Jaa

Simple Static Overlay

  • Artikkeli

Note

Bing Maps Web Control SDK retirement

Bing Maps Web Control SDK is deprecated and will be retired. Free (Basic) account customers can continue to use Bing Maps Web Control SDK until June 30th, 2025. Enterprise account customers can continue to use Bing Maps Web Control SDK until June 30th, 2028. To avoid service disruptions, all implementations using Bing Maps Web Control SDK will need to be updated to use Azure Maps Web SDK by the retirement date that applies to your Bing Maps for Enterprise account type. For detailed migration guidance, see Migrate from Bing Maps Web Control SDK and Migrate Bing Maps Enterprise applications to Azure Maps with GitHub Copilot.

Azure Maps is Microsoft's next-generation maps and geospatial services for developers. Azure Maps has many of the same features as Bing Maps for Enterprise, and more. To get started with Azure Maps, create a free Azure subscription and an Azure Maps account. For more information about azure Maps, see Azure Maps Documentation. For migration guidance, see Bing Maps Migration Overview.

This example creates a simple overlay that consists of 4 buttons that allow you to pan the map in different directions.

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8" />
	<script type='text/javascript'>
    var map;

    function GetMap()
    {
        map = new Microsoft.Maps.Map('#myMap', {});

        //Define a custom overlay class that inherts from the CustomOverlay class.
        PanningOverlay.prototype = new Microsoft.Maps.CustomOverlay({ beneathLabels : false });

        //Define a constructor for the custom overlay class.
        function PanningOverlay() {
            this.panUpBtn = document.createElement('input');
            this.panUpBtn.type = 'button';
            this.panUpBtn.value = '˄';
            this.panUpBtn.onclick = function () {
                panMap('up');
            };

            this.panDownBtn = document.createElement('input');
            this.panDownBtn.type = 'button';
            this.panDownBtn.value = '˅';
            this.panDownBtn.onclick = function () {
                panMap('down');
            };

            this.panLeftBtn = document.createElement('input');
            this.panLeftBtn.type = 'button';
            this.panLeftBtn.value = '<';
            this.panLeftBtn.onclick = function () {
                panMap('left');
            };

            this.panRightBtn = document.createElement('input');
            this.panRightBtn.type = 'button';
            this.panRightBtn.value = '>';
            this.panRightBtn.onclick = function () {
                panMap('right');
            };
        }

        //Implement the onAdd method to set up DOM elements, and use setHtmlElement to bind it with the overlay.
        PanningOverlay.prototype.onAdd = function () {
            //Create a div that will hold pan buttons.
            var container = document.createElement('div');
            container.appendChild(this.panUpBtn);
            container.appendChild(this.panDownBtn);
            container.appendChild(this.panLeftBtn);
            container.appendChild(this.panRightBtn);
            container.style.position = 'absolute';
            container.style.top = '10px';
            container.style.left = '10px';
            this.setHtmlElement(container);
        };

        //Implement the new custom overlay class.
        var overlay = new PanningOverlay();

        //Add the custom overlay to the map.
        map.layers.insert(overlay);
    }

    function panMap(dir) {
        var dx = 0, dy = 0;
        switch (dir) {
            case 'up':
                dy = -30;
                break;
            case 'down':
                dy = 30;
                break;
            case 'left':
                dx = -30;
                break;
            case 'right':
                dx = 30;
                break;
        }

        var cp = map.tryLocationToPixel(map.getCenter());
        cp.x += dx;
        cp.y += dy;

        map.setView({ center: map.tryPixelToLocation(cp) });
    }
    </script>
    <script type='text/javascript' src='http://www.bing.com/api/maps/mapcontrol?callback=GetMap&key=[YOUR_BING_MAPS_KEY]' async defer></script>
</head>
<body>
    <div id="myMap" style="position:relative;width:800px;height:600px;"></div>
</body>
</html>

Running this code will display 4 arrow buttons in the top left corner of the map. When pressed they will pan the map by 30 pixels in the specified direction.

BMV8_PanningOverlayExample