471 lines
18 KiB
C++
471 lines
18 KiB
C++
/* OpenSceneGraph example, osgmanipulator.
|
|
*
|
|
* 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 <osgDB/ReadFile>
|
|
#include <osgUtil/Optimizer>
|
|
#include <osgViewer/Viewer>
|
|
#include <osg/CoordinateSystemNode>
|
|
#include <osgText/Text>
|
|
|
|
#include <osgManipulator/TabBoxDragger>
|
|
#include <osgManipulator/TabBoxTrackballDragger>
|
|
#include <osgManipulator/TabPlaneDragger>
|
|
#include <osgManipulator/TabPlaneTrackballDragger>
|
|
#include <osgManipulator/Scale1DDragger>
|
|
#include <osgManipulator/Scale2DDragger>
|
|
#include <osgManipulator/TrackballDragger>
|
|
#include <osgManipulator/Translate1DDragger>
|
|
#include <osgManipulator/Translate2DDragger>
|
|
#include <osgManipulator/TranslateAxisDragger>
|
|
#include <osgManipulator/TranslatePlaneDragger>
|
|
#include <osgManipulator/RotateCylinderDragger>
|
|
|
|
#include <osg/ShapeDrawable>
|
|
#include <osg/MatrixTransform>
|
|
#include <osg/Geometry>
|
|
#include <osg/Material>
|
|
#include <osg/io_utils>
|
|
|
|
#include <iostream>
|
|
|
|
class PlaneConstraint : public osgManipulator::Constraint
|
|
{
|
|
public:
|
|
PlaneConstraint() {}
|
|
|
|
virtual bool constrain(osgManipulator::TranslateInLineCommand& command) const
|
|
{
|
|
OSG_NOTICE<<"PlaneConstraint TranslateInLineCommand "<<command.getTranslation()<<std::endl;
|
|
return true;
|
|
}
|
|
virtual bool constrain(osgManipulator::TranslateInPlaneCommand& command) const
|
|
{
|
|
//command.setTranslation(osg::Vec3(0.0f,0.0f,0.0f));
|
|
OSG_NOTICE<<"PlaneConstraint TranslateInPlaneCommand "<<command.getTranslation()<<std::endl;
|
|
return true;
|
|
}
|
|
virtual bool constrain(osgManipulator::Scale1DCommand& command) const
|
|
{
|
|
//command.setScale(1.0f);
|
|
OSG_NOTICE<<"PlaneConstraint Scale1DCommand"<<command.getScale()<<std::endl;
|
|
return true;
|
|
}
|
|
virtual bool constrain(osgManipulator::Scale2DCommand& command) const
|
|
{
|
|
//command.setScale(osg::Vec2d(1.0,1.0));
|
|
OSG_NOTICE<<"PlaneConstraint Scale2DCommand "<<command.getScale()<<std::endl;
|
|
return true;
|
|
}
|
|
virtual bool constrain(osgManipulator::ScaleUniformCommand& command) const
|
|
{
|
|
OSG_NOTICE<<"PlaneConstraint ScaleUniformCommand"<<command.getScale()<<std::endl;
|
|
return true;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
osgManipulator::Dragger* createDragger(const std::string& name)
|
|
{
|
|
osgManipulator::Dragger* dragger = 0;
|
|
if ("TabPlaneDragger" == name)
|
|
{
|
|
osgManipulator::TabPlaneDragger* d = new osgManipulator::TabPlaneDragger();
|
|
d->setupDefaultGeometry();
|
|
d->addConstraint(new PlaneConstraint());
|
|
dragger = d;
|
|
}
|
|
else if ("TabPlaneTrackballDragger" == name)
|
|
{
|
|
osgManipulator::TabPlaneTrackballDragger* d = new osgManipulator::TabPlaneTrackballDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("TabBoxTrackballDragger" == name)
|
|
{
|
|
osgManipulator::TabBoxTrackballDragger* d = new osgManipulator::TabBoxTrackballDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("TrackballDragger" == name)
|
|
{
|
|
osgManipulator::TrackballDragger* d = new osgManipulator::TrackballDragger();
|
|
d->setupDefaultGeometry();
|
|
d->setAxisLineWidth(5.0f);
|
|
d->setPickCylinderHeight(0.1f);
|
|
dragger = d;
|
|
}
|
|
else if ("Translate1DDragger" == name)
|
|
{
|
|
osgManipulator::Translate1DDragger* d = new osgManipulator::Translate1DDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("Translate2DDragger" == name)
|
|
{
|
|
osgManipulator::Translate2DDragger* d = new osgManipulator::Translate2DDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("TranslateAxisDragger" == name)
|
|
{
|
|
osgManipulator::TranslateAxisDragger* d = new osgManipulator::TranslateAxisDragger();
|
|
d->setupDefaultGeometry();
|
|
d->setAxisLineWidth(5.0f);
|
|
d->setPickCylinderRadius(0.05f);
|
|
d->setConeHeight(0.2f);
|
|
dragger = d;
|
|
}
|
|
else if ("TranslatePlaneDragger" == name)
|
|
{
|
|
osgManipulator::TranslatePlaneDragger* d = new osgManipulator::TranslatePlaneDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("Scale1DDragger" == name)
|
|
{
|
|
osgManipulator::Scale1DDragger* d = new osgManipulator::Scale1DDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("Scale2DDragger" == name)
