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GPX.js
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GPX.js
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/**
* @module ol/format/GPX
*/
import Feature from '../Feature.js';
import LineString from '../geom/LineString.js';
import MultiLineString from '../geom/MultiLineString.js';
import Point from '../geom/Point.js';
import XMLFeature from './XMLFeature.js';
import {
OBJECT_PROPERTY_NODE_FACTORY,
XML_SCHEMA_INSTANCE_URI,
createElementNS,
isDocument,
makeArrayPusher,
makeArraySerializer,
makeChildAppender,
makeObjectPropertySetter,
makeSequence,
makeSimpleNodeFactory,
makeStructureNS,
parse,
parseNode,
pushParseAndPop,
pushSerializeAndPop,
} from '../xml.js';
import {get as getProjection} from '../proj.js';
import {
readDateTime,
readDecimal,
readPositiveInteger,
readString,
writeDateTimeTextNode,
writeDecimalTextNode,
writeNonNegativeIntegerTextNode,
writeStringTextNode,
} from './xsd.js';
import {transformGeometryWithOptions} from './Feature.js';
/**
* @const
* @type {Array<null|string>}
*/
const NAMESPACE_URIS = [
null,
'http://www.topografix.com/GPX/1/0',
'http://www.topografix.com/GPX/1/1',
];
/**
* @const
* @type {string}
*/
const SCHEMA_LOCATION =
'http://www.topografix.com/GPX/1/1 ' +
'http://www.topografix.com/GPX/1/1/gpx.xsd';
/**
* @const
* @type {Object<string, function(Node, Array<*>): (Feature|undefined)>}
*/
const FEATURE_READER = {
'rte': readRte,
'trk': readTrk,
'wpt': readWpt,
};
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const GPX_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'rte': makeArrayPusher(readRte),
'trk': makeArrayPusher(readTrk),
'wpt': makeArrayPusher(readWpt),
});
/**
* @typedef {Object} GPXLink
* @property {string} [text] text
* @property {string} [type] type
*/
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const LINK_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'text': makeObjectPropertySetter(readString, 'linkText'),
'type': makeObjectPropertySetter(readString, 'linkType'),
});
/**
* @typedef {Object} GPXAuthor
* @property {string} [name] name
* @property {string} [email] email
* @property {GPXLink} [link] link
*/
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const AUTHOR_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'name': makeObjectPropertySetter(readString),
'email': parseEmail,
'link': parseLink,
});
/**
* @typedef {Object} GPXMetadata
* @property {string} [name] name
* @property {string} [desc] desc
* @property {GPXAuthor} [author] author
* @property {GPXLink} [link] link
* @property {number} [time] time
* @property {string} [keywords] keywords
* @property {Array<number>} [bounds] bounds
* @property {Object} [extensions] extensions
*
*/
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const METADATA_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'name': makeObjectPropertySetter(readString),
'desc': makeObjectPropertySetter(readString),
'author': makeObjectPropertySetter(readAuthor),
'copyright': makeObjectPropertySetter(readCopyright),
'link': parseLink,
'time': makeObjectPropertySetter(readDateTime),
'keywords': makeObjectPropertySetter(readString),
'bounds': parseBounds,
'extensions': parseExtensions,
});
/**
* @typedef {Object} GPXCopyright
* @property {string} [author] author
* @property {number} [year] year
* @property {string} [license] license
*/
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const COPYRIGHT_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'year': makeObjectPropertySetter(readPositiveInteger),
'license': makeObjectPropertySetter(readString),
});
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Serializer>>}
*/
// @ts-ignore
const GPX_SERIALIZERS = makeStructureNS(NAMESPACE_URIS, {
'rte': makeChildAppender(writeRte),
'trk': makeChildAppender(writeTrk),
'wpt': makeChildAppender(writeWpt),
});
/**
* @typedef {Object} Options
* @property {function(Feature, Node):void} [readExtensions] Callback function
* to process `extensions` nodes. To prevent memory leaks, this callback function must
* not store any references to the node. Note that the `extensions`
* node is not allowed in GPX 1.0. Moreover, only `extensions`
* nodes from `wpt`, `rte` and `trk` can be processed, as those are
* directly mapped to a feature.
*/
/**
* @typedef {Object} LayoutOptions
* @property {boolean} [hasZ] HasZ.
* @property {boolean} [hasM] HasM.
*/
/**
* @classdesc
* Feature format for reading and writing data in the GPX format.
*
* Note that {@link module:ol/format/GPX~GPX#readFeature} only reads the first
* feature of the source.
