diff --git a/src/src/Rendering/Viewer/DICOMImageViewer.cxx b/src/src/Rendering/Viewer/DICOMImageViewer.cxx
index daf3751..91b0911 100644
--- a/src/src/Rendering/Viewer/DICOMImageViewer.cxx
+++ b/src/src/Rendering/Viewer/DICOMImageViewer.cxx
@@ -494,6 +494,15 @@ void DICOMImageViewer::GetSlicePoint(double *point) {
     point[2] = focusPoint[2];
 }
 
+void DICOMImageViewer::TransformPointM2W(double *point)
+{
+    double focusPoint[4] = {point[0], point[1], point[2], 1.0};
+    ModelToWorldMatrix->MultiplyPoint(focusPoint, focusPoint);
+    point[0] = focusPoint[0];
+    point[1] = focusPoint[1];
+    point[2] = focusPoint[2];
+}
+
 void DICOMImageViewer::applySliceOffset(double offset, double direction){
     double projV = Renderer->GetActiveCamera()->GetDirectionOfProjection()[SliceIJK];
     double defaultProjV = defaultProjection[SliceIJK][SliceIJK];
diff --git a/src/src/Rendering/Viewer/DICOMImageViewer.h b/src/src/Rendering/Viewer/DICOMImageViewer.h
index 93e948d..d894911 100644
--- a/src/src/Rendering/Viewer/DICOMImageViewer.h
+++ b/src/src/Rendering/Viewer/DICOMImageViewer.h
@@ -373,6 +373,8 @@ public:
 
     void GetSlicePoint(double *point);
 
+    void TransformPointM2W(double *point);
+
     void applySliceOffset(double offset, double direction);
 
     virtual void UpdateReconPlane();