Blazor Binding Multiple Data Sources

En la Ignite UI for Blazor, puede agregar varios objetos de series geográficas para superponer fuentes de datos personalizadas con datos geoespaciales. Por ejemplo, IgbGeographicSymbolSeries para trazar ubicaciones geográficas de aeropuertos, IgbGeographicPolylineSeries para trazar vuelos entre aeropuertos y 2nd IgbGeographicPolylineSeries para trazar líneas de cuadrícula de coordenadas geográficas principales.

Blazor Binding Multiple Data Sources Example

EXAMPLE

MODULES

GeoLocation.cs

WorldCity.cs

WorldConnections.cs

WorldLocations.cs

WorldUtils.cs

RAZOR

CSS

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbGeographicMapModule),
                typeof(IgbDataChartInteractivityModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Infragistics.Samples
{
    public class GeoLocation
    {
        public double Lat { get; set; }
        public double Lon { get; set; }
    }
}csコピー

using System;

namespace Infragistics.Samples
{
    public class WorldCity
    {
        public double Lat { get; set; }
        public double Lon { get; set; }
        public double Pop { get; set; }
        public string Country { get; set; }
        public string Name { get; set; }
        public bool Cap { get; set; }
    }
}csコピー

using IgniteUI.Blazor.Controls;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;

namespace Infragistics.Samples
{
    public static class WorldConnections
    {
        public static List<FlightInfo> Flights { get; set; }
        public static List<WorldCity> Airports { get; set; }

        public static Dictionary<string, string> FlightsLookup = new Dictionary<string, string>();
        public static Dictionary<string, WorldCity> AirportsLookup = new Dictionary<string, WorldCity>();

        static WorldConnections()
        {
            Init();
        }

        public static List<FlightInfo> GetFlights()
        {;
            return Flights;
        }

        public static List<WorldCity> GetAirports()
        {
            return Airports;
        }

        public static int ComparePopulation(WorldCity a, WorldCity b)
        {
            if(a.Pop < b.Pop)
            {
                return 1;
            }
            if(a.Pop > b.Pop)
            {
                return -1;
            }

            return 0;
        }

        static Random rand = new Random();

        public static void Init()
        {
            Flights = new List<FlightInfo>();
            Airports = new List<WorldCity>();

            var fullCityList = WorldLocations.GetAll();
            var cities = new List<WorldCity>();

            var countries = new Dictionary<string, int>();

            foreach (var city in fullCityList)
            {
                if (countries.ContainsKey(city.Country))
                {
                    if (countries[city.Country] < 2)
                    {
                        cities.Add(city);
                        countries[city.Country]++;
                    }
                }
                else
                {
                    cities.Add(city);
                    countries.Add(city.Country, 1);
                }
            }

            fullCityList.Sort(new Comparison<WorldCity>(ComparePopulation));

            int count = cities.Count;
            int flightsCount = 0;

            double minDistance = 200;
            double maxDistance = 10000;
            double flightsLimit = 250;

            for (int i = 0; i < count; i++)
            {
                WorldCity origin = cities[i];
                int connectionsCount = 0;
                double connectionsMax = Math.Min(20, Math.Round(origin.Pop * 4));

                for (int j = 0; j < count; j++)
                {
                    WorldCity dest = cities[j];

                    GeoLocation originGeo = new GeoLocation() { Lat = origin.Lat, Lon = origin.Lon };
                    GeoLocation destGeo = new GeoLocation() { Lat = dest.Lat, Lon = dest.Lon };

                    if(origin.Name != dest.Name)
                    {
                        string route = origin.Name + "-" + dest.Name;
                        bool routeIsValid = !FlightsLookup.ContainsKey(route);

                        double distance = Math.Round(WorldUtils.CalcDistance(originGeo, destGeo));
                        bool distanceIsValid = distance > minDistance && distance < maxDistance;

                        double pass = Math.Round(rand.NextDouble() * 200) + 150;
                        double time = distance / 800;
                        bool trafficIsValid = origin.Pop > 3 && dest.Pop > 1.0;

                        if(routeIsValid && distanceIsValid && trafficIsValid)
                        {
                            FlightsLookup.Add(route, route);

                            List<List<Point>> paths = WorldUtils.CalcPaths(originGeo, destGeo);
                            flightsCount++;
                            connectionsCount++;

                            string id = origin.Name.Substring(0, 3).ToUpper() + "-" + flightsCount;
                            FlightInfo flight = new FlightInfo() { ID = id, Origin = origin, Dest = dest, Time = time, Passengers = pass, Distance = distance, Points = paths };
                            Flights.Add(flight);
                        }

                        if (connectionsCount > connectionsMax)
                        {
                            break;
                        }
                        if (flightsCount > flightsLimit)
                        {
                            break;
                        }
                    }
                }

            }

            foreach(FlightInfo flight in Flights)
            {
                AddAirport(flight.Origin);
                AddAirport(flight.Dest);
            }

            Airports = AirportsLookup.Values.ToList();
        }

        public static void AddAirport(WorldCity city)
        {
            if (!AirportsLookup.ContainsKey(city.Name))
            {
                AirportsLookup.Add(city.Name, city);
            }
        }

        public static List<CoordinateLine> GetGridlines()
        {
            List<CoordinateLine> gridlines = new List<CoordinateLine>();

