--- a/src/ChangeLog	Sun Feb 24 03:32:49 2008 -0500
+++ b/src/ChangeLog	Mon Feb 25 03:44:50 2008 -0500
@@ -1,3 +1,12 @@
+2008-02-25  John W. Eaton  <jwe@octave.org>
+
+	* graphics.h.in, graphics.cc (class row_vector_property): New class.	
+	(axes::properties): xlim, ylim, zlim, clim, alim, xtick, ytick,
+	ztick properties are now row_vector_property objects instead of
+	array_property objects.
+	* genprops.awk: Special case row_vector_property in the same way
+	as array_property.
+
 2008-02-22  John W. Eaton  <jwe@octave.org>
 
 	* DLD-FUNCTIONS/ccolamd.cc, DLD-FUNCTIONS/colamd.cc,

--- a/src/genprops.awk	Sun Feb 24 03:32:49 2008 -0500
+++ b/src/genprops.awk	Mon Feb 25 03:44:50 2008 -0500
@@ -244,7 +244,9 @@
   {
     if (emit_get[i])
     {
-      if (type[i] == "array_property" || type[i] == "any_property")
+      if (type[i] == "array_property" \
+	  || type[i] == "row_vector_property" \
+	  || type[i] == "any_property")
         emit_get_accessor(i, "octave_value", "get");
       else if (type[i] == "handle_property")
         emit_get_accessor(i, "graphics_handle", "handle_value");

--- a/src/graphics.cc	Sun Feb 24 03:32:49 2008 -0500
+++ b/src/graphics.cc	Mon Feb 25 03:44:50 2008 -0500
@@ -491,6 +491,36 @@
   return xok;
 }
 
+bool
+row_vector_property::validate (const octave_value& v)
+{
+  bool xok = false;
+
+  // FIXME: should we always support []?
+  if (v.is_empty () && v.is_double_type ())
+    return true;
+
+  // check value type
+  if (type_constraints.size () > 0)
+    {
+      for (std::list<std::string>::const_iterator it = type_constraints.begin ();
+           ! xok && it != type_constraints.end (); ++it)
+        if ((*it) == v.type_name ())
+          xok = true;
+    }
+  else
+    xok = v.is_double_type ();
+
+  if (xok)
+    {
+      dim_vector vdims = v.dims ();
+
+      xok = vdims.length () != 2 || (vdims(0) != 1 && vdims(1) != 1);
+    }
+
+  return xok;
+}
+
 void
 handle_property::set (const octave_value& v)
 {

--- a/src/graphics.h.in	Sun Feb 24 03:32:49 2008 -0500
+++ b/src/graphics.h.in	Mon Feb 25 03:44:50 2008 -0500
@@ -717,12 +717,48 @@
 private:
   OCTINTERP_API bool validate (const octave_value& v);
 
-private:
+protected:
   octave_value data;
   std::list<std::string> type_constraints;
   std::list<dim_vector> size_constraints;
 };
 
+class row_vector_property : public array_property
+{
+public:
+  row_vector_property (const std::string& nm, const graphics_handle& h,
+		       const octave_value& m)
+    : array_property (nm, h, m) { }
+
+  void set (const octave_value& v)
+    {
+      array_property::set (v);
+
+      if (! error_state)
+	{
+	  dim_vector dv = data.dims ();
+
+	  if (dv(0) > 1 && dv(1) == 1)
+	    {
+	      int tmp = dv(0);
+	      dv(0) = dv(1);
+	      dv(1) = tmp;
+
+	      data = data.reshape (dv);
+	    }
+	}
+    }
+
+  row_vector_property& operator = (const octave_value& val)
+    {
+      set (val);
+      return *this;
+    }
+
+private:
+  OCTINTERP_API bool validate (const octave_value& v);
+};
+
 // ---------------------------------------------------------------------
 
 class data_property : public base_property
@@ -2330,11 +2366,11 @@
       array_property dataaspectratio m , Matrix (1, 3, 1.0)
       radio_property dataaspectratiomode , "{auto}|manual"
       radio_property layer , "{bottom}|top"
-      array_property xlim mu , default_lim ()
-      array_property ylim mu , default_lim ()
-      array_property zlim mu , default_lim ()
-      array_property clim m , default_lim ()
-      array_property alim m , default_lim ()
+      row_vector_property xlim mu , default_lim ()
+      row_vector_property ylim mu , default_lim ()
+      row_vector_property zlim mu , default_lim ()
+      row_vector_property clim m , default_lim ()
+      row_vector_property alim m , default_lim ()
       radio_property xlimmode al , "{auto}|manual"
       radio_property ylimmode al , "{auto}|manual"
       radio_property zlimmode al , "{auto}|manual"
@@ -2349,9 +2385,9 @@
       bool_property xminorgrid , "off"
       bool_property yminorgrid , "off"
       bool_property zminorgrid , "off"
-      array_property xtick m , Matrix ()
-      array_property ytick m , Matrix ()
-      array_property ztick m , Matrix ()
+      row_vector_property xtick m , Matrix ()
+      row_vector_property ytick m , Matrix ()
+      row_vector_property ztick m , Matrix ()
       radio_property xtickmode , "{auto}|manual"
       radio_property ytickmode , "{auto}|manual"
       radio_property ztickmode , "{auto}|manual"
@@ -2429,11 +2465,6 @@
         colororder.add_constraint (dim_vector (-1, 3));
         dataaspectratio.add_constraint (dim_vector (1, 3));
         plotboxaspectratio.add_constraint (dim_vector (1, 3));
-        xlim.add_constraint (dim_vector (1, 2));
-        ylim.add_constraint (dim_vector (1, 2));
-        zlim.add_constraint (dim_vector (1, 2));
-        clim.add_constraint (dim_vector (1, 2));
-	alim.add_constraint (dim_vector (1, 2));
         xtick.add_constraint (dim_vector (1, -1));
         ytick.add_constraint (dim_vector (1, -1));
         ztick.add_constraint (dim_vector (1, -1));