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Enhanced Stereonet Tool Kit: Stereonet Overlay
The Stereonet Overlay option in the Tools menu allows the user to overlay a full stereonet grid (Polar, Equatorial or Custom axis) on top of Pole, Scatter, Contour or Major Planes plots.
Stereonet Overlay option under Tools toolbar
Stereonet Overlay Dialog
Polar Stereonet Overlay
Equatorial Stereonet Overlay
Custom Stereonet Overlay with Trend = 0 / Plunge = 45
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Enhanced Stereonet Tool Kit: User Defined Trend/Strike Reference Line
The azimuth direction is taken as a relative angle with respect to a reference line. This line is usually the axis of a drift of tunnel but can be any reference direction that is known (accurate measure of this reference azimuth should be taken from level plans). Depending on the convention setting, the azimuth to the reference line is described as either the trend or the strike angle.
The Declination in the Job Control dialog can be used for azimuth correction. This is typically used to correct for magnetic declination, but can be used to adjust to grid north.
Change the declination in the Job Control Dialog
With traverse orientation, the azimuth of the reference line is input in the Traverse Information dialog as the "orientation 1" of the traverse. This value is added to the dipdirection or strike (depending on the convention setting) data measured on the traverse and recorded in the orientation columns.
Orientation 1 of the traverse acts as the azimuth of the reference line
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Enhanced Stereonet Tool Kit: Add Planes
The Add Plane option allows the user to graphically add a pole / plane to a stereonet plot (Pole, Scatter, Contour or Major Planes plots).
The Add Plane option under Select menu
It is very easy to add a plane in Dips. After the Add Plane option is selected, the user will see an interactive rubber plane as the mouse cursor moves around the stereonet. The status bar at the lower right will also display the current orientations of the plane.
Rubber plane for interactive data analysis
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Enhanced Stereonet Tool Kit: Add Cone
The Add Cone option allows the user to add cone traces or "small circles" on the stereonet. The cones can be centered about any axis, and may represent friction circles, toppling bounds, etc. While using the Add Cone function, "cancel", "line" and "pole snap" are available in the right click menu. Line displays a moving line through the center of the stereonet, which follows the cursor. Pole Snap will "snap" the cone axis to the pole nearest to the cursor location. It is only applicable on a Pole Plot.
The Add Cone option under Tools Menu
Pole Snap is available in the right click menu when adding a cone
The Add Cone Dialog
Pole Plot with the added cone (Trend = 225, Plunge = 0, Angle = 60, in dark green)
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Enhanced Stereonet Tool Kit: Daylight Envelope
Daylight envelopes corresponding to planes can be displayed using the checkboxes provided in the Edit Planes or Edit Sets dialogs.
Select Daylight Envelope in the Edit Sets Dialog
Daylight envelopes are used primarily in slope stability analysis work. It is kinematically feasible for any poles that plot within a daylight envelope to slide. To determine the stability of such poles, you must also consider the frictional strength of the planes. Friction cones can be added to the stereonet using the Add Cone option.
Pole Plot showing daylight envelope for sliding analysis
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Enhanced Stereonet Tool Kit: Onscreen Pole Identification
Dips allows the user to do personal labeling with onscreen text and onscreen arrow functions in the Tools menu.
Add Text and Add Arrow options under Tools menu
Pole Plots with extensive labeling using onscreen texts and onscreen arrows
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Enhanced Stereonet Tool Kit: Onscreen Angle Measurement
The Measure Angle option allows the user to calculate the angle between any two points on the stereonet.
Measure Angle option under Tools menu
Result is displayed in a Measure Angle Dialog
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Enhanced Stereonet Tool Kit: Data Rotation
The Rotate Data option allows the user to rotate data about some arbitrary axis. This option can be used to adjust structural data in a folded domain, or to create "inclined" hemisphere projections.
Rotate Data option under Select menu
Rotate Data Dialog
Data Before Rotation
Data After Rotation (Trend = 45, Angle of Rotation = 45)
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