Re: Checking for 2d or 3d plots

[bpabbott]

On 05 Aug, 2010,at 09:36 AM, Jordi Gutiérrez Hermoso <address@hidden> wrote:

What hopefully simple check can I make in graphics.cc in order to tell
if the plot is 2d or 3d? The use case is disabling rotation for 2d
plots.

Take a look at the function __calc_dimensions__ in __go_draw_axes__.m. I've cut-n-pasted it below. The input "obj" is the property structure for an axis. 

obj = get (gca);

function nd = __calc_dimensions__ (obj)

  kids = obj.children;

  nd = 2;

  for i = 1:length (kids)

    obj = get (kids(i));

    switch (obj.type)

      case {"image", "text"}

        ## ignore as they 

      case {"line", "patch"}

        if (! isempty (obj.zdata))

          nd = 3;

        endif

      case "surface"

        nd = 3;

      case "hggroup"

        obj_nd = __calc_dimensions__ (obj);

        if (obj_nd == 3)

          nd = 3;

        endif

    endswitch

  endfor

endfunction

Ben