Geodesic
An Algebraic Equation for the Central Projection
Journal for geometry and graphics, Tome 7 (2003) no. 2, pp. 137-144 Cet article a éte moissonné depuis la source Heldermann Verlag

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A necessary and sufficient condition for a central-axonometric reference system to be the image of a positively oriented orthonormal frame under a central projection is given by a single complex equation. The presented equation is an analogon of the Gauss equation that characterizes the reference system of an orthogonal axonometry.
Classification : 51N05
Mots-clés : central projection, central axonometry, Gauss equation 
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     author = {A. D�r},
     title = {An {Algebraic} {Equation} for the {Central} {Projection}},
     journal = {Journal for geometry and graphics},
     pages = {137--144},
     year = {2003},
     volume = {7},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JGG_2003_7_2_JGG_2003_7_2_a1/}
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A. D�r. An Algebraic Equation for the Central Projection. Journal for geometry and graphics, Tome 7 (2003) no. 2, pp. 137-144. http://geodesic.mathdoc.fr/item/JGG_2003_7_2_JGG_2003_7_2_a1/