Angular Binding Multiple Data Sources

In the Ignite UI for Angular map, you can add multiple geographic series objects to overlay custom data sources with geo-spacial data. For example, GeographicSymbolSeries for plotting geographic locations of airports, the GeographicPolylineSeries for plotting flights between airports, and 2nd GeographicPolylineSeries for plotting gridlines of major geographic coordinates.

Angular Binding Multiple Data Sources Example

This topic takes you step-by-step towards displaying multiple geographic series that will plot following geo-spatial data:

• GeographicSymbolSeries – displays locations of major airports
• GeographicPolylineSeries – displays flights between airports
• GeographicPolylineSeries – displays gridlines of major coordinates

You can use geographic series in this or other combinations to plot desired data.

Creating Data Sources

Create data sources for all geographic series that you want to display in the Ignite UI for Angular map. For example, you can the use WorldConnections script.

<div class="sampleRoot" >
    <igx-geographic-map #map
        width="700px"
        height="500px"
        zoomable="true" >
    </igx-geographic-map>
</div>

<ng-template let-series="series" let-item="item" #polylineTooltipTemplate>
        <div>
            <span>
            Arrival: {{item.origin.country}}
            </span>
            <br/>
            <span>
            Destination: {{item.dest.country}}
            </span>
            <br/>
            <span>
            Distance: {{item.distance}} miles
            </span>
        </div>
    </ng-template>

    <ng-template let-series="series" let-item="item" #pointTooltipTemplate>
            <div>
                <span>
                {{item?.country}}
                </span>
                <br />
                <span>
                {{item?.name}}
                </span>
                <br />
                <span>
                Population: {{item.pop}} M
                </span>
                <br/>
                <span>
                Flights: {{item.flights}}
                </span>
            </div>
        </ng-template>

Overlaying Flights

Create first GeographicPolylineSeries object with flight connections between major airports and add it to the Series collection of the Ignite UI for Angular map.

<igx-geographic-polyline-series  #polylineSeries
        [tooltipTemplate]="polylineTooltipTemplate"
                name="polylineSeries"
                shapeMemberPath="points"
                shapeStroke="rgba(147, 15, 180, 0.5)"
                thickness={3.0} >
</igx-geographic-polyline-series>

Overlaying Gridlines

Create second GeographicPolylineSeries object with geographic gridlines and add it to the Series collection of the Ignite UI for Angular map.

  <igx-geographic-polyline-series  #polylineSeries
            [tooltipTemplate]="polylineTooltipTemplate"
                 datasource = worldFlights
                 name="polylineSeries"
                 shapeMemberPath="points"
                 shapeStroke="rgba(196, 14, 14,0.05)"
                 thickness={3.0} >
    </igx-geographic-polyline-series>

Overlaying Airports

Create GeographicSymbolSeries object with airport points and add it to the Series collection of the geographic Ignite UI for Angular map.

<igx-geographic-symbol-series  #symbolSeries
    name="symbolSeries"
    longitudeMemberPath="longitude"
    latitudeMemberPath="latitude"
    markerType="Circle"
    markerOutline="rgb(73, 73, 73)"
    markerBrush="White" >
</igx-geographic-symbol-series>

Summary

For your convenience, all above code snippets are combined into one code block below that you can easily copy to your project.

import { AfterViewInit, Component, TemplateRef, ViewChild } from "@angular/core";
import { MarkerType } from 'igniteui-angular-charts';
import { IgxGeographicMapComponent } from 'igniteui-angular-maps';
import { IgxGeographicPolylineSeriesComponent } from "igniteui-angular-maps";
import { IgxGeographicSymbolSeriesComponent } from "igniteui-angular-maps";
import { WorldConnections } from "../../utilities/WorldConnections";

@Component({
  selector: "app-map-binding-multiple-data-sources",
  styleUrls: ["./map-binding-multiple-data-sources.component.scss"],
  templateUrl: "./map-binding-multiple--data-sources.component.html"
})

export class MapBindingMultipleSourcesComponent implements AfterViewInit {

    @ViewChild ("map")
    public map: IgxGeographicMapComponent;

    @ViewChild("polylineTooltipTemplate")
    public polylineTooltipTemplate: TemplateRef<object>;

    @ViewChild("pointTooltipTemplate")
    public pointTooltipTemplate: TemplateRef<object>;

    public data: any;
    constructor() {
    }

    public ngAfterViewInit(): void {
      this.map.windowRect = { left: 0.195, top: 0.1, width: 0.5, height: 0.5 };

      const worldFlights = WorldConnections.getFlights();
      const worldAirports = WorldConnections.getAirports();
      const worldGridlines = WorldConnections.getGridlines();

      this.addPolylineSeriesWith(worldFlights);
      this.addGridlineSeriesWith(worldGridlines);
      this.addSymbolSeriesWith(worldAirports);
    }

    public addGridlineSeriesWith(data: any[]) {
        const gridSeries = new IgxGeographicPolylineSeriesComponent();
        gridSeries.dataSource = data;
        gridSeries.shapeMemberPath = "points";
        gridSeries.shapeStroke = "Gray";
        gridSeries.shapeStrokeThickness = 1;
        this.map.series.add(gridSeries);
    }

    public addPolylineSeriesWith(data: any[]) {
        const lineSeries = new IgxGeographicPolylineSeriesComponent ();
        lineSeries.dataSource = data;
        lineSeries.shapeMemberPath = "points";
        lineSeries.shapeStroke = "rgba(196, 14, 14,0.05)";
        lineSeries.shapeStrokeThickness = 4;
        lineSeries.tooltipTemplate = this.polylineTooltipTemplate;
        this.map.series.add(lineSeries);
    }

    public addSymbolSeriesWith(data: any[]) {
        const symbolSeries = new IgxGeographicSymbolSeriesComponent ();
        symbolSeries.dataSource = data;
        symbolSeries.markerType = MarkerType.Circle;
        symbolSeries.latitudeMemberPath = "lat";
        symbolSeries.longitudeMemberPath = "lon";
        symbolSeries.markerBrush = "#aad3df";
        symbolSeries.markerOutline = "rgb(73, 73, 73)";
        symbolSeries.thickness = 1;
        symbolSeries.tooltipTemplate = this.pointTooltipTemplate;
        this.map.series.add(symbolSeries);
    }
}

API References