目录
安装：
pip install vtk
pip install mayavi
pip install PyQt5
pip install pyqt5 mayavi traits traitsui
示例代码：
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton
from traits.api import HasTraits, Instance
from traitsui.api import View, Item
from tvtk.pyface.scene_editor import SceneEditor
from mayavi.tools.mlab_scene_model import MlabSceneModel
from mayavi.core.ui.mayavi_scene import MayaviScene
class Visualization(HasTraits):
scene = Instance(MlabSceneModel, ())
def __init__(self):
HasTraits.__init__(self)
# the layout of the dialog created
view = View(Item('scene', editor=SceneEditor(scene_class=MayaviScene),
height=250, width=300, show_label=False), )
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setWindowTitle('Mayavi embedded in PyQt5')
# Create the main widget and layout
main_widget = QWidget()
self.setCentralWidget(main_widget)
layout = QVBoxLayout(main_widget)
# Create the Mayavi visualization
self.visualization = Visualization()
self.mayavi_scene = self.visualization.edit_traits(parent=main_widget, kind='subpanel').control
layout.addWidget(self.mayavi_scene)
# Create a button and connect its event
self.button = QPushButton('Generate 3D Mesh')
layout.addWidget(self.button)
self.button.clicked.connect(self.button_event)
def button_event(self):
# Create the data.
from numpy import pi, sin, cos, mgrid
dphi, dtheta = pi / 250.0, pi / 250.0
[phi, theta] = mgrid[0:pi + dphi * 1.5:dphi, 0:2 * pi + dtheta * 1.5:dtheta]
m0 = 4; m1 = 3; m2 = 2; m3 = 3; m4 = 6; m5 = 2; m6 = 6; m7 = 4;
r = sin(m0 * phi) ** m1 + cos(m2 * phi) ** m3 + sin(m4 * theta) ** m5 + cos(m6 * theta) ** m7
x = r * sin(phi) * cos(theta)
y = r * cos(phi)
z = r * sin(phi) * sin(theta)
# View it.
self.visualization.scene.mlab.mesh(x, y, z)
if __name__ == '__main__':
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
sys.exit(app.exec_())
生成3d检测框：
import sys
import numpy as np
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton
from traits.api import HasTraits, Instance
from traitsui.api import View, Item
from tvtk.pyface.scene_editor import SceneEditor
from mayavi.tools.mlab_scene_model import MlabSceneModel
from mayavi.core.ui.mayavi_scene import MayaviScene
from mayavi import mlab
class Visualization(HasTraits):
scene = Instance(MlabSceneModel, ())
def __init__(self):
HasTraits.__init__(self)
# the layout of the dialog created
view = View(Item('scene', editor=SceneEditor(scene_class=MayaviScene),
height=600, width=800, show_label=False), )
def draw_3d_box(self, center, size, orientation):
c, s = np.cos(orientation), np.sin(orientation)
R = np.array([
[c, -s, 0],
[s, c, 0],
[0, 0, 1]
])
l, w, h = size / 2.0
corners = np.array([
[ l, w, h],
[ l, -w, h],
[-l, -w, h],
[-l, w, h],
[ l, w, -h],
[ l, -w, -h],
[-l, -w, -h],
[-l, w, -h]
])
corners = np.dot(corners, R.T) + center
edges = [
[0, 1], [1, 2], [2, 3], [3, 0],
[4, 5], [5, 6], [6, 7], [7, 4],
[0, 4], [1, 5], [2, 6], [3, 7]
]
for edge in edges:
self.scene.mlab.plot3d(
[corners[edge[0], 0], corners[edge[1], 0]],
[corners[edge[0], 1], corners[edge[1], 1]],
[corners[edge[0], 2], corners[edge[1], 2]],
color=(1, 0, 0), tube_radius=None, line_width=1, figure=self.scene.mayavi_scene
)
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setWindowTitle('Mayavi embedded in PyQt5')
# Create the main widget and layout
main_widget = QWidget()
self.setCentralWidget(main_widget)
layout = QVBoxLayout(main_widget)
# Create the Mayavi visualization
self.visualization = Visualization()
self.mayavi_scene = self.visualization.edit_traits(parent=main_widget, kind='subpanel').control
layout.addWidget(self.mayavi_scene)
# Create a button and connect its event
self.button = QPushButton('Generate 3D Detection Box')
layout.addWidget(self.button)
self.button.clicked.connect(self.button_event)
def button_event(self):
# Example data for a 3D box
center = np.array([0, 0, 0])
size = np.array([2, 1, 1])
orientation = np.pi / 4 # 45 degrees
# Draw the 3D box
self.visualization.draw_3d_box(center, size, orientation)
if __name__ == '__main__':
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
sys.exit(app.exec_())
显示立方体 两个窗口
import sys
import numpy as np
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton
from PyQt5.QtCore import QTimer
from traits.api import HasTraits, Instance
from traitsui.api import View, Item
from mayavi.tools.mlab_scene_model import MlabSceneModel
from mayavi.core.ui.api import MlabSceneModel, SceneEditor
from mayavi import mlab
class Visualization(HasTraits):
scene = Instance(MlabSceneModel, ())
def __init__(self):
HasTraits.__init__(self)
self.figure = mlab.figure(bgcolor=(1, 1, 1), size=(800, 600))
# Layout of the dialog created
view = View(Item('scene', editor=SceneEditor(scene_class=MlabSceneModel),
height=600, width=800, show_label=False), resizable=True)
def draw_3d_box(self, center, size, orientation):
# Define the rotation matrix
c, s = np.cos(orientation), np.sin(orientation)
R = np.array([
[c, -s, 0],
[s, c, 0],
[0, 0, 1]
])
# Half dimensions
l, w, h = size / 2.0
corners = np.array([
[ l, w, h],
[ l, -w, h],
[-l, -w, h],
[-l, w, h],
[ l, w, -h],
[ l, -w, -h],
[-l, -w, -h],
[-l, w, -h]
])
# Rotate and translate corners
corners = np.dot(corners, R.T) + center
# Define edges of the box
edges = [
(0, 1), (1, 2), (2, 3), (3, 0),
(4, 5), (5, 6), (6, 7), (7, 4),
(0, 4), (1, 5), (2, 6), (3, 7)
]
# Plot edges
for edge in edges:
mlab.plot3d([corners[edge[0]][0], corners[edge[1]][0]],
[corners[edge[0]][1], corners[edge[1]][1]],
[corners[edge[0]][2], corners[edge[1]][2]],
color=(1, 0, 0), tube_radius=0.01, figure=self.figure)
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setWindowTitle('Moving 3D Box with Mayavi and PyQt5')
# Main widget and layout
main_widget = QWidget()
self.setCentralWidget(main_widget)
layout = QVBoxLayout(main_widget)
# Create the Mayavi visualization
self.visualization = Visualization()
self.ui = self.visualization.edit_traits(parent=main_widget, kind='subpanel').control
layout.addWidget(self.ui)
# Timer for moving the box
self.timer = QTimer(self)
self.timer.timeout.connect(self.update_position)
self.timer.start(100) # Update every 100 ms
# Box parameters
self.box_center = np.array([0, 0, 0])
self.box_size = np.array([1, 1, 1])
self.orientation = 0 # No rotation initially
def update_position(self):
self.visualization.figure.scene.disable_render = True # For performance
self.box_center[0] += 0.1 # Move along X
mlab.clf() # Clear the figure
self.visualization.draw_3d_box(self.box_center, self.box_size, self.orientation)
self.visualization.figure.scene.disable_render = False # Re-enable rendering
if __name__ == '__main__':
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
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