echarts难点说明

首先echarts

系统封装echarts说明：
</script>	<script type="text/javascript" src="/hengs/static/module/cimss-echar/resources/js/echars/js/echarts.js"></script>
	<script>
		var echar = {
			imgData : "",
			initEChart : function(){
				require.config({
			        paths: {
			            echarts: '/hengs/static/module/cimss-echar/resources/js/echars/js'
			        }
			    });
			},
			
			loadChart : function(option,cdom){
				echar.initEChart();
				var that = this;
				require(
			        [
			            'echarts',
			            'echarts/chart/bar',
			            'echarts/chart/line',
			            'echarts/chart/pie',
			            'echarts/chart/gauge',
			            'echarts/chart/map'
			        ],
			        function (ec) {
			            var myChart = ec.init(cdom); 
			            myChart.showLoading({
			                text : "图表数据正在努力加载..."
			            });
			            
			            myChart.hideLoading();
	           	 		myChart.setOption(option);
	            		echar.imgData = myChart.getDataURL('png');//获取base64编码
			        }
			    );
			},
			
			getSeriesdata : function (name,etype,edata){
				var series = new Array();
				for(var i = 0;i < name.length;i++){
					var item = {
						name : name[i],
						type : etype,
						data : edata[i].split(",")
					}
					series.push(item);
				}
				return series;
			},
			
			post : function (url,params){
				var tempForm = document.createElement("form");
				tempForm.action = url;
				tempForm.method = "post";
				tempForm.style.display = "none";
				for(var x in params){
					var opt = document.createElement("textarea");
					opt.name = x;
					opt.value = params[x];
					tempForm.appendChild(opt);
				}
				document.body.appendChild(tempForm);
				tempForm.submit();
			}
		}
	</script>