affine_rotate a text canvas item

[Ryan Gammon <rggammon alumni uwaterloo ca>]

I'm trying to rotate a line of text by 10 degrees with the code below. 
In the rendered result, the text appears unrotated.

I'm using gnome_canvas_new_aa(), and libgnomecanvas version 2.0.4.

If you know of an application that successfully uses text rotation, or 
if you have any suggestions, I'd appreciate it.

   double rotate_affine[6];
   GnomeCanvasItem *item;
  
   item = gnome_canvas_item_new(GNOME_CANVAS_GROUP(graph->y_axis_group),
                         gnome_canvas_text_get_type(),
                         "x", (double)0,
                         "y", (double)0,
                         "anchor", GTK_ANCHOR_WEST,
                         "font", "variable",
                         "fill_color", "white",
                         "text","yabba dabba doo",
                         NULL);                   

  
   art_affine_rotate(rotate_affine, 10);
   gnome_canvas_item_affine_relative(item, rotate_affine);