fix

src/tool/canvasDrawing.js

@@ -108,6 +108,31 @@ function JScanvasMouseDown(str,e, width,patterning) {//创建线
 	}
 	return currentPatterning
 }
+function getWHXY(arr){
+	var minX = Number.MAX_SAFE_INTEGER;
+	var minY = Number.MAX_SAFE_INTEGER;
+	var maxX = Number.MIN_SAFE_INTEGER;
+	var maxY = Number.MIN_SAFE_INTEGER;
+
+	arr.forEach(function(object) {
+		var objectBoundingRect = object.getBoundingRect();
+		console.log(objectBoundingRect);
+		minX = Math.min(minX, objectBoundingRect.left);
+		minY = Math.min(minY, objectBoundingRect.top);
+		maxX = Math.max(maxX, objectBoundingRect.left + objectBoundingRect.width);
+		maxY = Math.max(maxY, objectBoundingRect.top + objectBoundingRect.height);
+	});
+	var width = maxX - minX;
+	var height = maxY - minY;
+	
+	let wHXY = {
+		width:width,
+		height:height,
+		x:minX,
+		y:minY,
+	}
+	return wHXY
+}
 function JScreateCheck(e){//创建对号
 	let downPoint = e.absolutePointer
 
@@ -206,4 +231,4 @@ function JSRectUpdata(rect, downPointer, upPointer) {
 	})
 	return rect
 }
-export { multiselectJS, JSRectUpdata, JSchangeType, JScanvasMouseDown, JScanvasMouseMove,JScreateCheck }
+export { multiselectJS, JSRectUpdata, JSchangeType, JScanvasMouseDown, JScanvasMouseMove,JScreateCheck,getWHXY }