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Classes Intersectool and Intersector to find the intersections of two geodesic lines or line segments.
Class Intersector is a pure Python version of Karney's C++ class Intersect.
Class Intersectool is a wrapper to invoke Karney's IntersectTool utility, but intended for testing purposes only.
Set env variable PYGEODESY_INTERSECTTOOL to the (fully
qualified) path of the IntersectTool executable. For usage
and some examples run "env
PYGEODESY_INTERSECTTOOL=<IntersectTool-path> python3 -m
pygeodesy.geodesici --help".
Both Intersectool and Intersector provide methods All,
Closest, Next and Segment and
produce XDict instances with 4 or more items. Adjacent methods
All5, Closest5, Next5 and
Segment return or yield Intersectool5Tuple or Intersector5Tuples with the lat-, longitude and azimuth
of each intersection as an extended, geodesic Position-like
GDict
instance.
For more details, see the C++ GeographicLib documentation, Charles F.F. Karney's paper Geodesics intersections and S. Baselga Moreno & J.C. Martinez-Llario's Intersection and point-to-line solutions for geodesics on the ellipsoid.
Version: 24.07.22
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XDict 4+Item result from Intersectool and Intersector methods All,
Closest, Next and Segment
with the intersection offsets sA, sB and
sX0 in meter and the coincidence
indicator c, an int, +1 for parallel, -1
for anti-parallel or 0 otherwise.
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_IntersectBase (INTERNAL) Base class for Intersectool and Intersector. |
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Intersectool Wrapper to invoke Karney's utility IntersectTool similar to class Intersector. |
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Intersector Finder of intersections between two goedesic lines, each an instance of GeodesicLineExact, wrapped GeodesicLine or GeodesicLineSolve. |
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Intersect7Tuple 7-Tuple (A, B, sAB, aAB, c, kA, kB) with
A and B each a LatLon or LatLon4Tuple(lat, lon, height, datum)
of the intersection on each geodesic line, the distance
sAB in in meter and angular distance
aAB in degrees between A and
B, coincidence indicator c and segment
indicators kA and kB all
int, see XDict
and method intersect7.
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Intersectool5Tuple 5-Tuple (A, B, sAB, aAB, c) with A and
B the Position of the intersection on
each geodesic line, the distance sAB between
A and B in meter, the
angular distance aAB in degrees and
coincidence indicator c (int), see XDict.
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Intersector5Tuple 5-Tuple (A, B, sAB, aAB, c) with A and
B the Position of the intersection on
each geodesic line, the distance sAB between
A and B in meter, angular
distance aAB in degrees and coincidence
indicator c (int), see XDict.
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Middle5Tuple 5-Tuple (A, B, sMM, aMM, c) with A and
B the line segments including the mid-point
location in latM, lonM, distance
s1M in meter and angular distance
a1M in degrees, the distance between both
mid-points sMM in meter and angular
distance aMM in degrees and coincidence
indicator c (int).
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| Variables | |
__all__ = _ALL_LAZY.geodesici
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