polyline.ts
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///
/// Copyright © 2016-2020 The Thingsboard Authors
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
import L, { PolylineDecoratorOptions } from 'leaflet';
import 'leaflet-polylinedecorator';
import { FormattedData, PolylineSettings } from './map-models';
import { safeExecute } from '@home/components/widget/lib/maps/maps-utils';
export class Polyline {
leafletPoly: L.Polyline;
polylineDecorator: L.PolylineDecorator;
dataSources: FormattedData[];
data: FormattedData;
constructor(private map: L.Map, locations: L.LatLng[], data: FormattedData, dataSources: FormattedData[], settings: PolylineSettings) {
this.dataSources = dataSources;
this.data = data;
this.leafletPoly = L.polyline(locations,
this.getPolyStyle(settings)
).addTo(this.map);
if (settings.usePolylineDecorator) {
this.polylineDecorator = L.polylineDecorator(this.leafletPoly, this.getDecoratorSettings(settings)).addTo(this.map);
}
}
getDecoratorSettings(settings: PolylineSettings): PolylineDecoratorOptions {
return {
patterns: [
{
offset: settings.decoratorOffset,
endOffset: settings.endDecoratorOffset,
repeat: settings.decoratorRepeat,
symbol: L.Symbol[settings.decoratorSymbol]({
pixelSize: settings.decoratorSymbolSize,
polygon: false,
pathOptions: {
color: settings.useDecoratorCustomColor ? settings.decoratorCustomColor : this.getPolyStyle(settings).color,
stroke: true
}
})
}
]
}
}
updatePolyline(locations: L.LatLng[], data: FormattedData, dataSources: FormattedData[], settings: PolylineSettings) {
this.data = data;
this.dataSources = dataSources;
this.leafletPoly.setLatLngs(locations);
this.leafletPoly.setStyle(this.getPolyStyle(settings));
if (this.polylineDecorator)
this.polylineDecorator.setPaths(this.leafletPoly);
}
getPolyStyle(settings: PolylineSettings): L.PolylineOptions {
return {
interactive: false,
color: settings.useColorFunction ?
safeExecute(settings.colorFunction,
[this.data, this.dataSources, this.data.dsIndex]) : settings.color,
opacity: settings.useStrokeOpacityFunction ?
safeExecute(settings.strokeOpacityFunction,
[this.data, this.dataSources, this.data.dsIndex]) : settings.strokeOpacity,
weight: settings.useStrokeWeightFunction ?
safeExecute(settings.strokeWeightFunction,
[this.data, this.dataSources, this.data.dsIndex]) : settings.strokeWeight,
}
}
removePolyline() {
this.map.removeLayer(this.leafletPoly);
}
getPolylineLatLngs() {
return this.leafletPoly.getLatLngs();
}
}