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Re: improved surface: __go_draw_axes__
From: |
Kai Habel |
Subject: |
Re: improved surface: __go_draw_axes__ |
Date: |
Mon, 05 Nov 2007 08:41:11 +0100 |
User-agent: |
Thunderbird 2.0.0.6 (X11/20070801) |
John W. Eaton schrieb:
> On 4-Nov-2007, Kai Habel wrote:
>
> | I had to apply my changes to __go_draw_axes__.m manually, without the
> | possibility to check it now (I am recompiling now). So, there is a good
> | chance that something went wrong. I will check tomorrow and repost if
> | needed.
> |
> | Kai
> |
> | 2007-11-04 Kai Habel <address@hidden>
> |
> | * plot/__go_draw_axes__.m: Use pm3d mode for surface now
>
> I don't think you have posted this yet.
>
> Please send all the new files adn the patches for graphics.{cc,h.in}
> and __go_draw_axes__.m in a single message. Once you've done that,
> I'll take a look it.
>
> Thanks,
>
> jwe
>
>
Here they are,
Kai
2007-11-04 Kai Habel <address@hidden>
* plot/__go_draw_axes__.m: Use pm3d mode for surface now
* plot/shading.m: New function
* plot/surface.m: New function
* plot/mesh.m: Calls now surface.m
* plot/pcolor.m: New function
* plot/surf.m: New function
2007-11-04 Kai Habel <address@hidden>
* graphics.h.in (class surface): Add properties for surface, mash,
and cdata.
* graphics.cc (surface::properties::properties): Initialize added properties.
(surface::properties::set): Set added properties. Fix cut and paste
error for facealpha.
(surface::properties::get): Get added properties.
(surface::properties::factory_defaults): Set added properties.
--- __go_draw_axes__.m.orig 2007-11-04 23:15:06.000000000 +0100
+++ __go_draw_axes__.m 2007-11-04 23:30:59.000000000 +0100
@@ -193,6 +193,7 @@
xautoscale = strcmpi (axis_obj.xlimmode, "auto");
yautoscale = strcmpi (axis_obj.ylimmode, "auto");
zautoscale = strcmpi (axis_obj.zlimmode, "auto");
+ cautoscale = strcmpi (axis_obj.climmode, "auto");
kids = axis_obj.children;
@@ -201,9 +202,9 @@
data = cell ();
is_image_data = [];
- xminp = yminp = zminp = Inf;
- xmax = ymax = zmax = -Inf;
- xmin = ymin = zmin = Inf;
+ xminp = yminp = zminp = cminp = Inf;
+ xmax = ymax = zmax = cmax = -Inf;
+ xmin = ymin = zmin = cmin = Inf;
[view_cmd, view_fcn, view_zoom] = image_viewer ();
use_gnuplot_for_images = (ischar (view_fcn)
@@ -572,96 +573,149 @@
endfor
case "surface"
- data_idx++;
- is_image_data(data_idx) = false;
- parametric(data_idx) = false;
- [style, typ, with] = do_linestyle_command (obj, data_idx,
plot_stream);
- if (isempty (obj.keylabel))
- titlespec{data_idx} = "title \"\"";
- else
- tmp = undo_string_escapes (obj.keylabel);
- titlespec{data_idx} = strcat ("title \"", tmp, "\"");
- endif
- usingclause{data_idx} = "";
- if (have_newer_gnuplot || isnan (typ))
- withclause{data_idx} = sprintf ("with %s linestyle %d",
- style, data_idx);
- else
- withclause{data_idx} = sprintf ("with %s linetype %d %s",
- style, typ, with);
- endif
- nd = 3;
- xdat = obj.xdata;
- ydat = obj.ydata;
- zdat = obj.zdata;
- if (xautoscale)
- tx = xdat(:);
- [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx);
- endif
- if (yautoscale)
- ty = ydat(:);
- [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ty);
