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/*jslint |
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nomen: false, |
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indent: 4 |
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*/ |
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/*global |
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GeographicLib, google |
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*/ |
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var Coordinates = {}; |
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Coordinates.m_format = "DM"; |
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Coordinates.m_geod = GeographicLib.Geodesic.WGS84; |
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Coordinates.setFormat = function (format) { |
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'use strict'; |
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if (format === "DM" || format === "DMS" || format === "D") { |
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this.m_format = format; |
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} |
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}; |
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Coordinates.validLat = function (lat) { |
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'use strict'; |
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return lat !== null && lat !== undefined && !isNaN(lat) && -90.0 <= lat && lat <= 90.0; |
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}; |
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Coordinates.validLng = function (lng) { |
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'use strict'; |
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return lng !== null && lng !== undefined && !isNaN(lng) && -180.0 <= lng && lng <= 180.0; |
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}; |
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Coordinates.valid = function (lat, lng) { |
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'use strict'; |
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return this.validLat(lat) && this.validLng(lng); |
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}; |
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Coordinates.toLatLng = function (lat, lng) { |
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'use strict'; |
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if (this.valid(lat, lng)) { |
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return new google.maps.LatLng(lat, lng); |
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} |
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return null; |
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}; |
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Coordinates.fromStringXXX = function (coordsString) { |
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'use strict'; |
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var coords; |
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coords = this.fromStringDM(coordsString); |
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if (coords) { |
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return coords; |
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} |
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coords = this.fromStringDMS(coordsString); |
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if (coords) { |
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return coords; |
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} |
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coords = this.fromStringD(coordsString); |
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if (coords) { |
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return coords; |
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} |
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return null; |
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}; |
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Coordinates.sanitize = function (s) { |
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'use strict'; |
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var sanitized = "", |
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commas = 0, |
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periods = 0, |
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i; |
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for (i = 0; i < s.length; i = i + 1) { |
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if ((s[i] === 'o') || (s[i] === 'O')) { |
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// map 'O'/'o' to 'E' (German 'Ost' = 'East') |
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sanitized += 'E'; |
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} else if (s[i].match(/[a-z0-9\-]/i)) { |
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sanitized += s[i].toUpperCase(); |
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} else if (s[i] === '.') { |
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periods += 1; |
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sanitized += s[i]; |
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} else if (s[i] === ',') { |
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commas += 1; |
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sanitized += s[i]; |
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} else { |
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sanitized += ' '; |
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} |
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} |
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// try to map commas to spaces or periods |