|
|
{
|
|
osgManipulator::Scale2DDragger* d = new osgManipulator::Scale2DDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("RotateCylinderDragger" == name)
|
|
{
|
|
osgManipulator::RotateCylinderDragger* d = new osgManipulator::RotateCylinderDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else if ("RotateSphereDragger" == name)
|
|
{
|
|
osgManipulator::RotateSphereDragger* d = new osgManipulator::RotateSphereDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
else
|
|
{
|
|
osgManipulator::TabBoxDragger* d = new osgManipulator::TabBoxDragger();
|
|
d->setupDefaultGeometry();
|
|
dragger = d;
|
|
}
|
|
|
|
|
|
|
|
return dragger;
|
|
}
|
|
|
|
// The DraggerContainer node is used to fix the dragger's size on the screen
|
|
class DraggerContainer : public osg::Group
|
|
{
|
|
public:
|
|
DraggerContainer() : _draggerSize(240.0f), _active(true) {}
|
|
|
|
DraggerContainer( const DraggerContainer& copy, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY )
|
|
: osg::Group(copy, copyop),
|
|
_dragger(copy._dragger), _draggerSize(copy._draggerSize), _active(copy._active)
|
|
{}
|
|
|
|
META_Node( osgManipulator, DraggerContainer );
|
|
|
|
void setDragger( osgManipulator::Dragger* dragger )
|
|
{
|
|
_dragger = dragger;
|
|
if ( !containsNode(dragger) ) addChild( dragger );
|
|
}
|
|
|
|
osgManipulator::Dragger* getDragger() { return _dragger.get(); }
|
|
const osgManipulator::Dragger* getDragger() const { return _dragger.get(); }
|
|
|
|
void setDraggerSize( float size ) { _draggerSize = size; }
|
|
float getDraggerSize() const { return _draggerSize; }
|
|
|
|
void setActive( bool b ) { _active = b; }
|
|
bool getActive() const { return _active; }
|
|
|
|
void traverse( osg::NodeVisitor& nv )
|
|
{
|
|
if ( _dragger.valid() )
|
|
{
|
|
if ( _active && nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR )
|
|
{
|
|
osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(&nv);
|
|
|
|
float pixelSize = cv->pixelSize(_dragger->getBound().center(), 0.48f);
|
|
if ( pixelSize!=_draggerSize )
|
|
{
|
|
float pixelScale = pixelSize>0.0f ? _draggerSize/pixelSize : 1.0f;
|
|
osg::Vec3d scaleFactor(pixelScale, pixelScale, pixelScale);
|
|
|
|
osg::Vec3 trans = _dragger->getMatrix().getTrans();
|
|
_dragger->setMatrix( osg::Matrix::scale(scaleFactor) * osg::Matrix::translate(trans) );
|
|
}
|
|
}
|
|
}
|
|
osg::Group::traverse(nv);
|
|
}
|
|
|
|
protected:
|
|
osg::ref_ptr<osgManipulator::Dragger> _dragger;
|
|
float _draggerSize;
|
|
bool _active;
|
|
};
|
|
|
|
osg::Node* addDraggerToScene(osg::Node* scene, const std::string& name, bool fixedSizeInScreen)
|
|
{
|
|
scene->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
|
|
|
|
osg::MatrixTransform* transform = new osg::MatrixTransform;
|
|
transform->addChild(scene);
|
|
|
|
osgManipulator::Dragger* dragger = createDragger(name);
|
|
|
|
osg::Group* root = new osg::Group;
|
|
root->addChild(transform);
|
|
|
|
if ( fixedSizeInScreen )
|
|
{
|
|
DraggerContainer* draggerContainer = new DraggerContainer;
|
|
draggerContainer->setDragger( dragger );
|
|
root->addChild(draggerContainer);
|
|
}
|
|
else
|
|
root->addChild(dragger);
|
|
|
|
float scale = scene->getBound().radius() * 1.6;
|
|
dragger->setMatrix(osg::Matrix::scale(scale, scale, scale) *
|
|
osg::Matrix::translate(scene->getBound().center()));
|
|
|
|
if (dynamic_cast<osgManipulator::TabPlaneDragger*>(dragger))
|
|
{
|
|
dragger->addTransformUpdating(transform, osgManipulator::DraggerTransformCallback::HANDLE_TRANSLATE_IN_LINE);
|
|
}
|
|
else
|
|
{
|
|
dragger->addTransformUpdating(transform);
|
|
}
|
|
|
|
// we want the dragger to handle it's own events automatically
|
|
dragger->setHandleEvents(true);
|
|
|
|
// if we don't set an activation key or mod mask then any mouse click on
|
|
// the dragger will activate it, however if do define either of ActivationModKeyMask or
|
|
// and ActivationKeyEvent then you'll have to press either than mod key or the specified key to
|
|
// be able to activate the dragger when you mouse click on it. Please note the follow allows
|
|
// activation if either the ctrl key or the 'a' key is pressed and held down.