            List<List<Point>> latLines = new List<List<Point>>();
            List<List<Point>> lonLines = new List<List<Point>>();

            for (int lon = -180; lon <= 180; lon += 30)
            {
                List<Point> points = new List<Point>();
                points.Add(new Point(lon, -90));
                points.Add(new Point(lon, 90));

                lonLines.Add(points);
            }

            for (int lat = -90; lat <= 90; lat += 30)
            {
                List<Point> points = new List<Point>();
                points.Add(new Point(-180, lat));
                points.Add(new Point(180, lat));

                latLines.Add(points);
            }

            CoordinateLine lines1 = new CoordinateLine() { Points = lonLines };
            CoordinateLine lines2 = new CoordinateLine() { Points = latLines };

            gridlines.Add(lines1);
            gridlines.Add(lines2);

            return gridlines;
        }
    }

    public class FlightInfo
    {
        public string ID { get; set; }
        public WorldCity Origin { get; set; }
        public WorldCity Dest { get; set; }
        public double Time { get; set; }
        public double Passengers { get; set; }
        public double Distance { get; set; }
        public List<List<Point>> Points { get; set; }
        public string Color { get; set; }
    }

    public class CoordinateLine
    {
        public List<List<Point>> Points { get; set; }
    }
}csコピー

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Infragistics.Samples
{
    public static class WorldLocations
    {
        public static List<WorldCity> GetAll()
        {
            return WorldLocations.Init();
        }

        public static List<WorldCity> GetCities()
        {
            List<WorldCity> all = WorldLocations.Init();
            return all.Where(c => c.Cap == false).ToList();
        }

        public static List<WorldCity> GetCapitals()
        {
            List<WorldCity> all = WorldLocations.Init();
            return all.Where(c => c.Cap == true).ToList();
        }

