From 5b90436d8860b56af851b00eddfb2dcb7ba88dd5 Mon Sep 17 00:00:00 2001
From: jsimomaa <jani.simomaa@gmail.com>
Date: Mon, 22 Apr 2019 21:07:46 +0300
Subject: [PATCH] Prevent scaling of vertices in zoom levels > 15

gitlab #35
APROS-15329

Change-Id: I8797d241c3ce59031851e6e74c66c0f4907783b7
---
 .../network/ui/nodes/DistrictNetworkNodeUtils.java        | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java
index 21e49b58..c9e4a00e 100644
--- a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java
@@ -39,7 +39,13 @@ public class DistrictNetworkNodeUtils {
 
     public static double calculateScaleRecip(AffineTransform tr) {
         int zoomLevel = MapScalingTransform.zoomLevel(tr);
-        double t = 1.0 / (getScale(tr) * Math.sqrt(zoomLevel));
+        double t;
+        if (zoomLevel > 15) {
+            int d = zoomLevel - 15; // stop zooming vertices when zoom level > 15
+            t = 1.0 / d / (getScale(tr) * Math.sqrt(zoomLevel));
+        } else {
+            t = 1.0 / (getScale(tr) * Math.sqrt(zoomLevel));
+        }
         return t;
     }
 
-- 
2.47.1