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if ((commas === 1) && ((periods === 0) || (periods >= 2))) { |
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return sanitized.replace(/,/g, ' '); |
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} |
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if ((commas >= 1) && (periods === 0)) { |
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return sanitized.replace(/,/g, '.'); |
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} |
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return sanitized; |
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}; |
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Coordinates.create = function (h1, d1, m1, s1, h2, d2, m2, s2) { |
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'use strict'; |
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var c1, c2, lat, lng; |
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if (h1 !== '+' && d1 < 0) { |
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return null; |
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} |
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if (m1 < 0 || m1 >= 60) { |
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return null; |
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} |
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if (s1 < 0 || s1 >= 60) { |
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return null; |
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} |
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if (h2 !== '+' && d2 < 0) { |
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return null; |
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} |
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if (m2 < 0 || m2 >= 60) { |
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return null; |
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} |
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if (s2 < 0 || s2 >= 60) { |
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return null; |
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} |
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c1 = d1 + (m1 / 60.0) + (s1 / 3600.0); |
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c2 = d2 + (m2 / 60.0) + (s2 / 3600.0); |
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if (h1 === '+' && h2 === '+') { |
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lat = c1; |
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lng = c2; |
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} else if ((h1 === 'N' || h1 === 'S') && (h2 === 'E' || h2 === 'W')) { |
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lat = c1; |
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lng = c2; |
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if (h1 === 'S') { |
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lat = -lat; |
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} |
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if (h2 === 'W') { |
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lng = -lng; |
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} |
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} else if ((h2 === 'N' || h2 === 'S') && (h1 === 'E' || h1 === 'W')) { |
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lat = c2; |
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lng = c1; |
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if (h2 === 'S') { |
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lat = -lat; |
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} |
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if (h1 === 'W') { |
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lng = -lng; |
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} |
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} else { |
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return null; |
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} |
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return Coordinates.toLatLng(lat, lng); |
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}; |
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Coordinates.fromString = function (coordsString) { |
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'use strict'; |
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var s = Coordinates.sanitize(coordsString), |
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i, |
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p, |
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m, |
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c, |
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patterns = [ |
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// DM / H D M |
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[/^\s*([NEWS])\s*(\d+)\s+(\d+\.?\d*)\s*([NEWS])\s*(\d+)\s+(\d+\.?\d*)\s*$/, 1, 2, 3, 0, 4, 5, 6, 0], |
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// DM / D H M |
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[/^\s*(\d+)\s*([NEWS])\s*(\d+\.?\d*)\s+(\d+)\s*([NEWS])\s*(\d+\.?\d*)\s*$/, 2, 1, 3, 0, 5, 4, 6, 0], |
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// DM / D M H |
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[/^\s*(\d+)\s+(\d+\.?\d*)\s*([NEWS])\s*(\d+)\s+(\d+\.?\d*)\s*([NEWS])\s*$/, 3, 1, 2, 0, 6, 4, 5, 0], |
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// DM / D M |
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[/^\s*(\d+)\s+(\d+\.?\d*)\s+(\d+)\s+(\d+\.?\d*)\s*$/, 'N', 1, 2, 0, 'E', 3, 4, 0], |
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// DMS / H D M S |
