echarts 设置地图外边框、地图背景渐变色和地图阴影,增加立体感以及在地图上打点
一、设置地图外边框给地图添加外边框,同时地图中的区域添加细一点的边框。效果图如下:这里涉及两种边框 ,分别在 geo 和 series 种设置 。主要代码如下:option = {backgroundColor: '#000',//画布背景颜色geo: {show: true,map: 'china',label: {show: false},roam:.
一、设置地图外边框
给地图添加外边框,同时地图中的区域添加细一点的边框。效果图如下:
这里涉及两种边框 ,分别在 geo 和 series 种设置 。主要代码如下:
option = {
backgroundColor: '#000',//画布背景颜色
geo: {
show: true,
map: 'china',
label: {
show: false
},
roam: false,
itemStyle: {
normal: {
areaColor: '#000',
borderWidth: 4, //设置外层边框
borderColor:'#f8911b',
},
emphasis: {
show: false,
// areaColor: '#01215c'
}
}
},
series: [
{
type: 'map',
map: 'china',
label: {
show: false
},
roam: false,
itemStyle: {
normal: {
areaColor: '#000',
borderColor: '#a18a3a',
borderWidth: 1
},
emphasis: {
show: false,
areaColor: null
}
},
}
]
}
二、地图背景渐变
需要给地图整体添加渐变色,而不是给让地图中某一块区域进行渐变,效果图如下:
根据 echart 官网 areaColor 配置项,我们可以看出官方提供了 API 来填充地图区域的颜色。不仅支持纯色之外,还支持渐变色和纹理填充。主要代码实现如下:
itemStyle: {
normal: {
areaColor: {
color: {
type: 'linear',
x: 0,
y: 0,
x2: 1,
y2: 1,
colorStops: [{
offset: 0, color: '#24a0fa'
}, {
offset: 1, color: '#15072a'
}],
global: false
}
},
borderColor: '#a18a3a',
borderWidth: 1,
},
emphasis: {
show: false,
areaColor: null
}
},
三、地图阴影,增加立体感
效果图如下:
主要代码如下:
geo: {
itemStyle: {
normal: {
shadowColor: 'rgba(1, 39, 44, 1)',
shadowOffsetX: 0,
shadowOffsetY: 8
}
}
},
四、地图上打点
效果图如下:
主要代码如下:
option = {
...
series: [
{
type: 'scatter',
coordinateSystem: 'geo',
data: convertData(data),
symbolSize: 20,
symbol: 'image://https://pic.ulecdn.com/item/user_0102/desc20190115/1fb19e0cf39aafef_-1x-1.png',
symbolRotate: 35,
label: {
normal: {
formatter: '{b}',
position: 'right',
show: false
},
emphasis: {
show: true
}
},
itemStyle: {
normal: {
color: '#F06C00'
}
}
},
...
]
}
如有需要,请 查看完整代码.
补充:点击地图某个省区域,地图将中国地图重新渲染该省的地图,如何实现这个交互效果呢?
如果我们指明只渲染部分区域的地图的话,我们需要引入 各区域地图 JSON 文件,使用 echarts.registerMap API 注册可用的地图即可。
如何监听地图上的点击事件呢?echarts 中的事件和行为
myChart.on('click', function (params) {
// 控制台打印数据的名称
console.log(params.name);
});
最后一个疑问就是,如何同时获取【地图区域】JSON 文件 和 地图打点数据,这里 JSON 文件放在服务器中,我们也是通过接口请求获取到,详情使用:axios.all()解决并发请求 来解决多个请求都完成后再执行渲染处理的操作。
完整案例:(访问 eacharts 官网案例中运行,即可实现效果图)。
var data = [
{name: '海门', value: 9},
{name: '鄂尔多斯', value: 12},
{name: '招远', value: 12},
{name: '舟山', value: 12},
{name: '齐齐哈尔', value: 14},
{name: '盐城', value: 15},
{name: '赤峰', value: 16},
{name: '青岛', value: 18},
{name: '乳山', value: 18},
{name: '金昌', value: 19},
{name: '泉州', value: 21},
{name: '南通', value: 23},
{name: '拉萨', value: 24},
{name: '云浮', value: 24},
{name: '上海', value: 25},
{name: '攀枝花', value: 25},
{name: '承德', value: 25},
{name: '汕尾', value: 26},
{name: '丹东', value: 27},
{name: '瓦房店', value: 30},
{name: '延安', value: 38},
{name: '咸阳', value: 43},
{name: '南昌', value: 54},
{name: '柳州', value: 54},
{name: '三亚', value: 54},
{name: '泸州', value: 57},
{name: '克拉玛依', value: 72}
];
var geoCoordMap = {
