aRchi: angle3d – R documentation

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angle3d

Calculate the zenith angle from xyz coordinates

Calculate a zenith angle between two segments from 3d (i.e x,y,z) coordinates

angle3d(o, a, b)

`o`	3d coordinates of the common point of the two segments
`a`	3d coordinates of the other point of segment a
`b`	3d coordinates of the other point of segment b

The angle in degree

origin=c(0,0,0)
a=c(0,0,1)
b=c(1,0,0)

angle3d(o=origin,a=a,b=b)

Quantitative Structural Model ('QSM') Treatment for Tree Architecture

v1.0.5

CeCILL

Authors

Olivier Martin

Initial release