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CPlotView:SetIndex
The SetIndex method changes the current plot series index to a specified value.
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bSuccess = CPlotView:SetIndex( nSeries ) |
nSeries is the series index in the range 1 to
Count.
On success,
this method returns true
On failure,
this method returns false.
A plot window shows all series simultaneously in over-plot mode, or it displays only the current series in animation mode. Therefore, if the plot window is in over-plot mode, changing the current series does not affect the appearance of the window.
The following script fragment plots some points in different series of a CPlotView. It then sets the index back to the first series and returns some information about the current series:
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V = CPlotView:new() |
-- create a CPlotView |
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V:Add( 25, 66.5) |
-- add a point to the data array |
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... |
-- add 99 more points |
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V:PlotPoints() |
-- plot 100 points in a new plot window |
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V:Empty() |
-- empty all the points |
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V:Add( 20, 51.4) |
-- add 1 point to a new data array |
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V:AddSeries() |
-- plot the point as a new series |
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V:Add( 32, 100.75) |
-- add 1 point to a new data array |
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V:AddSeries() |
-- plot the point as a new series |
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V:SetIndex(1) |
-- go back to series 1 |
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n = V:Count() |
-- number of plot series |
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c = V:GetIndex() |
-- index of current series |
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Printf( "n=%d, cur=%d", n,c) |
-- result: n=3, cur=1 |