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Updates from Geoff Michel to geo loader and demo.

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This commit is contained in:
Robert Osfield
2002-12-10 20:00:56 +00:00
parent 64c5fb644a
commit 530b85c807
15 changed files with 3606 additions and 2204 deletions
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106
src/Demos/osggeodemo/osggeodemo.cpp
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@@ -16,6 +16,7 @@
#include <osgGA/DriveManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgDB/WriteFile>
#include <osgUtil/Optimizer>
@@ -65,8 +66,9 @@ class geodemoEventHandler : public osgGA::GUIEventHandler
{
public:
geodemoEventHandler( ) {speed=0; heading=0; mouse_x=mouse_y=0;}
geodemoEventHandler( ) { mouse_x=mouse_y=0;}
virtual ~geodemoEventHandler( ) {}
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
{
mouse_x=ea.getX();
@@ -79,49 +81,47 @@ public:
{
v.visit(*this);
}
void moveit(userVars *l)
{
std::vector<geoValue> *lvals=l->getvars();
for (std::vector<geoValue>::iterator itr=lvals->begin();
itr!=lvals->end();
++itr) {// for each user var
if (itr->getName() == "xpos") {
itr->setVal((*itr->getValue())+speed*sin(heading));
// std::cout << " nx " << (*itr->getValue()) ;
} else if (itr->getName() == "ypos") {
itr->setVal((*itr->getValue())+speed*cos(heading));
// std::cout << " ny " << (*itr->getValue()) ;
} else if (itr->getName() == "sped") {
itr->setVal(0.00025*(mouse_y-300));
speed=(*itr->getValue());
// std::cout << " nspd " << speed << std::endl;
} else if (itr->getName() == "heading") {
itr->setVal((*itr->getValue())-0.0001*(mouse_x-400));
heading=(*itr->getValue());
// std::cout << " nhdg " << heading << std::endl;
} else if (itr->getName() == "conerot") {
itr->setVal((mouse_x-400));
} else if (itr->getName() == "planrot") {
itr->setVal((mouse_y-300)/200.0);
}
}
}
inline int getMouseX(void) {return mouse_x;};
inline int getMouseY(void) {return mouse_y;};
private:
int mouse_x, mouse_y;
float speed, heading;
};
static geodemoEventHandler *ghand=NULL;
inline double DEG2RAD(const double val) { return val*0.0174532925199432957692369076848861;}
inline double RAD2DEG(const double val) { return val*57.2957795130823208767981548141052;}
void moveit(const double t, userVars *l,userVars *e)
{ // all the local and external variables declared in the geo modeller are here available.
ghand->moveit(l);
double dodynamics(const double time, const double val, const std::string name)
{ // Each local variable named 'name' declared in the geo modeller is passed into here.
// its current value is val; returns new value. Time - elapsed time
static double heading,speed; // these are only required for my 'dynamics'
if (name == "xpos") {
return (val+speed*sin(heading));
// std::cout << " nx " << (*itr->getValue()) ;
} else if (name == "ypos") {
return (val+speed*cos(heading));
// std::cout << " ny " << (*itr->getValue()) ;
} else if (name == "sped") {
speed=(0.00025*(ghand->getMouseY()-300)); // (*itr->getValue());
return (speed);
} else if (name == "heading") {
heading-= 0.01*DEG2RAD(ghand->getMouseX()-400); // =DEG2RAD(*itr->getValue());
return (RAD2DEG(heading));
} else if (name == "conerot") {
return ((ghand->getMouseX()-400));
} else if (name == "planrot") {
return ((ghand->getMouseY()-300)/200.0);
} else if (name == "secint" || name == "minutehand"|| name == "hourhand") {
// std::cout << " updating " << name << " " << val << std::endl;
}
return val;
}
int main( int argc, char **argv )
{
std::string pathfile;
float camera_fov=-1;
// initialize the GLUT
glutInit( &argc, argv );
@@ -142,6 +142,9 @@ int main( int argc, char **argv )
}
else
pathfile = std::string(argv[++i]);
} else if( std::string(argv[i]) == "-fov" ) {
camera_fov=atof(argv[i+1]);
++i; // skip the value
}
else
commandLine.push_back(argv[i]);
@@ -150,6 +153,28 @@ int main( int argc, char **argv )
// initialize the viewer.
osgGLUT::Viewer viewer;
viewer.setWindowTitle(argv[0]);
// geoff's path code.. needs replacing as it isn't cross platform.
// {
// char *gdpath=getenv("PATH");
// int lenpath=(gdpath ? strlen(gdpath):1) + strlen(argv[0]);
// char *nupath=new char[lenpath+20];
//
// strcpy(nupath,"PATH=");
// strcat(nupath,argv[0]);
// // strip the executable name (xxx.exe)
// char *epath=strrchr(nupath, '\\');
// if (epath) *epath='\0'; // remove executable
// else {
// epath=strrchr(nupath, '/');
// if (epath) *epath='\0'; // remove executable, UNIX style path
// }
// strcat(nupath,";");
// strcat(nupath,gdpath);
// _putenv(nupath);
// delete [] nupath;
// }
// std::cout << "Path " << getenv("PATH") << std::endl;
// configure the viewer from the commandline arguments, and eat any
// parameters that have been matched.
@@ -188,10 +213,9 @@ int main( int argc, char **argv )
}
geoHeader *gh = dynamic_cast<geoHeader *>(rootnode);
if (gh)
{ // it is a geo file, so set function to update its animation variables.
if (gh) { // it is a geo file, so set function to update its animation variables.
ghand=new geodemoEventHandler();
gh->setUserUpdate(moveit);
gh->setUserUpdate(dodynamics);
viewer.prependEventHandler(ghand);
} else { // maybe a group with geo models below.
osg::Group *gpall=dynamic_cast<osg::Group *>(rootnode);
@@ -203,14 +227,18 @@ int main( int argc, char **argv )
if (gh)
{
ghand=new geodemoEventHandler();
gh->setUserUpdate(moveit);
gh->setUserUpdate(dodynamics);
viewer.prependEventHandler(ghand);
}
}
}
}
// open the viewer window.
osgUtil::SceneView *sc=viewer.getViewportSceneView(0);
if (sc && camera_fov>0) {
osg::Camera *cm=sc->getCamera();
if (cm) cm->setFOV(camera_fov,camera_fov*(600.0f/800.0f),1.0f,1000.0f);
}
// open the viewer window.
viewer.open();
// fire up the event loop.