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Diffstat (limited to 'lib/python2.7/site-packages/django/contrib/gis/geos/coordseq.py')
| -rw-r--r-- | lib/python2.7/site-packages/django/contrib/gis/geos/coordseq.py | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/lib/python2.7/site-packages/django/contrib/gis/geos/coordseq.py b/lib/python2.7/site-packages/django/contrib/gis/geos/coordseq.py deleted file mode 100644 index acf34f7..0000000 --- a/lib/python2.7/site-packages/django/contrib/gis/geos/coordseq.py +++ /dev/null @@ -1,157 +0,0 @@ -""" - This module houses the GEOSCoordSeq object, which is used internally - by GEOSGeometry to house the actual coordinates of the Point, - LineString, and LinearRing geometries. -""" -from ctypes import c_double, c_uint, byref -from django.contrib.gis.geos.base import GEOSBase, numpy -from django.contrib.gis.geos.error import GEOSException, GEOSIndexError -from django.contrib.gis.geos.libgeos import CS_PTR -from django.contrib.gis.geos import prototypes as capi -from django.utils.six.moves import xrange - -class GEOSCoordSeq(GEOSBase): - "The internal representation of a list of coordinates inside a Geometry." - - ptr_type = CS_PTR - - #### Python 'magic' routines #### - def __init__(self, ptr, z=False): - "Initializes from a GEOS pointer." - if not isinstance(ptr, CS_PTR): - raise TypeError('Coordinate sequence should initialize with a CS_PTR.') - self._ptr = ptr - self._z = z - - def __iter__(self): - "Iterates over each point in the coordinate sequence." - for i in xrange(self.size): - yield self[i] - - def __len__(self): - "Returns the number of points in the coordinate sequence." - return int(self.size) - - def __str__(self): - "Returns the string representation of the coordinate sequence." - return str(self.tuple) - - def __getitem__(self, index): - "Returns the coordinate sequence value at the given index." - coords = [self.getX(index), self.getY(index)] - if self.dims == 3 and self._z: - coords.append(self.getZ(index)) - return tuple(coords) - - def __setitem__(self, index, value): - "Sets the coordinate sequence value at the given index." - # Checking the input value - if isinstance(value, (list, tuple)): - pass - elif numpy and isinstance(value, numpy.ndarray): - pass - else: - raise TypeError('Must set coordinate with a sequence (list, tuple, or numpy array).') - # Checking the dims of the input - if self.dims == 3 and self._z: - n_args = 3 - set_3d = True - else: - n_args = 2 - set_3d = False - if len(value) != n_args: - raise TypeError('Dimension of value does not match.') - # Setting the X, Y, Z - self.setX(index, value[0]) - self.setY(index, value[1]) - if set_3d: self.setZ(index, value[2]) - - #### Internal Routines #### - def _checkindex(self, index): - "Checks the given index." - sz = self.size - if (sz < 1) or (index < 0) or (index >= sz): - raise GEOSIndexError('invalid GEOS Geometry index: %s' % str(index)) - - def _checkdim(self, dim): - "Checks the given dimension." - if dim < 0 or dim > 2: - raise GEOSException('invalid ordinate dimension "%d"' % dim) - - #### Ordinate getting and setting routines #### - def getOrdinate(self, dimension, index): - "Returns the value for the given dimension and index." - self._checkindex(index) - self._checkdim(dimension) - return capi.cs_getordinate(self.ptr, index, dimension, byref(c_double())) - - def setOrdinate(self, dimension, index, value): - "Sets the value for the given dimension and index." - self._checkindex(index) - self._checkdim(dimension) - capi.cs_setordinate(self.ptr, index, dimension, value) - - def getX(self, index): - "Get the X value at the index." - return self.getOrdinate(0, index) - - def setX(self, index, value): - "Set X with the value at the given index." - self.setOrdinate(0, index, value) - - def getY(self, index): - "Get the Y value at the given index." - return self.getOrdinate(1, index) - - def setY(self, index, value): - "Set Y with the value at the given index." - self.setOrdinate(1, index, value) - - def getZ(self, index): - "Get Z with the value at the given index." - return self.getOrdinate(2, index) - - def setZ(self, index, value): - "Set Z with the value at the given index." - self.setOrdinate(2, index, value) - - ### Dimensions ### - @property - def size(self): - "Returns the size of this coordinate sequence." - return capi.cs_getsize(self.ptr, byref(c_uint())) - - @property - def dims(self): - "Returns the dimensions of this coordinate sequence." - return capi.cs_getdims(self.ptr, byref(c_uint())) - - @property - def hasz(self): - """ - Returns whether this coordinate sequence is 3D. This property value is - inherited from the parent Geometry. - """ - return self._z - - ### Other Methods ### - def clone(self): - "Clones this coordinate sequence." - return GEOSCoordSeq(capi.cs_clone(self.ptr), self.hasz) - - @property - def kml(self): - "Returns the KML representation for the coordinates." - # Getting the substitution string depending on whether the coordinates have - # a Z dimension. - if self.hasz: substr = '%s,%s,%s ' - else: substr = '%s,%s,0 ' - return '<coordinates>%s</coordinates>' % \ - ''.join([substr % self[i] for i in xrange(len(self))]).strip() - - @property - def tuple(self): - "Returns a tuple version of this coordinate sequence." - n = self.size - if n == 1: return self[0] - else: return tuple([self[i] for i in xrange(n)]) |