        public static List<WorldCity> Init()
        {
            List<WorldCity> cities = new List<WorldCity>() {
            // console.log("WorldLocations init");
            new WorldCity { Cap = false, Pop = 0.468, Lat = 68.9635467529297, Lon = 33.0860404968262, Country = "Russia", Name = "Murmansk" },
            new WorldCity { Cap = false, Pop = 0.416, Lat = 64.5206680297852, Lon = 40.6461601257324, Country = "Russia", Name = "Arkhangelsk" },
            new WorldCity { Cap = false, Pop = 5.825, Lat = 59.9518890380859, Lon = 30.4533271789551, Country = "Russia", Name = "Saint Petersburg" },
            new WorldCity { Cap = false, Pop = 0.152, Lat = 59.5709991455078, Lon = 150.780014038086, Country = "Russia", Name = "Magadan" },
            new WorldCity { Cap = false, Pop = 1.160, Lat = 58.0002365112305, Lon = 56.2324638366699, Country = "Russia", Name = "Perm'" },
            new WorldCity { Cap = false, Pop = 1.620, Lat = 56.8465423583984, Lon = 60.6101303100586, Country = "Russia", Name = "Yekaterinburg" },
            new WorldCity { Cap = false, Pop = 2.025, Lat = 56.2896766662598, Lon = 43.9406700134277, Country = "Russia", Name = "Nizhniy Novgorod" },
            new WorldCity { Cap = false, Pop = 1.800, Lat = 55.8628082275391, Lon = -4.26994752883911, Country = "UK", Name = "Glasgow" },
            new WorldCity { Cap = false, Pop = 1.140, Lat = 55.7330055236816, Lon = 49.1454658508301, Country = "Russia", Name = "Kazan'" },
            new WorldCity { Cap = false, Pop = 1.325, Lat = 55.1450004577637, Lon = 61.3926124572754, Country = "Russia", Name = "Chelyabinsk" },
            new WorldCity { Cap = false, Pop = 1.175, Lat = 55.063304901123, Lon = 73.2502899169922, Country = "Russia", Name = "Omsk" },
            new WorldCity { Cap = false, Pop = 1.600, Lat = 55.0321006774902, Lon = 82.9428482055664, Country = "Russia", Name = "Novosibirsk" },
            new WorldCity { Cap = false, Pop = 1.100, Lat = 54.8217353820801, Lon = 56.0961265563965, Country = "Russia", Name = "Ufa" },
            new WorldCity { Cap = true,  Pop = 0.582, Lat = 54.6885681152344, Lon = 25.2759666442871, Country = "Lithuania", Name = "Vilnius" },
            new WorldCity { Cap = false, Pop = 0.685, Lat = 54.5869255065918, Lon = -5.90966033935547, Country = "UK", Name = "Belfast" },
            new WorldCity { Cap = false, Pop = 0.909, Lat = 54.3662033081055, Lon = 18.624942779541, Country = "Poland", Name = "Gdansk" },
            new WorldCity { Cap = true,  Pop = 1.650, Lat = 53.8999366760254, Lon = 27.5755672454834, Country = "Byelarus", Name = "Minsk" },
            new WorldCity { Cap = false, Pop = 1.540, Lat = 53.8087120056152, Lon = -1.49752748012543, Country = "UK", Name = "Leeds" },
            new WorldCity { Cap = false, Pop = 2.225, Lat = 53.5711212158203, Lon = 10.027606010437, Country = "Germany", Name = "Hamburg" },
            new WorldCity { Cap = false, Pop = 2.775, Lat = 53.479663848877, Lon = -2.26177859306335, Country = "UK", Name = "Manchester" },
            new WorldCity { Cap = false, Pop = 0.710, Lat = 53.3740425109863, Lon = -1.46298921108246, Country = "UK", Name = "Sheffield" },
            new WorldCity { Cap = true,  Pop = 1.140, Lat = 53.3415603637695, Lon = -6.25734663009644, Country = "Ireland", Name = "Dublin" },
            new WorldCity { Cap = false, Pop = 1.505, Lat = 53.1385955810547, Lon = 50.0961799621582, Country = "Russia", Name = "Samara" },
            new WorldCity { Cap = false, Pop = 0.800, Lat = 53.0801048278809, Lon = 8.85762596130371, Country = "Germany", Name = "Bremen" },
            new WorldCity { Cap = true,  Pop = 5.061, Lat = 52.5162734985352, Lon = 13.3275728225708, Country = "Germany", Name = "Berlin" },
            new WorldCity { Cap = false, Pop = 2.675, Lat = 52.4927520751953, Lon = -1.86334776878357, Country = "UK", Name = "Birmingham" },
            new WorldCity { Cap = true,  Pop = 1.860, Lat = 52.3730430603027, Lon = 4.89483308792114, Country = "Netherlands", Name = "Amsterdam" },
            new WorldCity { Cap = false, Pop = 0.626, Lat = 52.3174324035645, Lon = 104.247833251953, Country = "Russia", Name = "Irkutsk" },
            new WorldCity { Cap = true,  Pop = 2.323, Lat = 52.244945526123, Lon = 21.0118789672852, Country = "Poland", Name = "Warsaw" },
            new WorldCity { Cap = false, Pop = 1.110, Lat = 51.925594329834, Lon = 4.48515224456787, Country = "Netherlands", Name = "Rotterdam" },
            new WorldCity { Cap = false, Pop = 1.061, Lat = 51.7779083251953, Lon = 19.4764404296875, Country = "Poland", Name = "Lodz" },
            new WorldCity { Cap = false, Pop = 0.568, Lat = 51.5138130187988, Lon = 7.46641826629639, Country = "Germany", Name = "Dortmund" },
            new WorldCity { Cap = false, Pop = 0.515, Lat = 51.4893379211426, Lon = 6.77530431747437, Country = "Germany", Name = "Duisburg" },
            new WorldCity { Cap = true,  Pop = 11.100, Lat = 51.4879112243652, Lon = -0.177998125553131, Country = "UK", Name = "london" },
            new WorldCity { Cap = false, Pop = 3.867, Lat = 51.3540420532227, Lon = 7.12243509292603, Country = "Germany", Name = "Essen" },
            new WorldCity { Cap = false, Pop = 0.700, Lat = 51.3493309020996, Lon = 12.3980741500854, Country = "Germany", Name = "Leipzig" },
            new WorldCity { Cap = false, Pop = 1.100, Lat = 51.207347869873, Lon = 4.42605447769165, Country = "Belgium", Name = "Antwerpen" },
            new WorldCity { Cap = false, Pop = 0.640, Lat = 51.1218185424805, Lon = 17.0381278991699, Country = "Poland", Name = "Wroclaw" },
            new WorldCity { Cap = false, Pop = 0.465, Lat = 51.0475540161133, Lon = 3.73629117012024, Country = "Belgium", Name = "Gent" },
            new WorldCity { Cap = false, Pop = 0.670, Lat = 51.0456809997559, Lon = 13.7053575515747, Country = "Germany", Name = "Dresden" },
            new WorldCity { Cap = false, Pop = 0.671, Lat = 51.0299987792969, Lon = -114.050003051758, Country = "Canada", Name = "Calgary" },
            new WorldCity { Cap = false, Pop = 1.760, Lat = 50.9423446655273, Lon = 6.93487167358398, Country = "Germany", Name = "Koln" },
            new WorldCity { Cap = true,  Pop = 2.385, Lat = 50.8370475769043, Lon = 4.36761236190796, Country = "Belgium", Name = "Bruxelles" },
            new WorldCity { Cap = false, Pop = 0.570, Lat = 50.7345581054688, Lon = 7.09981870651245, Country = "Germany", Name = "Bonn" },
            new WorldCity { Cap = false, Pop = 1.020, Lat = 50.6320838928223, Lon = 3.06290125846863, Country = "France", Name = "Lille" },
            new WorldCity { Cap = false, Pop = 0.750, Lat = 50.6225280761719, Lon = 5.56943559646606, Country = "Belgium", Name = "Liege" },
            new WorldCity { Cap = true,  Pop = 2.900, Lat = 50.4481582641602, Lon = 30.5021114349365, Country = "Ukraine", Name = "Kiev" },
            new WorldCity { Cap = false, Pop = 1.855, Lat = 50.129997253418, Lon = 8.66816711425781, Country = "Germany", Name = "Frankfurt am Main" },
