A stereographic projection, or more simply a stereonet, is a powerful method for displaying and manipulating the 3dimensional geometry of lines and planes davis and reynolds 1996. Pdf stereographic projection techniques for geologists. Spica is a new computer program for stereographic projection in interactive crystallographic analysis, which inherits. Crystallography this gui was created in matlab and serves as an educational tool for both novice and experienced cry. In order to make plotting of the stereographic projection easier, a device called a stereographic net or stereonet is used. Stereographic projection techniques for geologists and engineers second edition article pdf available. Stereoproj is a python script software that plots the stereographic projection of a crystal given its lattice parameters a,b,c. Pdf history of the stereographic projection and its.
Pdf stereographic projection basic formulations and matlab. In geometry, the stereographic projection is a particular mapping function that projects a sphere onto a plane. Download mathematica notebook stereographicprojection. The intersection made by the line or plane with the spheres. History of the stereographic projection and its early use in geology. Part ii and part ii c6h3 materials science and metallurgy. Application of smr and stereographic projection method in. Stereonets are a convenient and common way to represent structural orientation data. The importance of the stereographic projection in crystallography derives from the fact. Stereographic projection little mathematics library. Software for stereographic projection there are several pieces of software that youd like to check out for that purposes. The orientations of lines and planes can be plotted relative to the center of a sphere, called the projection sphere, as shown at the top of fig. Stereographic projection an overview sciencedirect topics. Wulff net used in measurement of angles in stereographic.
The stereographic projection of the inclined plane is a circle whose center is at c, and whose radius, r, are. More in detail, you can project in equal area, or you can choose to project in equeal projection. Stereographic projection crystallography slideshare. For the love of physics walter lewin may 16, 2011 duration. Although the north n and south s poles are shown on the stereonet, these do not correspond to the north and south poles as defined in the projection above. This lab will give you practical experience using stereonets to plot your structural. The stereographic projection is a mapping that projects the sphere on to a plane. Find the user manual you need for your audio device and more at manualsonline. Stereographic projectionbasic formulations and matlab based graphical representation there are many methods to represent spherical features in two two. The purpose of the stereographic projection in crystallography the stereographic projection is a projection of points from the surface of a sphere on to its equatorial plane. Stereographic projection is one of the most powerful research tools for crystallography in.
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