6/23/2023 0 Comments Surpac lesson![]() This angle is measured positive clockwise from the Y axis (North). In geologic modeling we generally consider the azimuth, or bearing, which is denoted \(\alpha\). A single angle may be used to describe the rotation. Orienting an object or coordinate system is substantially easier in 2D than in 3D. The underlying principles explained here will also allow for modelers to transform between different conventions. This lesson will use and explain the conventions behind the GSLIB (Deutsch
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