https://zoophilia.wiki/index.php?action=history&feed=atom&title=Module%3AOrdnance_Survey_coordinates%2Fdata 2026-06-16T17:26:50Z Revision history for this page on the wiki MediaWiki 1.45.3 https://zoophilia.wiki/index.php?title=Module:Ordnance_Survey_coordinates/data&diff=134101&oldid=prev 2026-01-01T00:25:24Z

<p>Import needed module from English Wikipedia</p> <p><b>New page</b></p><div>-- Data for [[Module:Ordnance Survey coordinates]]<br /> -- You may use and redistribute this data under the terms of the GPL see http://www.gnu.org/copyleft/gpl.html<br /> <br /> local deg2rad = math.rad<br /> <br /> local OSGBglobe = {<br /> semimajor = 6377563.396,<br /> semiminor = 6356256.910,<br /> ecc = 0.006670539761597529073698869358812557054558,<br /> n1 = 0.00167322025032508731869331280635710896296,<br /> scale = 0.9996012717,<br /> e0 = 400000.0,<br /> n0 = -100000.0,<br /> lat0 = 49.0,<br /> lon0 = -2.0<br /> }<br /> <br /> local IEglobe = {<br /> semimajor = 6377340.189,<br /> semiminor = 6356034.447,<br /> ecc = 0.006670540293336110419293763349975612794125,<br /> n1 = 0.001673220384152058651484728058385228837777,<br /> scale = 1.000035,<br /> e0 = 200000.0,<br /> n0 = 250000.0,<br /> lat0 = 53.5,<br /> lon0 = -8.0<br /> }<br /> <br /> local WGSglobe = {<br /> semimajor = 6378137.0,<br /> semiminor = 6356752.3141,<br /> ecc = 0.00669438003551279089034150031998869922791<br /> }<br /> <br /> local WGS2OSGBparam = {<br /> -- Table 4, Section 6.6, Ordnance Survey document https://www.ordnancesurvey.co.uk/documents/resources/guide-coordinate-systems-great-britain.pdf<br /> semimajor_src = WGSglobe.semimajor,<br /> semiminor_src = WGSglobe.semiminor,<br /> ecc_src = WGSglobe.ecc,<br /> semimajor_dst = OSGBglobe.semimajor,<br /> semiminor_dst = OSGBglobe.semiminor,<br /> ecc_dst = OSGBglobe.ecc,<br /> tx = -446.448,<br /> ty = 125.157,<br /> tz = -542.060,<br /> s0 = 0.0000204894,<br /> rx = deg2rad(-.1502 / 3600.),<br /> ry = deg2rad(-.2470 / 3600.),<br /> rz = deg2rad(-.8421 / 3600.)<br /> }<br /> <br /> local OSGB2WGSparam = {<br /> semimajor_src = OSGBglobe.semimajor,<br /> semiminor_src = OSGBglobe.semiminor,<br /> ecc_src = OSGBglobe.ecc,<br /> semimajor_dst = WGSglobe.semimajor,<br /> semiminor_dst = WGSglobe.semiminor,<br /> ecc_dst = WGSglobe.ecc,<br /> tx = -WGS2OSGBparam.tx,<br /> ty = -WGS2OSGBparam.ty,<br /> tz = -WGS2OSGBparam.tz,<br /> s0 = -WGS2OSGBparam.s0,<br /> rx = -WGS2OSGBparam.rx,<br /> ry = -WGS2OSGBparam.ry,<br /> rz = -WGS2OSGBparam.rz<br /> }<br /> <br /> local IE2WGSparam = {<br /> semimajor_src = IEglobe.semimajor,<br /> semiminor_src = IEglobe.semiminor,<br /> ecc_src = IEglobe.ecc,<br /> semimajor_dst = WGSglobe.semimajor,<br /> semiminor_dst = WGSglobe.semiminor,<br /> ecc_dst = WGSglobe.ecc,<br /> tx = 482.53,<br /> ty = -130.596,<br /> tz = 564.557,<br /> s0 = 8.15 / 1000000.0,<br /> rx = deg2rad(-1.042 / 3600.0),<br /> ry = deg2rad(-0.214 / 3600.0),<br /> rz = deg2rad(-0.631 / 3600.0)<br /> }<br /> <br /> return {<br /> OSGBglobe = OSGBglobe,<br /> IEglobe = IEglobe,<br /> WGSglobe = WGSglobe,<br /> WGS2OSGBparam = WGS2OSGBparam,<br /> OSGB2WGSparam = OSGB2WGSparam,<br /> IE2WGSparam = IE2WGSparam<br /> }</div>

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