Difference between revisions of "Sphtarea.m"
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r1,r2,r3 - three-element unit vectors with Cartesian | r1,r2,r3 - three-element unit vectors with Cartesian | ||
Revision as of 18:52, 5 June 2026
Area of the curvilinear triangle on the unit sphere defined by the vertex coordinates supplied.
Syntax
S=sphtarea(r1,r2,r3,sflag)
Parameters
r1,r2,r3 - three-element unit vectors with Cartesian
coordinates of triangle vertices
sflag - 'signed' would take into account surface
normal direction, 'unsigned' (default)
would always return a positive area
Outputs
S - spherical triangle surface area
See also
Integration grids, Appendix I: powder grids
Version 2.6, authors: Ilya Kuprov
