--- a/OrthancStone/Sources/Scene2D/TextureBaseSceneLayer.cpp	Tue May 11 17:18:39 2021 +0200
+++ b/OrthancStone/Sources/Scene2D/TextureBaseSceneLayer.cpp	Wed May 12 10:26:13 2021 +0200
@@ -160,6 +160,44 @@
   }
 
 
+  void TextureBaseSceneLayer::SetCuttingPlaneTransform(const CoordinateSystem3D& cuttingPlane,
+                                                       const Vector& origin,
+                                                       const Vector& pixelOffsetX,
+                                                       const Vector& pixelOffsetY)
+  {
+    double x0, y0, x1, y1, x2, y2;
+    cuttingPlane.ProjectPoint(x0, y0, origin);
+    cuttingPlane.ProjectPoint(x1, y1, origin + pixelOffsetX);
+    cuttingPlane.ProjectPoint(x2, y2, origin + pixelOffsetY);
+
+    /**
+
+       A = [ a11 a12 ; a21 a22 ]
+       
+       (1) A * (0 ; 0) + (b1 ; b2) = (x0 ; y0)
+       (2) A * (1 ; 0) + (b1 ; b2) = (x1 ; y1)
+       (3) A * (0 ; 1) + (b1 ; b2) = (x2 ; y2)
+
+       (2-1) A * (1 ; 0) = (x1 - x0 ; y1 - y0) <=> (a11 ; a21) = (x1 - x0 ; y1 - y0)
+       (3-1) A * (0 ; 1) = (x2 - x0 ; y2 - y0) <=> (a12 ; a22) = (x2 - x0 ; y2 - y0)
+
+    **/
+
+    Matrix m(3, 3);
+    m(0, 0) = x1 - x0;  // a11
+    m(0, 1) = x2 - x0;  // a12
+    m(0, 2) = x0;       // b1
+    m(1, 0) = y1 - y0;  // a21
+    m(1, 1) = y2 - y0;  // a22
+    m(1, 2) = y0;       // b2
+    m(2, 0) = 0;
+    m(2, 1) = 0;
+    m(2, 2) = 1;
+
+    SetTransform(AffineTransform2D(m));
+  }
+
+
   AffineTransform2D TextureBaseSceneLayer::GetTransform() const
   {
     if (transform_.get() == NULL)