Grid Calculator

Use the Grid Calculator dialog box to perform mathematical operations on your horizon grids. View image

You have the following options:

Button	Description
Select Grid section	Double click on T[x] or A[x] to enter time and amplitude grids, respectively, as variables in the equation. Read more Horizon grids in this list have the grid geometry shown in the Grid Geometry section. To see additional horizon grids, select a different grid geometry file. Remember that all grids in an equation must have the same grid geometry. If A[x] is not visible under Select Grid for a particular horizon, then only the time horizon was gridded. Conversely, if T[x] is not visible, then only the amplitude horizon was gridded.
Gridding Geometry section	This box gives you the grid geometry statistics (origin coordinates, grid spacing, grid lines, and grid orientation) for the selected grid geometry. Click on the down arrow to select another grid geometry file. All horizons listed under Select Horizons in the upper left-hand corner are associated with the selected grid geometry file. Select a new grid geometry file to see additional horizons. Remember that all grids used in an equation must have the same grid geometry.
Target Grid (New) list	Grid math calculations are made on the target grid. Read more The target grid is the left-hand term in the equation(s). You have the following options: Use the default name (‘HzMath01’). Select an existing grid from the pulldown menu. Type a new grid name into the text box.
Number Pad section	Click on numbers or symbols in the number pad to enter them in the equation boxes. You can also enter numbers and symbols from your keyboard.
<,>	Use a comma to separate variables in a function.
<AC>	Clears the active equation.
<C>	Clears one character to the left of the cursor in the active equation.
Create New Horizon File list	Select Create New Horizon File to create a new horizon grid as defined by the equation box. Select Report Statistics Only to get a summary report of the calculation statistics without creating a new grid. Statistics will appear in the Message box area.
Time Unit in Math list	Set the time unit of constants in the equation to be us (microseconds), ms (milliseconds), or seconds. WinPICS knows the time unit of any horizon grids entered in the equation.
Message section	Helpful hints, statistics on completed calculations, and error messages appear here.
Grid Math Equations	Read more to find out how to set up grid math equations.
<Execute>	Click on <Execute> to begin your calculations. Statistics will appear in the Message area when the calculations are complete. Click <Done> when you have viewed statistics.
<Cancel>	Click <Cancel> to exit window and discard any changes you have made.

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