[OpenLayers-Users] Formula for calculating resolution?

[Linda Rawson]

I have a legacy mapping system that I am trying to convert to openlayers.
MG.  It is bad.

Anyway, I have the following dimensions of a 600 X 600 window.

var bounds = new OpenLayers.Bounds(-122.1655, 42.9507, -122.1077, 43.008);

I need the four lat/lon corners to be exactly these numbers at a certain
zoom level.  What would I set as the resolution in the resolution array to
get this?

My resolution array is the following:

var layerResolutions = [0.703125,0.17578125,0.0439453125,0.0054931640625,
0.0006866455078125,0.000171661376953125,0.0000858306884765625,
0.00004291534423828125,0.000021457672119140625,0.000010728836059570312];

Thanks in advance,

Linda Rawson
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