- endif
- if (zautoscale)
- tz = zdat(:);
- [zmin, zmax, zminp] = get_data_limits (zmin, zmax, zminp, tz);
- endif
- err = false;
- if (isvector (xdat) && isvector (ydat) && ismatrix (zdat))
- if (rows (zdat) == length (ydat) && columns (zdat) == length (xdat))
- [xdat, ydat] = meshgrid (xdat, ydat);
+ nd = 4;
+ if !((strncmp(obj.edgecolor,"none",4)) &&
(strncmp(obj.facecolor,"none",4)))
+ data_idx++;
+ is_image_data(data_idx) = false;
+ parametric(data_idx) = false;
+ [style, typ, with] = do_linestyle_command (obj, data_idx,
plot_stream);
+ if (isempty (obj.keylabel))
+ titlespec{data_idx} = "title \"\"";
else
- err = true;
+ tmp = undo_string_escapes (obj.keylabel);
+ titlespec{data_idx} = strcat ("title \"", tmp, "\"");
+ endif
+ usingclause{data_idx} = "";
+ if (have_newer_gnuplot || isnan (typ))
+ withclause{data_idx} = sprintf ("with %s linestyle %d",
+ style, data_idx);
+ else
+ withclause{data_idx} = sprintf ("with %s linetype %d %s",
+ style, typ, with);
+ endif
+
+ xdat = obj.xdata;
+ ydat = obj.ydata;
+ zdat = obj.zdata;
+ cdat = obj.cdata;
+
+ if (xautoscale)
+ tx = xdat(:);
+ [xmin, xmax, xminp] = get_data_limits (xmin, xmax, xminp, tx);
endif
- elseif (ismatrix (xdat) && ismatrix (ydat) && ismatrix (zdat))
- if (! (size_equal (xdat, ydat) && size_equal (xdat, zdat)))
+ if (yautoscale)
+ ty = ydat(:);
+ [ymin, ymax, yminp] = get_data_limits (ymin, ymax, yminp, ty);
+ endif
+ if (zautoscale)
+ tz = zdat(:);
+ [zmin, zmax, zminp] = get_data_limits (zmin, zmax, zminp, tz);
+ endif
+ if (cautoscale)
+ tc = cdat(:);
+ [cmin, cmax, cminp] = get_data_limits (cmin, cmax, cminp, tc);
+ endif
+
+ err = false;
+ if (! size_equal(zdat, cdat))
err = true;
+ endif
+ if (isvector (xdat) && isvector (ydat) && ismatrix (zdat))
+ if (rows (zdat) == length (ydat) && columns (zdat) == length
(xdat))
+ [xdat, ydat] = meshgrid (xdat, ydat);
+ else
+ err = true;
+ endif
+ elseif (ismatrix (xdat) && ismatrix (ydat) && ismatrix (zdat))
+ if (! (size_equal (xdat, ydat) && size_equal (xdat, zdat)))
+ err = true;
+ endif
+ else
+ err = true;
endif
- else
- err = true;
- endif
- if (err)
- error ("__go_draw_axes__: invalid grid data");
- endif
- xlen = columns (zdat);
- ylen = rows (zdat);
- if (xlen == columns (xdat) && xlen == columns (ydat)
- && ylen == rows (xdat) && ylen == rows (ydat))
- len = 3 * xlen;
- zz = zeros (ylen, len);
- k = 1;
- for kk = 1:3:len
- zz(:,kk) = xdat(:,k);
- zz(:,kk+1) = ydat(:,k);
- zz(:,kk+2) = zdat(:,k);
- k++;
- endfor
- data{data_idx} = zz;
- endif
- usingclause{data_idx} = "using ($1):($2):($3)";
- withclause{data_idx} = "with line palette";
+ if (err)
+ error ("__go_draw_axes__: invalid grid data");
+ endif
+ xlen = columns (zdat);
+ ylen = rows (zdat);
+ if (xlen == columns (xdat) && xlen == columns (ydat)
+ && ylen == rows (xdat) && ylen == rows (ydat))
+ len = 4 * xlen;
+ zz = zeros (ylen, len);
+ k = 1;
+ for kk = 1:4:len
+ zz(:,kk) = xdat(:,k);
+ zz(:,kk+1) = ydat(:,k);
+ zz(:,kk+2) = zdat(:,k);
+ zz(:,kk+3) = cdat(:,k);
+ k++;
+ endfor
+ data{data_idx} = zz;
+ endif
+ usingclause{data_idx} = "using ($1):($2):($3):($4)";
+ withclause{data_idx} = "with line palette";