'海门':[121.15,31.89],
'鄂尔多斯':[109.781327,39.608266],
'招远':[120.38,37.35],
'舟山':[122.207216,29.985295],
'齐齐哈尔':[123.97,47.33],
'盐城':[120.13,33.38],
'赤峰':[118.87,42.28],
'青岛':[120.33,36.07],
'乳山':[121.52,36.89],
'金昌':[102.188043,38.520089],
'泉州':[118.58,24.93],
'莱西':[120.53,36.86],
'日照':[119.46,35.42],
'胶南':[119.97,35.88],
'南通':[121.05,32.08],
'拉萨':[91.11,29.97],
'云浮':[112.02,22.93],
'梅州':[116.1,24.55],
'文登':[122.05,37.2],
'上海':[121.48,31.22],
'攀枝花':[101.718637,26.582347],
'威海':[122.1,37.5],
'承德':[117.93,40.97],
'厦门':[118.1,24.46],
'汕尾':[115.375279,22.786211],
'潮州':[116.63,23.68],
'丹东':[124.37,40.13],
'太仓':[121.1,31.45],
'曲靖':[103.79,25.51],
'烟台':[121.39,37.52],
'福州':[119.3,26.08],
'瓦房店':[121.979603,39.627114],
'即墨':[120.45,36.38],
'抚顺':[123.97,41.97],
'玉溪':[102.52,24.35],
'张家口':[114.87,40.82],
'阳泉':[113.57,37.85],
'莱州':[119.942327,37.177017],
'湖州':[120.1,30.86],
'汕头':[116.69,23.39],
'昆山':[120.95,31.39],
'宁波':[121.56,29.86],
'湛江':[110.359377,21.270708],
'揭阳':[116.35,23.55],
'荣成':[122.41,37.16],
'连云港':[119.16,34.59],
'葫芦岛':[120.836932,40.711052],
'常熟':[120.74,31.64],
'东莞':[113.75,23.04],
'河源':[114.68,23.73],
'淮安':[119.15,33.5],
'泰州':[119.9,32.49],
'南宁':[108.33,22.84],
'营口':[122.18,40.65],
'惠州':[114.4,23.09],
'江阴':[120.26,31.91],
'蓬莱':[120.75,37.8],
'韶关':[113.62,24.84],
'嘉峪关':[98.289152,39.77313],
'广州':[113.23,23.16],
'延安':[109.47,36.6],
'太原':[112.53,37.87],
'清远':[113.01,23.7],
'中山':[113.38,22.52],
'昆明':[102.73,25.04],
'寿光':[118.73,36.86],
'盘锦':[122.070714,41.119997],
'长治':[113.08,36.18],
'深圳':[114.07,22.62],
'珠海':[113.52,22.3],
'宿迁':[118.3,33.96],
'咸阳':[108.72,34.36],
'铜川':[109.11,35.09],
'平度':[119.97,36.77],
'佛山':[113.11,23.05],
'海口':[110.35,20.02],
'江门':[113.06,22.61],
'章丘':[117.53,36.72],
'肇庆':[112.44,23.05],
'大连':[121.62,38.92],
'临汾':[111.5,36.08],
'吴江':[120.63,31.16],
'石嘴山':[106.39,39.04],
'沈阳':[123.38,41.8],
'苏州':[120.62,31.32],
'茂名':[110.88,21.68],
'嘉兴':[120.76,30.77],
'长春':[125.35,43.88],
'胶州':[120.03336,36.264622],
'银川':[106.27,38.47],
'张家港':[120.555821,31.875428],
'三门峡':[111.19,34.76],
'锦州':[121.15,41.13],
'南昌':[115.89,28.68],
'柳州':[109.4,24.33],
'三亚':[109.511909,18.252847],
'自贡':[104.778442,29.33903],
'吉林':[126.57,43.87],
'阳江':[111.95,21.85],
'泸州':[105.39,28.91],
'西宁':[101.74,36.56],
'宜宾':[104.56,29.77],
'呼和浩特':[111.65,40.82],
'成都':[104.06,30.67],
'大同':[113.3,40.12],
'镇江':[119.44,32.2],
'桂林':[110.28,25.29],
'张家界':[110.479191,29.117096],
'宜兴':[119.82,31.36],
'北海':[109.12,21.49],
'西安':[108.95,34.27],
'金坛':[119.56,31.74],
'东营':[118.49,37.46],
'牡丹江':[129.58,44.6],
'遵义':[106.9,27.7],
'绍兴':[120.58,30.01],
'扬州':[119.42,32.39],
'常州':[119.95,31.79],
'潍坊':[119.1,36.62],
'重庆':[106.54,29.59],
'台州':[121.420757,28.656386],
'南京':[118.78,32.04],
'滨州':[118.03,37.36],
'贵阳':[106.71,26.57],
'无锡':[120.29,31.59],
'本溪':[123.73,41.3],
'克拉玛依':[84.77,45.59],
'渭南':[109.5,34.52],
'马鞍山':[118.48,31.56],
'宝鸡':[107.15,34.38],