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[/^\s*([NEWS])\s*(\d+)\s+(\d+)\s+(\d+\.?\d*)\s*([NEWS])\s*(\d+)\s+(\d+)\s+(\d+\.?\d*)\s*$/, 1, 2, 3, 4, 5, 6, 7, 8], |
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// DMS / D H M S |
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[/^\s*(\d+)\s*([NEWS])\s*(\d+)\s+(\d+\.?\d*)\s+(\d+)\s*([NEWS])\s*(\d+)\s+(\d+\.?\d*)\s*$/, 2, 1, 3, 4, 6, 5, 7, 8], |
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// DMS / D M S H |
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[/^\s*(\d+)\s+(\d+)\s+(\d+\.?\d*)\s*([NEWS])\s*(\d+)\s+(\d+)\s+(\d+\.?\d*)\s*([NEWS])\s*$/, 4, 1, 2, 3, 6, 5, 6, 7], |
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// DMS / D M S |
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[/^\s*(\d+)\s+(\d+)\s+(\d+\.?\d*)\s+(\d+)\s+(\d+)\s+(\d+\.?\d*)\s*$/, 'N', 1, 2, 3, 'E', 4, 5, 6], |
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// D / H D |
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[/^\s*([NEWS])\s*(\d+\.?\d*)\s*([NEWS])\s*(\d+\.?\d*)\s*$/, 1, 2, 0, 0, 3, 4, 0, 0], |
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// D / D H |
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[/^\s*(\d+\.?\d*)\s*([NEWS])\s*(\d+\.?\d*)\s*([NEWS])\s*$/, 2, 1, 0, 0, 4, 3, 0, 0], |
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// D / D |
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[/^\s*(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s*$/, '+', 1, 0, 0, '+', 2, 0, 0] |
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]; |
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function mm(match, index) { |
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var mi; |
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if (typeof(index) === 'number') { |
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if (index > 0) { |
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mi = match[index]; |
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if (mi === '+' || mi === 'N' || mi === 'E' || mi === 'W' || mi === 'S') { |
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return mi; |
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} |
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return parseFloat(mi); |
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} |
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} |
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return index; |
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} |
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for (i = 0; i < patterns.length; i = i + 1) { |
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p = patterns[i]; |
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m = s.match(p[0]); |
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if (m) { |
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c = Coordinates.create( |
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mm(m, p[1]), |
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mm(m, p[2]), |
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mm(m, p[3]), |
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mm(m, p[4]), |
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mm(m, p[5]), |
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mm(m, p[6]), |
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mm(m, p[7]), |
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mm(m, p[8]) |
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); |
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if (c) { |
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return c; |
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} |
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} |
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} |
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return null; |
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}; |
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Coordinates.toStringDM = function (coords) { |
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'use strict'; |
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var lat = Math.abs(coords.lat()), |
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lat_h = ((coords.lat() >= 0) ? "N" : "S"), |
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lat_deg, |
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lat_min, |
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lat_mmin, |
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lng = Math.abs(coords.lng()), |
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lng_h = ((coords.lng() >= 0) ? "E" : "W"), |
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lng_deg, |
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lng_min, |
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lng_mmin, |
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s; |
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lat_deg = Math.floor(lat); |
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lat = lat - lat_deg; |
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lat_min = Math.floor(lat * 60); |
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lat = lat * 60 - lat_min; |
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lat_mmin = Math.floor(Math.round(lat * 1000)); |
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while (lat_mmin >= 1000) { |
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lat_mmin -= 1000; |
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lat_min += 1; |
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} |
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lng_deg = Math.floor(lng); |
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lng = lng - lng_deg; |
