def dumps(obj, srid=None):
"""
Dump a GeoJSON-like `dict` to a Esri JSON.
:param string:
The GeoJSON geometry representation
:param int:
The default SRID value if none is present.
"""
if 'type' in obj and \
obj['type'].lower() in _gj_to_esri.keys():
convert = _gj_to_esri[obj['type'].lower()]
return convert(obj, srid=srid)
else:
raise geomet.InvalidGeoJSONException("Invalid GeoJSON type %s" % obj)
def dumps(obj, decimals=16):
"""
Dump a GeoJSON-like `dict` to a WKT string.
"""
try:
geom_type = obj['type']
exporter = _dumps_registry.get(geom_type)
if exporter is None:
_unsupported_geom_type(geom_type)
# Check for empty cases
if geom_type == 'GeometryCollection':
if len(obj['geometries']) == 0:
return 'GEOMETRYCOLLECTION EMPTY'
else:
# Geom has no coordinate values at all, and must be empty.
if len(list(util.flatten_multi_dim(obj['coordinates']))) == 0:
return '%s EMPTY' % geom_type.upper()
except KeyError:
raise geomet.InvalidGeoJSONException('Invalid GeoJSON: %s' % obj)
result = exporter(obj, decimals)
# Try to get the SRID from `meta.srid`
meta_srid = obj.get('meta', {}).get('srid')
# Also try to get it from `crs.properties.name`:
crs_srid = obj.get('crs', {}).get('properties', {}).get('name')
if crs_srid is not None:
# Shave off the EPSG prefix to give us the SRID:
crs_srid = crs_srid.replace('EPSG', '')
if (meta_srid is not None and crs_srid is not None
and str(meta_srid) != str(crs_srid)):
raise ValueError('Ambiguous CRS/SRID values: %s and %s' %
(meta_srid, crs_srid))
srid = meta_srid or crs_srid
# TODO: add tests for CRS input
if srid is not None:
# Prepend the SRID
result = 'SRID=%s;%s' % (srid, result)
return result
def loads(string):
"""
Construct a GeoJSON `dict` from Esri JSON (string/dict).
:param string:
The Esri JSON geometry representation
:returns:
A GeoJSON `dict` representing the geometry read from the file.
"""
data = json.loads(string)
if 'rings' in data:
return _esri_to_geojson_convert['rings'](data)
elif 'paths' in data:
return _esri_to_geojson_convert['paths'](data)
elif 'x' in data or 'y' in data:
return _esri_to_geojson_convert['x'](data)
elif 'points' in data:
return _esri_to_geojson_convert['points'](data)
else:
raise geomet.InvalidGeoJSONException('Invalid EsriJSON: %s' % string)
def dumps(obj, decimals=16):
"""
Dump a GeoJSON-like `dict` to a WKT string.
"""
try:
geom_type = obj['type']
exporter = _dumps_registry.get(geom_type)
if exporter is None:
_unsupported_geom_type(geom_type)
# Check for empty cases
if geom_type == 'GeometryCollection':
if len(obj['geometries']) == 0:
return 'GEOMETRYCOLLECTION EMPTY'
else:
# Geom has no coordinate values at all, and must be empty.
if len(list(util.flatten_multi_dim(obj['coordinates']))) == 0:
return '%s EMPTY' % geom_type.upper()
except KeyError:
raise geomet.InvalidGeoJSONException('Invalid GeoJSON: %s' % obj)
fmt = '%%.%df' % decimals
return exporter(obj, fmt)