- fputs (plot_stream, "unset parametric;\n");
- fputs (plot_stream, "set hidden3d;\n");
- fputs (plot_stream, "set style data lines;\n");
- fputs (plot_stream, "set surface;\n");
- fputs (plot_stream, "unset contour;\n");
- fprintf (plot_stream, "set cbrange [%g:%g];\n", zmin, zmax);
-
- if (have_newer_gnuplot)
- surf_colormap = parent_figure_obj.colormap;
- palette_size = rows (surf_colormap);
- fprintf (plot_stream,
- "set palette positive color model RGB maxcolors %i;\n",
- palette_size);
- fprintf (plot_stream,
- "set palette file \"-\" binary record=%d using 1:2:3:4;\n",
- palette_size);
- fwrite (plot_stream, [1:palette_size; surf_colormap'], "float32");
- else
- fputs (plot_stream, "set palette defined (0 \"dark-blue\", 1
\"blue\", 2 \"cyan\", 3 \"yellow\", 4 \"red\" , 5 \"dark-red\");\n");
+ fputs (plot_stream, "unset parametric;\n");
+ fputs (plot_stream, "set hidden3d;\n");
+ fputs (plot_stream, "set style data lines;\n");
+ fputs (plot_stream, "set surface;\n");
+ fputs (plot_stream, "unset contour;\n");
+ fprintf (plot_stream, "set cbrange [%g:%g];\n", cmin, cmax);
+
+ if (have_newer_gnuplot)
+ ## Interpolation does not work for flat surfaces (e.g. pcolor)
+ ## and color mapping --> currently set empty
+ interp_str = "";
+ surf_colormap = parent_figure_obj.colormap;
+ flat_interp_face = strncmp(obj.facecolor,"flat",4) ||
strncmp(obj.facecolor,"interp",6);
+ flat_interp_edge = strncmp(obj.edgecolor,"flat",4) ||
strncmp(obj.edgecolor,"interp",6);
+ palette_data = [];
+
+ if ((flat_interp_face) ||
+ (flat_interp_edge && strncmp(obj.facecolor,"none",4)))
+ palette_data = [1:rows(surf_colormap); surf_colormap'];
+ endif
+
+ if (isnumeric(obj.facecolor))
+ palette_data = [1:2; [obj.facecolor; obj.facecolor]'];
+ endif
+
+ if ((strncmp(obj.facecolor,"none",4) &&
isnumeric(obj.edgecolor)))
+ palette_data = [1:2; [obj.edgecolor; obj.edgecolor]'];
+ endif
+
+ if (strncmp(obj.facecolor,"none",4))
+ elseif (flat_interp_face && strncmp(obj.edgecolor,"flat",4))
+ fprintf (plot_stream, "set pm3d at s %s\n", interp_str);
+ else
+ if (strncmp(obj.edgecolor,"none",4))
+ fprintf (plot_stream, "set pm3d at s %s\n", interp_str);
+ else
+ edgecol = obj.edgecolor;
+ if (ischar(obj.edgecolor))
+ edgecol = [0 0 0];
+ endif
+ fprintf (plot_stream, "set pm3d at s hidden3d %d %s \n",
data_idx, interp_str);
+ fprintf (plot_stream,
+ "set style line %d linecolor rgb \"#%02x%02x%02x\"
lw %f\n",
+ data_idx, round (255*edgecol), obj.linewidth);
+ endif
+ endif
+
+ if (length(palette_data) > 0)
+ fprintf (plot_stream,
+ "set palette positive color model RGB maxcolors %i;\n",
+ columns(palette_data));
+ fprintf (plot_stream,
+ "set palette file \"-\" binary record=%d using
1:2:3:4;\n",
+ columns(palette_data));
+ fwrite (plot_stream, palette_data, "float32");
+ endif
+ else
+ fputs (plot_stream, "set palette defined (0 \"dark-blue\", 1
\"blue\", 2 \"cyan\", 3 \"yellow\", 4 \"red\" , 5 \"dark-red\");\n");
+ endif
+ fputs (plot_stream, "unset colorbox;\n");
endif
- fputs (plot_stream, "unset colorbox;\n");
case "text"
lpos = obj.position;
--- graphics.cc 2007-10-31 21:29:19.000000000 +0100
+++ graphics.cc.new 2007-11-04 22:17:02.000000000 +0100
