Talk:VTK/Examples/Cxx/Plotting/ScatterPlot: Difference between revisions

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

Revision as of 16:00, 28 August 2013

I have translated this example to [VTK/Examples/Python/Plotting/ScatterPlot|Python]] --Diego0020