swn.SurfaceWaterNetwork.from_lines#

classmethod SurfaceWaterNetwork.from_lines(lines, polygons=None)#

Create and evaluate a new SurfaceWaterNetwork from lines for segments.

Parameters:

linesgeopandas.GeoSeries: Input lines of surface water network. Geometries must be LINESTRING or LINESTRING Z. Index is used for segment numbers. The geometry is copied to the segments property.
polygonsgeopandas.GeoSeries, optional: Optional input polygons of surface water catchments. Geometries must be POLYGON. Index must be the same as segments.index.

Examples

>>> import geopandas
>>> import swn
>>> lines = geopandas.GeoSeries.from_wkt([
...    "LINESTRING (60 100, 60  80)",
...    "LINESTRING (40 130, 60 100)",
...    "LINESTRING (70 130, 60 100)"])
>>> lines.index += 100
>>> n = swn.SurfaceWaterNetwork.from_lines(lines)
>>> n
<SurfaceWaterNetwork:
  3 segments: [100, 101, 102]
  2 headwater: [101, 102]
  1 outlets: [100]
  no diversions />