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| goog.provide('ol.format.IGC');
goog.require('ol');
goog.require('ol.Feature');
goog.require('ol.format.Feature');
goog.require('ol.format.IGCZ');
goog.require('ol.format.TextFeature');
goog.require('ol.geom.GeometryLayout');
goog.require('ol.geom.LineString');
goog.require('ol.proj');
/**
* @classdesc
* Feature format for `*.igc` flight recording files.
*
* @constructor
* @extends {ol.format.TextFeature}
* @param {olx.format.IGCOptions=} opt_options Options.
* @api
*/
ol.format.IGC = function(opt_options) {
var options = opt_options ? opt_options : {};
ol.format.TextFeature.call(this);
/**
* @inheritDoc
*/
this.defaultDataProjection = ol.proj.get('EPSG:4326');
/**
* @private
* @type {ol.format.IGCZ}
*/
this.altitudeMode_ = options.altitudeMode ?
options.altitudeMode : ol.format.IGCZ.NONE;
};
ol.inherits(ol.format.IGC, ol.format.TextFeature);
/**
* @const
* @type {RegExp}
* @private
*/
ol.format.IGC.B_RECORD_RE_ =
/^B(\d{2})(\d{2})(\d{2})(\d{2})(\d{5})([NS])(\d{3})(\d{5})([EW])([AV])(\d{5})(\d{5})/;
/**
* @const
* @type {RegExp}
* @private
*/
ol.format.IGC.H_RECORD_RE_ = /^H.([A-Z]{3}).*?:(.*)/;
/**
* @const
* @type {RegExp}
* @private
*/
ol.format.IGC.HFDTE_RECORD_RE_ = /^HFDTE(\d{2})(\d{2})(\d{2})/;
/**
* A regular expression matching the newline characters `\r\n`, `\r` and `\n`.
*
* @const
* @type {RegExp}
* @private
*/
ol.format.IGC.NEWLINE_RE_ = /\r\n|\r|\n/;
/**
* Read the feature from the IGC source.
*
* @function
* @param {Document|Node|Object|string} source Source.
* @param {olx.format.ReadOptions=} opt_options Read options.
* @return {ol.Feature} Feature.
* @api
*/
ol.format.IGC.prototype.readFeature;
/**
* @inheritDoc
*/
ol.format.IGC.prototype.readFeatureFromText = function(text, opt_options) {
var altitudeMode = this.altitudeMode_;
var lines = text.split(ol.format.IGC.NEWLINE_RE_);
/** @type {Object.<string, string>} */
var properties = {};
var flatCoordinates = [];
var year = 2000;
var month = 0;
var day = 1;
var lastDateTime = -1;
var i, ii;
for (i = 0, ii = lines.length; i < ii; ++i) {
var line = lines[i];
var m;
if (line.charAt(0) == 'B') {
m = ol.format.IGC.B_RECORD_RE_.exec(line);
Eif (m) {
var hour = parseInt(m[1], 10);
var minute = parseInt(m[2], 10);
var second = parseInt(m[3], 10);
var y = parseInt(m[4], 10) + parseInt(m[5], 10) / 60000;
Iif (m[6] == 'S') {
y = -y;
}
var x = parseInt(m[7], 10) + parseInt(m[8], 10) / 60000;
Iif (m[9] == 'W') {
x = -x;
}
flatCoordinates.push(x, y);
Iif (altitudeMode != ol.format.IGCZ.NONE) {
var z;
if (altitudeMode == ol.format.IGCZ.GPS) {
z = parseInt(m[11], 10);
} else if (altitudeMode == ol.format.IGCZ.BAROMETRIC) {
z = parseInt(m[12], 10);
} else {
z = 0;
}
flatCoordinates.push(z);
}
var dateTime = Date.UTC(year, month, day, hour, minute, second);
// Detect UTC midnight wrap around.
if (dateTime < lastDateTime) {
dateTime = Date.UTC(year, month, day + 1, hour, minute, second);
}
flatCoordinates.push(dateTime / 1000);
lastDateTime = dateTime;
}
} else if (line.charAt(0) == 'H') {
m = ol.format.IGC.HFDTE_RECORD_RE_.exec(line);
if (m) {
day = parseInt(m[1], 10);
month = parseInt(m[2], 10) - 1;
year = 2000 + parseInt(m[3], 10);
} else {
m = ol.format.IGC.H_RECORD_RE_.exec(line);
if (m) {
properties[m[1]] = m[2].trim();
}
}
}
}
if (flatCoordinates.length === 0) {
return null;
}
var lineString = new ol.geom.LineString(null);
var layout = altitudeMode == ol.format.IGCZ.NONE ?
ol.geom.GeometryLayout.XYM : ol.geom.GeometryLayout.XYZM;
lineString.setFlatCoordinates(layout, flatCoordinates);
var feature = new ol.Feature(ol.format.Feature.transformWithOptions(
lineString, false, opt_options));
feature.setProperties(properties);
return feature;
};
/**
* Read the feature from the source. As IGC sources contain a single
* feature, this will return the feature in an array.
*
* @function
* @param {Document|Node|Object|string} source Source.
* @param {olx.format.ReadOptions=} opt_options Read options.
* @return {Array.<ol.Feature>} Features.
* @api
*/
ol.format.IGC.prototype.readFeatures;
/**
* @inheritDoc
*/
ol.format.IGC.prototype.readFeaturesFromText = function(text, opt_options) {
var feature = this.readFeatureFromText(text, opt_options);
if (feature) {
return [feature];
} else {
return [];
}
};
/**
* Read the projection from the IGC source.
*
* @function
* @param {Document|Node|Object|string} source Source.
* @return {ol.proj.Projection} Projection.
* @api
*/
ol.format.IGC.prototype.readProjection;
/**
* Not implemented.
* @inheritDoc
*/
ol.format.IGC.prototype.writeFeatureText = function(feature, opt_options) {};
/**
* Not implemented.
* @inheritDoc
*/
ol.format.IGC.prototype.writeFeaturesText = function(features, opt_options) {};
/**
* Not implemented.
* @inheritDoc
*/
ol.format.IGC.prototype.writeGeometryText = function(geometry, opt_options) {};
/**
* Not implemented.
* @inheritDoc
*/
ol.format.IGC.prototype.readGeometryFromText = function(text, opt_options) {};
|