simplify scale calculation

update tests to reflect more accurate calculation
2020-08-03 22:19:56 +01:00
parent 425214eb4c
commit 95702648b2
4 changed files with 8 additions and 10 deletions
--- a/src/ol/source/TileWMS.js
+++ b/src/ol/source/TileWMS.js
@@ -263,9 +263,8 @@ class TileWMS extends TileImage {
      const mpu = this.getProjection()
        ? this.getProjection().getMetersPerUnit()
        : 1;
-      const dpi = 25.4 / 0.28;
-      const inchesPerMeter = 39.37;
-      baseParams['SCALE'] = resolution * mpu * inchesPerMeter * dpi;
+      const pixelSize = 0.00028;
+      baseParams['SCALE'] = (resolution * mpu) / pixelSize;
    }

    assign(baseParams, params);