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Creating
Horizon Math Equations
- Select the Target
Horz, which is the horizon to which horizon math calculations are
made. It is the left-hand term in the equation box. Select an existing horizon from the pulldown menu or enter
a new horizon (default is ‘HzMath01’). If you select Report
Statistics Only instead of Create
New Horizon File, ‘Statistics =’ will appear as the left-hand term.
- Select the 3D areas or 2D lines from the Select Areas and Select Lines boxes. By default, horizon math performs calculations
on all 3D areas and 2D lines.
- Select to create time or
amplitude equations. Active equation boxes are white and have a check
mark. Equation for Time is active
by default. Click on the box next to Equation
for Amplitude to make that box active. If both equations boxes
are active, you will need to click in the equation box you wish to define
before entering new terms.
- To define the equations,
do one or more of the following:
- Select functions by clicking on MAX, MIN, MEAN, RMS, STD, AMP, or SQRT from the keypad. The function name will appear in the equation box with the cursor inside
the function.
- Double click on T[x] or A[x] under Select Horz to select a time or amplitude horizon as a variable in the function.
- Type numbers or symbols
from your keyboard or by clicking on the keypad.
- To select a second horizon
as a variable, type a comma, then double click on the on T[x] or A[x].
- Click <Execute> to start the
horizon math calculations.
See Horizon Math Examples for more details.
- Hit the C function button to
clear one character or the AC function button
to clear the entire equation.
- Watch the Message area for helpful
hints.
- Enter equation terms from
left to right.
- When creating amplitude
ratios in horizon math, multiply the ratio by 100 so that integer
values will appear within the map window. Otherwise, any ratio value below
one appears as a zero.
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