uxarray.UxDataArray.cross_section

uxarray.UxDataArray.cross_section#

UxDataArray.cross_section()#

Extracts a cross-section sampled along an arbitrary great-circle arc (GCA) or line of constant latitude/longitude.

Exactly one mode must be specified:

  • Great‐circle: supply both start and end (lon, lat) tuples, samples a geodesic arc.

  • Constant latitude: supply lat alone (float), returns points along that latitude.

  • Constant longitude: supply lon alone (float), returns points along that longitude.

Parameters:

  • start (tuple[float, float], optional) – (lon, lat) of the geodesic start point.

  • end (tuple[float, float], optional) – (lon, lat) of the geodesic end point.

  • lat (float, optional) – Latitude for a constant‐latitude slice.

  • lon (float, optional) – Longitude for a constant‐longitude slice.

  • steps (int, default 100) – Number of sample points (including endpoints).

Returns:

A DataArray with a new “steps” dimension, plus “lat” and “lon” coordinate variables giving the sampling positions.

Return type:

xr.DataArray

Examples

Cross-section between two points (lon, lat)

>>> uxda.cross_section(start=(-45, -45), end=(45, 45))

Constant latitude cross-section

>>> uxda.cross_section(lat=45)

Constant longitude cross-section

>>> uxda.cross_section(lon=0)

Constant longitude cross-section with custom number of steps

>>> uxda.cross_section(lon=0, steps=200)
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