diff --git a/src/src/Rendering/Measure/OpenPolyAnnotationActor.cpp b/src/src/Rendering/Measure/OpenPolyAnnotationActor.cpp
index 78e9363..b6dccf5 100644
--- a/src/src/Rendering/Measure/OpenPolyAnnotationActor.cpp
+++ b/src/src/Rendering/Measure/OpenPolyAnnotationActor.cpp
@@ -8,6 +8,8 @@
 #include <vtkActor2D.h>
 #include <vtkTextMapper.h>
 #include <vtkTextProperty.h>
+#include <vtkPolygon.h>
+#include <vtkLine.h>
 
 #include <QFile>
 #include <QCoreApplication>
@@ -155,6 +157,7 @@ void OpenPolyAnnotationActor::controlPointCb(vtkObject *sender, unsigned long ev
     double result[3] = {0, 0, 0};
     MapScreenPointToWorld(pos[0], pos[1], this->Renderer, result);
     BaseDataPoints->SetPoint(index, result);
+    UpdatePerimeterAndAreaText();
 }
 
 void OpenPolyAnnotationActor::Highlight(int f) {
@@ -165,9 +168,55 @@ void OpenPolyAnnotationActor::Highlight(int f) {
 }
 
 bool OpenPolyAnnotationActor::onMeasureDoubleClick(vtkRenderWindowInteractor *) {
+    UpdatePerimeterAndAreaText();
     return false;
 }
 
+void OpenPolyAnnotationActor::UpdatePerimeterAndAreaText()
+{
+    if (text)
+    {
+        double *rp = renderPoints->GetPoint(0);
+        text->SetDisplayPosition(rp[0] + 10, rp[1] - 20);
+        double distance = 0.0;
+        for (vtkIdType i = 1; i < BaseDataPoints->GetNumberOfPoints(); ++i)
+        {
+            double p1[3] = {0.};
+            double p2[3] = {0.};
+            BaseDataPoints->GetPoint(i, p1);
+            BaseDataPoints->GetPoint(i - 1, p2);
+
+            distance += vtkMath::Distance2BetweenPoints(p1, p2);
+        }
+
+        if(!Closed)
+        {
+            bool unitFlag = distance>100;
+            QString textValue = QString("%1: %2 %3").arg(mDistanceName)
+                    .arg(unitFlag?distance/10:distance,0,'f',2).arg(unitFlag?mUnitcm:mUnitmm);
+            vtkTextMapper::SafeDownCast(text->GetMapper())->SetInput(textValue.toUtf8().constData());
+            text->SetVisibility(1);
+            measured = true;
+        }
+        else{
+        
+            vtkNew<vtkPolygon> polygon;
+            polygon->Initialize(BaseDataPoints->GetNumberOfPoints(), BaseDataPoints);
+            double area = polygon->ComputeArea();
+            bool unitFlag1 = distance>100;
+            bool unitFlag2 = area>1000;
+
+            QString textValue = QString("%1: %2 %3, %4: %5 %6").arg(mDistanceName)
+                    .arg(unitFlag1?distance/10:distance,0,'f',2).arg(unitFlag1?mUnitcm:mUnitmm)
+                    .arg(mAreaName)
+                    .arg(unitFlag2?area/100:area,0,'f',2).arg(unitFlag2?mUnitcm2:mUnitmm2);
+            vtkTextMapper::SafeDownCast(text->GetMapper())->SetInput(textValue.toUtf8().constData());
+            text->SetVisibility(1);
+            measured = true;
+        }
+    }
+}
+
 bool OpenPolyAnnotationActor::Valid() {
     return Closed == 0 ? BaseDataPoints->GetNumberOfPoints() > 1 : BaseDataPoints->GetNumberOfPoints() > 2;
 }
diff --git a/src/src/Rendering/Measure/OpenPolyAnnotationActor.h b/src/src/Rendering/Measure/OpenPolyAnnotationActor.h
index 17b179c..a960cab 100644
--- a/src/src/Rendering/Measure/OpenPolyAnnotationActor.h
+++ b/src/src/Rendering/Measure/OpenPolyAnnotationActor.h
@@ -30,6 +30,8 @@ public:
 
     bool onMeasureDoubleClick(vtkRenderWindowInteractor *) override;
 
+    void UpdatePerimeterAndAreaText();
+
     bool onMeasureLeftButtonDown(vtkRenderWindowInteractor *) override;
 
     void onMeasureMouseMove(vtkRenderWindowInteractor *) override;