SceneGraphViewer::SceneGraphViewer(int numArguments,const char* const arguments[])
{
/* Create a node creator: */
SceneGraph::NodeCreator nodeCreator;
/* Create the scene graph's root node: */
root=new SceneGraph::GroupNode;
/* Load all VRML files from the command line: */
for(int i=0;i<numArguments;++i)
{
IO::AutoFile inputFile(Vrui::openFile(arguments[i]));
SceneGraph::VRMLFile vrmlFile(arguments[i],*inputFile,nodeCreator,getMulticastPipeMultiplexer());
vrmlFile.parse(root);
}
}
SceneGraphViewer::SceneGraphViewer(int numArguments,const char* const arguments[])
{
/* Create a node creator: */
SceneGraph::NodeCreator nodeCreator;
/* Create the scene graph's root node: */
root=new SceneGraph::GroupNode;
/* Load all VRML files from the command line: */
for(int i=0;i<numArguments;++i)
{
Misc::FileCharacterSource inputFile(arguments[i]);
SceneGraph::VRMLFile vrmlFile(arguments[i],inputFile,nodeCreator);
vrmlFile.parse(root);
}
}
VruiSceneGraphDemo::VruiSceneGraphDemo(int& argc,char**& argv)
:Vrui::Application(argc,argv),
mainMenuPopup(0)
{
/* Collect a list of scene graph names to build a menu later: */
std::vector<std::string> sceneGraphNames;
if(argc>1)
{
/*************************************************
Load scene graphs from one or more VRML 2.0 files:
*************************************************/
/* Create a node creator to parse the VRML files: */
SceneGraph::NodeCreator nodeCreator;
/* Load all VRML files from the command line: */
for(int i=1;i<argc;++i)
{
try
{
/* Create the new scene graph's root node: */
SceneGraph::GroupNodePointer root=new SceneGraph::GroupNode;
/* Load and parse the VRML file: */
SceneGraph::VRMLFile vrmlFile(argv[i],Vrui::openFile(argv[i]),nodeCreator,Vrui::getClusterMultiplexer());
vrmlFile.parse(root);
/* Add the new scene graph to the list: */
sceneGraphs.push_back(root);
sceneGraphEnableds.push_back(true);
}
catch(std::runtime_error err)
{
/* Print an error message and try the next file: */
std::cerr<<"Ignoring input file "<<argv[i]<<" due to exception "<<err.what()<<std::endl;
}
/* Remember the name of this scene graph: */
const char* start=argv[i];
const char* end=0;
for(const char* cPtr=argv[i];*cPtr!='\0';++cPtr)
{
if(*cPtr=='/')
{
start=cPtr+1;
end=0;
}
if(*cPtr=='.')
end=cPtr;
}
if(end!=0)
sceneGraphNames.push_back(std::string(start,end));
else
sceneGraphNames.push_back(std::string(start));
}
}
else
{
/* Create a small scene graph: */
SceneGraph::TransformNode* transform=new SceneGraph::TransformNode;
SceneGraph::GroupNodePointer root=transform;
SceneGraph::ShapeNode* shape=new SceneGraph::ShapeNode;
root->children.appendValue(shape);
SceneGraph::AppearanceNode* appearance=new SceneGraph::AppearanceNode;
shape->appearance.setValue(appearance);
SceneGraph::MaterialNode* material=new SceneGraph::MaterialNode;
appearance->material.setValue(material);
material->ambientIntensity.setValue(1.0f);
material->diffuseColor.setValue(SceneGraph::Color(1.0f,0.0f,0.0f));
material->specularColor.setValue(SceneGraph::Color(1.0f,1.0f,1.0f));
material->shininess.setValue(0.2f);
material->update();
appearance->update();
SceneGraph::BoxNode* box=new SceneGraph::BoxNode;
shape->geometry.setValue(box);
box->size.setValue(SceneGraph::Size(2,2,2));
