a 1$e @sZddlmZddlZddlmZddlmZmZddlm Z d ddZ dd Z d d Z dS) )warnN) MultiPoint) from_shapelypoints_from_xy) GeoSeriescCsptjj|d}|dus|jr"tS|jdvr:t|||dS|jdvrRt|||dStd|jdt dd tS) a Sample uniformly at random from a geometry. For polygons, this samples uniformly within the area of the polygon. For lines, this samples uniformly along the length of the linestring. For multi-part geometries, the weights of each part are selected according to their relevant attribute (area for Polygons, length for LineStrings), and then points are sampled from each part uniformly. Any other geometry type (e.g. Point, GeometryCollection) are ignored, and an empty MultiPoint geometry is returned. Parameters ---------- geom : any shapely.geometry.BaseGeometry type the shape that describes the area in which to sample. size : integer an integer denoting how many points to sample Returns ------- shapely.MultiPoint geometry containing the sampled points Examples -------- >>> from shapely.geometry import box >>> square = box(0,0,1,1) >>> uniform(square, size=102) # doctest: +SKIP )seedN)ZPolygonZ MultiPolygon)size generator)Z LineStringZMultiLineStringzSampling is not supported for z geometry type.) stacklevel) numpyrandomZ default_rngZis_emptyrZ geom_type_uniform_polygon _uniform_liner UserWarning)geomrrngr rS/var/www/html/django/DPS/env/lib/python3.9/site-packages/geopandas/tools/_random.pyuniform s    rcCs"|j|d}t|j|ddS)z8 Sample points from an input shapely linestring rT) normalized)rr interpolate unary_union)rrr Zfracsrrrr=s rc Cst|j\}}}}g}t||krbt|j|||d|j|||dd}||jj|dd} || qt|d|jS)zH Sample uniformly from within a polygon using batched sampling. r)xycontains) predicateN) ZboundslenrrZsindexqueryextendrr) rrr ZxminZyminZxmaxZymax candidatesbatchZ valid_samplesrrrrFs  r)N) warningsrr Zshapely.geometryrZgeopandas.arrayrrZgeopandas.geoseriesrrrrrrrrs    3