oggm.Centerline¶
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class
oggm.
Centerline
(line, dx=None, surface_h=None, orig_head=None, rgi_id=None, map_dx=None)[source]¶ Geometry (line and widths) and flow rooting properties, but no thickness
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__init__
(line, dx=None, surface_h=None, orig_head=None, rgi_id=None, map_dx=None)[source]¶ Initialize a Centerline
Parameters: - line :
shapely.geometry.LineString
The geometrically calculated centerline
- dx : float
Grid spacing of the initialised flowline in pixel coordinates
- surface_h :
numpy.ndarray
elevation [m] of the points on
line
- orig_head :
shapely.geometry.Point
geometric point of the lines head
- rgi_id : str
The glacier’s RGI identifier
- map_dx : float
the map’s grid resolution. Centerline.dx_meter = dx * map_dx
- line :
Methods
__init__
(line[, dx, surface_h, orig_head, …])Initialize a Centerline set_apparent_mb
(mb[, mu_star])Set the apparent mb and flux for the flowline. set_flows_to
(other[, check_tail, to_head])Find the closest point in “other” and sets all the corresponding attributes. set_line
(line)Update the Shapely LineString coordinate. Attributes
flows_to_indice
Indices instead of geometry inflow_indices
Indices instead of geometries normals
List of (n1, n2) normal vectors at each point. surface_h
Needed for overriding later widths
Needed for overriding later widths_m
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