            new WorldCity { Cap = true,  Pop = 1.325, Lat = 50.1058959960938, Lon = 14.4565200805664, Country = "Czech Repub", Name = "Prague" },
            new WorldCity { Cap = false, Pop = 0.828, Lat = 50.0622406005859, Lon = 19.9450569152832, Country = "Poland", Name = "Krakow" },
            new WorldCity { Cap = false, Pop = 0.625, Lat = 49.9211692810059, Lon = -97.1244430541992, Country = "Canada", Name = "Winnipeg" },
            new WorldCity { Cap = false, Pop = 0.614, Lat = 49.879207611084, Lon = 73.20263671875, Country = "Kazakhstan", Name = "Karaganda" },
            new WorldCity { Cap = false, Pop = 0.790, Lat = 49.8373107910156, Lon = 24.0345211029053, Country = "Ukraine", Name = "Lvov" },
            new WorldCity { Cap = false, Pop = 0.450, Lat = 49.2029800415039, Lon = 16.6162452697754, Country = "Czech Repub", Name = "Brno" },
            new WorldCity { Cap = true,  Pop = 9.775, Lat = 48.8815536499023, Lon = 2.43283271789551, Country = "France", Name = "Paris" },
            new WorldCity { Cap = false, Pop = 1.360, Lat = 48.7102470397949, Lon = 44.4836311340332, Country = "Russia", Name = "Volgograd" },
            new WorldCity { Cap = false, Pop = 0.400, Lat = 48.5834350585938, Lon = 7.76799440383911, Country = "France", Name = "Strasbourg" },
            new WorldCity { Cap = false, Pop = 0.335, Lat = 48.2975959777832, Lon = 14.2939014434814, Country = "Austria", Name = "Linz" },
            new WorldCity { Cap = true,  Pop = 1.875, Lat = 48.2021179199219, Lon = 16.3209857940674, Country = "Austria", Name = "Vienna" },
            new WorldCity { Cap = false, Pop = 1.955, Lat = 48.1409759521484, Lon = 11.5429534912109, Country = "Germany", Name = "Munchen" },
            new WorldCity { Cap = false, Pop = 2.200, Lat = 48.0401458740234, Lon = 37.7370529174805, Country = "Ukraine", Name = "Donets'k" },
            new WorldCity { Cap = true,  Pop = 0.548, Lat = 47.928596496582, Lon = 106.912353515625, Country = "Mongolia", Name = "Ulaanbaatar" },
            new WorldCity { Cap = true,  Pop = 2.565, Lat = 47.5146255493164, Lon = 19.0942497253418, Country = "Hungary", Name = "Budapest" },
            new WorldCity { Cap = false, Pop = 1.150, Lat = 47.3440055847168, Lon = 123.964965820313, Country = "China", Name = "Qiqihar" },
            new WorldCity { Cap = false, Pop = 0.185, Lat = 47.2654609680176, Lon = 11.3499822616577, Country = "Austria", Name = "Innsbruck" },
            new WorldCity { Cap = false, Pop = 1.165, Lat = 47.2320976257324, Lon = 39.6880378723145, Country = "Russia", Name = "Rostov-na-Donu" },
            new WorldCity { Cap = false, Pop = 0.465, Lat = 47.2194328308105, Lon = -1.56156122684479, Country = "France", Name = "Nantes" },
            new WorldCity { Cap = false, Pop = 0.325, Lat = 47.0649223327637, Lon = 15.4311008453369, Country = "Austria", Name = "Graz" },
            new WorldCity { Cap = true,  Pop = 0.299, Lat = 46.9482078552246, Lon = 7.44573640823364, Country = "Switzerland", Name = "Bern" },
            new WorldCity { Cap = false, Pop = 0.603, Lat = 46.802074432373, Lon = -71.2449340820313, Country = "Canada", Name = "Quebec" },
            new WorldCity { Cap = false, Pop = 1.185, Lat = 46.5722007751465, Lon = 30.6839370727539, Country = "Ukraine", Name = "Odessa" },
            new WorldCity { Cap = false, Pop = 2.670, Lat = 45.7552185058594, Lon = 126.622634887695, Country = "China", Name = "Harbin" },
            new WorldCity { Cap = false, Pop = 1.275, Lat = 45.7470817565918, Lon = 4.85540056228638, Country = "France", Name = "Lyon" },
            new WorldCity { Cap = false, Pop = 2.921, Lat = 45.541015625, Lon = -73.6535339355469, Country = "Canada", Name = "Montreal" },
            new WorldCity { Cap = false, Pop = 3.750, Lat = 45.4733810424805, Lon = 9.19046401977539, Country = "Italy", Name = "Milano" },
            new WorldCity { Cap = false, Pop = 0.420, Lat = 45.4247741699219, Lon = 12.370719909668, Country = "Italy", Name = "Venezia" },
            new WorldCity { Cap = true,  Pop = 0.819, Lat = 45.3742179870605, Lon = -75.650749206543, Country = "Canada", Name = "Ottawa" },
            new WorldCity { Cap = false, Pop = 1.550, Lat = 45.0748748779297, Lon = 7.66642618179321, Country = "Italy", Name = "Torino" },
            new WorldCity { Cap = false, Pop = 2.012, Lat = 44.924186706543, Lon = -93.3077926635742, Country = "US", Name = "Minneapolis" },
            new WorldCity { Cap = false, Pop = 0.640, Lat = 44.8414726257324, Lon = -0.599498748779297, Country = "France", Name = "Bordeaux" },
            new WorldCity { Cap = true,  Pop = 1.400, Lat = 44.7996826171875, Lon = 20.4125556945801, Country = "Serbia", Name = "Beograd" },
            new WorldCity { Cap = true,  Pop = 2.250, Lat = 44.4304847717285, Lon = 26.1229763031006, Country = "Romania", Name = "Bucuresti" },
            new WorldCity { Cap = false, Pop = 1.740, Lat = 43.8813171386719, Lon = 125.312652587891, Country = "China", Name = "Changchung" },
            new WorldCity { Cap = false, Pop = 1.170, Lat = 43.8502159118652, Lon = 126.56706237793, Country = "China", Name = "Jilin" },
            new WorldCity { Cap = false, Pop = 1.040, Lat = 43.7826652526855, Lon = 87.5865173339844, Country = "China", Name = "Urumqi" },
            new WorldCity { Cap = false, Pop = 0.640, Lat = 43.7815742492676, Lon = 11.207745552063, Country = "Italy", Name = "Firenze" },
            new WorldCity { Cap = false, Pop = 3.427, Lat = 43.7207679748535, Lon = -79.4126358032227, Country = "Canada", Name = "Toronto" },
            new WorldCity { Cap = false, Pop = 0.541, Lat = 43.5999603271484, Lon = 1.43798303604126, Country = "France", Name = "Toulouse" },
            new WorldCity { Cap = false, Pop = 0.985, Lat = 43.2821578979492, Lon = -2.97378325462341, Country = "Spain", Name = "Bilbao" },
            new WorldCity { Cap = true,  Pop = 1.190, Lat = 43.2550621032715, Lon = 76.9126281738281, Country = "Kazakhstan", Name = "Almaty" },
            new WorldCity { Cap = false, Pop = 0.816, Lat = 43.2104644775391, Lon = -77.635612487793, Country = "US", Name = "Rochester" },
            new WorldCity { Cap = false, Pop = 1.375, Lat = 43.0679473876953, Lon = -87.9907379150391, Country = "US", Name = "Milwaukee" },
            new WorldCity { Cap = false, Pop = 1.900, Lat = 43.0552520751953, Lon = 141.345474243164, Country = "Japan", Name = "Sapporo" },
            new WorldCity { Cap = false, Pop = 1.483, Lat = 42.8986625671387, Lon = -78.8484344482422, Country = "US", Name = "Buffalo" },
            new WorldCity { Cap = true,  Pop = 1.205, Lat = 42.7072639465332, Lon = 23.3318710327148, Country = "Bulgaria", Name = "Sofia" },
            new WorldCity { Cap = false, Pop = 4.692, Lat = 42.3943138122559, Lon = -83.0789260864258, Country = "US", Name = "Detroit" },
            new WorldCity { Cap = false, Pop = 3.972, Lat = 42.3752975463867, Lon = -71.1025848388672, Country = "US", Name = "Boston" },
