点聚合
html, body, #container {
height: 100%;
width: 100%;
}
.input-card {
width: 25rem;
}
.input-card .btn {
width: 7rem;
margin-right: .7rem;
}
.input-card .btn:last-child {
margin-right: 0;
}
聚合点效果切换
var cluster, markers = [];
var map = new AMap.Map("container", {
resizeEnable: true,
center: [105, 34],
zoom: 4
});
for (var i = 0; i < points.length; i += 1) {
markers.push(new AMap.Marker({
position: points[i]['lnglat'],
content: '
offset: new AMap.Pixel(-15, -15)
}))
}
var count = markers.length;
var _renderClusterMarker = function (context) {
var factor = Math.pow(context.count / count, 1 / 18);
var div = document.createElement('div');
var Hue = 180 - factor * 180;
var bgColor = 'hsla(' + Hue + ',100%,50%,0.7)';
var fontColor = 'hsla(' + Hue + ',100%,20%,1)';
var borderColor = 'hsla(' + Hue + ',100%,40%,1)';
var shadowColor = 'hsla(' + Hue + ',100%,50%,1)';
div.style.backgroundColor = bgColor;
var size = Math.round(30 + Math.pow(context.count / count, 1 / 5) * 20);
div.style.width = div.style.height = size + 'px';
div.style.border = 'solid 1px ' + borderColor;
div.style.borderRadius = size / 2 + 'px';
div.style.boxShadow = '0 0 1px ' + shadowColor;
div.innerHTML = context.count;
div.style.lineHeight = size + 'px';
div.style.color = fontColor;
div.style.fontSize = '14px';
div.style.textAlign = 'center';
context.marker.setOffset(new AMap.Pixel(-size / 2, -size / 2));
context.marker.setContent(div)
};
addCluster(2);
function addCluster(tag) {
if (cluster) {
cluster.setMap(null);
}
if (tag == 2) {//完全自定义
cluster = new AMap.MarkerClusterer(map, markers, {
gridSize: 80,
renderClusterMarker: _renderClusterMarker
});
} else if (tag == 1) {//自定义图标
var sts = [{
url: "/jsapi_demos/static/images/blue.png",
size: new AMap.Size(32, 32),
offset: new AMap.Pixel(-16, -16)
}, {
url: "/jsapi_demos/static/images/green.png",
size: new AMap.Size(32, 32),
offset: new AMap.Pixel(-16, -16)
}, {
url: "/jsapi_demos/static/images/orange.png",
size: new AMap.Size(36, 36),
offset: new AMap.Pixel(-18, -18)
}, {
url: "/jsapi_demos/static/images/red.png",
size: new AMap.Size(48, 48),
offset: new AMap.Pixel(-24, -24)
}, {
url: "/jsapi_demos/static/images/darkRed.png",
size: new AMap.Size(48, 48),
offset: new AMap.Pixel(-24, -24)
}];
cluster = new AMap.MarkerClusterer(map, markers, {
styles: sts,
gridSize: 80
});
} else {//默认样式
cluster = new AMap.MarkerClusterer(map, markers, {gridSize: 80});
}
}
