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#!/usr/bin/env python
from vtkmodules.vtkCommonCore import (
vtkFloatArray,
vtkMath,
vtkPoints,
)
from vtkmodules.vtkCommonDataModel import vtkPolyData
from vtkmodules.vtkFiltersCore import vtkGlyph2D
from vtkmodules.vtkFiltersSources import vtkGlyphSource2D
from vtkmodules.vtkRenderingCore import (
vtkActor2D,
vtkPolyDataMapper2D,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
# Create some random points, scalars, and vectors to glyph
#
pd = vtkPolyData()
pts = vtkPoints()
scalars = vtkFloatArray()
vectors = vtkFloatArray()
vectors.SetNumberOfComponents(3)
pd.SetPoints(pts)
pd.GetPointData().SetScalars(scalars)
pd.GetPointData().SetVectors(vectors)
math = vtkMath()
size = 500
i = 0
while i < 100:
pts.InsertNextPoint(math.Random(0, size - 1), math.Random(0, size - 1), 0.0)
scalars.InsertNextValue(math.Random(0.0, 5))
vectors.InsertNextTuple3(math.Random(-1, 1), math.Random(-1, 1), 0.0)
i += 1
gs = vtkGlyphSource2D()
gs.SetGlyphTypeToCircle()
gs.SetScale(20)
gs.FilledOff()
gs.CrossOn()
gs.Update()
gs1 = vtkGlyphSource2D()
gs1.SetGlyphTypeToTriangle()
gs1.SetScale(20)
gs1.FilledOff()
gs1.CrossOn()
gs1.Update()
gs2 = vtkGlyphSource2D()
gs2.SetGlyphTypeToSquare()
gs2.SetScale(20)
gs2.FilledOff()
gs2.CrossOn()
gs2.Update()
gs3 = vtkGlyphSource2D()
gs3.SetGlyphTypeToDiamond()
gs3.SetScale(20)
gs3.FilledOff()
gs3.CrossOn()
gs3.Update()
gs4 = vtkGlyphSource2D()
gs4.SetGlyphTypeToDiamond()
gs4.SetScale(20)
gs4.FilledOn()
gs4.DashOn()
gs4.CrossOff()
gs4.Update()
gs5 = vtkGlyphSource2D()
gs5.SetGlyphTypeToThickArrow()
gs5.SetScale(20)
gs5.FilledOn()
gs5.CrossOff()
gs5.Update()
# Create a table of glyphs
glypher = vtkGlyph2D()
glypher.SetInputData(pd)
glypher.SetSourceData(0, gs.GetOutput())
glypher.SetSourceData(1, gs1.GetOutput())
glypher.SetSourceData(2, gs2.GetOutput())
glypher.SetSourceData(3, gs3.GetOutput())
glypher.SetSourceData(4, gs4.GetOutput())
glypher.SetSourceData(5, gs5.GetOutput())
glypher.SetIndexModeToScalar()
glypher.SetRange(0, 5)
glypher.SetScaleModeToDataScalingOff()
mapper = vtkPolyDataMapper2D()
mapper.SetInputConnection(glypher.GetOutputPort())
mapper.SetScalarRange(0, 5)
glyphActor = vtkActor2D()
glyphActor.SetMapper(mapper)
# Create the RenderWindow, Renderer and both Actors
#
ren1 = vtkRenderer()
renWin = vtkRenderWindow()
renWin.SetMultiSamples(0)
renWin.AddRenderer(ren1)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# Add the actors to the renderer, set the background and size
#
ren1.AddActor(glyphActor)
ren1.SetBackground(1, 1, 1)
renWin.SetSize(size, size)
renWin.Render()
# render the image
#
iren.Initialize()
#iren.Start()
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