Convert box size to boosted frame, when using Python `step` function

2 files changed, 9 insertions, 1 deletions

diff --git a/Source/Python/WarpXWrappers.cpp b/Source/Python/WarpXWrappers.cpp
index 6ee06a7d5..16d7cd841 100644
--- a/Source/Python/WarpXWrappers.cpp
+++ b/Source/Python/WarpXWrappers.cpp
@@ -5,6 +5,7 @@
 #include <WarpXWrappers.h>
 #include <WarpXParticleContainer.H>
 #include <WarpX.H>
+#include <WarpXUtil.H>
 #include <WarpX_py.H>
 
 namespace 
@@ -170,6 +171,11 @@ extern "C"
 	myspc.AddNParticles(lev, lenx, x, y, z, vx, vy, vz, nattr, attr, uniqueparticles);
     }
 
+    void warpx_ConvertLabParamsToBoost()
+    {
+      ConvertLabParamsToBoost();
+    }
+
     double warpx_getProbLo(int dir)
     {
       WarpX& warpx = WarpX::GetInstance();
diff --git a/Source/Python/WarpXWrappers.h b/Source/Python/WarpXWrappers.h
index 07d6f80f7..94fbb0d30 100644
--- a/Source/Python/WarpXWrappers.h
+++ b/Source/Python/WarpXWrappers.h
@@ -52,7 +52,9 @@ extern "C" {
                              double* x, double* y, double* z,
                              double* vx, double* vy, double* vz,
                              int nattr, double* attr, int uniqueparticles);
-    
+
+    void warpx_ConvertLabParamsToBoost();
+  
     double warpx_getProbLo(int dir);
     
     double warpx_getProbHi(int dir);