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opengl

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This commit is contained in:
Joachim Schoeberl 2014-10-06 20:01:44 +00:00
parent ece18134d1
commit e456fce948
2 changed files with 80 additions and 32 deletions
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66
py_tutorials/csg_first_example.py
View File

@ -1,12 +1,20 @@
from netgen.csg import *
import netgen.meshing as meshing
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
sp1 = Sphere (Point3d(1,0,0), 1)
sp2 = Sphere (Point3d(2,0,0), 1)
both = Or(sp1, sp2)
all = And (both, OrthoBrick ( Point3d(0,0,0), Point3d (3,0.5,1)))
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()
@ -14,8 +22,58 @@ 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)

44
py_tutorials/opengl.py
View File

@ -31,35 +31,10 @@ 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'
@ -69,6 +44,7 @@ def myMotionHandler( x, y ):
MouseMove(vis,xold,yold, x,y, mode) # 'm','z'
xold = x
yold = y
mydraw()
def myPassiveMotionHandler( x, y ):
global xold, yold
@ -92,11 +68,25 @@ 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
# glutIdleFunc(mydraw) # draw all the time
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
pnear = 0.1;
pfar = 10;
gluPerspective(20.0, 1.0*width / height, pnear, pfar);
glViewport(0, 0, width, height);
glMatrixMode(GL_MODELVIEW);
glutMainLoop()