Assertion: coordinate system's angle | /r/HasProperty | measured
Facets:
value: from it
type: OTHER
value: from line segmentof
type: OTHER
value: counterclockwise
type: DEGREE
value: eastwards
type: MANNER
value: from the cartesian
type: OTHER
value: from some prime meridian
type: LOCATION
Source sentences:
text: This convention is used, in particular, for geographical coordinates, where the "zenith" direction is north and positive azimuth (longitude) angles are measured eastwards from some prime meridian.
text: Local azimuth angle would be measured, e.g., counterclockwise from S to E in the case of (U, S, E) .
text: These formulae assume that the two systems have the same origin, that the spherical reference plane is the Cartesian xy plane, that θ is inclination from the z direction, and that the azimuth angles are measured from the Cartesian x axis (so that the y axis has φ = +90°).
text: Note that the " The same position on a spheroid has a different angle for latitude depending on whether the angle is measured from the normal line segmentof the ellipsoid (angle) or the line segmentfrom the center (angle).
text: In the most common polar system, the reference ray points off toward the right, and angles are measured counterclockwise from it (illustration at left).
text: In a less common scheme, the reference ray points upward, and angles are measured clockwise from it (illustration at right).