def __init__(self, module_manager): SimpleVTKClassModuleBase.__init__( self, module_manager, vtk.vtkProgrammableDataObjectSource(), 'Processing.', (), ('vtkDataObject',), replaceDoc=True, inputFunctions=None, outputFunctions=None)
def __init__(self, module_manager): SimpleVTKClassModuleBase.__init__( self, module_manager, vtk.vtkProgrammableDataObjectSource(), 'Processing.', (), ('vtkDataObject', ), replaceDoc=True, inputFunctions=None, outputFunctions=None)
def testFinancialField(self): """ Demonstrate the use and manipulation of fields and use of vtkProgrammableDataObjectSource. This creates fields the hard way (as compared to reading a vtk field file), but shows you how to interface to your own raw data. The image should be the same as financialField.tcl """ xAxis = "INTEREST_RATE" yAxis = "MONTHLY_PAYMENT" zAxis = "MONTHLY_INCOME" scalar = "TIME_LATE" # Parse an ascii file and manually create a field. Then construct a # dataset from the field. dos = vtk.vtkProgrammableDataObjectSource() def parseFile(): f = open(VTK_DATA_ROOT + "/Data/financial.txt", "r") line = f.readline().split() # From the size calculate the number of lines. numPts = int(line[1]) numLines = (numPts - 1) / 8 + 1 # create the data object field = vtk.vtkFieldData() field.AllocateArrays(4) # read TIME_LATE - dependent variable while True: line = f.readline().split() if len(line) > 0: break; timeLate = vtk.vtkFloatArray() timeLate.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: timeLate.InsertNextValue(float(j)) field.AddArray(timeLate) # MONTHLY_PAYMENT - independent variable while True: line = f.readline().split() if len(line) > 0: break; monthlyPayment = vtk.vtkFloatArray() monthlyPayment.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: monthlyPayment.InsertNextValue(float(j)) field.AddArray(monthlyPayment) # UNPAID_PRINCIPLE - skip while True: line = f.readline().split() if len(line) > 0: break; for i in range(0, numLines): line = f.readline() # LOAN_AMOUNT - skip while True: line = f.readline().split() if len(line) > 0: break; for i in range(0, numLines): line = f.readline() # INTEREST_RATE - independent variable while True: line = f.readline().split() if len(line) > 0: break; interestRate = vtk.vtkFloatArray() interestRate.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: interestRate.InsertNextValue(float(j)) field.AddArray(interestRate) # MONTHLY_INCOME - independent variable while True: line = f.readline().split() if len(line) > 0: break; monthlyIncome = vtk.vtkFloatArray() monthlyIncome.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: monthlyIncome.InsertNextValue(float(j)) field.AddArray(monthlyIncome) dos.GetOutput().SetFieldData(field) dos.SetExecuteMethod(parseFile) # Create the dataset do2ds = vtk.vtkDataObjectToDataSetFilter() do2ds.SetInputConnection(dos.GetOutputPort()) do2ds.SetDataSetTypeToPolyData() #format: component#, arrayname, arraycomp, minArrayId, maxArrayId, normalize do2ds.DefaultNormalizeOn() do2ds.SetPointComponent(0, xAxis, 0) do2ds.SetPointComponent(1, yAxis, 0) do2ds.SetPointComponent(2, zAxis, 0) do2ds.Update() rf = vtk.vtkRearrangeFields() rf.SetInputConnection(do2ds.GetOutputPort()) rf.AddOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.RemoveOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.AddOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.RemoveAllOperations() rf.AddOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.Update() max = rf.GetOutput().GetPointData().GetArray(scalar).GetRange(0)[1] calc = vtk.vtkArrayCalculator() calc.SetInputConnection(rf.GetOutputPort()) calc.SetAttributeModeToUsePointData() calc.SetFunction("s / %f" % max) calc.AddScalarVariable("s", scalar, 0) calc.SetResultArrayName("resArray") aa = vtk.vtkAssignAttribute() aa.SetInputConnection(calc.GetOutputPort()) aa.Assign("resArray", "SCALARS", "POINT_DATA") aa.Update() rf2 = vtk.vtkRearrangeFields() rf2.SetInputConnection(aa.GetOutputPort()) rf2.AddOperation("COPY", "SCALARS", "POINT_DATA", "DATA_OBJECT") # construct pipeline for original population popSplatter = vtk.vtkGaussianSplatter() popSplatter.SetInputConnection(rf2.GetOutputPort()) popSplatter.SetSampleDimensions(50, 50, 50) popSplatter.SetRadius(0.05) popSplatter.ScalarWarpingOff() popSurface = vtk.vtkContourFilter() popSurface.SetInputConnection(popSplatter.GetOutputPort()) popSurface.SetValue(0, 0.01) popMapper = vtk.vtkPolyDataMapper() popMapper.SetInputConnection(popSurface.GetOutputPort()) popMapper.ScalarVisibilityOff() popMapper.ImmediateModeRenderingOn() popActor = vtk.vtkActor() popActor.SetMapper(popMapper) popActor.GetProperty().SetOpacity(0.3) popActor.GetProperty().SetColor(.9, .9, .9) # construct pipeline for delinquent population lateSplatter = vtk.vtkGaussianSplatter() lateSplatter.SetInputConnection(aa.GetOutputPort()) lateSplatter.SetSampleDimensions(50, 50, 50) lateSplatter.SetRadius(0.05) lateSplatter.SetScaleFactor(0.05) lateSurface = vtk.vtkContourFilter() lateSurface.SetInputConnection(lateSplatter.GetOutputPort()) lateSurface.SetValue(0, 0.01) lateMapper = vtk.vtkPolyDataMapper() lateMapper.SetInputConnection(lateSurface.GetOutputPort()) lateMapper.ScalarVisibilityOff() lateActor = vtk.vtkActor() lateActor.SetMapper(lateMapper) lateActor.GetProperty().SetColor(1.0, 0.0, 0.0) # create axes popSplatter.Update() bounds = popSplatter.GetOutput().GetBounds() axes = vtk.vtkAxes() axes.SetOrigin(bounds[0], bounds[2], bounds[4]) axes.SetScaleFactor(popSplatter.GetOutput().GetLength() / 5.0) axesTubes = vtk.vtkTubeFilter() axesTubes.SetInputConnection(axes.GetOutputPort()) axesTubes.SetRadius(axes.GetScaleFactor() / 25.0) axesTubes.SetNumberOfSides(6) axesMapper = vtk.vtkPolyDataMapper() axesMapper.SetInputConnection(axesTubes.GetOutputPort()) axesActor = vtk.vtkActor() axesActor.SetMapper(axesMapper) # label the axes XText = vtk.vtkVectorText() XText.SetText(xAxis) XTextMapper = vtk.vtkPolyDataMapper() XTextMapper.SetInputConnection(XText.GetOutputPort()) XActor = vtk.vtkFollower() XActor.SetMapper(XTextMapper) XActor.SetScale(0.02, .02, .02) XActor.SetPosition(0.35, -0.05, -0.05) XActor.GetProperty().SetColor(0, 0, 0) YText = vtk.vtkVectorText() YText.SetText(yAxis) YTextMapper = vtk.vtkPolyDataMapper() YTextMapper.SetInputConnection(YText.GetOutputPort()) YActor = vtk.vtkFollower() YActor.SetMapper(YTextMapper) YActor.SetScale(0.02, .02, .02) YActor.SetPosition(-0.05, 0.35, -0.05) YActor.GetProperty().SetColor(0, 0, 0) ZText = vtk.vtkVectorText() ZText.SetText(zAxis) ZTextMapper = vtk.vtkPolyDataMapper() ZTextMapper.SetInputConnection(ZText.GetOutputPort()) ZActor = vtk.vtkFollower() ZActor.SetMapper(ZTextMapper) ZActor.SetScale(0.02, .02, .02) ZActor.SetPosition(-0.05, -0.05, 