@@ -2252,7 +2252,7 @@
else if (name.compare ("facecolor"))
retval = facecolor;
else if (name.compare ("facealpha"))
- retval = facecolor;
+ retval = facealpha;
else if (name.compare ("egdecolor"))
retval = edgecolor;
else if (name.compare ("linestyle"))
@@ -2308,6 +2308,16 @@
xdata (Matrix ()),
ydata (Matrix ()),
zdata (Matrix ()),
+ cdata (Matrix ()),
+ facecolor (radio_values ("{flat}|none|interp")),
+ facealpha (1.0),
+ edgecolor (color_values(0, 0, 0), radio_values ("flat|none|interp")),
+ linestyle ("-"),
+ linewidth (0.5),
+ marker ("none"),
+ markeredgecolor ("auto"),
+ markerfacecolor ("none"),
+ markersize (1),
keylabel ("")
{ }
@@ -2332,6 +2342,26 @@
set_ydata (val);
else if (name.compare ("zdata"))
set_zdata (val);
+ else if (name.compare ("cdata"))
+ set_cdata (val);
+ else if (name.compare ("facecolor"))
+ set_facecolor (val);
+ else if (name.compare ("facealpha"))
+ set_facealpha (val);
+ else if (name.compare ("edgecolor"))
+ set_edgecolor (val);
+ else if (name.compare ("linestyle"))
+ set_linestyle (val);
+ else if (name.compare ("linewidth"))
+ set_linewidth (val);
+ else if (name.compare ("marker"))
+ set_marker (val);
+ else if (name.compare ("markeredgecolor"))
+ set_markeredgecolor (val);
+ else if (name.compare ("markerfacecolor"))
+ set_markerfacecolor (val);
+ else if (name.compare ("markersize"))
+ set_markersize (val);
else if (name.compare ("keylabel"))
set_keylabel (val);
else
@@ -2356,6 +2386,16 @@
m.assign ("xdata", xdata);
m.assign ("ydata", ydata);
m.assign ("zdata", zdata);
+ m.assign ("cdata", cdata);
+ m.assign ("facecolor", facecolor);
+ m.assign ("facealpha", facealpha);
+ m.assign ("edgecolor", edgecolor);
+ m.assign ("linestyle", linestyle);
+ m.assign ("linewidth", linewidth);
+ m.assign ("marker", marker);
+ m.assign ("markeredgecolor", markeredgecolor);
+ m.assign ("markerface", markerfacecolor);
+ m.assign ("markersize", markersize);
m.assign ("keylabel", keylabel);
return m;
@@ -2380,6 +2420,26 @@
retval = ydata;
else if (name.compare ("zdata"))
retval = zdata;
+ else if (name.compare ("cdata"))
+ retval = cdata;
+ else if (name.compare ("facecolor"))
+ retval = facecolor;
+ else if (name.compare ("facealpha"))
+ retval = facealpha;
+ else if (name.compare ("edgecolor"))
+ retval = edgecolor;
+ else if (name.compare ("linestyle"))
+ retval = linestyle;
+ else if (name.compare ("linewidth"))
+ retval = linewidth;
+ else if (name.compare ("marker"))
+ retval = marker;
+ else if (name.compare ("markeredgecolor"))
+ retval = markeredgecolor;
+ else if (name.compare ("markerfacecolor"))
+ retval = markerfacecolor;
+ else if (name.compare ("markersize"))
+ retval = markersize;
else if (name.compare ("keylabel"))
retval = keylabel;
else
@@ -2396,6 +2456,16 @@
m["xdata"] = Matrix ();
m["ydata"] = Matrix ();
m["zdata"] = Matrix ();
+ m["cdata"] = Matrix ();
+ m["facecolor"] = color_property();
+ m["facealpha"] = 1.0;
+ m["edgecolor"] = color_property("black");
+ m["linestyle"] = "-";
+ m["linewidth"] = 0.5;
+ m["marker"] = "none";
+ m["markeredgecolor"] = "auto";
+ m["markerfacecolor"] = "none";
+ m["markersize"] = 1;
m["keylabel"] = "";
return m;
