Merge pull request Jimut123#23 from sourav-raj/master

Update jimutmap.py
zuberspace · Jan 17, 2023 · 7f959e2 · 7f959e2
2 parents 732fa94 + 40e0b05
commit 7f959e2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/jimutmap/jimutmap.py b/jimutmap/jimutmap.py
@@ -241,7 +241,8 @@ def ret_lat_lon(self, xTile:int, yTile:int) -> Tuple[float, float]:
         """
         n = 2**self.zoom
         lon_deg = int(xTile)/n * 360.0 - 180.0
-        lat_rad = math.atan(math.asinh(math.pi * (1 - 2 * int(yTile)/n)))
+#         lat_rad = math.atan(math.asinh(math.pi * (1 - 2 * int(yTile)/n)))
+        lat_rad=2*((math.pi/4)-math.atan(math.exp(-1*math.pi*(1-2* int(yTile)/n))))
         lat_deg = lat_rad * 180.0 / math.pi
         return lat_deg, lon_deg