做城市热力图的时候无意浏览到mapv强大的功能。比如地图上路线的汇聚效果，如下
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title> <style type="text/css">
html, body { overflow: hidden;
} #map {
width: 500px;
height: 500px;
margin:0 auto;
}
</style>
</head>
<body> <div id="map"></div>
<canvas id="canvas"></canvas> <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=1XjLLEhZhQNUzd93EjU5nOGQ"></script>
<script type="text/javascript" src="../build/mapv.js"></script> <script type="text/javascript"> // 百度地图API功能
var map = new BMap.Map("map", {
enableMapClick: false
}); // 创建Map实例
map.centerAndZoom(new BMap.Point(108.154518,36.643346), 5); // 初始化地图,设置中心点坐标和地图级别
map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放 // 地图自定义样式
map.setMapStyle({
styleJson: [{
"featureType": "water",
"elementType": "all",
"stylers": {
"color": "#044161"
}
}, {
"featureType": "land",
"elementType": "all",
"stylers": {
"color": "#091934"
}
}, {
"featureType": "boundary",
"elementType": "geometry",
"stylers": {
"color": "#064f85"
}
}, {
"featureType": "railway",
"elementType": "all",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "highway",
"elementType": "geometry",
"stylers": {
"color": "#004981"
}
}, {
"featureType": "highway",
"elementType": "geometry.fill",
"stylers": {
"color": "#005b96",
"lightness": 1
}
}, {
"featureType": "highway",
"elementType": "labels",
"stylers": {
"visibility": "on"
}
}, {
"featureType": "arterial",
"elementType": "geometry",
"stylers": {
"color": "#004981",
"lightness": -39
}
}, {
"featureType": "arterial",
"elementType": "geometry.fill",
"stylers": {
"color": "#00508b"
}
}, {
"featureType": "poi",
"elementType": "all",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "green",
"elementType": "all",
"stylers": {
"color": "#056197",
"visibility": "off"
}
}, {
"featureType": "subway",
"elementType": "all",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "manmade",
"elementType": "all",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "local",
"elementType": "all",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "arterial",
"elementType": "labels",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "boundary",
"elementType": "geometry.fill",
"stylers": {
"color": "#029fd4"
}
}, {
"featureType": "building",
"elementType": "all",
"stylers": {
"color": "#1a5787"
}
}, {
"featureType": "label",
"elementType": "all",
"stylers": {
"visibility": "off"
}
}, {
"featureType": "poi",
"elementType": "labels.text.fill",
"stylers": {
"color": "#ffffff"
}
}, {
"featureType": "poi",
"elementType": "labels.text.stroke",
"stylers": {
"color": "#1e1c1c"
}
}, {
"featureType": "administrative",
"elementType": "labels",
"stylers": {
"visibility": "off"
}
},{
"featureType": "road",
"elementType": "labels",
"stylers": {
"visibility": "off"
}
}]
}); var randomCount = 500; var node_data = {
"0":{"x":108.154518, "y":36.643346},
"1":{"x":121.485124, "y":31.235317},
}; var edge_data = [
{"source":"1", "target":"0"}
] var citys = ["北京","天津","上海","重庆","石家庄","太原","呼和浩特","哈尔滨","长春","沈阳","济南","南京","合肥","杭州","南昌","福州","郑州","武汉","长沙","广州","南宁","西安","银川","兰州","西宁","乌鲁木齐","成都","贵阳","昆明","拉萨","海口"]; // 构造数据
for (var i = 1; i < randomCount; i++) {
var cityCenter = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
node_data[i] = {
x: cityCenter.lng - 5 + Math.random() * 10,
y: cityCenter.lat - 5 + Math.random() * 10,
}
edge_data.push(
{"source": ~~(i * Math.random()), "target": '0'}
);
