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Stereonet Plots: General
The main forms of data visualization in Dips are the various Plot options available in the View menu and View toolbar: Pole, Scatter, Contour, Rosette, and Major Planes Plots. The Contour Plot can also be viewed overlaid with one of the other plots.
Various plot options under View menu
Stereonet Plots: Pole Plots
A Pole Plot is the most basic representation of the orientation data (ie. the orientation data pairs in the first two columns of a Dips file). On a pole plot, points are plotted on a stereonet that correspond to the orientation of either (1) linear features or (2) poles representing planes.
A sample Pole Plot
Stereonet Plots: Scatter Plots
A Scatter Plot permits visual analysis of pole distribution by plotting symbols representing the number of approximately coincident poles at a given orientation. Symbols on this plot correspond to actual grid locations, and the quantities represented are the numbers of poles within a half grid spacing of the grid point. These grid locations, will not, in general, correspond exactly to the locations of poles plotted in the Pole Plot.
A sample Scatter Plot
Stereonet Plots: Contour Plots
A Contour Plot is the main tool in Dips for analyzing mean and / or maximum pole concentrations. It is used to visualize the clustering of orientation data not immediately evident from a Pole Plot or a Scatter Plot. The contours represent statistical pole concentrations, calculated using the distribution method (Fisher or Schmidt) specified in the Stereonet Options dialog. A Terzaghi Weighting can be applied to a Contour Plot to correct sampling bias from data collection and to generate a weighted contour plot if the Dips file contains Traverse information.
A sample Contour Plot
Stereonet Plots: Major Planes Plot
The Major Planes Plot option in Dips allows the user to view planes only on a clean stereonet, without poles or contours. In addition, a listing of plane orientations is displayed in the legend, in the format governed by the current Convention.
A sample Major Planes plot
Stereonet Plots: Overlay Contours
A Contour Plot can be overlaid on Pole, Scatter, or Major Planes plots, with the Overlay Contours option.
A sample Pole Plot overlaid with Unweighted Contour Plot
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