mirror of https://github.com/CGAL/cgal
41 lines
1.1 KiB
TeX
41 lines
1.1 KiB
TeX
% begin cgal manual page
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\begin{ccRefClass}{Sphere_direction<R>}\ccCreationVariable{d}
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\ccDefinition
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An object \ccc{c} of type \ccc{Sphere_direction<R>} is a direction on
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the surface of the unit sphere. Such directions can be used to
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describe walks that are part of great circles.
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\ccSetOneOfTwoColumns{5cm}
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\ccTypes
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\ccNestedType{R}{representation class.}
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\ccNestedType{RT}{ring type.}
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\ccSetOneOfTwoColumns{5cm}
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\ccCreation
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\ccConstructor{Sphere_direction<R>()}{creates some direction.}
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\ccConstructor{Sphere_direction<R>(Sphere_circle<R> c)}{ creates the
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direction corresponding to the circle \ccc{c}. }
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\ccConstructor{Sphere_direction<R>(Sphere_point<R> p, Sphere_point<R>
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q)}{ creates a direction that describes the orientation of the great
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circle through $p$ and $q$ (oriented such that the segment $pq$ is
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the shorter one of the two possible ones. \ccPrecond $p$ and $q$ are
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not opposite on $S_2$. }
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\ccSetTwoOfThreeColumns{4cm}{2cm}
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\ccOperations
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\ccMethod{Sphere_direction<R> opposite() ;}{returns the opposite of
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\ccc{d}. }
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\end{ccRefClass} |