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June 25, 2015 22:44
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Hellogl by Riverbank
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| #!/usr/bin/env python | |
| ############################################################################# | |
| ## | |
| ## Copyright (C) 2010 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 PyQt4 import QtCore, QtGui, QtOpenGL | |
| try: | |
| from OpenGL import GL | |
| except ImportError: | |
| app = QtGui.QApplication(sys.argv) | |
| QtGui.QMessageBox.critical(None, "OpenGL hellogl", | |
| "PyOpenGL must be installed to run this example.") | |
| sys.exit(1) | |
| class Window(QtGui.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 = QtGui.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 = QtGui.QSlider(QtCore.Qt.Vertical) | |
| slider.setRange(0, 360 * 16) | |
| slider.setSingleStep(16) | |
| slider.setPageStep(15 * 16) | |
| slider.setTickInterval(15 * 16) | |
| slider.setTickPosition(QtGui.QSlider.TicksRight) | |
| return slider | |
| class GLWidget(QtOpenGL.QGLWidget): | |
| xRotationChanged = QtCore.pyqtSignal(int) | |
| yRotationChanged = QtCore.pyqtSignal(int) | |
| zRotationChanged = QtCore.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 = QtCore.QPoint() | |
| self.trolltechGreen = QtGui.QColor.fromCmykF(0.40, 0.0, 1.0, 0.0) | |
| self.trolltechPurple = QtGui.QColor.fromCmykF(0.39, 0.39, 0.0, 0.0) | |
| def minimumSizeHint(self): | |
| return QtCore.QSize(50, 50) | |
| def sizeHint(self): | |
| return QtCore.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.dark()) | |
| 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() & QtCore.Qt.LeftButton: | |
| self.setXRotation(self.xRot + 8 * dy) | |
| self.setYRotation(self.yRot + 8 * dx) | |
| elif event.buttons() & QtCore.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.dark(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 = QtGui.QApplication(sys.argv) | |
| window = Window() | |
| window.show() | |
| sys.exit(app.exec_()) |
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How to install qt on mac
Install requirements with brew or you can install by your own.
And run demo. For example,
The following youtube video is really helpful!