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#!/usr/bin/env python
from vtkmodules.vtkCommonCore import vtkPoints
from vtkmodules.vtkCommonDataModel import vtkPolyData
from vtkmodules.vtkFiltersCore import vtkGlyph2D
from vtkmodules.vtkFiltersSources import vtkGlyphSource2D
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
GLYPH_TYPES = [
'VTK_NO_GLYPH',
'VTK_VERTEX_GLYPH',
'VTK_DASH_GLYPH',
'VTK_CROSS_GLYPH',
'VTK_THICKCROSS_GLYPH',
'VTK_TRIANGLE_GLYPH',
'VTK_SQUARE_GLYPH',
'VTK_CIRCLE_GLYPH',
'VTK_DIAMOND_GLYPH',
'VTK_ARROW_GLYPH',
'VTK_THICKARROW_GLYPH',
'VTK_HOOKEDARROW_GLYPH',
'VTK_EDGEARROW_GLYPH'
]
numRows = len(GLYPH_TYPES)
actors = []
fixedScales = [ 0.5, 1.0, 1.5, 2.0 ]
for i in range(numRows):
for j in range(1, 5):
points = vtkPoints()
points.InsertNextPoint(j*3, i*3, 0)
polydata = vtkPolyData()
polydata.SetPoints(points)
glyphSource = vtkGlyphSource2D()
glyphSource.SetGlyphType(i)
glyphSource.FilledOff()
glyphSource.SetResolution(25)
glyphSource.SetScale(fixedScales[j-1])
if GLYPH_TYPES[i] == 'VTK_TRIANGLE_GLYPH':
glyphSource.SetRotationAngle(90)
glyph2D = vtkGlyph2D()
glyph2D.SetSourceConnection(glyphSource.GetOutputPort())
glyph2D.SetInputData(polydata)
glyph2D.Update()
mapper = vtkPolyDataMapper()
mapper.SetInputConnection(glyph2D.GetOutputPort())
mapper.Update()
actor = vtkActor()
actor.SetMapper(mapper)
actors.append(actor)
# Set up the renderer, render window, and interactor.
renderer = vtkRenderer()
for actor in actors:
renderer.AddActor(actor)
renWin = vtkRenderWindow()
renWin.SetSize(400,600)
renWin.AddRenderer(renderer)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
iren.Initialize()
renWin.Render()
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