Overview

This topic describes how to display a dipping, planar structure, as though it were horizontal and the view was “looking down”. This will be referred to as the “Plane of Vein” view. Although the orientation of the structure can be defined by various methods, this topic will use the unambiguous Dip and Dip Direction method.

Strike and dip notation is inconsistent and must include the handedness of the measurement to make it unambiguous. In this case, the handedness of the strike is assumed to be left-handed. A left-handed strike is one where the structure slopes downwards to the left when viewed along the direction of strike.

The dip direction is unidirectional. In this case it is 180° – the direction a marble would roll down the planar feature.

Dip is the angle at which a planar feature is inclined to the horizontal plane. It is always a positive value in the range 0° (horizontal) to 90° (vertical).

Summary

To achieve a “Plane of Vein” view:

DH | Calculations | POV	Wireframe | Rotate	Display Limits | 3D View
Plane strike = Dip Direction + 270	Z axis rotation = 180 – Dip Direction	Azimuth = Dip Direction + 180
Plane dip =Dip x -1	X axis rotation = Dip x -1	Inclination = Dip – 90
	Rotate order = ZXY	Roll = 0
	Centre of Rotation
Grid East, North, RL origin	Rotate Around = Point (East, North, Z)	Viewpoint X, Y, Z
The actual values are not critical, but they must be the same in both functions		Use Seek Tool for suitable Viewpoint