netgen/py_tutorials/csg_first_example.py
Joachim Schoeberl c1935691e2 py visualization
2014-10-10 11:18:51 +00:00

82 lines
1.8 KiB
Python

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()
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
#glutDisplayFunc(vis.Draw) # 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")