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Added pixel_to_degrees helper

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Chris Pham
2018-01-18 12:14:06 -08:00
parent a9bf793bfc
commit c2bb5f6d31
1 changed files with 15 additions and 3 deletions
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18
ground_station/resources/core/mapping.py
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@@ -47,9 +47,9 @@ _pixrad = _EARTHPIX / math.pi
class GMapsStitcher(object): class GMapsStitcher(object):
def __init__(self, width, height, latitude, def __init__(self, width, height,
longitude, zoom, maptype, radius_meters=None, latitude, longitude, zoom,
num_tiles=4): maptype, radius_meters=None, num_tiles=4):
self.latitude = latitude self.latitude = latitude
self.longitude = longitude self.longitude = longitude
self.width = width self.width = width
@@ -58,4 +58,16 @@ class GMapsStitcher(object):
self.maptype = maptype self.maptype = maptype
self.radius_meters = radius_meters self.radius_meters = radius_meters
def _new_image(self):
return PIL.Image.new('RGB', (self.width, self.height))
def _fast_round(self, value, precision):
return int(value * 10 ** precision) / 10. ** precision
def _pixels_to_degrees(self, pixels, zoom):
return pixels * 2 ** (21-zoom)
def _grab_tile(self, sleeptime):