*
* When reading, routes (`<rte>`) are converted into LineString geometries, and
* tracks (`<trk>`) into MultiLineString. Any properties on route and track
* waypoints are ignored.
*
* When writing, LineString geometries are output as routes (`<rte>`), and
* MultiLineString as tracks (`<trk>`).
*
* @api
*/
class GPX extends XMLFeature {
/**
* @param {Options} [options] Options.
*/
constructor(options) {
super();
options = options ? options : {};
/**
* @type {import("../proj/Projection.js").default}
*/
this.dataProjection = getProjection('EPSG:4326');
/**
* @type {function(Feature, Node): void|undefined}
* @private
*/
this.readExtensions_ = options.readExtensions;
}
/**
* @param {Array<Feature>} features List of features.
* @private
*/
handleReadExtensions_(features) {
if (!features) {
features = [];
}
for (let i = 0, ii = features.length; i < ii; ++i) {
const feature = features[i];
if (this.readExtensions_) {
const extensionsNode = feature.get('extensionsNode_') || null;
this.readExtensions_(feature, extensionsNode);
}
feature.set('extensionsNode_', undefined);
}
}
/**
* Reads a GPX file's metadata tag, reading among other things:
* - the name and description of this GPX
* - its author
* - the copyright associated with this GPX file
*
* Will return null if no metadata tag is present (or no valid source is given).
*
* @param {Document|Element|Object|string} source Source.
* @return {GPXMetadata | null} Metadata
* @api
*/
readMetadata(source) {
if (!source) {
return null;
}
if (typeof source === 'string') {
return this.readMetadataFromDocument(parse(source));
}
if (isDocument(source)) {
return this.readMetadataFromDocument(/** @type {Document} */ (source));
}
return this.readMetadataFromNode(source);
}
/**
* @param {Document} doc Document.
* @return {GPXMetadata | null} Metadata
*/
readMetadataFromDocument(doc) {
for (let n = /** @type {Node} */ (doc.firstChild); n; n = n.nextSibling) {
if (n.nodeType === Node.ELEMENT_NODE) {
const metadata = this.readMetadataFromNode(/** @type {Element} */ (n));
if (metadata) {
return metadata;
}
}
}
return null;
}
/**
* @param {Element} node Node.
* @return {Object} Metadata
*/
readMetadataFromNode(node) {
if (!NAMESPACE_URIS.includes(node.namespaceURI)) {
return null;
}
for (let n = node.firstElementChild; n; n = n.nextElementSibling) {
if (
NAMESPACE_URIS.includes(n.namespaceURI) &&
n.localName === 'metadata'
) {
return pushParseAndPop({}, METADATA_PARSERS, n, []);
}
}
return null;
}
/**
* @param {Element} node Node.
* @param {import("./Feature.js").ReadOptions} [options] Options.
* @return {import("../Feature.js").default} Feature.
*/
readFeatureFromNode(node, options) {
if (!NAMESPACE_URIS.includes(node.namespaceURI)) {
return null;
}
const featureReader = FEATURE_READER[node.localName];
if (!featureReader) {
return null;
}
const feature = featureReader(node, [this.getReadOptions(node, options)]);
if (!feature) {
return null;
}
this.handleReadExtensions_([feature]);
return feature;
}
/**
* @param {Element} node Node.
* @param {import("./Feature.js").ReadOptions} [options] Options.
* @return {Array<import("../Feature.js").default>} Features.
*/
readFeaturesFromNode(node, options) {
if (!NAMESPACE_URIS.includes(node.namespaceURI)) {
return [];
}
if (node.localName == 'gpx') {
/** @type {Array<Feature>} */
const features = pushParseAndPop([], GPX_PARSERS, node, [
this.getReadOptions(node, options),
]);
if (features) {
this.handleReadExtensions_(features);
return features;
}
return [];
}
return [];
}
/**
* Encode an array of features in the GPX format as an XML node.
* LineString geometries are output as routes (`<rte>`), and MultiLineString
* as tracks (`<trk>`).
*
* @param {Array<Feature>} features Features.
* @param {import("./Feature.js").WriteOptions} [options] Options.
* @return {Node} Node.
