From 694e2f3cc55962e988ab77cb29f3b0177f4a2d2d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20B=C3=A1thory?= <peter.bathory@cartographia.hu>
Date: Sat, 27 Jun 2020 22:04:05 +0200
Subject: [PATCH] fix creating corrupt bbox if a component is empty

---
 src/Geometry/Collection.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Geometry/Collection.php b/src/Geometry/Collection.php
index a178fcdd..b56c73ef 100644
--- a/src/Geometry/Collection.php
+++ b/src/Geometry/Collection.php
@@ -141,6 +141,9 @@ public function getBBox()
         $maxX = $maxY = $minX = $minY = 0;
         foreach ($this->components as $i => $component) {
             $componentBoundingBox = $component->getBBox();
+            if ($componentBoundingBox === null) {
+                continue;
+            }
 
             // On the first run through, set the bounding box to the component's bounding box
             if ($i == 0) {