*
|
||
|
|
* osgEarth is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||
|
|
* IN THE SOFTWARE.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
||
|
|
*/
|
||
|
|
#ifndef OSGEARTH_ANNOTATION_GEO_POSITION_NODE_AUTO_SCALER_H
|
||
|
|
#define OSGEARTH_ANNOTATION_GEO_POSITION_NODE_AUTO_SCALER_H 1
|
||
|
|
|
||
|
|
#include <osgEarth/Common>
|
||
|
|
#include <osg/NodeCallback>
|
||
|
|
#include <osg/Vec3d>
|
||
|
|
|
||
|
|
namespace osgEarth
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* A CULL callback you can install on a GeoPositionNode that will
|
||
|
|
* automatically scale the annotation from scene coordinates to
|
||
|
|
* screen coordinates.
|
||
|
|
*
|
||
|
|
* Important: ONLY install this on a GeoPositionNode, or else you will
|
||
|
|
* get a crash -- it does NO type checking.
|
||
|
|
*
|
||
|
|
* geoPosNode->addCullCallback( new GeoPositionNodeAutoScaler() );
|
||
|
|
*
|
||
|
|
* @deprecated - replace with osgEarth::AutoScaleCallback, and support
|
||
|
|
* with a scale() method no GeoPositionNode et al
|
||
|
|
*/
|
||
|
|
class OSGEARTH_EXPORT GeoPositionNodeAutoScaler : public osg::NodeCallback
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
GeoPositionNodeAutoScaler(const osg::Vec3d& baseScale = osg::Vec3d(1,1,1), double minScale = 0.0, double maxScale = DBL_MAX);
|
||
|
|
|
||
|
|
public: // osg::NodeCallback
|
||
|
|
|
||
|
|
void operator()(osg::Node* node, osg::NodeVisitor* nv);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
osg::Vec3d _baseScale;
|
||
|
|
double _minScale;
|
||
|
|
double _maxScale;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
#endif //OSGEARTH_ANNOTATION_GEO_POSITION_NODE_AUTO_SCALER_H
|