製品版のみの機能
マップ - ポリライン シリーズ
このサンプルは、マップ コントロールで地理ポリライン シリーズを使用し、北アメリカの主要な空港の間のフライトを表示します。
このサンプルは CTP 機能を使用しています。製品版では、API や動作が変更される場合があります。
このサンプルは、より大きい画面サイズのためにデザインされました。
モバイル デバイスで画面を回転、フル サイズ表示、またはその他のデバイスにメールで送信します。
このサンプルは、マップ コントロールで地理ポリライン シリーズを使用し、北アメリカの主要な空港の間のフライトを表示します。
コード ビュー
クリップボードへコピー
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<!-- Ignite UI for jQuery Required Combined CSS Files -->
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet" />
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/structure/infragistics.css" rel="stylesheet" />
<script src="http://ajax.aspnetcdn.com/ajax/modernizr/modernizr-2.8.3.js"></script>
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
<!-- Ignite UI for jQuery Required Combined JavaScript Files -->
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.core.js"></script>
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.dv.js"></script>
<script src="/js/map-helper.js" type="text/javascript" ></script>
<style>
#tooltipTable
{
font-family: Verdana, Arial, Helvetica, sans-serif;
width: 100%;
border-collapse: collapse;
}
#tooltipTable td, #tooltipTable th
{
font-size: 9px;
border: 1px solid #5da7df;
padding: 3px 7px 2px 7px;
}
#tooltipTable th
{
font-weight: bold;
font-size: 11px;
text-align: left;
padding-top: 5px;
padding-bottom: 4px;
background-color: #5da7df;
color: #ffffff;
}
</style>
<script id="geoSymbolTooltip" type="text/x-jquery-tmpl">
<table id="tooltipTable" >
<tr><th colspan="2">${item.City}, ${item.Country}</th></tr>
<tr>
<td>人口:</td>
<td>${item.Population}</td>
</tr>
</table>
</script>
</head>
<body>
<script type="text/javascript">
$(function () {
// load geo-locations from shapefile and simplify data structure
var worldAirports = [];
var worldConnections = [];
var worldCities = [];
var points = [];
var shapeDataSource = new $.ig.ShapeDataSource({
shapefileSource: "/data-files/shapes/world_cities.shp",
databaseSource: "/data-files/shapes/world_cities.dbf",
transformRecord: function (rec) {
var pointX = rec.points.item(0).item(0).x();
var pointY = rec.points.item(0).item(0).y();
var city = rec.fields.item("NAME");
var country = rec.fields.item("COUNTRY");
var population = rec.fields.item("POPULATION");
if (population > 0) {
points.push({
Latitude: pointY, Longitude: pointX,
City: city, Country: country,
Population: population
});
}
},
// process data and create map when finished loading shapefile
callback: function () {
worldCities = points;
generateConnections();
createMap();
}
});
shapeDataSource.dataBind();
// generate flight paths and airport connections
function generateConnections() {
var count = worldCities.length;
var airports = [];
var flights = [];
var minDistance = 200;
var maxDistance = 7000;
var maxConnections = 300;
var total = 0;
for (var i = 0; i < count; i++) {
var connections = [];
var origin = worldCities[i];
for (var ii = 0; ii < count; ii++)
{
var dest = worldCities[ii];
if (origin.City != dest.City &&
origin.Population > dest.Population &&
origin.Country == "US" &&
dest.Country == "US") {
var hasConnection = false;
var distance = calcGeoDistance(origin, dest);
if (distance > minDistance &&
distance < maxDistance) {
if (origin.Population > 3000000 &&
dest.Population > 500000 && distance < maxDistance) {
hasConnection = true;
}
// optional code to add more connections
//if (origin.Population > 1000000 &&
// dest.Population > 250000 && distance < maxDistance * 0.75) {
// hasConnection = true;
//}
//if (origin.Population > 500000 &&
// dest.Population > 100000 && distance < maxDistance * 0.5) {
// hasConnection = true;
//}
}
if (hasConnection) {
var path = [];
path = calcGeoPath(origin, dest);
connections.push(path);
airports.push(dest);
total++;
}
}
}
if (connections.length > 0) {
flights.push({ city: origin, points: connections });
airports.push(origin);
}
if (total > maxConnections) break;
}
worldConnections = flights;
worldAirports = airports;
}
