OglFrame.py :  » Development » PyObjC » trunk » pyobjc » PyOpenGL-2.0.2.01 » OpenGL » Demo » dek » OglSurface » Python Open Source

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Python Open Source » Development » PyObjC 
PyObjC » trunk » pyobjc » PyOpenGL 2.0.2.01 » OpenGL » Demo » dek » OglSurface » OglFrame.py
#!/usr/bin/env python

# This is statement is required by the build system to query build info
if __name__ == '__build__':
  raise Exception


import sys
import string
from OpenGL.GL import *
from OpenGL.Tk import *
from Numeric import *
import Image

WIDTH=800
HEIGHT=600

class OglFrame:
  def Redraw(self, event=None):
    glDisable(GL_LIGHTING)
    glBegin(GL_LINES)

## +x axis points left
    glColor3f(1,0,0)
    glVertex3fv([0,0,0])
    glVertex3fv(self.axispoints[0].tolist())

## +y axis points up
    glColor3f(0,1,0)
    glVertex3fv([0,0,0])
    glVertex3fv(self.axispoints[1].tolist())

## +z-axis points away
    glColor3f(0,0,1)
    glVertex3fv([0,0,0])
    glVertex3fv(self.axispoints[2].tolist())

    glEnd()

  def Photo(self, event=None):
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
    pixels = glReadPixels(0, 0, 
                 self.keywords['width'], self.keywords['height'], 
                 GL_RGBA, GL_UNSIGNED_BYTE)
    im = Image.new("RGB", (self.keywords['width'], self.keywords['height']))
    im.fromstring(pixels)
    im.save(self.imagename)

  def __init__(self, master=None, redraw=None, *arguments, **keywords):
    self.imagename="photo.ppm"
    self.master=master
    self.keywords = keywords
    self.OglFrame = Frame(self.master, width=320, height=200)
    self.OglFrame.pack(side = 'top', expand = 1, fill = 'both')
    self.keywords['double'] = 1
    self.ogl = Opengl(self.OglFrame, self.keywords)
    self.ogl.pack(side = 'top', expand = 1, fill = 'both')
    self.ogl.bind('<Shift-Button-2>', self.Photo)
    self.ogl.bind('<Button-2>',self.ogl.tkRecordMouse)
    self.ogl.bind('<B2-Motion>', self.ogl.tkTranslate)
    self.ogl.bind('<Button-1>', self.ogl.StartRotate)
    self.ogl.bind('<B1-Motion>', self.ogl.tkRotate)
    self.ogl.bind('<Button-3>', self.ogl.tkRecordMouse)
    self.ogl.bind('<B3-Motion>', self.ogl.tkScale)

    glBlendFunc(GL_SRC_ALPHA,  GL_ONE_MINUS_SRC_ALPHA);    
    glEnable(GL_BLEND);
    glEnable(GL_LINE_SMOOTH);

    self.ogl.set_background(0,0,0)

    if redraw == None:
      self.ogl.redraw=self.Redraw
    else:
      self.ogl.redraw=redraw

    self.mainloop=self.ogl.mainloop
    

    self.axispoints = identity((3))

if __name__ == '__main__':
  x= OglFrame(None, 
        None,
        width=320,
        height=200,
        double=1,
        depth=1)
  x.mainloop()
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