* @api
*/
writeFeaturesNode(features, options) {
options = this.adaptOptions(options);
//FIXME Serialize metadata
const gpx = createElementNS('http://www.topografix.com/GPX/1/1', 'gpx');
const xmlnsUri = 'http://www.w3.org/2000/xmlns/';
gpx.setAttributeNS(xmlnsUri, 'xmlns:xsi', XML_SCHEMA_INSTANCE_URI);
gpx.setAttributeNS(
XML_SCHEMA_INSTANCE_URI,
'xsi:schemaLocation',
SCHEMA_LOCATION,
);
gpx.setAttribute('version', '1.1');
gpx.setAttribute('creator', 'OpenLayers');
pushSerializeAndPop(
/** @type {import("../xml.js").NodeStackItem} */
({node: gpx}),
GPX_SERIALIZERS,
GPX_NODE_FACTORY,
features,
[options],
);
return gpx;
}
}
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const RTE_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'name': makeObjectPropertySetter(readString),
'cmt': makeObjectPropertySetter(readString),
'desc': makeObjectPropertySetter(readString),
'src': makeObjectPropertySetter(readString),
'link': parseLink,
'number': makeObjectPropertySetter(readPositiveInteger),
'extensions': parseExtensions,
'type': makeObjectPropertySetter(readString),
'rtept': parseRtePt,
});
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const RTEPT_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'ele': makeObjectPropertySetter(readDecimal),
'time': makeObjectPropertySetter(readDateTime),
});
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const TRK_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'name': makeObjectPropertySetter(readString),
'cmt': makeObjectPropertySetter(readString),
'desc': makeObjectPropertySetter(readString),
'src': makeObjectPropertySetter(readString),
'link': parseLink,
'number': makeObjectPropertySetter(readPositiveInteger),
'type': makeObjectPropertySetter(readString),
'extensions': parseExtensions,
'trkseg': parseTrkSeg,
});
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const TRKSEG_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'trkpt': parseTrkPt,
});
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const TRKPT_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'ele': makeObjectPropertySetter(readDecimal),
'time': makeObjectPropertySetter(readDateTime),
});
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Parser>>}
*/
// @ts-ignore
const WPT_PARSERS = makeStructureNS(NAMESPACE_URIS, {
'ele': makeObjectPropertySetter(readDecimal),
'time': makeObjectPropertySetter(readDateTime),
'magvar': makeObjectPropertySetter(readDecimal),
'geoidheight': makeObjectPropertySetter(readDecimal),
'name': makeObjectPropertySetter(readString),
'cmt': makeObjectPropertySetter(readString),
'desc': makeObjectPropertySetter(readString),
'src': makeObjectPropertySetter(readString),
'link': parseLink,
'sym': makeObjectPropertySetter(readString),
'type': makeObjectPropertySetter(readString),
'fix': makeObjectPropertySetter(readString),
'sat': makeObjectPropertySetter(readPositiveInteger),
'hdop': makeObjectPropertySetter(readDecimal),
'vdop': makeObjectPropertySetter(readDecimal),
'pdop': makeObjectPropertySetter(readDecimal),
'ageofdgpsdata': makeObjectPropertySetter(readDecimal),
'dgpsid': makeObjectPropertySetter(readPositiveInteger),
'extensions': parseExtensions,
});
/**
* @const
* @type {Array<string>}
*/
const LINK_SEQUENCE = ['text', 'type'];
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Serializer>>}
*/
// @ts-ignore
const LINK_SERIALIZERS = makeStructureNS(NAMESPACE_URIS, {
'text': makeChildAppender(writeStringTextNode),
'type': makeChildAppender(writeStringTextNode),
});
/**
* @const
* @type {Object<string, Array<string>>}
*/
// @ts-ignore
const RTE_SEQUENCE = makeStructureNS(NAMESPACE_URIS, [
'name',
'cmt',
'desc',
'src',
'link',
'number',
'type',
'rtept',
]);
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Serializer>>}
*/
// @ts-ignore
const RTE_SERIALIZERS = makeStructureNS(NAMESPACE_URIS, {
'name': makeChildAppender(writeStringTextNode),
'cmt': makeChildAppender(writeStringTextNode),
'desc': makeChildAppender(writeStringTextNode),
'src': makeChildAppender(writeStringTextNode),
'link': makeChildAppender(writeLink),
'number': makeChildAppender(writeNonNegativeIntegerTextNode),
'type': makeChildAppender(writeStringTextNode),
