fix Array overflow

deyihu · fuzhenn · commit a554e217207f · 2020-08-24T23:09:39.000+08:00
diff --git a/src/ui/InfoWindow.js b/src/ui/InfoWindow.js
@@ -346,6 +346,12 @@ class InfoWindow extends UIComponent {
                 ptIndex = i;
             }
         }
+        if (ptIndex < 0) {
+            return {
+                dist: minPtDis,
+                coordinate: mouseCoordinate
+            };
+        }
         const point = new Point(xys[ptIndex].x, xys[ptIndex].y);
         return {
             dis: minPtDis,

Original file line number	Diff line number	Diff line change
`@@ -346,6 +346,12 @@ class InfoWindow extends UIComponent {`
`346`	`346`	`ptIndex = i;`
`347`	`347`	`}`
`348`	`348`	`}`
	`349`	`+ if (ptIndex < 0) {`
	`350`	`+ return {`
	`351`	`+ dist: minPtDis,`
	`352`	`+ coordinate: mouseCoordinate`
	`353`	`+ };`
	`354`	`+ }`
`349`	`355`	`const point = new Point(xys[ptIndex].x, xys[ptIndex].y);`
`350`	`356`	`return {`
`351`	`357`	`dis: minPtDis,`