better scaling for long vehicles. refs #3907

eclipse-sumo · Mar 22, 2018 · 69eedb9 · 69eedb9
1 parent 1f2d467
commit 69eedb9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/guisim/GUIBaseVehicle.cpp b/src/guisim/GUIBaseVehicle.cpp
@@ -898,6 +898,10 @@ GUIBaseVehicle::drawOnPos(const GUIVisualizationSettings& s, const Position& pos
     // scale
     const double upscale = s.vehicleSize.getExaggeration(s);
     double upscaleLength = upscale;
+    if (upscale > 1 && length > 5) {
+        // reduce the length/width ratio because this is not usefull at high zoom
+        upscaleLength *= (5 + sqrt(length - 5)) / length;
+    }
     glScaled(upscale, upscaleLength, 1);
     /*
         MSLCM_DK2004 &m2 = static_cast<MSLCM_DK2004&>(veh->getLaneChangeModel());