Mercurial > hg > octave-nkf
diff scripts/plot/__go_draw_figure__.m @ 8889:665b264b6a50
Compatible support of figure paper properties and resolution for the gnuplot backend.
author | Ben Abbott <bpabbott@mac.com> |
---|---|
date | Sat, 28 Feb 2009 19:36:09 -0500 |
parents | 7d48766c21a5 |
children | eb63fbe60fab |
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--- a/scripts/plot/__go_draw_figure__.m +++ b/scripts/plot/__go_draw_figure__.m @@ -23,27 +23,43 @@ ## Author: jwe -function __go_draw_figure__ (h, plot_stream, enhanced, mono) +function __go_draw_figure__ (h, plot_stream, enhanced, mono, output_to_paper, implicit_margin) - if (nargin == 4) + if (nargin < 5) + output_to_paper = false; + elseif (nargin < 6) + ## Gnuplot has implicit margins for some output. For example, for postscript + ## the margin is 50pts. If not specified asssume 0. + implicit_margin = 0; + endif + + if (nargin >= 4 && nargin <= 6) htype = get (h, "type"); if (strcmp (htype, "figure")) ## Set figure properties here? + ## For output, determine the normalized paperposition. + if (output_to_paper) + orig_paper_units = get (h, "paperunits"); + unwind_protect + set (h, "paperunits", "inches"); + paper_size = get (h, "papersize"); + paper_position = get (h, "paperposition"); + paper_position = paper_position ./ paper_size([1, 2, 1, 2]); + implicit_margin = implicit_margin ./ paper_size([1, 2]); + unwind_protect_cleanup + set (h, "paperunits", orig_paper_units); + end_unwind_protect + else + implicit_margin = implicit_margin * [1 1]; + endif + ## Get complete list of children. kids = allchild (h); nkids = length (kids); if (nkids > 0) - axes_count = 0; - for i = 1:nkids - obj = __get__ (kids(i)); - switch (obj.type) - case "axes" - axes_count++; - endswitch - endfor fputs (plot_stream, "\nreset;\n"); fputs (plot_stream, "set autoscale fix;\n"); @@ -52,13 +68,29 @@ fputs (plot_stream, "set size 1, 1\n"); for i = 1:nkids - obj = get (kids(i)); - switch (obj.type) + type = get (kids(i), "type"); + switch (type) case "axes" - __go_draw_axes__ (kids (i), plot_stream, enhanced, mono); + ## Rely upon listener to convert axes position to "normalized" units. + orig_axes_units = get (kids(i), "units"); + orig_axes_position = get (kids(i), "position"); + unwind_protect + set (kids(i), "units", "normalized"); + if (output_to_paper) + axes_position_on_page = orig_axes_position .* paper_position([3, 4, 3 ,4]); + axes_position_on_page(1:2) = axes_position_on_page(1:2) + paper_position(1:2); + set (kids(i), "position", axes_position_on_page); + __go_draw_axes__ (kids(i), plot_stream, enhanced, mono, implicit_margin); + else + ## Return axes "units" and "position" back to their original values. + __go_draw_axes__ (kids(i), plot_stream, enhanced, mono, implicit_margin); + endif + unwind_protect_cleanup + set (kids(i), "units", orig_axes_units); + set (kids(i), "position", orig_axes_position); + end_unwind_protect otherwise - error ("__go_draw_figure__: unknown object class, %s", - obj.type); + error ("__go_draw_figure__: unknown object class, %s", type); endswitch endfor