0.35) ZActor.GetProperty().SetColor(0, 0, 0) # Graphics stuff # ren = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(ren) renWin.SetWindowName("vtk(-, Field.Data") renWin.SetSize(300, 300) # Add the actors to the renderer, set the background and size # ren.AddActor(axesActor) ren.AddActor(lateActor) ren.AddActor(XActor) ren.AddActor(YActor) ren.AddActor(ZActor) ren.AddActor(popActor) #it's last because its translucent) ren.SetBackground(1, 1, 1) camera = vtk.vtkCamera() camera.SetClippingRange(.274, 13.72) camera.SetFocalPoint(0.433816, 0.333131, 0.449) camera.SetPosition(-1.96987, 1.15145, 1.49053) camera.SetViewUp(0.378927, 0.911821, 0.158107) ren.SetActiveCamera(camera) XActor.SetCamera(camera) YActor.SetCamera(camera) ZActor.SetCamera(camera) # render and interact with data iRen = vtk.vtkRenderWindowInteractor() iRen.SetRenderWindow(renWin); renWin.Render() img_file = "financialField3.png" vtk.test.Testing.compareImage(iRen.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=25) vtk.test.Testing.interact()
xAxis = "INTEREST_RATE" yAxis = "MONTHLY_PAYMENT" zAxis = "MONTHLY_INCOME" scalar = "TIME_LATE" def getNumberFromLine(line): patn = re.compile('[-+]{0,1}[\d.]+e?[-+\d]*', re.M) val = patn.findall(line) ret = [] for i in val: ret.append(float(i)) return ret # Parse an ASCII file and manually create a field. Then construct a # dataset from the field. dos = vtk.vtkProgrammableDataObjectSource() # First define the function that will parse the data. def parseFile(): global VTK_DATA_ROOT, dos # Use Python to read an ASCII file file = open(os.path.join(VTK_DATA_ROOT, "Data/financial.txt"), "r") line = file.readline() numPts = int(getNumberFromLine(line)[0]) numLines = (numPts - 1)/8 # Get the data object's field data and allocate # room for 4, fields fieldData = dos.GetOutput().GetFieldData()
xAxis = "INTEREST_RATE" yAxis = "MONTHLY_PAYMENT" zAxis = "MONTHLY_INCOME" scalar = "TIME_LATE" def getNumberFromLine(line): patn = re.compile('[-+]{0,1}[\d.]+e?[-+\d]*', re.M) val = patn.findall(line) ret = [] for i in val: ret.append(float(i)) return ret # Parse an ASCII file and manually create a field. Then construct a # dataset from the field. dos = vtk.vtkProgrammableDataObjectSource() # First define the function that will parse the data. def parseFile(): global VTK_DATA_ROOT, dos # Use Python to read an ASCII file file = open(os.path.join(VTK_DATA_ROOT, "Data/financial.txt"), "r") line = file.readline() numPts = int(getNumberFromLine(line)[0]) numLines = (numPts - 1)//8 # Get the data object's field data and allocate # room for 4, fields fieldData = dos.GetOutput().GetFieldData()
def testFinancialField(self): """ Demonstrate the use and manipulation of fields and use of vtkProgrammableDataObjectSource. This creates fields the hard way (as compared to reading a vtk field file), but shows you how to interface to your own raw data. The image should be the same as financialField.tcl """ xAxis = "INTEREST_RATE" yAxis = "MONTHLY_PAYMENT" zAxis = "MONTHLY_INCOME" scalar = "TIME_LATE" # Parse an ascii file and manually create a field. Then construct a # dataset from the field. dos = vtk.vtkProgrammableDataObjectSource() def parseFile(): f = open(VTK_DATA_ROOT + "/Data/financial.txt", "r") line = f.readline().split() # From the size calculate the number of lines. numPts = int(line[1]) numLines = (numPts - 1) / 8 + 1 # create the data object field = vtk.vtkFieldData() field.AllocateArrays(4) # read TIME_LATE - dependent variable while True: line = f.readline().split() if len(line) > 0: break timeLate = vtk.vtkFloatArray() timeLate.