use constant for default dpi

2020-04-03 17:17:11 +01:00
parent 6aa953b571
commit fb84426411
1 changed files with 1 additions and 1 deletions
--- a/src/ol/control/ScaleLine.js
+++ b/src/ol/control/ScaleLine.js
@@ -437,7 +437,7 @@ class ScaleLine extends Control {
      this.viewState_.resolution,
      this.viewState_.center
    );
-    const dpi = this.dpi_ || (25.4 / 0.28);
+    const dpi = this.dpi_ || DEFAULT_DPI;
    const mpu = this.viewState_.projection.getMetersPerUnit();
    const inchesPerMeter = 39.37;
    return parseFloat(resolution.toString()) * mpu * inchesPerMeter * dpi;