Fix VectorSource isEmpty without spatial index

2022-02-13 00:08:24 +01:00
parent 9bfb0c1b9d
commit e2c9f62cc6
1 changed files with 9 additions and 1 deletions
--- a/src/ol/source/Vector.js
+++ b/src/ol/source/Vector.js
@@ -941,7 +941,15 @@ class VectorSource extends Source {
   * @return {boolean} Is empty.
   */
  isEmpty() {
-    return this.featuresRtree_.isEmpty() && isEmpty(this.nullGeometryFeatures_);
+    if (this.featuresRtree_) {
+      return (
+        this.featuresRtree_.isEmpty() && isEmpty(this.nullGeometryFeatures_)
+      );
+    }
+    if (this.featuresCollection_) {
+      return this.featuresCollection_.getLength() === 0;
+    }
+    return true;
  }

  /**