pyopengl

libsrc/csg/vscsg.cpp

@@ -548,14 +548,25 @@ BOOST_PYTHON_MODULE(libcsgvis)
     ;
 
   bp::def ("VS", FunctionPointer 
-           ([] (const CSGeometry & geom)
+           ([] (CSGeometry & geom)
             // ([] (shared_ptr<CSGeometry> geom)
             {
+                geom.FindIdenticSurfaces (1e-6);
+                geom.CalcTriangleApproximation (0.01, 20);
+
                 auto vs = make_shared<VisualSceneGeometry>();
               vs->SetGeometry(const_cast<CSGeometry*>(&geom));
               // vs->SetGeometry(geom.get());
               return vs;
             }));
+
+  bp::def ("MouseMove", FunctionPointer 
+           ([] ( VisualSceneGeometry &vsgeom, int oldx, int oldy, int newx, int newy, char mode)
+            // ([] (shared_ptr<CSGeometry> geom)
+            {
+                vsgeom.MouseMove(oldx,oldy,newx,newy,mode);
+            }));
+
 }
 #endif
 

py_tutorials/opengl.py

@@ -0,0 +1,107 @@
+from netgen.csg import *
+import netgen.meshing as meshing
+
+from OpenGL.GL import *
+from OpenGL.GLU import *
+from OpenGL.GLUT import *
+
+
+
+sp1 = Sphere (Pnt(0,0,0), 0.2)
+sp2 = Sphere (Pnt(0.5,0,0), 0.2)
+sp3 = Sphere (Pnt(0,0,0.5), 0.2)
+sp4 = Sphere (Pnt(0,0.2,0.7), 0.2)
+sp5 = Sphere (Pnt(0,0,0.3), 0.2)
+
+
+all = sp1+sp2+sp3+sp4+sp5
+
+
+geom = CSGeometry()
+geom.Add (all)
+
+
+vis = VS(geom)
+# vis.Draw()
+
+
+window = 0                                             # glut window number
+width, height = 500, 500
+
+
+
+def mydraw():
+
+    glViewport(0, 0, width, height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    
+    pnear = 0.1;
+    pfar = 10;
+
+    gluPerspective(20.0, 1.0*width / height, pnear, pfar);
+    glMatrixMode(GL_MODELVIEW);
+    
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
+#    glLoadIdentity()
+#    gluLookAt (0, 0, 6, 0, 0, 0, 0, 1, 0);
+    
+##    glBegin(GL_QUADS)
+##    glColor4d(0.0, 1.0, 0.0, 0.0);
+##    glVertex3d(0.0,0.0,0.7)
+##    glVertex3d(1.0,0.0,2.1)
+##    glColor4d(1.0, 1.0, 1.0, 0.0);
+##    glVertex3d(1.0,1.0,0.2)
+##    glVertex3d(0.0,1.0,0.5)
+##    glEnd()
+     
+    vis.Draw()
+    
+    glutSwapBuffers()
+
+xold = -1;
+yold = -1;
+mode = 'r'
+
+def myMotionHandler( x, y ):
+    global xold, yold
+    MouseMove(vis,xold,yold, x,y, mode)  # 'm','z'
+    xold = x
+    yold = y
+
+def myPassiveMotionHandler( x, y ):
+    global xold, yold
+    xold = x
+    yold = y
+
+def myMouseHandler( button, state, x, y ):
+    print(button,state,x,y)
+    modes = {0:'r', 1:'m', 2:'z'}
+    global mode
+    if button<3:
+        if state==0:
+            mode = modes[button]
+        else:
+            mode = 'r'
+
+
+
+glutInit("mainwin")                                   # initialize glut
+glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_ALPHA | GLUT_DEPTH)
+glutInitWindowSize(width, height)                      # set window size
+glutInitWindowPosition(0, 0)                           # set window position
+window = glutCreateWindow(b"ngs")                      # create window with title
+glutMotionFunc(myMotionHandler)
+glutMouseFunc(myMouseHandler)
+glutPassiveMotionFunc(myPassiveMotionHandler)
+glutDisplayFunc(mydraw)                                 # set draw function callback
+glutIdleFunc(mydraw)                                     # draw all the time
+glutMainLoop()        
+
+
+
+# param = meshing.MeshingParameters(maxh=0.2)
+# mesh = GenerateMesh (geom, param)
+# mesh.Save ("test.vol")
+