Changeset 2039 for OpenSceneGraph/trunk/examples/osgunittests/osgunittests.cpp

Timestamp:

07/16/03 22:14:48 (10 years ago)

Author:

robert

Message:

Added osg::Matrix::getOtho,getFrustum and getLookAt() methods.

Added test for new matrix methods into unit tests example, but these really
should go in their own lib...

Files:

• OpenSceneGraph/trunk/examples/osgunittests/osgunittests.cpp (modified) (3 diffs)

OpenSceneGraph/trunk/examples/osgunittests/osgunittests.cpp

@@ -2 +2 @@
 #include <osg/ArgumentParser>
 #include <osg/ApplicationUsage>
+
+#include <osg/Matrix>
+
+
+void testFrustum(double left,double right,double bottom,double top,double zNear,double zFar)
+{
+    osg::Matrix f;
+    f.makeFrustum(left,right,bottom,top,zNear,zFar);
+
+    
+    double c_zNear = f(3,2) / (f(2,2)-1.0f);
+    double c_zFar = f(3,2) / (1.0f+f(2,2));
+    
+    double c_left = c_zNear * (f(2,0)-1.0f) / f(0,0);
+    double c_right = c_zNear * (1.0f+f(2,0)) / f(0,0);
+
+    double c_top = c_zNear * (1+f(2,1)) / f(1,1);
+    double c_bottom = c_zNear * (f(2,1)-1.0f) / f(1,1);
+    
+    f.getFrustum(c_left,c_right,c_bottom,c_top,c_zNear,c_zFar);
+
+    std::cout << "testFrustum"<<std::endl;
+    std::cout << "  left = "<<left<<" compute "<<c_left<<std::endl;
+    std::cout << "  right = "<<right<<" compute "<<c_right<<std::endl;
+
+    std::cout << "  bottom = "<<bottom<<" compute "<<c_bottom<<std::endl;
+    std::cout << "  top = "<<top<<" compute "<<c_top<<std::endl;
+
+    std::cout << "  zNear = "<<zNear<<" compute "<<c_zNear<<std::endl;
+    std::cout << "  zFar = "<<zFar<<" compute "<<c_zFar<<std::endl;
+    
+    std::cout << std::endl;
+}
+
+void testOrtho(double left,double right,double bottom,double top,double zNear,double zFar)
+{
+    osg::Matrix f;
+    f.makeOrtho(left,right,bottom,top,zNear,zFar);
+
+    double c_zNear = (f(3,2)+1.0f) / f(2,2);
+    double c_zFar = (f(3,2)-1.0f) / f(2,2);
+    
+    double c_left = -(1.0f+f(3,0)) / f(0,0);
+    double c_right = (1.0f-f(3,0)) / f(0,0);
+
+    double c_bottom = -(1.0f+f(3,1)) / f(1,1);
+    double c_top = (1.0f-f(3,1)) / f(1,1);
+    
+    f.getOrtho(c_left,c_right,c_bottom,c_top,c_zNear,c_zFar);
+
+
+    std::cout << "testOrtho"<<std::endl;
+    std::cout << "  left = "<<left<<" compute "<<c_left<<std::endl;
+    std::cout << "  right = "<<right<<" compute "<<c_right<<std::endl;
+
+    std::cout << "  bottom = "<<bottom<<" compute "<<c_bottom<<std::endl;
+    std::cout << "  top = "<<top<<" compute "<<c_top<<std::endl;
+
+    std::cout << "  zNear = "<<zNear<<" compute "<<c_zNear<<std::endl;
+    std::cout << "  zFar = "<<zFar<<" compute "<<c_zFar<<std::endl;
+    
+    std::cout << std::endl;
+}
+
+void testLookAt(const osg::Vec3& eye,const osg::Vec3& center,const osg::Vec3& up)
+{
+    osg::Matrix mv;
+    mv.makeLookAt(eye,center,up);
+    
+    osg::Vec3 c_eye,c_center,c_up;
+    mv.getLookAt(c_eye,c_center,c_up);
+    
+    std::cout << "testLookAt"<<std::endl;
+    std::cout << "  eye "<<eye<< " compute "<<c_eye<<std::endl;
+    std::cout << "  eye "<<center<< " compute "<<c_center<<std::endl;
+    std::cout << "  eye "<<up<< " compute "<<c_up<<std::endl;
+    
+    std::cout << std::endl;
+    
+}
 
 int main( int argc, char** argv )
@@ -12 +92 @@
     arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
     arguments.getApplicationUsage()->addCommandLineOption("qt","Display qualified tests.");
+    arguments.getApplicationUsage()->addCommandLineOption("matrix","Display qualified tests.");
  
+
+    if (arguments.argc()<=1)
+    {
+        arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
+        return 1;
+    }
 
     bool printQualifiedTest = false; 
     while (arguments.read("qt")) printQualifiedTest = true; 
+
+    bool displayMatrixTest = false; 
+    while (arguments.read("matrix")) displayMatrixTest = true; 
 
     // if user request help write it out to cout.
@@ -35 +125 @@
     }
     
-    if (arguments.argc()<=1)
+
+    if (displayMatrixTest)
     {
-        arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
-        return 1;
+        std::cout<<"******   Running matrix tests   ******"<<std::endl;
+
+        testFrustum(-1,1,-1,1,1,1000);
+        testFrustum(0,1,1,2,2.5,100000);
+
+        testOrtho(0,1,1,2,2.1,1000);
+        testOrtho(-1,10,1,20,2.5,100000);
+
+        testLookAt(osg::Vec3(10.0,4.0,2.0),osg::Vec3(10.0,4.0,2.0)+osg::Vec3(0.0,1.0,0.0),osg::Vec3(0.0,0.0,1.0));
+        testLookAt(osg::Vec3(10.0,4.0,2.0),osg::Vec3(10.0,4.0,2.0)+osg::Vec3(1.0,1.0,0.0),osg::Vec3(0.0,0.0,1.0));
+
     }