86 lines
2.9 KiB
JavaScript
86 lines
2.9 KiB
JavaScript
'use strict';
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var util = require('util');
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var path = require('path');
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module.exports = {
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Location: class {
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constructor (lon, lat) {
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this.lon = lon;
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this.lat = lat;
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}
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},
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osmData: class {
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constructor (scope) {
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this.scope = scope;
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this.str = null;
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this.hash = null;
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this.fingerprintOSM = null;
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this.osmFile = null;
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this.extractedFile = null;
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this.contractedFile = null;
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}
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populate (callback) {
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this.scope.OSMDB.toXML((str) => {
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this.str = str;
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this.hash = this.scope.hashString(str);
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this.fingerprintOSM = this.scope.hashString(this.hash);
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this.osmFile = path.resolve(this.scope.DATA_FOLDER, this.fingerprintOSM);
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this.extractedFile = path.resolve([this.osmFile, this.scope.fingerprintExtract].join('_'));
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this.contractedFile = path.resolve([this.osmFile, this.scope.fingerprintExtract, this.scope.fingerprintContract].join('_'));
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callback();
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});
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}
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reset () {
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this.str = null;
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this.hash = null;
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this.fingerprintOSM = null;
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this.osmFile = null;
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this.extractedFile = null;
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this.contractedFile = null;
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}
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},
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FuzzyMatch: class {
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match (got, want) {
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var matchPercent = want.match(/(.*)\s+~(.+)%$/),
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matchAbs = want.match(/(.*)\s+\+\-(.+)$/),
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matchRe = want.match(/^\/(.*)\/$/);
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if (got === want) {
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return true;
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} else if (matchPercent) { // percentage range: 100 ~ 5%
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var target = parseFloat(matchPercent[1]),
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percentage = parseFloat(matchPercent[2]);
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if (target === 0) {
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return true;
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} else {
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var ratio = Math.abs(1 - parseFloat(got) / target);
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return 100 * ratio < percentage;
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}
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} else if (matchAbs) { // absolute range: 100 +-5
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var margin = parseFloat(matchAbs[2]),
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fromR = parseFloat(matchAbs[1]) - margin,
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toR = parseFloat(matchAbs[1]) + margin;
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return parseFloat(got) >= fromR && parseFloat(got) <= toR;
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} else if (matchRe) { // regex: /a,b,.*/
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return got.match(matchRe[1]);
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} else {
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return false;
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}
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}
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matchLocation (got, want) {
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return this.match(got[0], util.format('%d ~0.0025%', want.lat)) &&
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this.match(got[1], util.format('%d ~0.0025%', want.lon));
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}
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}
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};
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