| OpendTect User Documentation version 4.2 |
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Name
Horizon -- Attribute that enables advanced calculations on horizons
Description
This attribute is designed to extend the use of surface data. In the past, surface data could only be visualized. Now, surface data can be used for calculations. This attribute can be used for several purposes. When applying it to a horizon only, it will give similar results as calculating attributes on the horizon. However, when using the output of this attribute as input to a mathematical expression, the output can vary from just a simple thickness calculation to a highly advanced combination of several attributes.
As shown above, there are two possible outputs, namely Z (depth) and Surface data. For each position on the horizon, the value (Z or surface data) is used as output along the complete trace.