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lng_min = Math.floor(lng * 60); |
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lng = lng * 60 - lng_min; |
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lng_mmin = Math.floor(Math.round(lng * 1000)); |
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while (lng_mmin >= 1000) { |
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lng_mmin -= 1000; |
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lng_min += 1; |
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} |
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s = lat_h + |
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" " + |
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this.zeropad(lat_deg, 2) + |
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" " + |
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this.zeropad(lat_min, 2) + |
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"." + |
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this.zeropad(lat_mmin, 3) + |
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" " + |
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lng_h + |
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" " + |
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this.zeropad(lng_deg, 3) + |
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" " + |
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this.zeropad(lng_min, 2) + |
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"." + |
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this.zeropad(lng_mmin, 3); |
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return s; |
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}; |
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298
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299
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Coordinates.toStringDMS = function (coords) { |
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'use strict'; |
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302
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var lat = Math.abs(coords.lat()), |
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lat_h = ((coords.lat() >= 0) ? "N" : "S"), |
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lat_deg, |
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lat_min, |
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lat_sec, |
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lng = Math.abs(coords.lng()), |
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lng_h = ((coords.lng() >= 0) ? "E" : "W"), |
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lng_deg, |
|
310
|
|
|
lng_min, |
|
311
|
|
|
lng_sec, |
|
312
|
|
|
s; |
|
313
|
|
|
|
|
314
|
|
|
lat_deg = Math.floor(lat); |
|
315
|
|
|
lat = lat - lat_deg; |
|
316
|
|
|
lat_min = Math.floor(lat * 60); |
|
317
|
|
|
lat = lat * 60 - lat_min; |
|
318
|
|
|
lat_sec = lat * 60.0; |
|
319
|
|
|
|
|
320
|
|
|
lng_deg = Math.floor(lng); |
|
321
|
|
|
lng = lng - lng_deg; |
|
322
|
|
|
lng_min = Math.floor(lng * 60); |
|
323
|
|
|
lng = lng * 60 - lng_min; |
|
324
|
|
|
lng_sec = lng * 60.0; |
|
325
|
|
|
|
|
326
|
|
|
s = lat_h + |
|
327
|
|
|
" " + |
|
328
|
|
|
this.zeropad(lat_deg, 2) + |
|
329
|
|
|
" " + |
|
330
|
|
|
this.zeropad(lat_min, 2) + |
|
331
|
|
|
" " + |
|
332
|
|
|
this.zeropad(lat_sec.toFixed(2), 5) + |
|
333
|
|
|
" " + |
|
334
|
|
|
lng_h + |
|
335
|
|
|
" " + |
|
336
|
|
|
this.zeropad(lng_deg, 3) + |
|
337
|
|
|
" " + |
|
338
|
|
|
this.zeropad(lng_min, 2) + |
|
339
|
|
|
" " + |
|
340
|
|
|
this.zeropad(lng_sec.toFixed(2), 5); |
|
341
|
|
|
|
|
342
|
|
|
return s; |
|
343
|
|
|
}; |
|
344
|
|
|
|
|
345
|
|
|
|
|
346
|
|
|
Coordinates.toStringD = function (coords) { |
|
347
|
|
|
'use strict'; |
|
348
|
|
|
|
|
349
|
|
|
var lat = Math.abs(coords.lat()), |
|
350
|
|
|
lat_h = ((coords.lat() >= 0) ? "N" : "S"), |
|
351
|
|
|
lng = Math.abs(coords.lng()), |
|
352
|
|
|
lng_h = ((coords.lng() >= 0) ? "E" : "W"); |
|
353
|
|
|
|
|
354
|
|
|
return lat_h + " " + lat.toFixed(6) + " " + lng_h + " " + lng.toFixed(6); |
|
355
|
|
|
}; |
|
356
|
|
|
|
|
357
|
|
|
|
|
358
|
|
|
Coordinates.toString = function (coords) { |
|
359
|
|
|
'use strict'; |
|
360
|
|
|
|
|
361
|
|
|
if (this.m_format === "DM") { |
|
362
|
|
|
return this.toStringDM(coords); |
|
363
|
|
|
} |
|
364
|
|
|
|
|
365
|
|
|
if (this.m_format === "DMS") { |
|
366
|
|
|
return this.toStringDMS(coords); |
|
367
|
|
|
} |
|
368
|
|
|
|
|
369
|
|
|
if (this.m_format === "D") { |
|
370
|
|
|
return this.toStringD(coords); |
|
371
|
|
|
} |
|
372
|
|
|
|
|
373
|
|
|
return this.toStringDM(coords); |
|
374
|
|
|
}; |
|
375
|
|
|
|
|
376
|
|
|
|
|
377
|
|
|
Coordinates.dist_angle_geodesic = function (startpos, endpos) { |
|
378
|
|
|
'use strict'; |
|
379
|
|
|
|
|
380
|
|
|
var t = this.m_geod.Inverse(startpos.lat(), startpos.lng(), endpos.lat(), endpos.lng()), |
|
381
|
|
|
a = t.azi1; |
|
382
|
|
|
if (a < 0) { |
|
383
|
|
|
a += 360.0; |
|
384
|
|
|
} |
|
385
|
|
|
|
|
386
|
|
|
return {dist: t.s12, angle: a}; |
|
387
|
|
|
}; |
|
388
|
|
|
|
|
389
|
|
|
|
|
390
|
|
|
Coordinates.projection_geodesic = function (startpos, angle, distance) { |
|
391
|
|
|
'use strict'; |
|
392
|
|
|
|
|
393
|
|
|
var t = this.m_geod.Direct(startpos.lat(), startpos.lng(), angle, distance); |
|
394
|
|
|
return new google.maps.LatLng(t.lat2, t.lon2); |
|
395
|
|
|
}; |
|
396
|
|
|
|
|
397
|
|
|
|
|
398
|
|
|
Coordinates.zeropad = function (num, width) { |
|
399
|
|
|
'use strict'; |
|
400
|
|
|
|
|
401
|
|
|
var s = String(num); |
|
402
|
|
|
while (s.length < width) { |
|
403
|
|
|
s = "0" + s; |
|
404
|
|
|
} |
|
405
|
|
|
return s; |
|
406
|
|
|
}; |
|
407
|
|
|
|
flopp /
FloppsMap
