The Stereographic Projection
AimsBefore you startIntroductionBasic conceptDemonstration of projectionImportant properties of the stereographic projectionThe Wulff netUse of the Wulff net in constructing a stereogramPlotting poles on the stereogram through use of the Wulff netIdentifying poles on a stereogram through use of the Wulff netApplications of the Stereographic Projection  SlipInteractive Wulff netSummaryQuestionsGoing furtherTLP creditsTLP contentsShow all contentViewing and downloading resourcesAbout the TLPsTerms of useFeedbackCredits Print this page
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Questions
Deeper questions
The following questions require some thought and reaching the answer may require you to think beyond the contents of this TLP.

Using a Wulff net, plot the {100} poles on a stereogram aligned so that the paper is in the xy plane. By measuring angles along great circles, with rotation of the Wulff net if necessary, plot 320, 323, 510 and 511. Find the angle between 323 and 511.

Plot the pole 141 by plotting two intersecting great circles on a Wulff net.

Plot the pole 211 by drawing small circles around 001, 111 and 110 on a Wulff net.

Identify all green poles on this diagram by use of vector addition and zonal relationships.