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Faults and
Breaklines
Define faults and breaklines when gridding
your data. Faults act as barriers to the information flow, and data on
one side of the fault will not be directly used to calculate grid node
values on the other side of the fault. Breaklines include Z values.
When Surfer sees a breakline, it uses the Z value of the breakline in
combination with nearby data points to calculate the grid node value.
Unlike faults, breaklines are not barriers to information flow and the
gridding algorithm can cross the breakline to use a point on the other
side to calculate a grid node value. Use breaklines to define
streamlines, ridges, and other breaks in slopes.
The gridding methods that support faults
are: Inverse Distance to a Power, Minimum Curvature, Nearest Neighbor,
and Data Metrics.
The gridding methods that support
breaklines are: Inverse Distance to a Power, Kriging, Minimum
Curvature, Nearest Neighbor, Radial Basis Function, Moving Average,
Data Metrics, and Local Polynomial.
Original contour map without faults or
breaklines.
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The same data set gridded with two
faults and displayed as a contour map. |
The same data set gridded with two breaklines
and displayed as a contour map. |
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