            new WorldCity { Cap = false, Pop = 1.270, Lat = 41.8591575622559, Lon = 123.905570983887, Country = "China", Name = "Fushun" },
            new WorldCity { Cap = false, Pop = 7.717, Lat = 41.826545715332, Lon = -87.6413040161133, Country = "US", Name = "Chicago" },
            new WorldCity { Cap = false, Pop = 3.840, Lat = 41.8021621704102, Lon = 123.383056640625, Country = "China", Name = "Shenyang" },
            new WorldCity { Cap = true,  Pop = 1.460, Lat = 41.721809387207, Lon = 44.7831268310547, Country = "Georgia", Name = "Tbilisi" },
            new WorldCity { Cap = false, Pop = 0.575, Lat = 41.6512641906738, Lon = -0.878205060958862, Country = "Spain", Name = "Zaragoza" },
            new WorldCity { Cap = false, Pop = 2.218, Lat = 41.3907165527344, Lon = -81.7275085449219, Country = "US", Name = "Cleveland" },
            new WorldCity { Cap = true,  Pop = 0.211, Lat = 41.3316535949707, Lon = 19.8318042755127, Country = "Albania", Name = "Tirane" },
            new WorldCity { Cap = false, Pop = 1.300, Lat = 41.1152458190918, Lon = 122.977012634277, Country = "China", Name = "Anshan" },
            new WorldCity { Cap = false, Pop = 5.750, Lat = 41.0659561157227, Lon = 29.0060691833496, Country = "Turkey", Name = "Istanbul" },
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            new WorldCity { Cap = true,  Pop = 1.005, Lat = 56.8800010681152, Lon = 24.0499992370605, Country = "latvia", Name = "Riga" },
            new WorldCity { Cap = true,  Pop = 3.175, Lat = 41.8800010681152, Lon = 12.5200004577637, Country = "Italy", Name = "Roma" },
            new WorldCity { Cap = false, Pop = 2.050, Lat = -12.6002569198608, Lon = -38.4799995422363, Country = "Brazil", Name = "Salvador" },
            new WorldCity { Cap = false, Pop = 0.848, Lat = 29.6299991607666, Lon = 52.5699996948242, Country = "Iran", Name = "Shiraz" },
            new WorldCity { Cap = true,  Pop = 1.450, Lat = 59.2446327209473, Lon = 18.0842685699463, Country = "Sweden", Name = "Stockholm" },
            new WorldCity { Cap = false, Pop = 2.028, Lat = -7.40000009536743, Lon = 112.684371948242, Country = "Indonesia", Name = "Surabaja" },
            new WorldCity { Cap = false, Pop = 0.657, Lat = 23.1700000762939, Lon = 120.230003356934, Country = "Taiwan", Name = "T`ai-nan" },
            new WorldCity { Cap = false, Pop = 0.595, Lat = 27.9973583221436, Lon = -82.5930252075195, Country = "US", Name = "Tampa" },
            new WorldCity { Cap = true,  Pop = 1.670, Lat = 31.9171981811523, Lon = 34.8568344116211, Country = "Israel", Name = "Tel Aviv-Yafo" },
            new WorldCity { Cap = false, Pop = 0.706, Lat = 40.6300010681152, Lon = 22.7999992370605, Country = "Greece", Name = "Thessaloniki" },
            new WorldCity { Cap = true,  Pop = 2.325, Lat = 41.247932434082, Lon = 69.3498687744141, Country = "Uzbekistan", Name = "Toshkent" },
            new WorldCity { Cap = false, Pop = 0.198, Lat = 34.3437576293945, Lon = 36.0070686340332, Country = "Lebanon", Name = "Tripoli" },
            new WorldCity { Cap = false, Pop = 0.675, Lat = -32.9000015258789, Lon = -71.2993392944336, Country = "Chile", Name = "Valparaiso" },
            new WorldCity { Cap = false, Pop = 1.381, Lat = 49.274299621582, Lon = -122.963066101074, Country = "Canada", Name = "Vancouver" },
            new WorldCity { Cap = false, Pop = 0.648, Lat = 43.1300010681152, Lon = 131.960433959961, Country = "Russia", Name = "Vladivostok" },
            new WorldCity { Cap = false, Pop = 0.017, Lat = -23.1018676757813, Lon = 14.6171045303345, Country = "Namibia", Name = "Walvis Bay" },
            new WorldCity { Cap = true,  Pop = 0.115, Lat = -22.5699996948242, Lon = 17.1000003814697, Country = "Namibia", Name = "Windhoek" },
            new WorldCity { Cap = true,  Pop = 0.350, Lat = -41.2103958129883, Lon = 175.144943237305, Country = "New Zealand", Name = "Wellington" },
            new WorldCity { Cap = false, Pop = 2.077, Lat = 47.5885543823242, Lon = -122.316650390625, Country = "US", Name = "Seattle" },
            new WorldCity { Cap = false, Pop = 2.099, Lat = 32.7614593505859, Lon = -117.125495910645, Country = "US", Name = "San Diego" },
            new WorldCity { Cap = false, Pop = 0.110, Lat = -20.2600002288818, Lon = -69.9132614135742, Country = "Chile", Name = "Iquique" },
            new WorldCity { Cap = true,  Pop = 0.243, Lat = 24.2360076904297, Lon = 54.619270324707, Country = "Untd Arab Em", Name = "Abu Zaby" },
            new WorldCity { Cap = false, Pop = 0.199, Lat = 7.57660102844238, Lon = -72.0054550170898, Country = "Venezuela", Name = "San Cristobal" },
            new WorldCity { Cap = false, Pop = 0.509, Lat = 46.25, Lon = 48, Country = "Russia", Name = "Astrakhan" },
            new WorldCity { Cap = false, Pop = 0.000, Lat = 30.1386032104492, Lon = 9.81835079193115, Country = "Libya", Name = "Ghadamis" },
            new WorldCity { Cap = false, Pop = 0.077, Lat = -31.3051528930664, Lon = -57.7087745666504, Country = "Uruguay", Name = "Salto" },
            new WorldCity { Cap = false, Pop = 0.012, Lat = 62.5206146240234, Lon = -114.061363220215, Country = "Canada", Name = "Yellowknife" },
            new WorldCity { Cap = false, Pop = 0.043, Lat = 19.7148151397705, Lon = -155.067291259766, Country = "US", Name = "Hilo" },
            new WorldCity { Cap = false, Pop = 0.763, Lat = 21.3211765289307, Lon = -157.806182861328, Country = "US", Name = "Honolulu" },
            new WorldCity { Cap = false, Pop = 0.184, Lat = 61.188648223877, Lon = -149.172973632813, Country = "US", Name = "Anchorage" },
            new WorldCity { Cap = false, Pop = 0.040, Lat = 64.8387451171875, Lon = -147.651184082031, Country = "US", Name = "Fairbanks" },
            new WorldCity { Cap = false, Pop = 0.020, Lat = 58.3910064697266, Lon = -134.132476806641, Country = "US", Name = "Juneau" },
            new WorldCity { Cap = false, Pop = 0.629, Lat = 37.30810546875, Lon = -121.847457885742, Country = "US", Name = "San Jose" },
            new WorldCity { Cap = false, Pop = 0.386, Lat = 28.5581398010254, Lon = -105.966636657715, Country = "Mexico", Name = "Chihuaha" },
            new WorldCity { Cap = false, Pop = 0.385, Lat = 19.0096759796143, Lon = -96.0840606689453, Country = "Mexico", Name = "Veracruz" },
            new WorldCity { Cap = false, Pop = 0.154, Lat = 16.9209060668945, Lon = -96.9420394897461, Country = "Mexico", Name = "Oaxaca" },
            new WorldCity { Cap = false, Pop = 0.000, Lat = 78.1999969482422, Lon = 15.6599998474121, Country = "Norway", Name = "longyearbyen" },
            new WorldCity { Cap = true,  Pop = 5.396, Lat = 22.4284057617188, Lon = 114.145706176758, Country = "UK", Name = "Hong Kong" },
            new WorldCity { Cap = false, Pop = 0.775, Lat = 22.3798961639404, Lon = 114.230117797852, Country = "UK", Name = "Kowloon" },
            new WorldCity { Cap = false, Pop = 3.025, Lat = 1.22979354858398, Lon = 104.177116394043, Country = "Singapore", Name = "Singapore" },
            };