// calculate geo-path between two locations
function calcGeoPath(origin, dest) {
var interval = 200;
var path = [];
var distance = calcGeoDistance(origin, dest);
if (distance <= interval) {
path.push({ x: origin.Longitude, y: origin.Latitude });
path.push({ x: dest.Longitude, y: dest.Latitude });
} else {
var current = origin;
for (var dist = interval; dist <= distance; dist += interval)
{
path.push({ x: current.Longitude, y: current.Latitude });
var bearing = calcBearing(current, dest);
current = calcDestination(current, bearing, interval);
}
path.push({ x: dest.Longitude, y: dest.Latitude });
}
return path;
}
// calculate bearing angle between two locations
function calcBearing(origin, dest)
{
origin = toRadianLocation(origin);
dest = toRadianLocation(dest);
//var dLat = (dest.Latitude - origin.Latitude);
var dLon = (dest.Longitude - origin.Longitude);
var y = Math.sin(dLon) * Math.cos(dest.Latitude);
var x = Math.cos(origin.Latitude) * Math.sin(dest.Latitude) -
Math.sin(origin.Latitude) * Math.cos(dest.Latitude) * Math.cos(dLon);
var angle = Math.atan2(y, x);
return toDegreesNormalized(angle);
}
// calculate destination for origin location and travel distance
function calcDestination(origin, bearing, distance) {
var radius = 6371.0;
origin = toRadianLocation(origin);
bearing = toRadians(bearing);
distance = distance / radius; // angular distance in radians
var latitude = Math.asin(Math.sin(origin.Latitude) * Math.cos(distance) +
Math.cos(origin.Latitude) * Math.sin(distance) * Math.cos(bearing));
var x = Math.sin(bearing) * Math.sin(distance) * Math.cos(origin.Latitude);
var y = Math.cos(distance) - Math.sin(origin.Latitude) * Math.sin(origin.Latitude);
var longitude = origin.Longitude + Math.atan2(x, y);
longitude = (longitude + 3 * Math.PI) % (2 * Math.PI) - Math.PI; // normalize to -180..+180º
longitude = toDegrees(longitude);
latitude = toDegrees(latitude);
return { Longitude: longitude, Latitude: latitude };
}
// calculate distance between two locations
function calcGeoDistance(origin, dest) {
origin = toRadianLocation(origin);
dest = toRadianLocation(dest);
var sinProd = Math.sin(origin.Latitude) * Math.sin(dest.Latitude);
var cosProd = Math.cos(origin.Latitude) * Math.cos(dest.Latitude);
var dLon = (dest.Longitude - origin.Longitude);
var angle = Math.acos(sinProd + cosProd * Math.cos(dLon));
var distance = angle * 6371.0;
return distance; // * 6371.0; // in km
}
function toRadianLocation(geoPoint) {
var longitude = toRadians(geoPoint.Longitude);
var latitude = toRadians(geoPoint.Latitude);
return { Longitude: longitude, Latitude: latitude };
}
function toRadians(degrees)
{
return degrees * Math.PI / 180;
}
function toDegrees(radians) {
return (radians * 180.0 / Math.PI);
}
function toDegreesNormalized(radians)
{
var degrees = toDegrees(radians);
degrees = (degrees + 360) % 360;
return degrees;
}
function createMap() {
$("#map").igMap({
width: "700px",
height: "500px",
overviewPlusDetailPaneVisibility: "visible",
overviewPlusDetailPaneBackgroundImageUri: "/images/samples/maps/world.png",
windowRect: {
left: 0.180,
top: 0.3143,
width: 0.180,
height: 0.180
},
series: [{
type: "geographicPolyline",
name: "worldConnections",
shapeMemberPath: "points",
dataSource: worldConnections,
shapeFilterResolution: 5.0,
outline: "rgba(20,20,20,0.5)",
thickness: 0.75,
showTooltip: false,
},
{
type: "geographicSymbol",
name: "worldAirports",
dataSource: worldAirports,
longitudeMemberPath: "Longitude",
latitudeMemberPath: "Latitude",
markerType: "circle",
markerCollisionAvoidance: "fade",
markerOutline: "rgba(90,160,220,0.9)",
markerBrush: "rgba(90,160,220,0.7)",
showTooltip: true,
tooltipTemplate: "geoSymbolTooltip",
}
]
});
$("#map").find(".ui-widget-content").append("<span class='copyright-notice'><a href='https://www.openstreetmap.org/copyright'>© OpenStreetMap contributors</a></span>");
};
});
</script>
<div>
<div id="map"></div>
</div>
</body>
</html>