98 lines
3.5 KiB
JavaScript
98 lines
3.5 KiB
JavaScript
/**
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* Track loading commons
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*/
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BR.Track = {
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/**
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* Returns common options for styling and appearance of tracks
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*
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* @param {BR.ControlLayers} layersControl Layers control instance
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*
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* @returns {Object} to pass as `options` parameter to `L.geoJson`
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*/
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getGeoJsonOptions: function (layersControl) {
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// https://github.com/mapbox/simplestyle-spec/tree/master/1.1.0
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const styleMapping = [
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['stroke', 'color'],
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['stroke-width', 'weight'],
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['stroke-opacity', 'opacity'],
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['fill', 'fillColor'],
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['fill-opacity', 'fillOpacity'],
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];
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return {
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style: function (geoJsonFeature) {
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var currentLayerId = layersControl?.getActiveBaseLayer().layer.id;
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const featureStyle = {
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color: currentLayerId === 'cyclosm' ? 'yellow' : 'blue',
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weight: 4,
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};
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for (const [simpleStyle, leafletStyle] of styleMapping) {
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if (geoJsonFeature?.properties?.[simpleStyle]) {
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featureStyle[leafletStyle] = geoJsonFeature.properties[simpleStyle];
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}
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}
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return featureStyle;
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},
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interactive: false,
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filter: function (geoJsonFeature) {
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// remove POIs, added separately
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return !BR.Track.isPoiPoint(geoJsonFeature);
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},
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pointToLayer: function (geoJsonPoint, latlng) {
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// route waypoint (type=from/via/to)
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return L.marker(latlng, {
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interactive: false,
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opacity: 0.7,
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// prevent being on top of route markers
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zIndexOffset: -1000,
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});
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},
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pane: 'tracks',
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};
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},
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/**
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* Add Points in the passed `geoJson` as POI markers, except route waypoints (type=from|via|to)
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*
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* @param {BR.PoiMarkers} pois POI control instance
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* @param {Object} geoJson GeoJSON object
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*/
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addPoiMarkers: function (pois, geoJson) {
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turf.featureEach(geoJson, function (feature, idx) {
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if (BR.Track.isPoiPoint(feature)) {
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var coord = turf.getCoord(feature);
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var latlng = L.GeoJSON.coordsToLatLng(coord);
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var name = '';
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if (feature.properties && feature.properties.name) name = feature.properties.name;
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pois.addMarker(latlng, name);
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}
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});
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},
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/**
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* Checks if the passed GeoJSON Point feature is a route waypoint.
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*
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* Route points are exported e.g. as GPX `wpt` with a `type=from|via|to` property
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* if the "waypoints" option is checked in the Export dialog.
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*
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* @param {Object} geoJsonPointFeature GeoJSON Point feature
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*/
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isRouteWaypoint: function (geoJsonPointFeature) {
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var props = geoJsonPointFeature.properties;
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if (props && props.type) {
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var wptType = props.type;
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if (wptType === 'from' || wptType === 'via' || wptType === 'to') {
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return true;
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}
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}
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return false;
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},
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/**
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* Checks if the passed GeoJSON feature should be added as a POI
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*
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* @param {Object} geoJsonFeature GeoJSON feature
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*/
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isPoiPoint: function (geoJsonFeature) {
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return turf.getType(geoJsonFeature) === 'Point' && !BR.Track.isRouteWaypoint(geoJsonFeature);
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},
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};
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