OpenSceneGraph/examples/osgscalarbar/osgscalarbar.cpp

148 lines
5.0 KiB
C++

/* OpenSceneGraph example, osgscalarbar.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* 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.
*/
#include <osg/Geode>
#include <osg/ShapeDrawable>
#include <osg/Material>
#include <osg/Texture2D>
#include <osg/MatrixTransform>
#include <osg/PositionAttitudeTransform>
#include <osg/BlendFunc>
#include <osg/ClearNode>
#include <osg/Projection>
#include <osgUtil/CullVisitor>
#include <osgGA/TrackballManipulator>
#include <osgViewer/Viewer>
#include <osgDB/ReadFile>
#include <osgSim/ScalarsToColors>
#include <osgSim/ColorRange>
#include <osgSim/ScalarBar>
#include <sstream>
#include <iostream>
#include <math.h>
using namespace osgSim;
using osgSim::ScalarBar;
#if defined(_MSC_VER)
// not have to have this pathway for just VS6.0 as its unable to handle the full
// ScalarBar::ScalarPrinter::printScalar scoping.
// Create a custom scalar printer
struct MyScalarPrinter: public ScalarBar::ScalarPrinter
{
std::string printScalar(float scalar)
{
std::cout<<"In MyScalarPrinter::printScalar"<<std::endl;
if(scalar==0.0f) return ScalarPrinter::printScalar(scalar)+" Bottom";
else if(scalar==0.5f) return ScalarPrinter::printScalar(scalar)+" Middle";
else if(scalar==1.0f) return ScalarPrinter::printScalar(scalar)+" Top";
else return ScalarPrinter::printScalar(scalar);
}
};
#else
// Create a custom scalar printer
struct MyScalarPrinter: public ScalarBar::ScalarPrinter
{
std::string printScalar(float scalar)
{
std::cout<<"In MyScalarPrinter::printScalar"<<std::endl;
if(scalar==0.0f) return ScalarBar::ScalarPrinter::printScalar(scalar)+" Bottom";
else if(scalar==0.5f) return ScalarBar::ScalarPrinter::printScalar(scalar)+" Middle";
else if(scalar==1.0f) return ScalarBar::ScalarPrinter::printScalar(scalar)+" Top";
else return ScalarBar::ScalarPrinter::printScalar(scalar);
}
};
#endif
osg::Node* createScalarBar()
{
#if 1
//ScalarsToColors* stc = new ScalarsToColors(0.0f,1.0f);
//ScalarBar* sb = new ScalarBar(2,3,stc,"STC_ScalarBar");
// Create a custom color set
std::vector<osg::Vec4> cs;
cs.push_back(osg::Vec4(1.0f,0.0f,0.0f,1.0f)); // R
cs.push_back(osg::Vec4(0.0f,1.0f,0.0f,1.0f)); // G
cs.push_back(osg::Vec4(1.0f,1.0f,0.0f,1.0f)); // G
cs.push_back(osg::Vec4(0.0f,0.0f,1.0f,1.0f)); // B
cs.push_back(osg::Vec4(0.0f,1.0f,1.0f,1.0f)); // R
ColorRange* cr = new ColorRange(0.0f,1.0f,cs);
ScalarBar* sb = new ScalarBar(20, 11, cr, "ScalarBar", ScalarBar::VERTICAL, 0.1f, new MyScalarPrinter);
sb->setScalarPrinter(new MyScalarPrinter);
return sb;
#else
ScalarBar *sb = new ScalarBar;
ScalarBar::TextProperties tp;
tp._fontFile = "fonts/times.ttf";
sb->setTextProperties(tp);
return sb;
#endif
}
osg::Node * createScalarBar_HUD()
{
osgSim::ScalarBar * geode = new osgSim::ScalarBar;
osgSim::ScalarBar::TextProperties tp;
tp._fontFile = "fonts/times.ttf";
geode->setTextProperties(tp);
osg::StateSet * stateset = geode->getOrCreateStateSet();
stateset->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
stateset->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
stateset->setRenderBinDetails(11, "RenderBin");
osg::MatrixTransform * modelview = new osg::MatrixTransform;
modelview->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
osg::Matrixd matrix(osg::Matrixd::scale(1000,1000,1000) * osg::Matrixd::translate(120,10,0)); // I've played with these values a lot and it seems to work, but I have no idea why
modelview->setMatrix(matrix);
modelview->addChild(geode);
osg::Projection * projection = new osg::Projection;
projection->setMatrix(osg::Matrix::ortho2D(0,1280,0,1024)); // or whatever the OSG window res is
projection->addChild(modelview);
return projection; //make sure you delete the return sb line
}
int main(int , char **)
{
// construct the viewer.
osgViewer::Viewer viewer;
osg::Group* group = new osg::Group;
group->addChild(createScalarBar());
group->addChild(createScalarBar_HUD());
// add model to viewer.
viewer.setSceneData( group );
return viewer.run();
}