'rtept': makeArraySerializer(makeChildAppender(writeWptType)),
});
/**
* @const
* @type {Object<string, Array<string>>}
*/
// @ts-ignore
const RTEPT_TYPE_SEQUENCE = makeStructureNS(NAMESPACE_URIS, ['ele', 'time']);
/**
* @const
* @type {Object<string, Array<string>>}
*/
// @ts-ignore
const TRK_SEQUENCE = makeStructureNS(NAMESPACE_URIS, [
'name',
'cmt',
'desc',
'src',
'link',
'number',
'type',
'trkseg',
]);
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Serializer>>}
*/
// @ts-ignore
const TRK_SERIALIZERS = makeStructureNS(NAMESPACE_URIS, {
'name': makeChildAppender(writeStringTextNode),
'cmt': makeChildAppender(writeStringTextNode),
'desc': makeChildAppender(writeStringTextNode),
'src': makeChildAppender(writeStringTextNode),
'link': makeChildAppender(writeLink),
'number': makeChildAppender(writeNonNegativeIntegerTextNode),
'type': makeChildAppender(writeStringTextNode),
'trkseg': makeArraySerializer(makeChildAppender(writeTrkSeg)),
});
/**
* @const
* @type {function(*, Array<*>, string=): (Node|undefined)}
*/
const TRKSEG_NODE_FACTORY = makeSimpleNodeFactory('trkpt');
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Serializer>>}
*/
// @ts-ignore
const TRKSEG_SERIALIZERS = makeStructureNS(NAMESPACE_URIS, {
'trkpt': makeChildAppender(writeWptType),
});
/**
* @const
* @type {Object<string, Array<string>>}
*/
// @ts-ignore
const WPT_TYPE_SEQUENCE = makeStructureNS(NAMESPACE_URIS, [
'ele',
'time',
'magvar',
'geoidheight',
'name',
'cmt',
'desc',
'src',
'link',
'sym',
'type',
'fix',
'sat',
'hdop',
'vdop',
'pdop',
'ageofdgpsdata',
'dgpsid',
]);
/**
* @const
* @type {Object<string, Object<string, import("../xml.js").Serializer>>}
*/
// @ts-ignore
const WPT_TYPE_SERIALIZERS = makeStructureNS(NAMESPACE_URIS, {
'ele': makeChildAppender(writeDecimalTextNode),
'time': makeChildAppender(writeDateTimeTextNode),
'magvar': makeChildAppender(writeDecimalTextNode),
'geoidheight': makeChildAppender(writeDecimalTextNode),
'name': makeChildAppender(writeStringTextNode),
'cmt': makeChildAppender(writeStringTextNode),
'desc': makeChildAppender(writeStringTextNode),
'src': makeChildAppender(writeStringTextNode),
'link': makeChildAppender(writeLink),
'sym': makeChildAppender(writeStringTextNode),
'type': makeChildAppender(writeStringTextNode),
'fix': makeChildAppender(writeStringTextNode),
'sat': makeChildAppender(writeNonNegativeIntegerTextNode),
'hdop': makeChildAppender(writeDecimalTextNode),
'vdop': makeChildAppender(writeDecimalTextNode),
'pdop': makeChildAppender(writeDecimalTextNode),
'ageofdgpsdata': makeChildAppender(writeDecimalTextNode),
'dgpsid': makeChildAppender(writeNonNegativeIntegerTextNode),
});
/**
* @const
* @type {Object<string, string>}
*/
const GEOMETRY_TYPE_TO_NODENAME = {
'Point': 'wpt',
'LineString': 'rte',
'MultiLineString': 'trk',
};
/**
* @param {*} value Value.
* @param {Array<*>} objectStack Object stack.
* @param {string} [nodeName] Node name.
* @return {Node|undefined} Node.
*/
function GPX_NODE_FACTORY(value, objectStack, nodeName) {
const geometry = /** @type {Feature} */ (value).getGeometry();
if (geometry) {
const nodeName = GEOMETRY_TYPE_TO_NODENAME[geometry.getType()];
if (nodeName) {
const parentNode = objectStack[objectStack.length - 1].node;
return createElementNS(parentNode.namespaceURI, nodeName);
}
}
}
/**
* @param {Array<number>} flatCoordinates Flat coordinates.
* @param {LayoutOptions} layoutOptions Layout options.
* @param {Element} node Node.
* @param {!Object} values Values.
* @return {Array<number>} Flat coordinates.
*/
function appendCoordinate(flatCoordinates, layoutOptions, node, values) {
flatCoordinates.push(
parseFloat(node.getAttribute('lon')),
parseFloat(node.getAttribute('lat')),
);
if ('ele' in values) {
flatCoordinates.push(/** @type {number} */ (values['ele']));
delete values['ele'];
layoutOptions.hasZ = true;
} else {
flatCoordinates.push(0);
}
if ('time' in values) {
flatCoordinates.push(/** @type {number} */ (values['time']));
delete values['time'];
layoutOptions.hasM = true;
} else {
flatCoordinates.push(0);
}
return flatCoordinates;
}
/**
* Choose GeometryLayout based on flags in layoutOptions and adjust flatCoordinates
* and ends arrays by shrinking them accordingly (removing unused zero entries).
*
* @param {LayoutOptions} layoutOptions Layout options.
* @param {Array<number>} flatCoordinates Flat coordinates.
* @param {Array<number>} [ends] Ends.
* @return {import("../geom/Geometry.js").GeometryLayout} Layout.
*/
function applyLayoutOptions(layoutOptions, flatCoordinates, ends) {
/** @type {import("../geom/Geometry.js").GeometryLayout} */
let layout = 'XY';
let stride = 2;
if (layoutOptions.hasZ && layoutOptions.hasM) {
layout = 'XYZM';
stride = 4;
} else if (layoutOptions.hasZ) {
layout = 'XYZ';
stride = 3;
} else if (layoutOptions.hasM) {
layout = 'XYM';
stride = 3;
}
if (stride !== 4) {
for (let i = 0, ii = flatCoordinates.length / 4; i < ii; i++) {
flatCoordinates[i * stride] = flatCoordinates[i * 4];
flatCoordinates[i * stride + 1] = flatCoordinates[i * 4 + 1];
if (layoutOptions.hasZ) {
flatCoordinates[i * stride + 2] = flatCoordinates[i * 4 + 2];
}
if (layoutOptions.hasM) {
flatCoordinates[i * stride + 2] = flatCoordinates[i * 4 + 3];
}
}
flatCoordinates.length = (flatCoordinates.length / 4) * stride;
if (ends) {
for (let i = 0, ii = ends.length; i < ii; i++) {
ends[i] = (ends[i] / 4) * stride;
}
}
}
return layout;
}
/**
* @param {Element} node Node.
* @param {Array<any>} objectStack Object stack.
* @return {GPXAuthor | undefined} Person object.
*/
function readAuthor(node, objectStack) {
const values = pushParseAndPop({}, AUTHOR_PARSERS, node, objectStack);
if (values) {
return values;
}
return undefined;
}
/**
* @param {Element} node Node.
* @param {Array<any>} objectStack Object stack.
* @return {GPXCopyright | undefined} Person object.
*/
function readCopyright(node, objectStack) {
const values = pushParseAndPop({}, COPYRIGHT_PARSERS, node, objectStack);
if (values) {
const author = node.getAttribute('author');
if (author !== null) {
values['author'] = author;
}
return values;
}
return undefined;
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseBounds(node, objectStack) {
const values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
const minlat = node.getAttribute('minlat');
const minlon = node.getAttribute('minlon');
const maxlat = node.getAttribute('maxlat');
const maxlon = node.getAttribute('maxlon');
if (
minlon !== null &&
minlat !== null &&
maxlon !== null &&
maxlat !== null
) {
values['bounds'] = [
[parseFloat(minlon), parseFloat(minlat)],
[parseFloat(maxlon), parseFloat(maxlat)],
];
}
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseEmail(node, objectStack) {
const values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
const id = node.getAttribute('id');
const domain = node.getAttribute('domain');
if (id !== null && domain !== null) {
values['email'] = `${id}@${domain}`;
}
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseLink(node, objectStack) {
const values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
const href = node.getAttribute('href');
if (href !== null) {
values['link'] = href;
}
parseNode(LINK_PARSERS, node, objectStack);
}
/**
* @param {Node} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseExtensions(node, objectStack) {
const values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
values['extensionsNode_'] = node;
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseRtePt(node, objectStack) {
const values = pushParseAndPop({}, RTEPT_PARSERS, node, objectStack);
if (values) {
const rteValues = /** @type {!Object} */ (
objectStack[objectStack.length - 1]
);
const flatCoordinates = /** @type {Array<number>} */ (
rteValues['flatCoordinates']
);
const layoutOptions = /** @type {LayoutOptions} */ (
rteValues['layoutOptions']
);
appendCoordinate(flatCoordinates, layoutOptions, node, values);
}
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseTrkPt(node, objectStack) {
const values = pushParseAndPop({}, TRKPT_PARSERS, node, objectStack);
if (values) {
const trkValues = /** @type {!Object} */ (
objectStack[objectStack.length - 1]
);
const flatCoordinates = /** @type {Array<number>} */ (
trkValues['flatCoordinates']
);
const layoutOptions = /** @type {LayoutOptions} */ (
trkValues['layoutOptions']
);
appendCoordinate(flatCoordinates, layoutOptions, node, values);
}
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
*/
function parseTrkSeg(node, objectStack) {
const values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
parseNode(TRKSEG_PARSERS, node, objectStack);
const flatCoordinates =
/** @type {Array<number>} */
(values['flatCoordinates']);
const ends = /** @type {Array<number>} */ (values['ends']);
ends.push(flatCoordinates.length);
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
* @return {Feature|undefined} Track.
