var getsrlb = ['体育部', '中法核工程与技术学院', '国际翻译学院', '数据科学与计算机学院（软件学院）', '岭南学院', '生命科学学院', '马克思主义学院', '法学院（知识产权学院、中英国际海事法学院）', '药学院', '逸仙学院', '大气科学实验', '电子与通信工程学院', '地理科学与规划学院', '传播与设计学院']; //数据点名称
var getsrje = [2306, 1936, 1553, 1320, 998, 606, 566, 553, 420, 398, 365, 290, 222, 214];
//计算最大值
function calMax(arr) {
let max = 0;
arr.forEach((el) => {
el.forEach((el1) => {
if (!(el1 === undefined || el1 === '')) {
if (max < el1) {
max = el1;
}
}
})
})
let maxint = Math.ceil(max / 9.5);
//不让最高的值超过最上面的刻度
let maxval = maxint * 10;
//让显示的刻度是整数
return maxval;
}
var max = Math.ceil(calMax([getsrje]) / 100) * 100;
option = {
backgroundColor: '#fff',
grid: {
left: "30",
right: "15",
bottom: "35",
top: "60",
containLabel: true,
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'none'
},
formatter: function(params) {
return params[0].name + '<br>开课门数: ' + params[0].value + '门'
}
},
xAxis: {
type: 'category',
data: getsrlb,
axisLabel: {
//interval: 0,
formatter: function(value) {
var ret = ""; //拼接加\n返回的类目项
var maxLength = 6; //每项显示文字个数
var valLength = value.length; //X轴类目项的文字个数
var rowN = Math.ceil(valLength / maxLength); //类目项需要换行的行数
if (rowN > 1) //如果类目项的文字大于6,
{
for (var i = 0; i < rowN; i++) {
var temp = ""; //每次截取的字符串
var start = i * maxLength; //开始截取的位置
var end = start + maxLength; //结束截取的位置
//这里也可以加一个是否是最后一行的判断，但是不加也没有影响，那就不加吧
temp = value.substring(start, end) + "\n";
ret += temp; //凭借最终的字符串
}
return '{a|' + ret + '}';
} else {
return value;
}
},
rich: {
a: {
lineHeight: 18,
fontSize: 13
}
},
margin: 10,
color: '#999999',
textStyle: {
fontSize: 13
},
},
axisLine: {
lineStyle: {
color: '#8E8E8E',
}
},
axisTick: {
show: false
},
},
yAxis: {
name: '门数(门)',
nameTextStyle: {
color: '#666666',
fontSize: 13,
padding: [0, 0, 0, 50]
},
min: 0,
max: max, // 计算最大值
interval: max / 5, // 平均分为5份
splitNumber: 5,
axisLabel: {
formatter: function(value) {
num = value
if (num && num != 'undefined' && num != 'null') {
let numS = num;
numS = numS.toString();
numS = numS.replace(/,/gi, '');
return numS;
} else {
return num;
}
},
color: '#999999',
textStyle: {
fontSize: 13
},
},
axisLine: {
lineStyle: {
color: '#8E8E8E',
}
},
axisTick: {
show: false
},
splitLine: {
lineStyle: {
color: '#D8D8D8',
}
}
},
dataZoom: [{
show: true,
height: 8,
xAxisIndex: [0],
bottom: 10,
startValue: 0,
endValue: 8,
handleIcon: "M-292,322.2c-3.2,0-6.4-0.6-9.3-1.9c-2.9-1.2-5.4-2.9-7.6-5.1s-3.9-4.8-5.1-7.6c-1.3-3-1.9-6.1-1.9-9.3c0-3.2,0.6-6.4,1.9-9.3c1.2-2.9,2.9-5.4,5.1-7.6s4.8-3.9,7.6-5.1c3-1.3,6.1-1.9,9.3-1.9c3.2,0,6.4,0.6,9.3,1.9c2.9,1.2,5.4,2.9,7.6,5.1s3.9,4.8,5.1,7.6c1.3,3,1.9,6.1,1.9,9.3c0,3.2-0.6,6.4-1.9,9.3c-1.2,2.9-2.9,5.4-5.1,7.6s-4.8,3.9-7.6,5.1C-285.6,321.5-288.8,322.2-292,322.2z",
handleSize: "100%",
handleStyle: {
color: "#ADADAD",
//shadowColor: "#B1B5B9",
//shadowBlur: 5,
},
backgroundColor: "transparent",
fillerColor: "#ADADAD",
dataBackground: {
lineStyle: {
color: "transparent",
},
areaStyle: {
color: "transparent",
},
},
borderColor: "transparent",
}],
series: [{
type: 'line',
smooth: true,
symbol: 'circle',
symbolSize: 8,
data: getsrje,
areaStyle: {
normal: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: 'rgba(24,144,255, 0.3)'
}, {
offset: 0.8,
color: 'rgba(24,144,255, 0)'
}], false),
},
},
lineStyle: {
normal: {
width: 3,
color: '#1890FF', // 线条颜色
shadowColor: 'rgba(29,90,182,0.36)',
shadowBlur: 10,
shadowOffsetY: 10,
},
},
itemStyle: {
normal: {
color: '#fff',
borderColor: '#1890FF',
borderWidth: 3,
}
},
}]
};