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#!/usr/bin/env python
from vtk import *
import os.path
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
def setup_view(link, file, domain1, domain2, hue_range):
reader = vtkDelimitedTextReader()
reader.SetHaveHeaders(True)
reader.SetFileName(file)
ttg = vtkTableToGraph()
ttg.SetInputConnection(0, reader.GetOutputPort())
ttg.AddLinkVertex(domain1, domain1, False)
ttg.AddLinkVertex(domain2, domain2, False)
ttg.AddLinkEdge(domain1, domain2)
cat = vtkStringToCategory()
cat.SetInputConnection(ttg.GetOutputPort())
cat.SetInputArrayToProcess(0,0,0,4,"domain")
view = vtkGraphLayoutView()
view.SetVertexLabelArrayName("label")
view.VertexLabelVisibilityOn()
view.SetVertexColorArrayName("category")
view.ColorVerticesOn()
rep = view.AddRepresentationFromInputConnection(cat.GetOutputPort())
rep.SetSelectionType(2)
rep.SetAnnotationLink(link)
view.GetRenderWindow().SetSize(500,500)
theme = vtkViewTheme.CreateMellowTheme()
theme.SetLineWidth(5)
theme.SetCellOpacity(0.9)
theme.SetCellAlphaRange(0.5,0.5)
theme.SetPointOpacity(0.5)
theme.SetPointSize(10)
theme.SetPointHueRange(hue_range[0], hue_range[1])
theme.SetSelectedCellColor(1,0,1)
theme.SetSelectedPointColor(1,0,1)
view.ApplyViewTheme(theme)
theme.FastDelete()
view.ResetCamera()
view.Render()
return view
if __name__ == "__main__":
data_dir = VTK_DATA_ROOT + "/Data/Infovis/"
if not os.path.exists(data_dir):
data_dir = VTK_DATA_ROOT + "/Data/Infovis/"
dt_reader = vtkDelimitedTextReader()
dt_reader.SetHaveHeaders(True)
dt_reader.SetFileName(data_dir + "document-term.csv")
dt_reader.Update()
link = vtkAnnotationLink()
link.AddDomainMap(dt_reader.GetOutput())
tc_view = setup_view(
link, data_dir + "term-concept.csv",
"term", "concept", [0.2, 0.0])
pd_view = setup_view(
link, data_dir + "person-document.csv",
"person", "document", [0.75, 0.25])
updater = vtkViewUpdater()
updater.AddAnnotationLink(link)
updater.AddView(tc_view)
updater.AddView(pd_view)
tc_view.GetInteractor().Start()
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