*/
function readRte(node, objectStack) {
const options = /** @type {import("./Feature.js").ReadOptions} */ (
objectStack[0]
);
const values = pushParseAndPop(
{
'flatCoordinates': [],
'layoutOptions': {},
},
RTE_PARSERS,
node,
objectStack,
);
if (!values) {
return undefined;
}
const flatCoordinates =
/** @type {Array<number>} */
(values['flatCoordinates']);
delete values['flatCoordinates'];
const layoutOptions = /** @type {LayoutOptions} */ (values['layoutOptions']);
delete values['layoutOptions'];
const layout = applyLayoutOptions(layoutOptions, flatCoordinates);
const geometry = new LineString(flatCoordinates, layout);
transformGeometryWithOptions(geometry, false, options);
const feature = new Feature(geometry);
feature.setProperties(values, true);
return feature;
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
* @return {Feature|undefined} Track.
*/
function readTrk(node, objectStack) {
const options = /** @type {import("./Feature.js").ReadOptions} */ (
objectStack[0]
);
const values = pushParseAndPop(
{
'flatCoordinates': [],
'ends': [],
'layoutOptions': {},
},
TRK_PARSERS,
node,
objectStack,
);
if (!values) {
return undefined;
}
const flatCoordinates =
/** @type {Array<number>} */
(values['flatCoordinates']);
delete values['flatCoordinates'];
const ends = /** @type {Array<number>} */ (values['ends']);
delete values['ends'];
const layoutOptions = /** @type {LayoutOptions} */ (values['layoutOptions']);
delete values['layoutOptions'];
const layout = applyLayoutOptions(layoutOptions, flatCoordinates, ends);
const geometry = new MultiLineString(flatCoordinates, layout, ends);
transformGeometryWithOptions(geometry, false, options);
const feature = new Feature(geometry);
feature.setProperties(values, true);
return feature;
}
/**
* @param {Element} node Node.
* @param {Array<*>} objectStack Object stack.
* @return {Feature|undefined} Waypoint.
*/
function readWpt(node, objectStack) {
const options = /** @type {import("./Feature.js").ReadOptions} */ (
objectStack[0]
);
const values = pushParseAndPop({}, WPT_PARSERS, node, objectStack);
if (!values) {
return undefined;
}
const layoutOptions = /** @type {LayoutOptions} */ ({});
const coordinates = appendCoordinate([], layoutOptions, node, values);
const layout = applyLayoutOptions(layoutOptions, coordinates);
const geometry = new Point(coordinates, layout);
transformGeometryWithOptions(geometry, false, options);
const feature = new Feature(geometry);
feature.setProperties(values, true);
return feature;
}
/**
* @param {Element} node Node.
* @param {string} value Value for the link's `href` attribute.
* @param {Array<*>} objectStack Node stack.
*/
function writeLink(node, value, objectStack) {
node.setAttribute('href', value);
const context = objectStack[objectStack.length - 1];
const properties = context['properties'];
const link = [properties['linkText'], properties['linkType']];
pushSerializeAndPop(
/** @type {import("../xml.js").NodeStackItem} */ ({node: node}),
LINK_SERIALIZERS,
OBJECT_PROPERTY_NODE_FACTORY,
link,
objectStack,
LINK_SEQUENCE,
);
}
/**
* @param {Element} node Node.
* @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
* @param {Array<*>} objectStack Object stack.
*/
function writeWptType(node, coordinate, objectStack) {
const context = objectStack[objectStack.length - 1];
const parentNode = context.node;
const namespaceURI = parentNode.namespaceURI;
const properties = context['properties'];
//FIXME Projection handling
node.setAttributeNS(null, 'lat', String(coordinate[1]));
node.setAttributeNS(null, 'lon', String(coordinate[0]));
const geometryLayout = context['geometryLayout'];
switch (geometryLayout) {
case 'XYZM':
if (coordinate[3] !== 0) {
properties['time'] = coordinate[3];