(ORG-5160)

9.1 adds a new x function interp2 to interpolate a group of existing xyz data to find z value for given (x,y) value, by 8 alternative methods: Nearest, Random Kriging, Random Renka Cline, Random Shepard, Random TPS, Spline, Triangle and Weight Average. 

Sample OPJ to download to try: 2D interpolate.opj

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How to interpolate z from xy using interp2 x function:

1. In script window, run interp2 -d;

1.  to open interpolation dialog;
2. Pick data (x,y) from worksheet

1. as XY Values To Interpolate, and

1. a serial of xyz data as Input for interpolation

1. ; 
2. Select a Method

1.  from drop down menu;
2. Assign destination columns as Results of Interpolation.