I have a third-party application with a city map of size 131072x131072
.
There are data on this map which contains x and y coordinates. I want to transform these coordinates to latitude and longitude. I know this map is some sort of Mercator projection but I don't know what exactly.
There is the distance coefficient:
k=0.75990358305
I've tried formulas from wiki (https://en.wikipedia.org/wiki/Mercator_projection) but with no success.
Can someone help to find out transformation formula?
Here are few coordinates which I know:
(lat,lng) - (x,y)
(50.370186,30.458433) - (53655,86502)
(50.404793,30.613958) - (68149,81437)
(50.458076,30.604239) - (67240,73634)
(50.488285,30.526358) - (59988,69221)
(50.9333,29.903046) - (1920,3775)
(50.114937,31.281656) - (130375,123690)
(0, 0)
-(131072, 131072)
– Slava Oct 11 '18 at 22:22(0, 0) - (50.958968564,29.881995201)
,(131072, 131072) - (50.092603202,31.242498527)
– Slava Oct 12 '18 at 10:35