SIP4 python bindings for TQt
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 ``````#!/usr/bin/env python import sys import math from python_tqt.qt import * from python_tqt.qtgl import * from OpenGL.GL import * def gear(inner_radius,outer_radius,width,teeth,tooth_depth): r0 = inner_radius; r1 = outer_radius - tooth_depth/2.0; r2 = outer_radius + tooth_depth/2.0; da = 2.0*math.pi/teeth/4.0; glShadeModel(GL_FLAT) glNormal3f(0.0,0.0,1.0) # draw front face glBegin(GL_QUAD_STRIP) for i in range(teeth+1): angle = i * 2.0*math.pi/teeth; glVertex3f(r0*math.cos(angle), r0*math.sin(angle), width*0.5 ) glVertex3f(r1*math.cos(angle), r1*math.sin(angle), width*0.5 ) glVertex3f(r0*math.cos(angle), r0*math.sin(angle), width*0.5 ) glVertex3f(r1*math.cos(angle+3*da), r1*math.sin(angle+3*da), width*0.5 ) glEnd() # draw front sides of teeth da = 2.0*math.pi/teeth/4.0; glBegin(GL_QUADS) for i in range(teeth): angle = i*2.0*math.pi/teeth glVertex3f( r1*math.cos(angle), r1*math.sin(angle), width*0.5 ) glVertex3f( r2*math.cos(angle+da), r2*math.sin(angle+da), width*0.5 ) glVertex3f( r2*math.cos(angle+2*da), r2*math.sin(angle+2*da), width*0.5 ) glVertex3f( r1*math.cos(angle+3*da), r1*math.sin(angle+3*da), width*0.5 ) glEnd() glNormal3f( 0.0, 0.0, -1.0 ) # draw back face glBegin( GL_QUAD_STRIP ); for i in range(teeth+1): angle = i*2.0*math.pi/teeth; glVertex3f( r1*math.cos(angle), r1*math.sin(angle), -width*0.5 ) glVertex3f( r0*math.cos(angle), r0*math.sin(angle), -width*0.5 ) glVertex3f( r1*math.cos(angle+3*da), r1*math.sin(angle+3*da), -width*0.5 ) glVertex3f( r0*math.cos(angle), r0*math.sin(angle), -width*0.5 ) glEnd() # draw back sides of teeth da = 2.0*math.pi/teeth/4.0 glBegin( GL_QUADS ) for i in range(teeth): angle = i*2.0*math.pi/teeth glVertex3f( r1*math.cos(angle+3*da), r1*math.sin(angle+3*da), -width*0.5 ) glVertex3f( r2*math.cos(angle+2*da), r2*math.sin(angle+2*da), -width*0.5 ) glVertex3f( r2*math.cos(angle+da), r2*math.sin(angle+da), -width*0.5 ) glVertex3f( r1*math.cos(angle), r1*math.sin(angle), -width*0.5 ) glEnd() # draw outward faces of teeth glBegin( GL_QUAD_STRIP ) for i in range(teeth): angle = i*2.0*math.pi/teeth glVertex3f( r1*math.cos(angle), r1*math.sin(angle), width*0.5 ) glVertex3f( r1*math.cos(angle), r1*math.sin(angle), -width*0.5 ) u = r2*math.cos(angle+da) - r1*math.cos(angle) v = r2*math.sin(angle+da) - r1*math.sin(angle) len = math.sqrt( u*u + v*v ) u /= len v /= len glNormal3f( v, -u, 0.0 ) glVertex3f( r2*math.cos(angle+da), r2*math.sin(angle+da), width*0.5 ) glVertex3f( r2*math.cos(angle+da), r2*math.sin(angle+da), -width*0.5 ) glNormal3f( math.cos(angle), math.sin(angle), 0.0 ) glVertex3f( r2*math.cos(angle+2*da), r2*math.sin(angle+2*da), width*0.5 ) glVertex3f( r2*math.cos(angle+2*da), r2*math.sin(angle+2*da), -width*0.5 ) u = r1*math.cos(angle+3*da) - r2*math.cos(angle+2*da) v = r1*math.sin(angle+3*da) - r2*math.sin(angle+2*da) glNormal3f( v, -u, 0.0 ) glVertex3f( r1*math.cos(angle+3*da), r1*math.sin(angle+3*da), width*0.5 ) glVertex3f( r1*math.cos(angle+3*da), r1*math.sin(angle+3*da), -width*0.5 ) glNormal3f( math.cos(angle), math.sin(angle), 0.0 ) glVertex3f( r1*math.cos(0.0), r1*math.sin(0.0), width*0.5 ) glVertex3f( r1*math.cos(0.0), r1*math.sin(0.0), -width*0.5 ) glEnd() glShadeModel (GL_SMOOTH) # draw inside radius cylinder glBegin( GL_QUAD_STRIP ) for i in range(teeth+1): angle = i * 2.0*math.pi / teeth; glNormal3f( -math.cos(angle), -math.sin(angle), 0.0 ); glVertex3f( r0*math.cos(angle), r0*math.sin(angle), -width*0.5 ); glVertex3f( r0*math.cos(angle), r0*math.sin(angle), width*0.5 ); glEnd() ############################################################################## class GearWidget(TQGLWidget): def __init__(self,parent=None,name=None): TQGLWidget.__init__(self,parent,name) self.angle=0.0 self.view_rotx=0.0 self.view_roty=0.0 self.view_rotz=0.0 self.startTimer(10) def timerEvent(self,event): self.updateGL() def paintGL(self): self.angle = self.angle + 2.0 self.view_rotx = self.view_rotx + 1.0 self.view_roty = self.view_roty + 3.0 self.view_rotz = self.view_rotz + 2.0 glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ) glPushMatrix() glRotatef( self.view_rotx, 1.0, 0.0, 0.0 ) glRotatef( self.view_roty, 0.0, 1.0, 0.0 ) glRotatef( self.view_rotz, 0.0, 0.0, 1.0 ) glPushMatrix() glTranslatef( -3.0, -2.0, 0.0 ) glRotatef( self.angle, 0.0, 0.0, 1.0 ) glCallList(self.gear1) glPopMatrix() glPushMatrix() glTranslatef( 3.1, -2.0, 0.0 ) glRotatef( -2.0*self.angle-9.0, 0.0, 0.0, 1.0 ) glCallList(self.gear2) glPopMatrix() glPushMatrix() glTranslatef( -3.1, 2.2, -1.8 ) glRotatef( 90.0, 1.0, 0.0, 0.0 ) glRotatef( 2.0*self.angle-2.0, 0.0, 0.0, 1.0 ) glCallList(self.gear3) glPopMatrix() glPopMatrix() def resizeGL(self,width,height): w = width / float(height) h = 1.0 glViewport( 0, 0, width, height ) glMatrixMode(GL_PROJECTION) glLoadIdentity() glFrustum( -w, w, -h, h, 5.0, 60.0 ) glMatrixMode(GL_MODELVIEW) glLoadIdentity() glTranslatef( 0.0, 0.0, -40.0 ) def initializeGL(self): pos=(5.0, 5.0, 10.0, 1.0 ) ared=(0.8, 0.1, 0.0, 1.0 ) agreen=(0.0, 0.8, 0.2, 1.0 ) ablue=(0.2, 0.2, 1.0, 1.0 ) glLightfv(GL_LIGHT0,GL_POSITION,pos) glEnable(GL_CULL_FACE) glEnable(GL_LIGHTING) glEnable(GL_LIGHT0) glEnable(GL_DEPTH_TEST) self.gear1=glGenLists(1) glNewList(self.gear1,GL_COMPILE) glMaterialfv(GL_FRONT,GL_AMBIENT_AND_DIFFUSE,ared) gear(1.0,4.0,1.0,20,0.7) glEndList() self.gear2=glGenLists(1) glNewList(self.gear2,GL_COMPILE) glMaterialfv(GL_FRONT,GL_AMBIENT_AND_DIFFUSE,agreen) gear(0.5,2.0,2.0,10,0.7) glEndList() self.gear3=glGenLists(1) glNewList(self.gear3,GL_COMPILE) glMaterialfv(GL_FRONT,GL_AMBIENT_AND_DIFFUSE,ablue) gear(1.3,2.0,0.5,10,0.7) glEndList() glEnable(GL_NORMALIZE) ############################################################################## if __name__=='__main__': TQApplication.setColorSpec(TQApplication.CustomColor) app=TQApplication(sys.argv) if not TQGLFormat.hasOpenGL(): raise 'No TQt OpenGL support.' widget=GearWidget() app.setMainWidget(widget) widget.show() app.exec_loop()``````