View / handle resolutions array with length=1

2019-01-20 16:32:15 +01:00
parent 49662b019c
commit b5273babb5
1 changed files with 3 additions and 0 deletions
--- a/src/ol/View.js
+++ b/src/ol/View.js
@@ -971,6 +971,9 @@ class View extends BaseObject {
   */
  getResolutionForZoom(zoom) {
    if (this.resolutions_) {
+      if (this.resolutions_.length <= 1) {
+        return 0;
+      }
      const baseLevel = clamp(Math.floor(zoom), 0, this.resolutions_.length - 2);
      const zoomFactor = this.resolutions_[baseLevel] / this.resolutions_[baseLevel + 1];
      return this.resolutions_[baseLevel] / Math.pow(zoomFactor, clamp(zoom - baseLevel, 0, 1));