            return cities;
        }
    }
}csコピー

using IgniteUI.Blazor.Controls;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;

namespace Infragistics.Samples
{
    public static class WorldUtils
    {
        public static List<List<Point>> CalcPaths(GeoLocation origin, GeoLocation dest)
        {
            int interval = 200;
            var paths = new List<List<Point>>() { new List<Point>() };
            int pathID = 0;
            double distance = WorldUtils.CalcDistance(origin, dest);

            if (distance <= interval)
            {
                paths[pathID].Add(new Point() { X = dest.Lon, Y = dest.Lat });
            }
            else
            {
                GeoLocation current = origin;
                GeoLocation previous = origin;

                for (int dist = interval; dist <= distance; dist += interval)
                {
                    previous = current;

                    paths[pathID].Add(new Point() { X = current.Lon, Y = current.Lat });

                    double bearing = WorldUtils.CalcBearing(current, dest);
                    current = WorldUtils.CalcDestination(current, bearing, interval);

                    if (previous.Lon > 150 && current.Lon < -150)
                    {
                        paths[pathID].Add(new Point() { X = 180, Y = current.Lat });
                        paths.Add(new List<Point>());
                        pathID++;
                        current = new GeoLocation() { Lon = -180, Lat = current.Lat };
                    }
                    else if(previous.Lon < -150 && current.Lon > 150)
                    {
                        paths[pathID].Add(new Point() { X = -180, Y = current.Lat });
                        paths.Add(new List<Point>());
                        pathID++;
                        current = new GeoLocation() { Lon = 180, Lat = current.Lat };
                    }
                }

                paths[pathID].Add(new Point() { X = dest.Lon, Y = dest.Lat });

