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| I have translated this example to python: | | I have translated this example to [VTK/Examples/Python/Plotting/ScatterPlot|Python]] --[[User:Diego0020|Diego0020]] |
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| from __future__ import division
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| import vtk
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| import math
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| view=vtk.vtkContextView()
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| view.GetRenderer().SetBackground(1.0,1.0,1.0)
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| view.GetRenderWindow().SetSize(400,300)
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| chart=vtk.vtkChartXY()
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| view.GetScene().AddItem(chart)
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| chart.SetShowLegend(True)
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| table=vtk.vtkTable()
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| arrX=vtk.vtkFloatArray()
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| arrX.SetName('X Axis')
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| arrC=vtk.vtkFloatArray()
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| arrC.SetName('Cosine')
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| arrS=vtk.vtkFloatArray()
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| arrS.SetName('Sine')
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| arrT=vtk.vtkFloatArray()
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| arrT.SetName('Sine-Cosine')
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| table.AddColumn(arrC)
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| table.AddColumn(arrS)
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| table.AddColumn(arrX)
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| table.AddColumn(arrT)
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| numPoints=40
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| inc=7.5/(numPoints-1)
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| table.SetNumberOfRows(numPoints)
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| for i in xrange(numPoints):
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| table.SetValue(i,0,i*inc)
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| table.SetValue(i,1,math.cos(i*inc))
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| table.SetValue(i,2,math.sin(i*inc))
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| table.SetValue(i,3,math.sin(i*inc)-math.cos(i*inc))
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|
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| points=chart.AddPlot(vtk.vtkChart.POINTS)
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| points.SetInputData(table,0,1)
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| points.SetColor(0,0,0,255)
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| points.SetWidth(1.0)
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| points.SetMarkerStyle(vtk.vtkPlotPoints.CROSS)
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| points=chart.AddPlot(vtk.vtkChart.POINTS)
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| points.SetInputData(table,0,2)
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| points.SetColor(0,0,0,255)
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| points.SetWidth(1.0)
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| points.SetMarkerStyle(vtk.vtkPlotPoints.PLUS)
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| points=chart.AddPlot(vtk.vtkChart.POINTS)
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| points.SetInputData(table,0,3)
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| points.SetColor(0,0,255,255)
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| points.SetWidth(1.0)
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| points.SetMarkerStyle(vtk.vtkPlotPoints.CIRCLE)
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| view.GetRenderWindow().SetMultiSamples(0)
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| view.GetInteractor().Initialize()
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| view.GetInteractor().Start()
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