|
|
dragger->setActivationModKeyMask(osgGA::GUIEventAdapter::MODKEY_CTRL);
|
|
dragger->setActivationKeyEvent('a');
|
|
|
|
return root;
|
|
}
|
|
|
|
osg::Node* createDemoScene(bool fixedSizeInScreen) {
|
|
|
|
osg::Group* root = new osg::Group;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_1 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_1 = new osg::MatrixTransform;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_2 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_2 = new osg::MatrixTransform;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_3 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_3 = new osg::MatrixTransform;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_4 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_4 = new osg::MatrixTransform;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_5 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_5 = new osg::MatrixTransform;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_6 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_6 = new osg::MatrixTransform;
|
|
|
|
osg::ref_ptr<osg::Geode> geode_7 = new osg::Geode;
|
|
osg::ref_ptr<osg::MatrixTransform> transform_7 = new osg::MatrixTransform;
|
|
|
|
|
|
|
|
|
|
|
|
const float radius = 0.8f;
|
|
const float height = 1.0f;
|
|
osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints;
|
|
hints->setDetailRatio(2.0f);
|
|
osg::ref_ptr<osg::ShapeDrawable> shape;
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f, 0.0f, -2.0f), 10, 10.0f, 0.1f), hints.get());
|
|
shape->setColor(osg::Vec4(0.5f, 0.5f, 0.7f, 1.0f));
|
|
geode_1->addDrawable(shape.get());
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 0.0f, 0.0f), radius * 2,radius), hints.get());
|
|
shape->setColor(osg::Vec4(0.8f, 0.8f, 0.8f, 1.0f));
|
|
geode_2->addDrawable(shape.get());
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(-3.0f, 0.0f, 0.0f), radius,radius), hints.get());
|
|
shape->setColor(osg::Vec4(0.6f, 0.8f, 0.8f, 1.0f));
|
|
geode_3->addDrawable(shape.get());
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(3.0f, 0.0f, 0.0f), 2 * radius,radius), hints.get());
|
|
shape->setColor(osg::Vec4(0.4f, 0.9f, 0.3f, 1.0f));
|
|
geode_4->addDrawable(shape.get());
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, -3.0f, 0.0f), radius, height), hints.get());
|
|
shape->setColor(osg::Vec4(0.2f, 0.5f, 0.7f, 1.0f));
|
|
geode_5->addDrawable(shape.get());
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 3.0f, 0.0f), radius, height), hints.get());
|
|
shape->setColor(osg::Vec4(1.0f, 0.3f, 0.3f, 1.0f));
|
|
geode_6->addDrawable(shape.get());
|
|
|
|
shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, 0.0f, 3.0f), 2.0f, 2.0f), hints.get());
|
|
shape->setColor(osg::Vec4(0.8f, 0.8f, 0.4f, 1.0f));
|
|
geode_7->addDrawable(shape.get());
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// material
|
|
osg::ref_ptr<osg::Material> matirial = new osg::Material;
|
|
matirial->setColorMode(osg::Material::DIFFUSE);
|
|
matirial->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
|
|
matirial->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
|
|
matirial->setShininess(osg::Material::FRONT_AND_BACK, 64.0f);
|
|
root->getOrCreateStateSet()->setAttributeAndModes(matirial.get(), osg::StateAttribute::ON);
|
|
|
|
transform_1.get()->addChild(addDraggerToScene(geode_1.get(),"TabBoxDragger",fixedSizeInScreen));
|
|
transform_2.get()->addChild(addDraggerToScene(geode_2.get(),"TabPlaneDragger",fixedSizeInScreen));
|
|
transform_3.get()->addChild(addDraggerToScene(geode_3.get(),"TabBoxTrackballDragger",fixedSizeInScreen));
|
|
transform_4.get()->addChild(addDraggerToScene(geode_4.get(),"TrackballDragger",fixedSizeInScreen));
|
|
transform_5.get()->addChild(addDraggerToScene(geode_5.get(),"Translate1DDragger",fixedSizeInScreen));
|
|
transform_6.get()->addChild(addDraggerToScene(geode_6.get(),"Translate2DDragger",fixedSizeInScreen));
|
|
transform_7.get()->addChild(addDraggerToScene(geode_7.get(),"TranslateAxisDragger",fixedSizeInScreen));
|
|
|
|
root->addChild(transform_1.get());
|
|
root->addChild(transform_2.get());
|
|
root->addChild(transform_3.get());
|
|
root->addChild(transform_4.get());
|
|
root->addChild(transform_5.get());
|
|
root->addChild(transform_6.get());
|
|
root->addChild(transform_7.get());
|
|
|
|
|
|
|
|
return root;
|
|
}
|
|
//
|
|
int main( int argc, char **argv )
|
|
{
|
|
|
|
// use an ArgumentParser object to manage the program arguments.
