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View / handle resolutions array with length=1

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