ParaView-5.0.1: Added the source-tree to ThirdParty-dev and patched as described in the README file

Resolves bug-report http://bugs.openfoam.org/view.php?id=2098

ParaView-5.0.1/VTK/Examples/Annotation/Python/labeledMesh.py

@@ -0,0 +1,149 @@
+#!/usr/bin/env python
+
+# This example demonstrates the use of vtkLabeledDataMapper.  This
+# class is used for displaying numerical data from an underlying data
+# set.  In the case of this example, the underlying data are the point
+# and cell ids.
+
+import vtk
+
+# Create a selection window.  We will display the point and cell ids
+# that lie within this window.
+xmin = 200
+xLength = 100
+xmax = xmin + xLength
+ymin = 200
+yLength = 100
+ymax = ymin + yLength
+
+pts = vtk.vtkPoints()
+pts.InsertPoint(0, xmin, ymin, 0)
+pts.InsertPoint(1, xmax, ymin, 0)
+pts.InsertPoint(2, xmax, ymax, 0)
+pts.InsertPoint(3, xmin, ymax, 0)
+rect = vtk.vtkCellArray()
+rect.InsertNextCell(5)
+rect.InsertCellPoint(0)
+rect.InsertCellPoint(1)
+rect.InsertCellPoint(2)
+rect.InsertCellPoint(3)
+rect.InsertCellPoint(0)
+selectRect = vtk.vtkPolyData()
+selectRect.SetPoints(pts)
+selectRect.SetLines(rect)
+rectMapper = vtk.vtkPolyDataMapper2D()
+rectMapper.SetInputData(selectRect)
+rectActor = vtk.vtkActor2D()
+rectActor.SetMapper(rectMapper)
+
+# Create a sphere and its associated mapper and actor.
+sphere = vtk.vtkSphereSource()
+sphereMapper = vtk.vtkPolyDataMapper()
+sphereMapper.SetInputConnection(sphere.GetOutputPort())
+sphereMapper.GlobalImmediateModeRenderingOn()
+sphereActor = vtk.vtkActor()
+sphereActor.SetMapper(sphereMapper)
+
+# Generate data arrays containing point and cell ids
+ids = vtk.vtkIdFilter()
+ids.SetInputConnection(sphere.GetOutputPort())
+ids.PointIdsOn()
+ids.CellIdsOn()
+ids.FieldDataOn()
+
+# Create the renderer here because vtkSelectVisiblePoints needs it.
+ren = vtk.vtkRenderer()
+
+# Create labels for points
+visPts = vtk.vtkSelectVisiblePoints()
+visPts.SetInputConnection(ids.GetOutputPort())
+visPts.SetRenderer(ren)
+visPts.SelectionWindowOn()
+visPts.SetSelection(xmin, xmin + xLength, ymin, ymin + yLength)
+
+# Create the mapper to display the point ids.  Specify the format to
+# use for the labels.  Also create the associated actor.
+ldm = vtk.vtkLabeledDataMapper()
+# ldm.SetLabelFormat("%g")
+ldm.SetInputConnection(visPts.GetOutputPort())
+ldm.SetLabelModeToLabelFieldData()
+pointLabels = vtk.vtkActor2D()
+pointLabels.SetMapper(ldm)
+
+# Create labels for cells
+cc = vtk.vtkCellCenters()
+cc.SetInputConnection(ids.GetOutputPort())
+visCells = vtk.vtkSelectVisiblePoints()
+visCells.SetInputConnection(cc.GetOutputPort())
+visCells.SetRenderer(ren)
+visCells.SelectionWindowOn()
+visCells.SetSelection(xmin, xmin + xLength, ymin, ymin + yLength)
+
+# Create the mapper to display the cell ids.  Specify the format to
+# use for the labels.  Also create the associated actor.
+cellMapper = vtk.vtkLabeledDataMapper()
+cellMapper.SetInputConnection(visCells.GetOutputPort())
+# cellMapper.SetLabelFormat("%g")
+cellMapper.SetLabelModeToLabelFieldData()
+cellMapper.GetLabelTextProperty().SetColor(0, 1, 0)
+cellLabels = vtk.vtkActor2D()
+cellLabels.SetMapper(cellMapper)
+
+# Create the RenderWindow and RenderWindowInteractor
+renWin = vtk.vtkRenderWindow()
+renWin.AddRenderer(ren)
+iren = vtk.vtkRenderWindowInteractor()
+iren.SetRenderWindow(renWin)
+
+# Add the actors to the renderer; set the background and size;
+# render
+ren.AddActor(sphereActor)
+ren.AddActor2D(rectActor)
+ren.AddActor2D(pointLabels)
+ren.AddActor2D(cellLabels)
+
+ren.SetBackground(1, 1, 1)
+renWin.SetSize(500, 500)
+
+# Create a function to move the selection window across the data set.
+def MoveWindow():
+    for y in range(100, 300, 25):
+        for x in range(100, 300, 25):
+            PlaceWindow(x, y)
+
+
+# Create a function to draw the selection window at each location it
+# is moved to.
+def PlaceWindow(xmin, ymin):
+    global xLength, yLength, visPts, visCells, pts, renWin
+
+    xmax = xmin + xLength
+    ymax = ymin + yLength
+
+    visPts.SetSelection(xmin, xmax, ymin, ymax)
+    visCells.SetSelection(xmin, xmax, ymin, ymax)
+
+    pts.InsertPoint(0, xmin, ymin, 0)
+    pts.InsertPoint(1, xmax, ymin, 0)
+    pts.InsertPoint(2, xmax, ymax, 0)
+    pts.InsertPoint(3, xmin, ymax, 0)
+    # Call Modified because InsertPoints does not modify vtkPoints
+    # (for performance reasons)
+    pts.Modified()
+    renWin.Render()
+
+
+# Initialize the interactor.
+iren.Initialize()
+renWin.Render()
+
+# Move the selection window across the data set.
+MoveWindow()
+
+# Put the selection window in the center of the render window.
+# This works because the xmin = ymin = 200, xLength = yLength = 100, and
+# the render window size is 500 x 500.
+PlaceWindow(xmin, ymin)
+
+# Now start normal interaction.
+iren.Start()