|
|
osg::ArgumentParser arguments(&argc,argv);
|
|
|
|
// set up the usage document, in case we need to print out how to use this program.
|
|
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--image <filename>","Load an image and render it on a quad");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display command line parameters");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--help-env","Display environmental variables available");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--help-keys","Display keyboard & mouse bindings available");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--help-all","Display all command line, env vars and keyboard & mouse bindings.");
|
|
|
|
arguments.getApplicationUsage()->addCommandLineOption("--dragger <draggername>","Use the specified dragger for manipulation [TabPlaneDragger, TabPlaneTrackballDragger, TrackballDragger, Translate1DDragger, Translate2DDragger, TranslateAxisDragger, TabBoxDragger, TranslatePlaneDragger, Scale1DDragger, Scale2DDragger, RotateCylinderDragger, RotateSphereDragger]");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--fixedDraggerSize","Fix the size of the dragger geometry in the screen space");
|
|
|
|
bool fixedSizeInScreen = false;
|
|
while (arguments.read("--fixedDraggerSize")) { fixedSizeInScreen = true; }
|
|
|
|
// construct the viewer.
|
|
osgViewer::Viewer viewer;
|
|
|
|
// get details on keyboard and mouse bindings used by the viewer.
|
|
viewer.getUsage(*arguments.getApplicationUsage());
|
|
|
|
// if user request help write it out to cout.
|
|
bool helpAll = arguments.read("--help-all");
|
|
unsigned int helpType = ((helpAll || arguments.read("-h") || arguments.read("--help"))? osg::ApplicationUsage::COMMAND_LINE_OPTION : 0 ) |
|
|
((helpAll || arguments.read("--help-env"))? osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE : 0 ) |
|
|
((helpAll || arguments.read("--help-keys"))? osg::ApplicationUsage::KEYBOARD_MOUSE_BINDING : 0 );
|
|
if (helpType)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout, helpType);
|
|
return 1;
|
|
}
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
std::string dragger_name = "TabBoxDragger";
|
|
arguments.read("--dragger", dragger_name);
|
|
|
|
osg::Timer_t start_tick = osg::Timer::instance()->tick();
|
|
|
|
// read the scene from the list of file specified command line args.
|
|
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
|
|
|
|
// if no model has been successfully loaded report failure.
|
|
bool tragger2Scene(true);
|
|
if (!loadedModel)
|
|
{
|
|
//std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
|
|
//return 1;
|
|
loadedModel = createDemoScene(fixedSizeInScreen);
|
|
tragger2Scene=false;
|
|
}
|
|
|
|
// any option left unread are converted into errors to write out later.
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
}
|
|
|
|
osg::Timer_t end_tick = osg::Timer::instance()->tick();
|
|
|
|
std::cout << "Time to load = "<<osg::Timer::instance()->delta_s(start_tick,end_tick)<<std::endl;
|
|
|
|
|
|
// optimize the scene graph, remove redundant nodes and state etc.
|
|
osgUtil::Optimizer optimizer;
|
|
optimizer.optimize(loadedModel.get());
|
|
|
|
|
|
// pass the loaded scene graph to the viewer.
|
|
if ( tragger2Scene ) {
|
|
viewer.setSceneData(addDraggerToScene(loadedModel.get(), dragger_name, fixedSizeInScreen));
|
|
} else {
|
|
viewer.setSceneData(loadedModel.get());
|
|
}
|
|
|
|
|
|
return viewer.run();
|
|
}
|
|
|