            }

            return paths;

        }

        public static double CalcBearing(GeoLocation origin, GeoLocation dest)
        {
            origin = WorldUtils.ToRadianLocation(origin);
            dest = WorldUtils.ToRadianLocation(dest);

            double range = (dest.Lon - origin.Lon);

            double y = Math.Sin(range) * Math.Cos(dest.Lat);
            double x = Math.Cos(origin.Lat) * Math.Sin(dest.Lat) - Math.Sin(origin.Lat) * Math.Cos(dest.Lat) * Math.Cos(range);
            double angle = Math.Atan2(y, x);

            return WorldUtils.ToDegreesNormalized(angle);
        }

        public static GeoLocation CalcDestination(GeoLocation origin, double bearing, double distance)
        {
            double radius = 6371.0;

            origin = WorldUtils.ToRadianLocation(origin);
            bearing = WorldUtils.ToRadians(bearing);

            distance = distance / radius;

            double lat = Math.Asin(Math.Sin(origin.Lat) * Math.Cos(distance) +
               Math.Cos(origin.Lat) * Math.Sin(distance) * Math.Cos(bearing));
            double x = Math.Sin(bearing) * Math.Sin(distance) * Math.Cos(origin.Lat);
            double y = Math.Cos(distance) - Math.Sin(origin.Lat) * Math.Sin(origin.Lat);
            double lon = origin.Lon + Math.Atan2(x, y);
            // normalize lon to coordinate between -180º and +180º
            lon = (lon + 3 * Math.PI) % (2 * Math.PI) - Math.PI;

            lon = WorldUtils.ToDegrees(lon);
            lat = WorldUtils.ToDegrees(lat);

            return new GeoLocation() { Lat = lat, Lon = lon };
        }

        public static double CalcDistance(GeoLocation origin, GeoLocation dest)
        {
            origin = WorldUtils.ToRadianLocation(origin);
            dest = WorldUtils.ToRadianLocation(dest);

            double sinProd = Math.Sin(origin.Lat) * Math.Sin(dest.Lat);
            double cosProd = Math.Cos(origin.Lat) * Math.Cos(dest.Lat);
            double lonDelta = (dest.Lon - origin.Lon);

            double angle = Math.Acos(sinProd + cosProd * Math.Cos(lonDelta));
            double distance = angle * 6371.0;
            return distance;
        }

        public static GeoLocation ToRadianLocation(GeoLocation geoPoint)
        {
            double x = WorldUtils.ToRadians(geoPoint.Lon);
            double y = WorldUtils.ToRadians(geoPoint.Lat);

            return new GeoLocation() { Lon = x, Lat = y };
        }

        public static double ToRadians(double degrees)
        {
            return degrees * Math.PI / 180;
        }

        public static double ToDegrees(double radians)
        {
            return (radians * 180.0 / Math.PI);
        }

        public static double ToDegreesNormalized(double radians)
        {
            double degrees = WorldUtils.ToDegrees(radians);
            degrees = (degrees + 360) % 360;
            return degrees;
        }

        public static string ToStringLat(double latitude)
        {
            string str = Math.Abs(latitude) + "°";
            return latitude > 0 ? str + "N" : str + "S";
        }

        public static string ToStringLon(double coordinate)
        {
            double val = Math.Abs(coordinate);
            string str = val.ToString();
            return coordinate > 0 ? str + "°E" : str + "°W";
        }

        public static string ToStringAbbr(double value)
        {
            if (value > 1000000000000)
            {
                return (value / 1000000000000).ToString("N1") + " T";
        }
            else if (value > 1000000000)
            {
                return (value / 1000000000).ToString("N1") + " B";
          }
            else if (value > 1000000)
            {
                return (value / 1000000).ToString("N1") + " M";
          }
            else if (value > 1000)
            {
                return (value / 1000).ToString("N1") + " K";
          }
            return value.ToString("N0");
        }

        public static double GetLongitude(GeoLocation location)
        {
            return location.Lon;
        }

        public static double GetLatitude(GeoLocation location)
        {
            return location.Lat;
        }

        public static Rect GetBounds(List<GeoLocation> locations)
        {
            double minLat = 90;
            double maxLat = -90;
            double minLon = 180;
            double maxLon = -180;

            foreach(GeoLocation gl in locations)
            {
                double curLon = WorldUtils.GetLongitude(gl);
                double curLat = WorldUtils.GetLatitude(gl);

                if (!double.IsNaN(curLon))
                {
                    minLon = Math.Min(minLon, curLon);
                    maxLon = Math.Max(maxLon, curLon);
                }

                if (!double.IsNaN(curLat))
                {
                    minLat = Math.Min(minLat, curLat);
                    maxLat = Math.Min(maxLat, curLat);
                }
            }

