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Once you have created a curve in DPlot you might want to get the point pairs of the curves back into your HTBasic program for further computing. This is easily possible for 2D curves using the function FNDplot_getcurdat, for example:
REAL Curve1(1:200,1:2) ! curve with maximum 200 xy point pairs
INTEGER Curve,Numpoints
Curve=2 ! get data points for curve 2
!
! now get the curve data
Numpoints=FNDplot_getcurdat(Doc_num,Curve,Curve1(*))
The variable Doc_num contains the DPlot document number of the desired DPlot document. The function FNDplot_getcurdat returns the number of transferred xy point pairs in variable Numpoints and the array Curve1(*) contains the data points. If Numpoints is 0 (zero) no data have been transfered.
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