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changeset 1067:3f14b73414e2

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client: correct and improve area measurement * Correct the conversion to km². * Offer m² if we are blow 0.1 km², otherwise round to 1000 m²
author Bernhard Reiter <bernhard@intevation.de>
date Fri, 26 Oct 2018 09:35:43 +0200
parents 7ec2133c6404
children c933665b0193
files client/src/map/Maplayer.vue
diffstat 1 files changed, 6 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/client/src/map/Maplayer.vue	Thu Oct 25 23:16:53 2018 +0200
+++ b/client/src/map/Maplayer.vue	Fri Oct 26 09:35:43 2018 +0200
@@ -162,7 +162,12 @@
         const areaSize = getArea(event.feature.getGeometry());
         // also place the a rounded areaSize in a property,
         // so identify will show it
-        event.feature.set("area (km²)", Math.round(areaSize) / 1000);
+        if (areaSize > 100000) {
+          // convert into 1 km² == 1000*1000 m² and round to 1000 m²
+          event.feature.set("area (km²)", Math.round(areaSize / 1000) / 1000);
+        } else {
+          event.feature.set("area (m²)", Math.round(areaSize));
+        }
       }
       if (this.drawMode === "LineString") {
         const length = getLength(event.feature.getGeometry());