WIP:dynamicMotionSolverListFvMesh uses same points0 as reference. Fixes #1702

dynamicMotionSolverListFvMesh uses same points0 as reference. Fixes #1702 (closed)

src/dynamicFvMesh/dynamicMotionSolverListFvMesh/dynamicMotionSolverListFvMesh.C

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2016 OpenFOAM Foundation
-    Copyright (C) 2019 OpenCFD Ltd.
+    Copyright (C) 2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -119,12 +119,26 @@ bool Foam::dynamicMotionSolverListFvMesh::update()
 {
     if (motionSolvers_.size())
     {
+        const pointField& initPoints = lookupObjectRef<pointField>("points0");
+
         // Accumulated displacement
         pointField disp(motionSolvers_[0].newPoints() - fvMesh::points());
 
         for (label i = 1; i < motionSolvers_.size(); i++)
         {
-            disp += motionSolvers_[i].newPoints() - fvMesh::points();
+            tmp<pointField> dispI(motionSolvers_[i].newPoints());
+
+            forAll (disp, j)
+            {
+                if (mag(disp[j]) > 0)
+                {
+                    disp[j] += dispI()[j] - initPoints[j];
+                }
+                else
+                {
+                    disp[j] += dispI()[j] - fvMesh::points()[j];
+                }
+            }
         }
 
         fvMesh::movePoints(points() + disp);