#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
## the names of its contributors may be used to endorse or promote
## products derived from this software without specific prior written
## permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
## $QT_END_LICENSE$
##
#############################################################################
import sys
import math
from PyQt5.QtCore import pyqtSignal, QPoint, QSize, Qt
from PyQt5.QtGui import QColor
from PyQt5.QtWidgets import (QApplication, QHBoxLayout, QMessageBox, QSlider,
QWidget)
from PyQt5.QtOpenGL import QGLWidget
try:
from OpenGL import GL
except ImportError:
app = QApplication(sys.argv)
QMessageBox.critical(None, "OpenGL hellogl",
"PyOpenGL must be installed to run this example.")
sys.exit(1)
class Window(QWidget):
def __init__(self):
super(Window, self).__init__()
self.glWidget = GLWidget()
self.xSlider = self.createSlider()
self.ySlider = self.createSlider()
self.zSlider = self.createSlider()
self.xSlider.valueChanged.connect(self.glWidget.setXRotation)
self.glWidget.xRotationChanged.connect(self.xSlider.setValue)
self.ySlider.valueChanged.connect(self.glWidget.setYRotation)
self.glWidget.yRotationChanged.connect(self.ySlider.setValue)
self.zSlider.valueChanged.connect(self.glWidget.setZRotation)
self.glWidget.zRotationChanged.connect(self.zSlider.setValue)
mainLayout = QHBoxLayout()
mainLayout.addWidget(self.glWidget)
mainLayout.addWidget(self.xSlider)
mainLayout.addWidget(self.ySlider)
mainLayout.addWidget(self.zSlider)
self.setLayout(mainLayout)
self.xSlider.setValue(15 * 16)
self.ySlider.setValue(345 * 16)
self.zSlider.setValue(0 * 16)
self.setWindowTitle("Hello GL")
def createSlider(self):
slider = QSlider(Qt.Vertical)
slider.setRange(0, 360 * 16)
slider.setSingleStep(16)
slider.setPageStep(15 * 16)
slider.setTickInterval(15 * 16)
slider.setTickPosition(QSlider.TicksRight)
return slider
class GLWidget(QGLWidget):
xRotationChanged = pyqtSignal(int)
yRotationChanged = pyqtSignal(int)
zRotationChanged = pyqtSignal(int)
def __init__(self, parent=None):
super(GLWidget, self).__init__(parent)
self.object = 0
self.xRot = 0
self.yRot = 0
self.zRot = 0
self.lastPos = QPoint()
self.trolltechGreen = QColor.fromCmykF(0.40, 0.0, 1.0, 0.0)
self.trolltechPurple = QColor.fromCmykF(0.39, 0.39, 0.0, 0.0)
def minimumSizeHint(self):
return QSize(50, 50)
def sizeHint(self):
return QSize(400, 400)
def setXRotation(self, angle):
angle = self.normalizeAngle(angle)
if angle != self.xRot:
self.xRot = angle
self.xRotationChanged.emit(angle)
self.updateGL()
def setYRotation(self, angle):
angle = self.normalizeAngle(angle)
if angle != self.yRot:
self.yRot = angle
self.yRotationChanged.emit(angle)
self.updateGL()
def setZRotation(self, angle):
angle = self.normalizeAngle(angle)
if angle != self.zRot:
self.zRot = angle
self.zRotationChanged.emit(angle)
self.updateGL()
def initializeGL(self):
self.qglClearColor(self.trolltechPurple.darker())
self.object = self.makeObject()
GL.glShadeModel(GL.GL_FLAT)
GL.glEnable(GL.GL_DEPTH_TEST)
GL.glEnable(GL.GL_CULL_FACE)
def paintGL(self):
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
GL.glLoadIdentity()
GL.glTranslated(0.0, 0.0, -10.0)
GL.glRotated(self.xRot / 16.0, 1.0, 0.0, 0.0)
GL.glRotated(self.yRot / 16.0, 0.0, 1.0, 0.0)
GL.glRotated(self.zRot / 16.0, 0.0, 0.0, 1.0)
GL.glCallList(self.object)
def resizeGL(self, width, height):
side = min(width, height)
if side < 0:
return
GL.glViewport((width - side) // 2, (height - side) // 2, side, side)
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glLoadIdentity()
GL.glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0)
GL.glMatrixMode(GL.GL_MODELVIEW)
def mousePressEvent(self, event):
self.lastPos = event.pos()
def mouseMoveEvent(self, event):
dx = event.x() - self.lastPos.x()
dy = event.y() - self.lastPos.y()
if event.buttons() & Qt.LeftButton:
self.setXRotation(self.xRot + 8 * dy)
self.setYRotation(self.yRot + 8 * dx)
elif event.buttons() & Qt.RightButton:
self.setXRotation(self.xRot + 8 * dy)
self.setZRotation(self.zRot + 8 * dx)
self.lastPos = event.pos()
def makeObject(self):
genList = GL.glGenLists(1)
GL.glNewList(genList, GL.GL_COMPILE)
GL.glBegin(GL.GL_QUADS)
x1 = +0.06
y1 = -0.14
x2 = +0.14
y2 = -0.06
x3 = +0.08
y3 = +0.00
x4 = +0.30
y4 = +0.22
self.quad(x1, y1, x2, y2, y2, x2, y1, x1)
self.quad(x3, y3, x4, y4, y4, x4, y3, x3)
self.extrude(x1, y1, x2, y2)
self.extrude(x2, y2, y2, x2)
self.extrude(y2, x2, y1, x1)
self.extrude(y1, x1, x1, y1)
self.extrude(x3, y3, x4, y4)
self.extrude(x4, y4, y4, x4)
self.extrude(y4, x4, y3, x3)
NumSectors = 200
for i in range(NumSectors):
angle1 = (i * 2 * math.pi) / NumSectors
x5 = 0.30 * math.sin(angle1)
y5 = 0.30 * math.cos(angle1)
x6 = 0.20 * math.sin(angle1)
y6 = 0.20 * math.cos(angle1)
angle2 = ((i + 1) * 2 * math.pi) / NumSectors
x7 = 0.20 * math.sin(angle2)
y7 = 0.20 * math.cos(angle2)
x8 = 0.30 * math.sin(angle2)
y8 = 0.30 * math.cos(angle2)
self.quad(x5, y5, x6, y6, x7, y7, x8, y8)
self.extrude(x6, y6, x7, y7)
self.extrude(x8, y8, x5, y5)
GL.glEnd()
GL.glEndList()
return genList
def quad(self, x1, y1, x2, y2, x3, y3, x4, y4):
self.qglColor(self.trolltechGreen)
GL.glVertex3d(x1, y1, -0.05)
GL.glVertex3d(x2, y2, -0.05)
GL.glVertex3d(x3, y3, -0.05)
GL.glVertex3d(x4, y4, -0.05)
GL.glVertex3d(x4, y4, +0.05)
GL.glVertex3d(x3, y3, +0.05)
GL.glVertex3d(x2, y2, +0.05)
GL.glVertex3d(x1, y1, +0.05)
def extrude(self, x1, y1, x2, y2):
self.qglColor(self.trolltechGreen.darker(250 + int(100 * x1)))
GL.glVertex3d(x1, y1, +0.05)
GL.glVertex3d(x2, y2, +0.05)
GL.glVertex3d(x2, y2, -0.05)
GL.glVertex3d(x1, y1, -0.05)
def normalizeAngle(self, angle):
while angle < 0:
angle += 360 * 16
while angle > 360 * 16:
angle -= 360 * 16
return angle
if __name__ == '__main__':
app = QApplication(sys.argv)
window = Window()
window.show()
sys.exit(app.exec_())
