Extract data from contour plot

[#1]

Hi, JMP/JSP expert,

I am trying to extract the fitted data from 2-D contour plot.

The way I did is choose "save" --> Generate grid --> input x, y data count -->OK.

Below is the JSL,

dt = Current Data Table();
obj = dt << Contour Plot( X( :X, :Y ), Y( :height ), by( :sample ) );
obj << Generate Grid( 200, 240 );

In this method, the data I got is always a rectangle shape from the x,y input. 
However, the real contour map is a circular shape.

Is there a way to extract the data for the same circular shape that created by contour plot?
Thank you

[#2]

Hi @Stokes ,

I am sure that there is a solution for this but I think that you might need to provide some more information to get the best help. Can you describe the data, why the contour plot is a circle, and why you need to extract the fitted data from the contour plot? What will you do with the fitted data?

Thanks,
Phil