diff --git a/src/USER-MISC/dihedral_table.cpp b/src/USER-MISC/dihedral_table.cpp
index 7209faecf0..64f8a5f743 100644
--- a/src/USER-MISC/dihedral_table.cpp
+++ b/src/USER-MISC/dihedral_table.cpp
@@ -49,9 +49,6 @@ using namespace std;
 using namespace LAMMPS_NS;
 using namespace DIHEDRAL_TABLE_NS;
 
-#define MIN(A,B) ((A) < (B)) ? (A) : (B)
-#define MAX(A,B) ((A) > (B)) ? (A) : (B)
-
 /* ---------------------------------------------------------------------- */
 
 DihedralTable::DihedralTable(LAMMPS *lmp) : Dihedral(lmp)
diff --git a/src/dump_image.cpp b/src/dump_image.cpp
index e4b51c627b..7a463711ec 100644
--- a/src/dump_image.cpp
+++ b/src/dump_image.cpp
@@ -73,9 +73,16 @@ DumpImage::DumpImage(LAMMPS *lmp, int narg, char **arg) :
   else if (strcmp(arg[6],"element") == 0) adiam = ELEMENT;
 
   // create Image class
+  // change defaults for 2d
 
   image = new Image(lmp);
 
+  if (domain->dimension == 2) {
+    image->theta = 0.0;
+    image->phi = 0.0;
+    image->up[0] = 0.0; image->up[1] = 1.0; image->up[2] = 0.0;
+  }
+
   // set defaults for optional args
 
   atomflag = YES;
@@ -92,12 +99,6 @@ DumpImage::DumpImage(LAMMPS *lmp, int narg, char **arg) :
   cx = cy = cz = 0.5;
   cxstr = cystr = czstr = NULL;
 
-  if (domain->dimension == 3) {
-    image->up[0] = 0.0; image->up[1] = 0.0; image->up[2] = 1.0;
-  } else {
-    image->up[0] = 0.0; image->up[1] = 1.0; image->up[2] = 0.0;
-  }
-
   upxstr = upystr = upzstr = NULL;
   zoomstr = NULL;
   perspstr = NULL;
@@ -343,6 +344,7 @@ DumpImage::DumpImage(LAMMPS *lmp, int narg, char **arg) :
   if (thetastr || phistr || cflag == DYNAMIC || 
       upxstr || upystr || upzstr || zoomstr || perspstr) viewflag = DYNAMIC;
 
+  box_bounds();
   if (cflag == STATIC) box_center();
   if (viewflag == STATIC) view_params();
 
@@ -478,6 +480,7 @@ void DumpImage::write()
 
   // reset box center and view parameters if dynamic
 
+  box_bounds();
   if (cflag == DYNAMIC) box_center();
   if (viewflag == DYNAMIC) view_params();
 
@@ -546,8 +549,6 @@ void DumpImage::box_bounds()
 
 void DumpImage::box_center()
 {
-  box_bounds();
-
   if (cxstr) cx = input->variable->compute_equal(cxvar);
   if (cystr) cy = input->variable->compute_equal(cyvar);
   if (czstr) cz = input->variable->compute_equal(czvar);
@@ -594,10 +595,6 @@ void DumpImage::view_params()
   if (perspstr) image->persp = input->variable->compute_equal(perspvar);
   if (image->persp < 0.0) error->all(FLERR,"Invalid dump image persp value");
 
-  // current simulation box bounds
-
-  box_bounds();
-
   // remainder of view setup is internal to Image class
 
   image->view_params(boxxlo,boxxhi,boxylo,boxyhi,boxzlo,boxzhi);
diff --git a/src/image.cpp b/src/image.cpp
index 9fa87eae93..0792e70d5a 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -51,7 +51,7 @@ Image::Image(LAMMPS *lmp) : Pointers(lmp)
   MPI_Comm_rank(world,&me);
   MPI_Comm_size(world,&nprocs);
 
-  // defaults
+  // defaults for 3d viz
 
   width = height = 512;
   theta = 60.0 * MY_PI/180.0;
@@ -61,6 +61,10 @@ Image::Image(LAMMPS *lmp) : Pointers(lmp)
   shiny = 1.0;
   ssao = NO;
 
+  up[0] = 0.0;
+  up[1] = 0.0;
+  up[2] = 1.0;
+
   // colors
 
   ncolors = 0;