@@ -145,7 +145,7 @@ def __init__(self,
145145self ._uniform_offsets = None
146146self ._offsets = np .array ([[0 ,0 ]],float )
147147if offsets is not None :
148- offsets = np .asanyarray (offsets ). reshape (( - 1 , 2 ) )
148+ offsets = np .asanyarray (offsets , float )
149149if transOffset is not None :
150150self ._offsets = offsets
151151self ._transOffset = transOffset
@@ -210,7 +210,6 @@ def get_datalim(self, transData):
210210offsets = transOffset .transform_non_affine (offsets )
211211transOffset = transOffset .get_affine ()
212212
213- offsets = np .asanyarray (offsets ,float ).reshape ((- 1 ,2 ))
214213if isinstance (offsets ,np .ma .MaskedArray ):
215214offsets = offsets .filled (np .nan )
216215# get_path_collection_extents handles nan but not masked arrays
@@ -244,14 +243,12 @@ def _prepare_points(self):
244243xs ,ys = vertices [:,0 ],vertices [:,1 ]
245244xs = self .convert_xunits (xs )
246245ys = self .convert_yunits (ys )
247- paths .append (mpath .Path (list ( zip ( xs ,ys ) ),path .codes ))
246+ paths .append (mpath .Path (np . column_stack ([ xs ,ys ] ),path .codes ))
248247
249248if offsets .size > 0 :
250249xs = self .convert_xunits (offsets [:,0 ])
251250ys = self .convert_yunits (offsets [:,1 ])
252- offsets = list (zip (xs ,ys ))
253-
254- offsets = np .asanyarray (offsets ,float ).reshape ((- 1 ,2 ))
251+ offsets = np .column_stack ([xs ,ys ])
255252
256253if not transform .is_affine :
257254paths = [transform .transform_path_non_affine (path )
@@ -431,7 +428,7 @@ def set_offsets(self, offsets):
431428
432429 ACCEPTS: float or sequence of floats
433430 """
434- offsets = np .asanyarray (offsets ,float ). reshape (( - 1 , 2 ))
431+ offsets = np .asanyarray (offsets ,float )
435432#This decision is based on how they are initialized above
436433if self ._uniform_offsets is None :
437434self ._offsets = offsets
@@ -1881,17 +1878,12 @@ def draw(self, renderer):
18811878if len (self ._offsets ):
18821879xs = self .convert_xunits (self ._offsets [:,0 ])
18831880ys = self .convert_yunits (self ._offsets [:,1 ])
1884- offsets = list (zip (xs ,ys ))
1885-
1886- offsets = np .asarray (offsets ,float ).reshape ((- 1 ,2 ))
1881+ offsets = np .column_stack ([xs ,ys ])
18871882
18881883self .update_scalarmappable ()
18891884
18901885if not transform .is_affine :
1891- coordinates = self ._coordinates .reshape (
1892- (self ._coordinates .shape [0 ]*
1893- self ._coordinates .shape [1 ],
1894- 2 ))
1886+ coordinates = self ._coordinates .reshape ((- 1 ,2 ))
18951887coordinates = transform .transform (coordinates )
18961888coordinates = coordinates .reshape (self ._coordinates .shape )
18971889transform = transforms .IdentityTransform ()