box->update();
shape->update();
root->update();
sceneGraphs.push_back(root);
sceneGraphEnableds.push_back(true);
sceneGraphNames.push_back("Box");
}
/* Create a popup shell to hold the main menu: */
mainMenuPopup=new GLMotif::PopupMenu("MainMenuPopup",Vrui::getWidgetManager());
mainMenuPopup->setTitle("Scene Graph Viewer");
/* Create the main menu itself: */
GLMotif::Menu* mainMenu=new GLMotif::Menu("MainMenu",mainMenuPopup,false);
/* Add a toggle button for each scene graph: */
unsigned int numSceneGraphs=sceneGraphs.size();
for(unsigned int i=0;i<numSceneGraphs;++i)
{
char toggleName[40];
snprintf(toggleName,sizeof(toggleName),"SceneGraphToggle%u",i);
GLMotif::ToggleButton* sceneGraphToggle=new GLMotif::ToggleButton(toggleName,mainMenu,sceneGraphNames[i].c_str());
sceneGraphToggle->setToggle(sceneGraphEnableds[i]);
sceneGraphToggle->getValueChangedCallbacks().add(this,&VruiSceneGraphDemo::sceneGraphToggleCallback,i);
}
mainMenu->manageChild();
Vrui::setMainMenu(mainMenuPopup);
/* Set the navigation transformation: */
SceneGraph::Box bbox=SceneGraph::Box::empty;
for(unsigned int i=0;i<numSceneGraphs;++i)
bbox.addBox(sceneGraphs[i]->calcBoundingBox());
Vrui::setNavigationTransformation(Geometry::mid(bbox.min,bbox.max),Geometry::dist(bbox.min,bbox.max));
}
VruiSceneGraphDemo::VruiSceneGraphDemo(int& argc,char**& argv,char**& appDefaults)
:Vrui::Application(argc,argv,appDefaults)
{
if(argc>1)
{
/*************************************************
Load scene graphs from one or more VRML 2.0 files:
*************************************************/
/* Create a node creator to parse the VRML files: */
SceneGraph::NodeCreator nodeCreator;
/* Create the scene graph's root node: */
root=new SceneGraph::GroupNode;
/* Load all VRML files from the command line: */
for(int i=1;i<argc;++i)
{
try
{
SceneGraph::VRMLFile vrmlFile(argv[i],Vrui::openFile(argv[i]),nodeCreator,Vrui::getClusterMultiplexer());
vrmlFile.parse(root);
}
catch(std::runtime_error err)
{
/* Print an error message and try the next file: */
std::cerr<<"Ignoring input file "<<argv[i]<<" due to exception "<<err.what()<<std::endl;
}
}
}
else
{
/* Create a small scene graph: */
SceneGraph::TransformNode* transform=new SceneGraph::TransformNode;
root=transform;
SceneGraph::ShapeNode* shape=new SceneGraph::ShapeNode;
root->children.appendValue(shape);
SceneGraph::AppearanceNode* appearance=new SceneGraph::AppearanceNode;
shape->appearance.setValue(appearance);
SceneGraph::MaterialNode* material=new SceneGraph::MaterialNode;
appearance->material.setValue(material);
material->ambientIntensity.setValue(1.0f);
material->diffuseColor.setValue(SceneGraph::Color(1.0f,0.0f,0.0f));
material->specularColor.setValue(SceneGraph::Color(1.0f,1.0f,1.0f));
material->shininess.setValue(0.2f);
material->update();
appearance->update();
SceneGraph::BoxNode* box=new SceneGraph::BoxNode;
shape->geometry.setValue(box);
box->size.setValue(SceneGraph::Size(2,2,2));
box->update();
shape->update();
root->update();
}
/* Set the navigation transformation: */
SceneGraph::Box bbox=root->calcBoundingBox();
Vrui::setNavigationTransformation(Geometry::mid(bbox.min,bbox.max),Geometry::dist(bbox.min,bbox.max));
}
