Resolutions

This is the Forum to discuss the use of SBuilderX (version 3.10 and above). For previous versions of SBuilder please use the "SBuilder for Flight Simulator FS2004" forum.
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kjb
Posts: 9
Joined: Thu Apr 13, 2006 6:18 am

Resolutions

Post by kjb » Wed Jul 25, 2007 3:05 am

This may be listed somewhere, but what resolution (m/pixel) do the various zoom levels equate to? I'm guessing that zoom level 15 is about 2m/pixel. Is that about right?

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Luis Sa
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Post by Luis Sa » Wed Jul 25, 2007 9:27 am

Hi

Here are the formulas used by SBuilder:

Code: Select all

        PixelsPerLatDeg = (2 ^ Zoom) * 256 / 180.0
        PixelsPerMeter = PixelsPerLatDeg / 111330.0#
        PixelsPerLonDeg = Math.Cos(LatDispCenter * PI / 180.0#) * PixelsPerLatDeg
Regards,

Luis

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