--- graphics.h.in 2007-10-24 02:32:44.000000000 +0200
+++ graphics.h.in.new 2007-11-04 22:21:39.000000000 +0100
@@ -1698,6 +1698,16 @@
octave_value xdata
octave_value ydata
octave_value zdata
+ octave_value cdata
+ color_property facecolor a
+ octave_value facealpha
+ color_property edgecolor a
+ octave_value linestyle
+ octave_value linewidth
+ octave_value marker
+ octave_value markeredgecolor
+ octave_value markerfacecolor
+ octave_value markersize
octave_value keylabel
END_PROPERTIES
## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
## 2005, 2006, 2007 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {} mesh (@var{x}, @var{y}, @var{z})
## Plot a mesh given matrices @var{x}, and @var{y} from @code{meshgrid} and
## a matrix @var{z} corresponding to the @var{x} and @var{y} coordinates of
## the mesh. If @var{x} and @var{y} are vectors, then a typical vertex
## is (@var{x}(j), @var{y}(i), @var{z}(i,j)). Thus, columns of @var{z}
## correspond to different @var{x} values and rows of @var{z} correspond
## to different @var{y} values.
## @seealso{meshgrid, contour}
## @end deftypefn
## Author: jwe
function h = mesh (varargin)
newplot ();
tmp = surface (varargin{:});
ax = get(tmp, "parent");
set (tmp, "FaceColor", "none");
set (tmp, "EdgeColor", "flat");
set (ax, "view", [-37.5, 30]);
if (nargout > 0)
h = tmp;
endif
endfunction
## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
## 2005, 2006, 2007 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {} pcolor (@var{x}, @var{y}, @var{c})
## @deftypefnx {Function File} {} pcolor (@var{c})
## Density plot for given matrices @var{x}, and @var{y} from @code{meshgrid} and
## a matrix @var{c} corresponding to the @var{x} and @var{y} coordinates of
## the mesh. If @var{x} and @var{y} are vectors, then a typical vertex
## is (@var{x}(j), @var{y}(i), @var{c}(i,j)). Thus, columns of @var{c}
## correspond to different @var{x} values and rows of @var{c} correspond
## to different @var{y} values.
## @seealso{meshgrid, contour}
## @end deftypefn
## Author: jwe
function h = pcolor (x,y,c)
newplot ();
if (nargin == 1)
C = x;
Z = zeros(size(C));
[nr, nc] = size(C);
[X, Y] = meshgrid(1:nr, 1:nc);
elseif (nargin == 3)
Z = zeros(size(C));
else
print_usage();
end;
tmp = surface (X,Y,Z,C);
ax = get(tmp, "parent");
set (tmp, "FaceColor", "flat");
set (ax, "view", [0, 90]);
if (nargout > 0)
h = tmp;
endif
endfunction
## Copyright (C) 2006,2007 Kai Habel
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, write to the Free
## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301, USA.
## -*- texinfo -*-
## @deftypefn {Function File} shading (@var{type})
## @deftypefnx {Function File} shading (@var{ax}, ...)
##
## Sets the shading of surface or patch graphic objects. Valid arguments for
## @var{type} are "flat", "interp", or "faceted".
## If @var{ax} is given the shading is applied to axis @var{ax} instead of the
## current axis.
##
## @example
## shading ("interp")
## @end example
##
## @end deftypefn
function shading(ax, mode)
if (nargin == 1)
mode = ax;
ax = gca();
end
if ((nargin !=1 ) && (nargin != 2))
print_usage();
end
obj = findobj(ax,"Type","patch");
obj = [obj; findobj(ax,"Type","surface")];
for n = 1 : length(obj)
h = obj(n);
if strcmp(mode, "flat")
set(h,"FaceColor","flat");
set(h,"EdgeColor","none");
elseif strcmp(mode,"interp")
set(h,"FaceColor","interp");
set(h,"EdgeColor","none");
elseif strcmp(mode,"faceted")
set(h,"FaceColor","flat");
set(h,"EdgeColor",[0 0 0]);
else
error("unknown argument")
