1 files changed, 61 insertions, 0 deletions
diff --git a/CarpetExtra/IDScalarWaveFO/src/initialdata.F90 b/CarpetExtra/IDScalarWaveFO/src/initialdata.F90
new file mode 100644
index 000000000..3530fdfbc
--- /dev/null
+++ b/CarpetExtra/IDScalarWaveFO/src/initialdata.F90
@@ -0,0 +1,61 @@
+!     $Header:$
+
+#include "cctk.h"
+#include "cctk_Arguments.h"
+#include "cctk_Functions.h"
+#include "cctk_Parameters.h"
+      
+      subroutine IDScalarWaveFO_InitialData (CCTK_ARGUMENTS)
+      implicit none
+      DECLARE_CCTK_ARGUMENTS
+      DECLARE_CCTK_FUNCTIONS
+      DECLARE_CCTK_PARAMETERS
+      CCTK_REAL pi
+      parameter (pi = 3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117068d0)
+      CCTK_REAL omega
+      integer i, j, k
+      
+      if (CCTK_EQUALS(initial_data, "plane")) then
+         omega = sqrt(wave_number(1)**2 + wave_number(2)**2 + wave_number(3)**2)
+         do k=1,cctk_lsh(3)
+            do j=1,cctk_lsh(2)
+               do i=1,cctk_lsh(1)
+                  phi(i,j,k) = amplitude * cos (2*pi * &
+                       ( wave_number(1)*(x(i,j,k)-phase_offset(1)) &
+                       + wave_number(2)*(y(i,j,k)-phase_offset(2)) &
+                       + wave_number(3)*(z(i,j,k)-phase_offset(3)) &
+                       + omega*(cctk_time-time_offset)))
+                  psix(i,j,k) = amplitude * wave_number(1) / omega * cos (2*pi * &
+                       ( wave_number(1)*(x(i,j,k)-phase_offset(1)) &
+                       + wave_number(2)*(y(i,j,k)-phase_offset(2)) &
+                       + wave_number(3)*(z(i,j,k)-phase_offset(3)) &
+                       + omega*(cctk_time-time_offset)))
+                  psiy(i,j,k) = amplitude * wave_number(2) / omega * cos (2*pi * &
+                       ( wave_number(1)*(x(i,j,k)-phase_offset(1)) &
+                       + wave_number(2)*(y(i,j,k)-phase_offset(2)) &
+                       + wave_number(3)*(z(i,j,k)-phase_offset(3)) &
+                       + omega*(cctk_time-time_offset)))
+                  psiz(i,j,k) = amplitude * wave_number(3) / omega * cos (2*pi * &
+                       ( wave_number(1)*(x(i,j,k)-phase_offset(1)) &
+                       + wave_number(2)*(y(i,j,k)-phase_offset(2)) &
+                       + wave_number(3)*(z(i,j,k)-phase_offset(3)) &
+                       + omega*(cctk_time-time_offset)))
+               end do
+            end do
+         end do
+         
+      else if (CCTK_EQUALS(initial_data, "noise")) then
+         
+         do k=1,cctk_lsh(3)
+            do j=1,cctk_lsh(2)
+               do i=1,cctk_lsh(1)
+                  call random_number (phi(i,j,k))
+                  call random_number (psix(i,j,k))
+                  call random_number (psiy(i,j,k))
+                  call random_number (psiz(i,j,k))
+               end do
+            end do
+         end do
+         
+      end if
+      end