Mercurial > forge
view main/vrml/inst/vrml_Background.m @ 9882:f129b3ea857d octave-forge
vrml: update license to GPLv3+
author | carandraug |
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date | Mon, 26 Mar 2012 19:03:54 +0000 |
parents | c799e02598b5 |
children | 28b882879c6e |
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## Copyright (C) 2002 Etienne Grossmann <etienne@cs.uky.edu> ## ## This program 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. ## ## This program 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 ## this program; if not, see <http://www.gnu.org/licenses/>. ## s = vrml_Background (...) - Vrml Background node ## ## s is a string of the form : ## ------------------------------------------------------------------ ## Background { ## skyColor [0 0 0] ## skyAngle [0] ## groundColor [0 0 0] ## groundangle [0] ## backUrl "" ## bottomUrl "" ## frontUrl "" ## leftUrl "" ## rightUrl "" ## topUrl "" ## } ## ------------------------------------------------------------------ ## ## Options : ## All the fields of the node ## ## Example : s = vrml_Background ("skyColor",[0 0 1]); ## function s = vrml_Background (varargin) hash = struct(varargin{:}); opts = struct ("skyColor", 3, "groundColor", 3, "skyAngle", 1, "groundAngle", 1, "backUrl", 0, "bottomUrl", 0, "frontUrl", 0, "leftUrl", 0, "rightUrl", 0, "topUrl", 0); body = ""; for [val,key] = hash, if isfield (opts, key) n = opts.(key); if (n == 0) if (ischar(val)) body = [ body, sprintf(' %-20s "%s"\n', key, val) ]; else error ("vrml_Background: field '%s' expects string", key); endif elseif (n == 1) if (isscalar(val)) body = [ body, sprintf(' %-20s [ %8.3f ]\n', key, val) ]; else error ("vrml_Background: field '%s' expects scalar", key); endif else if (isvector(val) && length(val) == 3) body = [body, sprintf(' %-20s [ %8.3f %8.3f %8.3f ]\n', key, val)]; else error ("vrml_Background: field '%s' expects [r g b]", key); endif endif else error ("vrml_Background : unknown field '%s'",key); end end s = sprintf ("Background { \n%s}\n", body); endfunction