From d7eaacf9238bf5c22fc95b7aa13bdcce7b264920 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maximilian=20Kr=C3=B6g?= <maxi_kroeg@web.de>
Date: Fri, 20 Dec 2019 23:04:09 +0100
Subject: [PATCH 1/2] Small performance improvement by saving the calculated
 logarithm.

---
 src/ol/View.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/ol/View.js b/src/ol/View.js
index 5fc955d351..1dcbd9ab38 100644
--- a/src/ol/View.js
+++ b/src/ol/View.js
@@ -976,17 +976,17 @@ class View extends BaseObject {
    * @return {function(number): number} Value for resolution function.
    */
   getValueForResolutionFunction(opt_power) {
-    const power = opt_power || 2;
+    const logPower = Math.log(opt_power || 2);
     const maxResolution = this.maxResolution_;
     const minResolution = this.minResolution_;
-    const max = Math.log(maxResolution / minResolution) / Math.log(power);
+    const max = Math.log(maxResolution / minResolution) / logPower;
     return (
       /**
        * @param {number} resolution Resolution.
        * @return {number} Value.
        */
       function(resolution) {
-        const value = (Math.log(maxResolution / resolution) / Math.log(power)) / max;
+        const value = (Math.log(maxResolution / resolution) / logPower) / max;
         return value;
       });
   }

From 33389969ce36c25ba0499a8dfa9a14eeb8967b69 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maximilian=20Kr=C3=B6g?= <maxi_kroeg@web.de>
Date: Fri, 20 Dec 2019 23:04:55 +0100
Subject: [PATCH 2/2] Limit the ZoomSlider's range to the view's constrained
 resolution.

---
 src/ol/View.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ol/View.js b/src/ol/View.js
index 1dcbd9ab38..3d3bb4bacd 100644
--- a/src/ol/View.js
+++ b/src/ol/View.js
@@ -945,7 +945,7 @@ class View extends BaseObject {
    */
   getResolutionForValueFunction(opt_power) {
     const power = opt_power || 2;
-    const maxResolution = this.maxResolution_;
+    const maxResolution = this.getConstrainedResolution(this.maxResolution_);
     const minResolution = this.minResolution_;
     const max = Math.log(maxResolution / minResolution) / Math.log(power);
     return (
@@ -977,7 +977,7 @@ class View extends BaseObject {
    */
   getValueForResolutionFunction(opt_power) {
     const logPower = Math.log(opt_power || 2);
-    const maxResolution = this.maxResolution_;
+    const maxResolution = this.getConstrainedResolution(this.maxResolution_);
     const minResolution = this.minResolution_;
     const max = Math.log(maxResolution / minResolution) / logPower;
     return (