keepType

geetools.GeometryAccessor.keepType(type)

Only keep the geometries of the given type from a GeometryCollection.

Parameters:

type (str) – The type of geometries to keep. Can be one of: Point, LineString, LineRing Polygon.

Returns:

The geometries of the given type.

Return type:

ee.Geometry

Examples

import ee, geetools
from geetools.utils import initialize_documentation

initialize_documentation()

# generate multiple geometries of different types
point0 = ee.Geometry.Point([0,0], proj="EPSG:4326")
point1 = ee.Geometry.Point([0,1], proj="EPSG:4326")
poly0 = point0.buffer(1, proj="EPSG:4326")
poly1 = point1.buffer(1, proj="EPSG:4326").bounds(proj="EPSG:4326")
line = ee.Geometry.LineString([point1, point0], proj="EPSG:4326")
multiPoly = ee.Geometry.MultiPolygon([poly0, poly1], proj="EPSG:4326")

# create a geometry collection from them
geometryCollection = ee.Algorithms.GeometryConstructors.MultiGeometry(
    [multiPoly, poly0, poly1, point0, line],
    crs="EPSG:4326",
    geodesic=True,
    maxError=1
)

# extract only the LineString geometries from the collection
geom = geometryCollection.geetools.keepType('LineString')
geom.getInfo()

{'type': 'MultiLineString', 'coordinates': [[[0, 1], [0, 0]]]}