How to calculate distance per pixel in google static maps

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Hi All
My application is getting a maps images from "Google static maps" using a center point location"Lat,Lon" , image size 600*600 and specified zoom
Now to work on maps i need to know the distance per pixel in it
i think it should be calculate by zoom, image size and center location but i don't know the way to do that

My application is windows form

Posted 9-Dec-14 20:38pm

M. Daban

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M. Daban · Accepted Answer · 2014-12-22T21:26:00

I calculate it by using the center point

C#

double earthC = 6371000 * 2 * Math.PI;
double factor = Math.Pow(2, 8 + m_intZoomLevel);
double MeterPerPixel = (Math.Cos(CenterLat * Math.PI / 180) * earthC / factor)/2;
double MapWidthDistance = OrginalImageWidth * MeterPerPixel;
double ActualMeterPerPixel = MapWidthDistance / imgWidthAfterResize;

How to calculate distance per pixel in google static maps

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How to calculate distance per pixel in google static maps

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