            Rect geoBounds = new Rect(minLon, minLat, Math.Abs(maxLon - minLon), Math.Abs(maxLat - minLat));
            return geoBounds;
        }

        public static List<Point> GetNightShapes()
        {
            List<Point> line = new List<Point>();

            for (int lon = -180; lon <= 180; lon += 1)
            {
                double x = lon;
                double y = 75 * Math.Cos(lon * Math.PI / 180);
                line.Add(new Point(x, y));
            }

            return line;
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<div class="container vertical">
    <div class="container vertical">
        <IgbGeographicMap Height="100%" Width="100%" Zoomable="true">
            <IgbGeographicPolylineSeries DataSource="Flights" ShapeMemberPath="Points"
                                      ShapeStroke="rgba(196, 14, 14, 0.2)" ShapeStrokeThickness="4" />
            <IgbGeographicPolylineSeries DataSource="Coordinates" ShapeMemberPath="Points"
                                      ShapeStroke="Gray" ShapeStrokeThickness="1">
            </IgbGeographicPolylineSeries>
            <IgbGeographicSymbolSeries DataSource="Airports" LatitudeMemberPath="Lat"
                                    LongitudeMemberPath="Lon" MarkerType="MarkerType.Circle"
                                    MarkerBrush="#AAD3DF" MarkerOutline="Black" Thickness="1" />
        </IgbGeographicMap>
    </div>
</div>

@code {

    private List<WorldCity> Airports;
    private List<FlightInfo> Flights;
    private List<CoordinateLine> Coordinates;

    protected override void OnInitialized()
    {

        Airports = WorldConnections.GetAirports();
        Flights = WorldConnections.GetFlights();
        Coordinates = WorldConnections.GetGridlines();
    }
}razorコピー

/* 
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/cssコピー

Like this sample? Get access to our complete Ignite UI for Blazor toolkit and start building your own apps in minutes. Download it for free.

Este tema lo lleva paso a paso para mostrar múltiples series geográficas que trazarán los siguientes datos geoespaciales:

• IgbGeographicSymbolSeries: muestra la ubicación de los principales aeropuertos
• IgbGeographicPolylineSeries: muestra vuelos entre aeropuertos
• IgbGeographicPolylineSeries – displays gridlines of major coordinates

Puede utilizar series geográficas en esta u otras combinaciones para trazar los datos deseados.

最速のデータ グリッド、高性能なチャート、すぐに使用できる機能のフルセットなどを含む 60 以上の再利用可能なコンポーネント を使用して、最新の Web エクスペリエンスを構築します。

無料で試してみる

Creating Data Sources

Cree fuentes de datos para todas las series geográficas que desee mostrar en la Ignite UI for Blazor. Por ejemplo, puede utilizar el script WorldConnections.

@code {

    public List<WorldCity> Airports;
    public List<FlightInfo> Flights;
    public List<CoordinateLine> Coordinates;

    protected override void OnInitialized()
    {
        Airports = WorldConnections.GetAirports();
        Flights = WorldConnections.GetFlights();
        Coordinates = WorldConnections.GetGridlines();
    }
}
razor

Overlaying Flights

Cree el primer objeto IgbGeographicPolylineSeries con conexiones de vuelo entre los principales aeropuertos y agréguelo a la colección Series del mapa Ignite UI for Blazor.

<IgbGeographicMap Height="100%" Width="100%" Zoomable="true">
    <IgbGeographicPolylineSeries DataSource="Flights" ShapeMemberPath="Points"
        ShapeStroke="rgba(196, 14, 14, 0.05)" ShapeStrokeThickness="4" />
</IgbGeographicMap>
razor

Overlaying Gridlines

Cree un segundo objeto IgbGeographicPolylineSeries con líneas de cuadrícula geográficas y agréguelo a la colección Series del mapa Ignite UI for Blazor.

<IgbGeographicMap Height="100%" Width="100%" Zoomable="true">
    <IgbGeographicPolylineSeries DataSource="Coordinates" ShapeMemberPath="Points"
        ShapeStroke="Gray" ShapeStrokeThickness="1" />
</IgbGeographicMap>
razor

Overlaying Airports

Cree un objeto IgbGeographicSymbolSeries con puntos de aeropuerto y agréguelo a la colección Series del mapa geográfico Ignite UI for Blazor.

<IgbGeographicMap Height="100%" Width="100%" Zoomable="true">
    <IgbGeographicSymbolSeries DataSource="Airports" LatitudeMemberPath="Lat"
        LongitudeMemberPath="Lon" MarkerType="MarkerType.Circle"
        MarkerBrush="#AAD3DF" MarkerOutline="Black" Thickness="1" />
</IgbGeographicMap>
razor

Summary

Para su comodidad, todos los fragmentos de código anteriores se combinan en un bloque de código a continuación que puede copiar fácilmente a su proyecto.

@using IgniteUI.Blazor.Controls


<IgbGeographicMap Height="100%" Width="100%" Zoomable="true">
    <IgbGeographicPolylineSeries DataSource="Flights" ShapeMemberPath="Points"
        ShapeStroke="rgba(196, 14, 14, 0.05)" ShapeStrokeThickness="4" />
    <IgbGeographicPolylineSeries DataSource="Coordinates" ShapeMemberPath="Points"
        ShapeStroke="Gray" ShapeStrokeThickness="1">
    </IgbGeographicPolylineSeries>
    <IgbGeographicSymbolSeries DataSource="Airports" LatitudeMemberPath="Lat"
        LongitudeMemberPath="Lon" MarkerType="MarkerType.Circle"
        MarkerBrush="#AAD3DF" MarkerOutline="Black" Thickness="1" />
</IgbGeographicMap>

@code {

    private List<WorldCity> Airports;
    private List<FlightInfo> Flights;
    private List<CoordinateLine> Coordinates;

    protected override void OnInitialized()
    {
        Airports = WorldConnections.GetAirports();
        Flights = WorldConnections.GetFlights();
        Coordinates = WorldConnections.GetGridlines();
    }
}
razor

API References

• IgbGeographicPolylineSeries
• IgbGeographicSymbolSeries