B CVvg@sTddlmZmZddlmZddlmZddlm Z ddl m Z GdddeZ dS) )byrefc_uint) prototypes) GEOSGeometry)GEOM_PTR) LinearRingcseZdZdZfddZddZddZedd Zd d Z d d Z d!ddZ ddZ ddZ ddZejZejZeddZddZddZeeeZeZeddZeZedd ZZS)"Polygoncs|s tj|ddf|dS|^}}t|}|dkr~t|dttfr~|ds\d}d}n"t|ddtr~|d}t|}||d|f|}tj|f|dS)a Initialize on an exterior ring and a sequence of holes (both instances may be either LinearRing instances, or a tuple/list that may be constructed into a LinearRing). Examples of initialization, where shell, hole1, and hole2 are valid LinearRing geometries: >>> from django.contrib.gis.geos import LinearRing, Polygon >>> shell = hole1 = hole2 = LinearRing() >>> poly = Polygon(shell, hole1, hole2) >>> poly = Polygon(shell, (hole1, hole2)) >>> # Example where a tuple parameters are used: >>> poly = Polygon(((0, 0), (0, 10), (10, 10), (0, 10), (0, 0)), ... ((4, 4), (4, 6), (6, 6), (6, 4), (4, 4))) rNr )super__init___create_polygonlen isinstancetuplelistr)selfargskwargsZext_ringZ init_holesn_holesZpolygon) __class__r C/tmp/pip-install-o3oxmrkh/Django/django/contrib/gis/geos/polygon.pyr szPolygon.__init__ccs$xtt|D]}||VqWdS)z&Iterate over each ring in the polygon.N)ranger)rir r r__iter__1szPolygon.__iter__cCs |jdS)z+Return the number of rings in this Polygon.r )num_interior_rings)rr r r__len__6szPolygon.__len__c Csn|\}}}}x:|D]2}t|ttfstd||||||||||f SqWt||f||f||f||f||ffS)z2Construct a Polygon from a bounding box (4-tuple).z,POLYGON((%s %s, %s %s, %s %s, %s %s, %s %s)))rfloatintrr)clsZbboxZx0Zy0x1y1zr r r from_bbox:s    zPolygon.from_bboxc s|s tSg}x2|D]*}t|tr0||q||qW|d}|d}|rt|fdd|D}t|}nd}t ||t |S)Nrr csg|]}|qSr )_clone).0r)rr r Xsz+Polygon._create_polygon..) capiZcreate_empty_polygonrrappend_construct_ringr$poprZcreate_polygonr) rlengthitemsZringsr&shellrZholesZ holes_paramr )rrr Es    zPolygon._create_polygoncCs$t|trt|St|jSdS)N)rrr( geom_cloneptr)rgr r rr$_s  zPolygon._cloneYParameter must be a sequence of LinearRings or objects that can initialize to LinearRingscCs<t|tr|Sy t|}|Stk r6t|YnXdS)z1Try to construct a ring from the given parameter.N)rr TypeError)rparammsgringr r rr*es zPolygon._construct_ringcCs2|j}|j}||||_|r$||_t|dS)N)r0sridr r(Z destroy_geom)rr,r-Zprev_ptrr7r r r _set_listps zPolygon._set_listcCs*|dkrt|jSt|j|dSdS)a7 Return the ring at the specified index. The first index, 0, will always return the exterior ring. Indices > 0 will return the interior ring at the given index (e.g., poly[1] and poly[2] would return the first and second interior ring, respectively). CAREFUL: Internal/External are not the same as Interior/Exterior! Return a pointer from the existing geometries for use internally by the object's methods. _get_single_external() returns a clone of the same geometry for use by external code. rr N)r(Z get_extringr0Z get_intring)rindexr r r_get_single_internalzs  zPolygon._get_single_internalcCstt|||jdS)N)r7)rr(r/r:r7)rr9r r r_get_single_externalszPolygon._get_single_externalcCs t|jS)z$Return the number of interior rings.)r(Z get_nringsr0)rr r rrszPolygon.num_interior_ringscCs|dS)z%Get the exterior ring of the Polygon.rr )rr r r _get_ext_ringszPolygon._get_ext_ringcCs ||d<dS)z%Set the exterior ring of the Polygon.rNr )rr6r r r _set_ext_ringszPolygon._set_ext_ringcstfddttDS)z,Get the tuple for each ring in this Polygon.c3s|]}|jVqdS)N)r)r%r)rr r sz Polygon.tuple..)rrr)rr )rrrsz Polygon.tuplecs0dfddtjD}ddj|fS)z.Return the KML representation of this Polygon.c3s |]}d|djVqdS)z%%sr N)kml)r%r)rr rr>szPolygon.kml..z:%s%sr)joinrrr@)rZ inner_kmlr )rrr@s z Polygon.kml)r2)__name__ __module__ __qualname__Z _minlengthr rr classmethodr#r r$r*r8r:r;rZ_set_single_rebuildZ _set_singleZ_assign_extended_slice_rebuildZ_assign_extended_slicepropertyrr<r=Z exterior_ringr.rZcoordsr@ __classcell__r r )rrr s* %      rN) ctypesrrZdjango.contrib.gis.geosrr(Z django.contrib.gis.geos.geometryrZdjango.contrib.gis.geos.libgeosrZ"django.contrib.gis.geos.linestringrrr r r rs