我需要使用PyQt5中的滑块旋转3D对象。 我可以显示自定义立方体或导入的3d网格文件，但是无法将旋转与滑块连接。 我研究了一个示例，并尝试使用滑块旋转多维数据集。 我添加了滑块，添加了多维数据集，我可以使用“打印”方法获取滑块值。但是不能旋转盒子。 下面是我的代码：
'''
from PyQt5 import QtCore # core Qt functionality
from PyQt5 import QtGui # extends QtCore with GUI functionality
from PyQt5 import QtOpenGL # provides QGLWidget, a special OpenGL QWidget
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
import OpenGL.GL as gl # python wrapping of OpenGL
from OpenGL import GLU # OpenGL Utility Library, extends OpenGL functionality
import sys # we'll need this later to run our Qt application
from OpenGL.arrays import vbo
import numpy as np
class Window(QtWidgets.QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("gl box")
self.setGeometry(0, 0, 300, 300)
self.glWidget = GLWidget
self.initGUI()
timer = QtCore.QTimer(self)
timer.setInterval(20) # period, in milliseconds
timer.timeout.connect(self.glWidget.updateGL)
timer.start()
def initGUI(self):
glWidget = GLWidget(self)
self.s1 = QSlider(Qt.Horizontal)
self.s1.valueChanged.connect(lambda val: glWidget.setRotX(val))
self.s1.setMaximum(90)
self.s1.setMinimum(0)
self.s2 = QSlider(Qt.Horizontal)
self.s2.valueChanged.connect(lambda val: glWidget.setRotY(val))
self.s2.setMaximum(90)
self.s2.setMinimum(0)
self.s3 = QSlider(Qt.Horizontal)
self.s3.valueChanged.connect(lambda val: glWidget.setRotZ(val))
self.s3.setMaximum(90)
self.s3.setMinimum(0)
layout = QtWidgets.QVBoxLayout(self)
layout.addWidget(glWidget)
layout.addWidget((self.s1))
layout.addWidget((self.s2))
layout.addWidget((self.s3))
self.glWidget = GLWidget(self)
# self.initGUI()
self.show()
class GLWidget(QtOpenGL.QGLWidget):
def __init__(self, parent=None):
self.parent = parent
QtOpenGL.QGLWidget.__init__(self, parent)
def initializeGL(self):
self.qglClearColor(QtGui.QColor(0, 0, 255)) # initialize the screen to blue
gl.glEnable(gl.GL_DEPTH_TEST) # enable depth testing
self.initGeometry()
self.rotX = 0.0
self.rotY = 0.0
self.rotZ = 0.0
def resizeGL(self, width, height):
gl.glViewport(0, 0, width, height)
gl.glMatrixMode(gl.GL_PROJECTION)
gl.glLoadIdentity()
aspect = width / float(height)
GLU.gluPerspective(45.0, aspect, 1.0, 100.0)
gl.glMatrixMode(gl.GL_MODELVIEW)
def paintGL(self):
gl.glClear(gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
gl.glPushMatrix() # push the current matrix to the current stack
gl.glTranslate(0.0, 0.0, -50.0) # third, translate cube to specified depth
gl.glScale(20.0, 20.0, 20.0) # second, scale cube
#gl.glRotated(30, 0.5, 0.0, 0.0)
gl.glRotated(self.rotX, 1.0, 0.0, 0.0)
gl.glRotated(self.rotY, 0.0, 1.0, 0.0)
gl.glRotated(self.rotZ, 0.0, 0.0, 1.0)
gl.glTranslate(-0.5, -0.5, -0.5) # first, translate cube center to origin
gl.glEnableClientState(gl.GL_VERTEX_ARRAY)
gl.glEnableClientState(gl.GL_COLOR_ARRAY)
gl.glVertexPointer(3, gl.GL_FLOAT, 0, self.vertVBO)
gl.glColorPointer(3, gl.GL_FLOAT, 0, self.colorVBO)
gl.glDrawElements(gl.GL_QUADS, len(self.cubeIdxArray), gl.GL_UNSIGNED_INT, self.cubeIdxArray)
gl.glDisableClientState(gl.GL_VERTEX_ARRAY)
gl.glDisableClientState(gl.GL_COLOR_ARRAY)
gl.glPopMatrix() # restore the previous modelview matrix
def initGeometry(self):
self.cubeVtxArray = np.array(
[[0.0, 0.0, 0.0],
[1.0, 0.0, 0.0],
[1.0, 1.0, 0.0],
[0.0, 1.0, 0.0],
[0.0, 0.0, 1.0],
[1.0, 0.0, 1.0],
[1.0, 1.0, 1.0],
[0.0, 1.0, 1.0]])
self.vertVBO = vbo.VBO(np.reshape(self.cubeVtxArray,
(1, -1)).astype(np.float32))
self.vertVBO.bind()
self.cubeClrArray = np.array(
[[0.0, 0.0, 0.0],
[1.0, 0.0, 0.0],
[1.0, 1.0, 0.0],
[0.0, 1.0, 0.0],
[0.0, 0.0, 1.0],
[1.0, 0.0, 1.0],
[1.0, 1.0, 1.0],
[0.0, 1.0, 1.0]])
self.colorVBO = vbo.VBO(np.reshape(self.cubeClrArray,
(1, -1)).astype(np.float32))
self.colorVBO.bind()
self.cubeIdxArray = np.array(
[0, 1, 2, 3,
3, 2, 6, 7,
1, 0, 4, 5,
2, 1, 5, 6,
0, 3, 7, 4,
7, 6, 5, 4])
def getMesh(self):
theMesh = mesh.Mesh.from_file('C:\\Users\metet\Desktop\Yeni klasör\\menger.stl')
p, q, r = theMesh.vectors.shape
vertices, ixr = np.unique(theMesh.vectors.reshape(p * q, r), return_inverse=True, axis=0)
I = np.take(ixr, [3 * k for k in range(p)])
J = np.take(ixr, [3 * k + 1 for k in range(p)])
K = np.take(ixr, [3 * k + 2 for k in range(p)])
x, y, z = self.vertices.T
print(I)
def setRotX(self, val):
self.rotX = np.pi * val
print(val)
def setRotY(self, val):
self.rotY = np.pi * val
def setRotZ(self, val):
self.rotZ = np.pi * val
app = QtWidgets.QApplication(sys.argv)
w = Window()
app.exec_()
sys.exit()
'''
还有旋转网格（不是立方体）的例子吗？