时间轴优化避免无效重绘

src/components/groupCurve/lib/timePanel-zoom.js

@@ -80,7 +80,6 @@ TimePanel.prototype={
 		this.buildAxisConfig(utils.dateAdd(startTime,null,diff*start),utils.dateAdd(startTime,null,diff*end))
 		this.drawAxis()
 		//通知父组件重新加载数据
-		console.log('通知父组件重新加载数据')
 		let loadStart=new Date(this.axisConfig.startTime),loadEnd=new Date(this.axisConfig.endTime)
 		this.parent.groupLoad(loadStart,loadEnd,false,{showTip:true,showMask:true})
 	},
@@ -298,7 +297,7 @@ TimePanel.prototype={
 			ry=upRoller.shape.y
 			dwnry=downRoller.shape.y
 			msy=event.offsetY
-			slidey=(this.zoomComp['slideBlock']).position[1]
+			slidey=(this.zoomComp['slideBlock']).y
 			this.onEvent('mousemove',[upRoller,blockFloor,slideGroove],(event)=>{
 				let mvh=event.offsetY-msy
 				let nslidey=slidey+mvh
@@ -322,7 +321,7 @@ TimePanel.prototype={
 		
 		slideStrip.on('mousedown',(event)=>{
 			msy=event.offsetY
-			slidey=(this.zoomComp['slideBlock']).position[1]
+			slidey=(this.zoomComp['slideBlock']).y
 			let blockH=Math.abs(downRoller.shape.y-upRoller.shape.y)
 			this.onEvent('mousemove',[slideStrip,blockFloor,this.plotGrp],(event)=>{
 				
@@ -367,14 +366,22 @@ TimePanel.prototype={
 			
 			//计算起止位百分比
 			let blockY=(this.zoomComp['slideBlock']).y
-			this.zoomComp['config'].start=blockY/this.zoomComp['config'].zoomH
-			this.zoomComp['config'].end=(blockY+downRoller.shape.y)/this.zoomComp['config'].zoomH
+			let {start,end,zoomH}=this.zoomComp['config']
+			let startTmp=blockY/zoomH
+			let endTmp=(blockY+downRoller.shape.y)/zoomH
+			
+			if(startTmp!=start || endTmp!=end){ //滑块位置有变动
+				this.zoomComp['config'].start=startTmp
+				this.zoomComp['config'].end=endTmp
+				this.drawPanel()
+			}
+			
 			
 			
 			
 			//可能会多次触发，要兼容
 			//console.log(event)
-			this.drawPanel()
+			
 		})
 		
 	},