| 1 |
viewer=gui.CreatePlotViewer() |
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| 2 |
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| 3 |
data=gui.PlotData() |
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| 4 |
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| 5 |
data.AddXY(1.0,0.0) |
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| 6 |
data.AddXY(1.5,0.23) |
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| 7 |
data.AddXY(2.0,0.45) |
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| 8 |
data.AddXY(3.2,0.79) |
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| 9 |
data.AddXY(4.0,0.61) |
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| 10 |
data.AddXY(5.1,0.52) |
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| 11 |
data.AddXY(7.0,0.33) |
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| 12 |
data.AddXY(8.0,0.41) |
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| 13 |
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| 14 |
viewer.AddData(data).SetSymbolSize(5).SetMode(viewer.POINTS) |
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| 15 |
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| 16 |
from math import sin |
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| 17 |
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| 18 |
class sinc(gui.PlotFunction): |
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| 19 |
def __init__(self,width=1): |
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| 20 |
gui.PlotFunction.__init__(self) |
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| 21 |
self.width_=width |
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| 22 |
def Func(self,x): |
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| 23 |
if x==0: |
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| 24 |
return 1.0 |
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| 25 |
else: |
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| 26 |
return sin(self.width_*x)/(self.width_*x) |
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| 27 |
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| 28 |
sincinst=sinc() |
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| 29 |
viewer.AddData(sincinst).SetMode(viewer.LINES) |
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| 30 |
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| 31 |
viewer.SetMinimumX(-10.0) |
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| 32 |
viewer.SetMaximumX(10.0) |
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| 33 |
viewer.SetMinimumY(-0.5) |
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| 34 |
viewer.SetMaximumY(1.5) |
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