正文
amcharts简单demo(仪表盘)
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最近项目中展示数据有用到amcharts,一个小demo例子。
<script src="<%=basePath%>amchart/amcharts.js" type="text/javascript"></script>
<script src="<%=basePath%>amchart/gauge.js" type="text/javascript"></script> <div id="chartdiv4" style="width:240px; height:200px; margin-left:-70px"></div>
//创建chart公用函数
function fnChart(num0,num1,num2,num3,num4,num5,num6){
// 创建仪表盘对象
var chart;
var arrow;
var axis;
chart = new AmCharts.AmAngularGauge();
chart.marginTop="0";
chart.addTitle(num0);//参数0(仪表盘名称)
chart.backgroundColor="#dddddd";
// 仪表盘的取值范围
var band1 = new AmCharts.GaugeBand();
band1.startValue = 0;
band1.alpha= "10";
band1.endValue = num1;//参数1(刻度范围)
band1.color = num2;//参数2(刻度范围)
band1.innerRadius = "80%";
var band2 = new AmCharts.GaugeBand();
band2.startValue = num3;//参数3(刻度范围)
band2.endValue = 100;
band2.innerRadius = "80%";
band2.color = num4;//参数4(仪表盘的颜色)
//
axis = new AmCharts.GaugeAxis();
axis.bands = [band1, band2];
axis.startValue = 0;
axis.axisThickness = 1;
axis.axisThickness = 7;//盘边灰色的厚度
axis.bottomTextYOffset = 40;
axis.endValue = 100;
axis.valueInterval =10;
axis.axisColor="#dddddd";
axis.bottomTextColor="red";//底部显示数据的字体的颜色
axis.bottomTextYOffset = 15;//设置圆盘的扩张度(-20.-40等)
chart.addAxis(axis);//将axis添加到chart上
// 设置指针
arrow = new AmCharts.GaugeArrow();
arrow.borderAlpha = 1;
//设置默认指针位置
arrow.setValue(Base.getValue(num5));//参数5(表盘底部值)
chart.addArrow(arrow);//给chart添加指针
chart.write(num6); //参数6(div的id)
}
效果如下: