Instance the Krig_3D Geology Module. In the user interface, select Gridding Options:
Enter the data extents (enter only MinX, MinY) noted from post_samples: Samples parameters.
In the same window (Gridding Options), for Grid Type, select Finite Difference Gridding then open the X window.
This user interface allows us to customize our grid to our needs. Since we have chosen to customize our grid in the X direction:
DelX: is the length of the first unit square in the X direction.
Xr: is the number of squares in the X direction
Cr: is the percentage of change for each progressive square. The change allows us to vary our grid based on the density of our data.
So, our grid can have an initial cell length of DelX, the next cell would be Cr percent smaller or larger, in magnitude, than our initial DelX, and there is only Xr cells in our initial grid. We can have up to 8 different variations in the X direction. The same is true in the Y direction.
To expand our grid to fit the area of our data points, we add to our initial grid by changing our parameters in X.
Start by entering a value of 20 as the first Xr parameter, and 0.9 in the first Cx parameter. Then hit Accept All Current Values in the main Krig_3D_Geology window. Once you’ve done that, you’ll notice that the Del X parameter for the second line in X was set to 2.7017. This was automatically calculated based off the values we set before.
Now set Xr to 20 and Cx to 1.11 in the second row, and hit Accept again.
You’re window should now show:
Repeat the above process exactly for Y.
Press "Accept all current values" in the Krig_3D_Geology user interface
In the viewer, you should see the following image.