'焦作':[113.21,35.24],
'句容':[119.16,31.95],
'北京':[116.46,39.92],
'徐州':[117.2,34.26],
'衡水':[115.72,37.72],
'包头':[110,40.58],
'绵阳':[104.73,31.48],
'乌鲁木齐':[87.68,43.77],
'枣庄':[117.57,34.86],
'杭州':[120.19,30.26],
'淄博':[118.05,36.78],
'鞍山':[122.85,41.12],
'溧阳':[119.48,31.43],
'库尔勒':[86.06,41.68],
'安阳':[114.35,36.1],
'开封':[114.35,34.79],
'济南':[117,36.65],
'德阳':[104.37,31.13],
'温州':[120.65,28.01],
'九江':[115.97,29.71],
'邯郸':[114.47,36.6],
'临安':[119.72,30.23],
'兰州':[103.73,36.03],
'沧州':[116.83,38.33],
'临沂':[118.35,35.05],
'南充':[106.110698,30.837793],
'天津':[117.2,39.13],
'富阳':[119.95,30.07],
'泰安':[117.13,36.18],
'诸暨':[120.23,29.71],
'郑州':[113.65,34.76],
'哈尔滨':[126.63,45.75],
'聊城':[115.97,36.45],
'芜湖':[118.38,31.33],
'唐山':[118.02,39.63],
'平顶山':[113.29,33.75],
'邢台':[114.48,37.05],
'德州':[116.29,37.45],
'济宁':[116.59,35.38],
'荆州':[112.239741,30.335165],
'宜昌':[111.3,30.7],
'义乌':[120.06,29.32],
'丽水':[119.92,28.45],
'洛阳':[112.44,34.7],
'秦皇岛':[119.57,39.95],
'株洲':[113.16,27.83],
'石家庄':[114.48,38.03],
'莱芜':[117.67,36.19],
'常德':[111.69,29.05],
'保定':[115.48,38.85],
'湘潭':[112.91,27.87],
'金华':[119.64,29.12],
'岳阳':[113.09,29.37],
'长沙':[113,28.21],
'衢州':[118.88,28.97],
'廊坊':[116.7,39.53],
'菏泽':[115.480656,35.23375],
'合肥':[117.27,31.86],
'武汉':[114.31,30.52],
'大庆':[125.03,46.58]
};
function convertData(data) {
var res = [];
for (var i = 0; i < data.length; i++) {
var geoCoord = geoCoordMap[data[i].name];
if (geoCoord) {
res.push({
name: data[i].name,
value: geoCoord.concat(data[i].value)
});
}
}
return res;
};
option = {
backgroundColor: '#000',//画布背景颜色
geo: {
show: true,
map: 'china',
label: {
show: false
},
roam: false,
itemStyle: {
normal: {
areaColor: {
type: 'linear',
x: 0,
y: 1,
x2: 0.7,
y2: 0,
colorStops: [{
offset: 0, color: '#24a0fa'
}, {
offset: 1, color: '#15072a'
}],
global: false
},
borderWidth: 4,//设置外层边框
borderColor:'#f8911b',
// shadowColor: 'rgba(0,54,255, 1)',
// shadowColor: 'rgba(3, 36, 117, 1)',
// shadowBlur: 150
},
emphasis: {
show: false,
// areaColor: '#01215c'
}
}
},
series: [
{
type: 'scatter',
coordinateSystem: 'geo',
data: convertData(data),
symbolSize: 20,
symbol: 'image://https://pic.ulecdn.com/item/user_0102/desc20190115/1fb19e0cf39aafef_-1x-1.png',
symbolRotate: 35,
label: {
normal: {
formatter: '{b}',
position: 'right',
show: false
},
emphasis: {
show: true
}
},
itemStyle: {
normal: {
color: '#F06C00'
}
}
},
{
type: 'map',
map: 'china',
label: {
// show: false
normal: {
show: false,
},
emphasis: {
show: false,
textStyle: {
color: '#fff'
}
}
},
roam: false,
itemStyle: {
normal: {
areaColor: {
color: {
type: 'linear',
x: 0,
y: 0,
x2: 1,
y2: 1,
colorStops: [{
offset: 0, color: '#24a0fa'
}, {
offset: 1, color: '#15072a'
}],
global: false
}
},
borderColor: '#a18a3a',
borderWidth: 1,
},
emphasis: {
show: false,
areaColor: null
}
},
}
]
}
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