} var fbundling = mapv.utilForceEdgeBundling()
.nodes(node_data)
.edges(edge_data); var results = fbundling(); var data = [];
var timeData = []; for (var i = 0; i < results.length; i++) {
var line = results[i];
var coordinates = [];
for (var j = 0; j < line.length; j++) {
coordinates.push([line[j].x, line[j].y]);
timeData.push({
geometry: {
type: 'Point',
coordinates: [line[j].x, line[j].y]
},
count: 1,
time: j
});
}
data.push({
geometry: {
type: 'LineString',
coordinates: coordinates
}
});
} var dataSet = new mapv.DataSet(data); var options = {
strokeStyle: 'rgba(55, 50, 250, 0.3)',
globalCompositeOperation: 'lighter',
shadowColor: 'rgba(55, 50, 250, 0.5)',
shadowBlur: 10,
methods: {
click: function (item) {
}
},
lineWidth: 1.0,
draw: 'simple'
} var mapvLayer = new mapv.baiduMapLayer(map, dataSet, options); var dataSet = new mapv.DataSet(timeData); var options = {
fillStyle: 'rgba(255, 250, 250, 0.9)',
globalCompositeOperation: 'lighter',
size: 1.5,
animation: {
type: 'time',
steps: 100,
trails: 1,
duration: 5
},
draw: 'simple'
} var mapvLayer = new mapv.baiduMapLayer(map, dataSet, options); </script> </body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title> <style type="text/css">
html, body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
} #map {
width: 500px;
height: 500px;
margin: 0 auto;
}
</style>
</head>
<body> <div id="map"></div>
<canvas id="canvas"></canvas> <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=1XjLLEhZhQNUzd93EjU5nOGQ"></script>
<script type="text/javascript" src="../build/mapv.js"></script> <script type="text/javascript"> // 百度地图API功能
var map = new BMap.Map("map", {
enableMapClick: false
}); // 创建Map实例
map.centerAndZoom(new BMap.Point(105.403119, 38.028658), 6); // 初始化地图,设置中心点坐标和地图级别
map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放 map.setMapStyle({
style: 'midnight'
}); var randomCount = 1000; var data = []; var citys = ["北京","天津","上海","重庆","石家庄","太原","呼和浩特","哈尔滨","长春","沈阳","济南","南京","合肥","杭州","南昌","福州","郑州","武汉","长沙","广州","南宁","西安","银川","兰州","西宁","乌鲁木齐","成都","贵阳","昆明","拉萨","海口"]; // 构造数据
while (randomCount--) {
var cityCenter = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
data.push({
geometry: {
type: 'Point',
coordinates: [cityCenter.lng - 2 + Math.random() * 4, cityCenter.lat - 2 + Math.random() * 4]
},
count: 30 * Math.random(),
time: 100 * Math.random()
});
} var dataSet = new mapv.DataSet(data); var options = {
size: 13,
gradient: { 0.25: "rgb(0,0,255)", 0.55: "rgb(0,255,0)", 0.85: "yellow", 1.0: "rgb(255,0,0)"},
max: 60,
animation: {
type: 'time',
stepsRange: {
start: 0,
end: 100
},
steps: 100,
trails: 10,
duration: 5,
},
draw: 'heatmap'
} var mapvLayer = new mapv.baiduMapLayer(map, dataSet, options);
</script> </body>
</html>
<!DOCTYPE html>
<html> <head>
<meta charset="UTF-8">
<title></title> <style type="text/css">
#canvas {
border: 5px dotted red;
width: 800px;
height: 800px;
}
</style>
</head> <body> <div id="canvas"></div>
<!-- data -->
<script type="text/javascript" src="data/3d-simple.js"></script>
<!-- library -->
<script type="text/javascript" src="js/three.min.js"></script>
<script type="text/javascript" src="js/OrbitControls.js"></script>
<script type="text/javascript" src="../build/mapv.js"></script>
<script type="text/javascript">
var canvas = document.querySelector('#canvas');
var map = new mapv.x(canvas, {
center: {
lng: 105.403119,
lat: 38.028658
},
grid: {
size: 1,
}
});
</script> </body> </html>