FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
eb5791e5e2
OpenSceneGraph/examples/osgmanipulator/osgmanipulator.cpp
Robert Osfield e08fd168f6 Build fix 
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14850 16af8721-9629-0410-8352-f15c8da7e697
2015-04-20 10:36:42 +00:00

498 lines
19 KiB
C++
Raw Blame History

/* 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 <osgViewer/ViewerEventHandlers>
#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 <osgManipulator/AntiSquish>
#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(arguments);
// add the window size toggle handler
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
// get details on keyboard and mouse bindings used by the viewer.
viewer.getUsage(*arguments.getApplicationUsage());
if (arguments.read("--test-NodeMask"))
{
const osg::ref_ptr<osg::Group> group = new osg::Group();
group->setNodeMask(0);
const osg::ref_ptr<osgManipulator::AntiSquish> antiSquish = new osgManipulator::AntiSquish();
group->addChild(antiSquish.get());
const osg::ref_ptr<osg::Node> node = new osg::Node();
node->setInitialBound(osg::BoundingSphere(osg::Vec3(0.0, 0.0, 0.0), 1.0));
antiSquish->addChild(node.get());
group->getBound();
return 1;
}
// 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();
}
Reference in New Issue View Git Blame Copy Permalink