/
geometricobjects.py
123 lines (93 loc) · 4.45 KB
/
geometricobjects.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
import sys
import os.path
from PyQt4 import QtCore, QtGui
QtCore.Signal = QtCore.pyqtSignal
import vtk
from vtk.qt4.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor
class VTKFrame(QtGui.QFrame):
def __init__(self, parent = None):
super(VTKFrame, self).__init__(parent)
self.vtkWidget = QVTKRenderWindowInteractor(self)
self.iren = self.vtkWidget.GetRenderWindow().GetInteractor()
vl = QtGui.QVBoxLayout(self)
vl.addWidget(self.vtkWidget)
vl.setContentsMargins(0, 0, 0, 0)
# Create source
geometricObjects = list()
geometricObjects.append(vtk.vtkArrowSource())
geometricObjects.append(vtk.vtkConeSource())
geometricObjects.append(vtk.vtkCubeSource())
geometricObjects.append(vtk.vtkCylinderSource())
geometricObjects.append(vtk.vtkDiskSource())
geometricObjects.append(vtk.vtkLineSource())
geometricObjects.append(vtk.vtkRegularPolygonSource())
geometricObjects.append(vtk.vtkSphereSource())
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create a common text property.
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(10)
textProperty.SetJustificationToCentered()
# Create a parametric function source, renderer, mapper
# and actor for each object.
for idx, item in enumerate(geometricObjects):
geometricObjects[idx].Update()
mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(geometricObjects[idx].GetOutputPort())
actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])
textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(item.GetClassName())
textmappers[idx].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(150, 16)
renderers.append(vtk.vtkRenderer())
gridDimensions = 3
for idx in range(len(geometricObjects)):
if idx < gridDimensions * gridDimensions:
renderers.append(vtk.vtkRenderer())
rendererSize = 300
# Setup the RenderWindow
self.vtkWidget.GetRenderWindow().SetSize(rendererSize * gridDimensions, rendererSize * gridDimensions)
# Add and position the renders to the render window.
viewport = list()
for row in range(gridDimensions):
for col in range(gridDimensions):
idx = row * gridDimensions + col
viewport[:] = []
viewport.append(float(col) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - (row+1)) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(col+1)*rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - row) * rendererSize / (gridDimensions * rendererSize))
if idx > (len(geometricObjects) - 1):
continue
renderers[idx].SetViewport(viewport)
self.vtkWidget.GetRenderWindow().AddRenderer(renderers[idx])
renderers[idx].AddActor(actors[idx])
renderers[idx].AddActor(textactors[idx])
renderers[idx].SetBackground(0.4,0.3,0.2)
self._initialized = False
def showEvent(self, evt):
if not self._initialized:
self.iren.Initialize()
self._initialized = True
class MainPage(QtGui.QMainWindow):
def __init__(self, parent = None):
super(MainPage, self).__init__(parent)
self.setCentralWidget(VTKFrame())
self.setWindowTitle("Geometric objects example")
def categories(self):
return ['Geometric Objects']
def mainClasses(self):
return ['vtkArrowSource', 'vtkConeSource', 'vtkCubeSource', 'vtkCylinderSource', 'vtkDiskSource', 'vtkLineSource', 'vtkRegularPolygonSource', 'vtkSphereSource', 'vtkTextProperty']
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
w = MainPage()
w.show()
sys.exit(app.exec_())