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: timeLate.InsertNextValue(float(j)) field.AddArray(timeLate) # MONTHLY_PAYMENT - independent variable while True: line = f.readline().split() if len(line) > 0: break monthlyPayment = vtk.vtkFloatArray() monthlyPayment.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: monthlyPayment.InsertNextValue(float(j)) field.AddArray(monthlyPayment) # UNPAID_PRINCIPLE - skip while True: line = f.readline().split() if len(line) > 0: break for i in range(0, numLines): line = f.readline() # LOAN_AMOUNT - skip while True: line = f.readline().split() if len(line) > 0: break for i in range(0, numLines): line = f.readline() # INTEREST_RATE - independent variable while True: line = f.readline().split() if len(line) > 0: break interestRate = vtk.vtkFloatArray() interestRate.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: interestRate.InsertNextValue(float(j)) field.AddArray(interestRate) # MONTHLY_INCOME - independent variable while True: line = f.readline().split() if len(line) > 0: break monthlyIncome = vtk.vtkFloatArray() monthlyIncome.SetName(line[0]) for i in range(0, numLines): line = f.readline().split() for j in line: monthlyIncome.InsertNextValue(float(j)) field.AddArray(monthlyIncome) dos.GetOutput().SetFieldData(field) dos.SetExecuteMethod(parseFile) # Create the dataset do2ds = vtk.vtkDataObjectToDataSetFilter() do2ds.SetInputConnection(dos.GetOutputPort()) do2ds.SetDataSetTypeToPolyData() #format: component#, arrayname, arraycomp, minArrayId, maxArrayId, normalize do2ds.DefaultNormalizeOn() do2ds.SetPointComponent(0, xAxis, 0) do2ds.SetPointComponent(1, yAxis, 0) do2ds.SetPointComponent(2, zAxis, 0) do2ds.Update() rf = vtk.vtkRearrangeFields() rf.SetInputConnection(do2ds.GetOutputPort()) rf.AddOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.RemoveOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.AddOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.RemoveAllOperations() rf.AddOperation("MOVE", scalar, "DATA_OBJECT", "POINT_DATA") rf.Update() max = rf.GetOutput().GetPointData().GetArray(scalar).GetRange(0)[1] calc = vtk.vtkArrayCalculator() calc.SetInputConnection(rf.GetOutputPort()) calc.SetAttributeTypeToPointData() calc.SetFunction("s / %f" % max) calc.AddScalarVariable("s", scalar, 0) calc.SetResultArrayName("resArray") aa = vtk.vtkAssignAttribute() aa.SetInputConnection(calc.GetOutputPort()) aa.Assign("resArray", "SCALARS", "POINT_DATA") aa.Update() rf2 = vtk.vtkRearrangeFields() rf2.SetInputConnection(aa.GetOutputPort()) rf2.AddOperation("COPY", "SCALARS", "POINT_DATA", "DATA_OBJECT") # construct pipeline for original population popSplatter = vtk.vtkGaussianSplatter() popSplatter.SetInputConnection(rf2.GetOutputPort()) popSplatter.SetSampleDimensions(50, 50, 50) popSplatter.SetRadius(0.05) popSplatter.ScalarWarpingOff() popSurface = vtk.vtkContourFilter() popSurface.SetInputConnection(popSplatter.GetOutputPort()) popSurface.SetValue(0, 0.01) popMapper = vtk.vtkPolyDataMapper() popMapper.SetInputConnection(popSurface.GetOutputPort()) popMapper.ScalarVisibilityOff() popMapper.ImmediateModeRenderingOn() popActor = vtk.vtkActor() popActor.SetMapper(popMapper) popActor.GetProperty().SetOpacity(0.3) popActor.GetProperty().SetColor(.9, .9, .9) # construct pipeline for delinquent population lateSplatter = vtk.vtkGaussianSplatter() lateSplatter.SetInputConnection(aa.GetOutputPort()) lateSplatter.SetSampleDimensions(50, 50, 50) lateSplatter.SetRadius(0.05) lateSplatter.SetScaleFactor(0.05) lateSurface = vtk.vtkContourFilter() lateSurface.SetInputConnection(lateSplatter.GetOutputPort()) lateSurface.SetValue(0, 0.01) lateMapper = vtk.vtkPolyDataMapper() lateMapper.SetInputConnection(lateSurface.GetOutputPort()) lateMapper.ScalarVisibilityOff() lateActor = vtk.vtkActor() lateActor.SetMapper(lateMapper) lateActor.GetProperty().SetColor(1.0, 0.0, 0.0) # create axes popSplatter.Update() bounds = popSplatter.GetOutput().GetBounds() axes = vtk.vtkAxes() axes.SetOrigin(bounds[0], bounds[2], bounds[4]) axes.SetScaleFactor(popSplatter.GetOutput().GetLength() / 5.0) axesTubes = vtk.vtkTubeFilter() axesTubes.SetInputConnection(axes.GetOutputPort()) axesTubes.SetRadius(axes.GetScaleFactor() / 25.0) axesTubes.SetNumberOfSides(6) axesMapper = vtk.vtkPolyDataMapper() axesMapper.SetInputConnection(axesTubes.GetOutputPort()) axesActor = vtk.vtkActor() axesActor.SetMapper(axesMapper) # label the axes XText = vtk.vtkVectorText() XText.SetText(xAxis) XTextMapper = vtk.vtkPolyDataMapper() XTextMapper.SetInputConnection(XText.GetOutputPort()) XActor = vtk.vtkFollower() XActor.SetMapper(XTextMapper) XActor.SetScale(0.02, .02, .02) XActor.SetPosition(0.35, -0.05, -0.05) XActor.GetProperty().SetColor(0, 0, 0) YText = vtk.vtkVectorText() YText.SetText(yAxis) YTextMapper = vtk.vtkPolyDataMapper() YTextMapper.SetInputConnection(YText.GetOutputPort()) YActor = vtk.vtkFollower() YActor.SetMapper(YTextMapper) YActor.SetScale(0.02, .02, .02) YActor.SetPosition(-0.05, 0.35, -0.05) YActor.GetProperty().SetColor(0, 0, 0) ZText = vtk.vtkVectorText() ZText.SetText(zAxis) ZTextMapper = vtk.vtkPolyDataMapper() ZTextMapper.SetInputConnection(ZText.GetOutputPort()) ZActor = vtk.vtkFollower() ZActor.SetMapper(ZTextMapper) ZActor.SetScale(0.02, .02, .02) ZActor.SetPosition(-0.05, -0.05, 0.35) ZActor.GetProperty().SetColor(0, 0, 0) # Graphics stuff # ren = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(ren) renWin.SetWindowName("vtk(-, Field.Data") renWin.SetSize(300, 300) # Add the actors to the renderer, set the background and size # ren.AddActor(axesActor) ren.AddActor(lateActor) ren.AddActor(XActor) ren.AddActor(YActor) ren.AddActor(ZActor) ren.AddActor(popActor) #it's last because its translucent) ren.SetBackground(1, 1, 1) camera = vtk.vtkCamera() camera.SetClippingRange(.274, 13.72) camera.SetFocalPoint(0.433816, 0.333131, 0.449) camera.SetPosition(-1.96987, 1.15145, 1.49053) camera.SetViewUp(0.378927, 0.911821, 0.158107) ren.SetActiveCamera(camera) XActor.SetCamera(camera) YActor.SetCamera(camera) ZActor.SetCamera(camera) # render and interact with data iRen = vtk.vtkRenderWindowInteractor() iRen.SetRenderWindow(renWin) renWin.Render() img_file = "financialField3.png" vtk.test.Testing.compareImage( iRen.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=25) vtk.test.Testing.interact()