diff options
Diffstat (limited to 'src/transformations/deformation.cpp')
| -rw-r--r-- | src/transformations/deformation.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/transformations/deformation.cpp b/src/transformations/deformation.cpp index 9221d39e..14f34e4e 100644 --- a/src/transformations/deformation.cpp +++ b/src/transformations/deformation.cpp @@ -172,7 +172,7 @@ static PJ_XYZ forward_3d(PJ_LPZ lpz, PJ *P) { out = in; if (Q->t_obs != HUGE_VAL) { - dt = Q->t_epoch - Q->t_obs; + dt = Q->t_obs - Q->t_epoch; } else { out = proj_coord_error(); /* in the 3D case +t_obs must be specified */ proj_log_debug(P, "deformation: +t_obs must be specified"); @@ -196,9 +196,9 @@ static PJ_COORD forward_4d(PJ_COORD in, PJ *P) { PJ_COORD out = in; if (Q->t_obs != HUGE_VAL) { - dt = Q->t_epoch - Q->t_obs; + dt = Q->t_obs - Q->t_epoch; } else { - dt = Q->t_epoch - in.xyzt.t; + dt = in.xyzt.t - Q->t_epoch ; } shift = get_grid_shift(P, in.xyz); @@ -219,7 +219,7 @@ static PJ_LPZ reverse_3d(PJ_XYZ in, PJ *P) { out.xyz = in; if (Q->t_obs != HUGE_VAL) { - dt = Q->t_epoch - Q->t_obs; + dt = Q->t_obs - Q->t_epoch; } else { out = proj_coord_error(); /* in the 3D case +t_obs must be specified */ proj_log_debug(P, "deformation: +t_obs must be specified"); @@ -238,9 +238,9 @@ static PJ_COORD reverse_4d(PJ_COORD in, PJ *P) { if (Q->t_obs != HUGE_VAL) { - dt = Q->t_epoch - Q->t_obs; + dt = Q->t_obs - Q->t_epoch; } else { - dt = Q->t_epoch - in.xyzt.t; + dt = in.xyzt.t - Q->t_epoch; } out.xyz = reverse_shift(P, in.xyz, dt); |