diff --git a/Plotter.js b/Plotter.js
index 0f90ee3c5..32a4f3ff4 100644
--- a/Plotter.js
+++ b/Plotter.js
@@ -8,6 +8,7 @@ function newPlotter () {
   let thisObject = {
     currentRecord: undefined,
     container: undefined,
+    fitFunction: undefined,
     onDailyFileLoaded: onDailyFileLoaded,
     initialize: initialize,
     finalize: finalize,
@@ -67,6 +68,7 @@ function newPlotter () {
       marketFiles.eventHandler.stopListening(marketFilesUpdatedEventSubscriptionId)
       dailyFiles.eventHandler.stopListening(dailyFilesUpdatedEventSubscriptionId)
       thisObject.container.eventHandler.stopListening(onDisplaceEventSubscriptionId)
+      thisObject.fitFunction = undefined
 
       /* Clear References */
       marketFiles = undefined
@@ -724,6 +726,7 @@ function newPlotter () {
               }
               /* We make sure the points do not fall outside the viewport visible area. This step allways need to be done.  */
               dataPoint = canvas.chartSpace.viewport.fitIntoVisibleArea(dataPoint)
+              dataPoint = thisObject.fitFunction(dataPoint)
               if (k === 0) {
                 browserCanvasContext.moveTo(dataPoint.x, dataPoint.y)
               } else {