Last Update: 11/28/2018
To reduce unevenly spaced XYZ data, first select the Z column and go to menu Plot > 2D : Contour: Contour - Color Fill to create a contour plot. Then right click on the contour plot and select Generate Grid to bring up Generate Grid: xyzgrid dialog.
In this dialog, you can specify number of points along X and Y directions to make the reduction. You can even reduce the XYZ data in a specified XY region by setting Grid Range.
For more details, please refer to this page.
Minimum Origin Version Required: 2016 SR0
Keywords:interpolate XYZ, reduce XYZ, undersample XYZ