Difference between revisions of "VTK/Examples/Python/GeometricObjects/Display/PlatonicSolid"

< VTK‎ | Examples‎ | Python

Display all five Platonic solids in a grid.

PlatonicSolid.py

```#!/usr/bin/env python

import vtk

class PlatonicSolids():

def PlatonicSolids(self):

# Each face has a different cell scalar
# So create a lookup table with a different colour
# for each face.
lut = vtk.vtkLookupTable()
lut.SetNumberOfTableValues(20)
lut.SetTableRange(0.0, 19.0)
lut.Build()
lut.SetTableValue(0, 0, 0, 0)
lut.SetTableValue(1, 0, 0, 1)
lut.SetTableValue(2, 0, 1, 0)
lut.SetTableValue(3, 0, 1, 1)
lut.SetTableValue(4, 1, 0, 0)
lut.SetTableValue(5, 1, 0, 1)
lut.SetTableValue(6, 1, 1, 0)
lut.SetTableValue(7, 1, 1, 1)
lut.SetTableValue(8, 0.7, 0.7, 0.7)
lut.SetTableValue(9, 0, 0, 0.7)
lut.SetTableValue(10, 0, 0.7, 0)
lut.SetTableValue(11, 0, 0.7, 0.7)
lut.SetTableValue(12, 0.7, 0, 0)
lut.SetTableValue(13, 0.7, 0, 0.7)
lut.SetTableValue(14, 0.7, 0.7, 0)
lut.SetTableValue(15, 0, 0, 0.4)
lut.SetTableValue(16, 0, 0.4, 0)
lut.SetTableValue(17, 0, 0.4, 0.4)
lut.SetTableValue(18, 0.4, 0, 0)
lut.SetTableValue(19, 0.4, 0, 0.4)

PlatonicSolids = list()
# There are five Platonic solids.
PlatonicSolids.append(vtk.vtkPlatonicSolidSource())
PlatonicSolids.append(vtk.vtkPlatonicSolidSource())
PlatonicSolids.append(vtk.vtkPlatonicSolidSource())
PlatonicSolids.append(vtk.vtkPlatonicSolidSource())
PlatonicSolids.append(vtk.vtkPlatonicSolidSource())
# Specify the Platonic Solid to create.
for idx, item in enumerate(PlatonicSolids):
PlatonicSolids[idx].SetSolidType(idx)
names = ["Tetrahedron","Cube","Octahedron","Icosahedron", "Dodecahedron"]

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(PlatonicSolids):
PlatonicSolids[idx].Update()

mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(PlatonicSolids[idx].GetOutputPort())
mappers[idx].SetLookupTable(lut)
mappers[idx].SetScalarRange(0, 20)

actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])

textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(names[idx])
textmappers[idx].SetTextProperty(textProperty)

textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(120, 16)

renderers.append(vtk.vtkRenderer())

rowDimensions = 3
colDimensions = 2

for idx in range(rowDimensions * colDimensions):
if idx >= len(PlatonicSolids):
renderers.append(vtk.vtkRenderer)

rendererSize = 300

# Create the RenderWindow
#
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetSize(rendererSize * rowDimensions / colDimensions, rendererSize * colDimensions )

# Add and position the renders to the render window.
viewport = list()
idx = -1
for row in range(rowDimensions):
for col in range(colDimensions):
idx += 1
viewport[:] = []
viewport.append(float(col) * rendererSize / (colDimensions * rendererSize))
viewport.append(float(rowDimensions - (row+1)) * rendererSize / (rowDimensions * rendererSize))
viewport.append(float(col+1)*rendererSize / (colDimensions * rendererSize))
viewport.append(float(rowDimensions - row) * rendererSize / (rowDimensions * rendererSize))

if idx > (len(PlatonicSolids) - 1):
continue

renderers[idx].SetViewport(viewport)