endif
endfor
drawnow
endfunction
## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
## 2005, 2006, 2007 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {} surf (@var{x}, @var{y}, @var{z})
## Plot a surface given matrices @var{x}, and @var{y} from @code{meshgrid} and
## a matrix @var{z} corresponding to the @var{x} and @var{y} coordinates of
## the mesh. If @var{x} and @var{y} are vectors, then a typical vertex
## is (@var{x}(j), @var{y}(i), @var{z}(i,j)). Thus, columns of @var{z}
## correspond to different @var{x} values and rows of @var{z} correspond
## to different @var{y} values.
## @seealso{mesh, surface}
## @end deftypefn
## Author: jwe
function h = surf (varargin)
newplot ();
tmp = surface (varargin{:});
ax = get(tmp, "parent");
set (tmp, "FaceColor", "flat");
set (ax, "view", [-37.5, 30]);
if (nargout > 0)
h = tmp;
endif
endfunction
## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
## 2005, 2006, 2007 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} @var{h} = {} surface (@var{x}, @var{y}, @var{z},
@var{c})
## @deftypefnx {Function File} @var{h} = {} surface (@var{x}, @var{y}, @var{z})
## Plot a surface graphic object given matrices @var{x}, and @var{y} from
@code{meshgrid} and
## a matrix @var{z} corresponding to the @var{x} and @var{y} coordinates of
## the surface. If @var{x} and @var{y} are vectors, then a typical vertex
## is (@var{x}(j), @var{y}(i), @var{z}(i,j)). Thus, columns of @var{z}
## correspond to different @var{x} values and rows of @var{z} correspond
## to different @var{y} values.
## @seealso{surf, mesh, patch, line}
## @end deftypefn
## Author: jwe
function h = surface (x, y, z, c)
ax = gca();
if (nargin == 1)
c = z = x;
if (ismatrix (z))
[nr, nc] = size (z);
x = 1:nc;
y = (1:nr)';
else
error ("surface: argument must be a matrix");
endif
elseif (nargin == 3)
if (isvector (x) && isvector (y) && ismatrix (z))
if (rows (z) == length (y) && columns (z) == length (x))
x = x(:)';
y = y(:);
else
msg = "surface: rows (z) must be the same as length (y) and";
msg = sprintf ("%s\ncolumns (z) must be the same as length (x)", msg);
error (msg);
endif
elseif (ismatrix (x) && ismatrix (y) && ismatrix (z))
if (! (size_equal (x, y) && size_equal (x, z)))
error ("surface: x, y, and z must have same dimensions");
endif
c = z;
else
error ("surface: x and y must be vectors and z must be a matrix");
endif
elseif (nargin == 4)
if !(size_equal (z, c))
error ("surface: z and c must have same size");
endif
if (isvector (x) && isvector (y) && ismatrix (z))
if (rows (z) == length (y) && columns (z) == length (x))
x = x(:)';
y = y(:);
else
msg = "surface: rows (z) must be the same as length (y) and";
msg = sprintf ("%s\ncolumns (z) must be the same as length (x)", msg);
error (msg);
endif
elseif (ismatrix (x) && ismatrix (y) && ismatrix (z))
if (! (size_equal (x, y) && size_equal (x, z)))
error ("surface: x, y, and z must have same dimensions");
endif
else
error ("surface: x and y must be vectors and z must be a matrix");
endif
else
print_usage ();
endif
## make a default surface object
tmp = __go_surface__ (ax, "xdata", x, "ydata", y, "zdata", z, "cdata", c);
set (ax, "view", [0, 90], "box", "off");
set (tmp, "FaceColor","flat");
if (nargout > 0)
h = tmp;
endif
endfunction
- improved surface: __go_draw_axes__, Kai Habel, 2007/11/04
- improved surface: __go_draw_axes__, John W. Eaton, 2007/11/04
- Re: improved surface: __go_draw_axes__,
Kai Habel <=
- Re: improved surface: __go_draw_axes__, Kai Habel, 2007/11/05
- Re: improved surface: __go_draw_axes__, John W. Eaton, 2007/11/06
- Re: improved surface: __go_draw_axes__, David Bateman, 2007/11/06
- Re: improved surface: __go_draw_axes__, John W. Eaton, 2007/11/06
- Re: improved surface: __go_draw_axes__, David Bateman, 2007/11/06
- Re: improved surface: __go_draw_axes__, John W. Eaton, 2007/11/07
- Re: improved surface: __go_draw_axes__, David Bateman, 2007/11/07
- Re: improved surface: __go_draw_axes__, David Bateman, 2007/11/06
- Re: improved surface: __go_draw_axes__, David Bateman, 2007/11/06
- Re: improved surface: __go_draw_axes__, David Bateman, 2007/11/06