From 4c8190e0cc9b1f1588e7bd99ff42fba7214bb80b Mon Sep 17 00:00:00 2001
From: Bruno Alves de Faria <brunoalvesdefaria@gmail.com>
Date: Tue, 3 Oct 2017 08:24:12 -0300
Subject: [PATCH] Performance improvements on measurements interaction

---
 LesionTracker/client/components/viewer/viewer.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/LesionTracker/client/components/viewer/viewer.js b/LesionTracker/client/components/viewer/viewer.js
index cb95df74a..f27c500fc 100644
--- a/LesionTracker/client/components/viewer/viewer.js
+++ b/LesionTracker/client/components/viewer/viewer.js
@@ -225,6 +225,10 @@ Template.viewer.onCreated(() => {
 
         firstMeasurementActivated = true;
     });
+
+    instance.measurementModifiedHandler = _.throttle((event, instance, eventData) => {
+        OHIF.measurements.MeasurementHandlers.onModified(event, instance, eventData);
+    }, 300);
 });
 
 /**
@@ -362,7 +366,7 @@ Template.viewer.events({
     },
 
     'CornerstoneToolsMeasurementModified .imageViewerViewport'(event, instance, eventData) {
-        OHIF.measurements.MeasurementHandlers.onModified(event, instance, eventData);
+        instance.measurementModifiedHandler(event, instance, eventData);
     },
 
     'CornerstoneToolsMeasurementRemoved .imageViewerViewport'(event, instance, eventData) {