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empty_array

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This commit is contained in:
Laura Klünder 2017-10-24 13:12:17 +02:00
parent 130a13a4f8
commit aa31a4e192
1 changed files with 3 additions and 2 deletions
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5
src/c3nav/mapdata/cache.py
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@ -26,8 +26,9 @@ class MapHistory:
# 4 bytes (uint32): timestamp
# width*height*2 bytes:
# data array (line after line) with uint16 cells
empty_array = np.empty((0, 0), dtype=np.uint16)
def __init__(self, resolution=settings.CACHE_RESOLUTION, x=0, y=0, updates=None, data=np.empty((0, 0))):
def __init__(self, resolution=settings.CACHE_RESOLUTION, x=0, y=0, updates=None, data=empty_array):
self.resolution = resolution
self.x = x
self.y = y
@ -112,7 +113,7 @@ class MapHistory:
# remove borders
rows = self.data.any(axis=1).nonzero()[0]
if not rows.size:
self.data = np.empty((0, 0))
self.data = self.empty_array
self.x = 0
self.y = 0
return