矢印線の種類を設定する

実行結果

ソースコードと解説

矢印線を描画するにはZDC.ArrowPolylineクラスを利用します。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="//test.api.its-mo.com/v3/loader?key=JSZddc5111626c8|Zo4wz&api=zdcmap.js,shape.js,userwidget.js,control.js&enc=UTF8" type="text/javascript"></script>
<!-- 取得したarrow_polyline.jsを別途インクルードする -->
<script src="arrow_polyline-1.0.js"></script>

<script type="text/javascript">
    var map, arrowPl;
    function loadMap() {
        var lat = 35.711568056, lon = 139.725961111;
        map = new ZDC.Map(
            document.getElementById('ZMap'),
            {
                latlon: new ZDC.LatLon(lat, lon),
                zoom: 6,
                mapType: ZDC.MAPTYPE_HIGHRES_LV18
            }
        );
        drawPolylineWithArrow();

        map.addWidget(new ZDC.ScaleBar());
        map.addWidget(new ZDC.Control());
    }

    function drawPolylineWithArrow () {
        if (arrowPl) {
            arrowPl.remove();
        }
        var latlons = [],
            type;
        latlons.push(new ZDC.LatLon(35.66, 139.65));
        latlons.push(new ZDC.LatLon(35.70, 139.769338889));
        latlons.push(new ZDC.LatLon(35.798341389, 139.769338889));
        var typeId = document.getElementById("mySelect").value;
        switch (typeId) {
            case "0":
                type = ZDC.ARROW_TRIANGLE;
                break;
            case "1":
                type = ZDC.ARROW_THIN;
                break;
            case "2":
                type = ZDC.ARROW_LINEAR;
                break;
            case "3":
                type = ZDC.ARROW_FAT;
                break;
            default:
                type = ZDC.ARROW_TRIANGLE;
                break;
        }
        arrowPl = new ZDC.ArrowPolyline(
            map,
            latlons,
            {
                arrowType: type
            }
        );
    }

</script>
</head>

<body onload="loadMap();">
    <div id="ZMap" style="border:1px solid #777777; width:750px; height:500px; top:0px; left:20px; position:absolute;"></div>

    <div style="top:450px; left:36px; position:absolute;">
        <select id="mySelect" onchange="drawPolylineWithArrow()">
            <option value="0" selected="true">ZDC.ARROW_TRIANGLE</option>
            <option value="1">ZDC.ARROW_THIN</option>
            <option value="2">ZDC.ARROW_LINEAR</option>
            <option value="3">ZDC.ARROW_FAT</option>
        </select>
    </div>
</body>
</html>