## Copyright (C) 2002 Etienne Grossmann. All rights reserved. ## ## 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 2, or (at your option) any ## later version. ## ## This 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. ## s = vrml_select_points (x, state) - vrml code for selecting 3D points ## ## x : 3 x P : 3D points ## state : P : 0-1 matrix specifying currently selected points ## or Q : List of indices of currently selected points ## Default=zeros(1,P) ## sphere: bool : If true represent points as spheres instead of cubes. ## ## s : string : vrml code representing points in x as spheres that ## change color (green to/from blue) when clicked upon. ## ## See select_3D_points() for complete 3D point selection interface. ## Author : Etienne Grossmann <etienne@isr.ist.utl.pt> function s = vrml_select_points (x, state, sphere) printf("vrml_select_points does not work any more. Sorry\n"); return P = columns (x); if nargin < 2, state = zeros (1,P); # Default : nothing pre-selected else state = state(:)'; if length (state) != P || any (state != 1 & state != 0), tmp = zeros (1,P); tmp(state) = 1; state = tmp; ## state = loose (state, P)'; end end if nargin < 3, sphere = 0; end diam = 0.1 * mean (sqrt (sum ((x-mean(x')'*ones(1,P)).^2))) ; ## For odb ## Depends: defSpeakSphere.wrl defSpeakBox.wrl if sphere proto = "data/defSpeakSphere.wrl" ; else proto = "data/defSpeakBox.wrl" ; end s0 = slurp_file (proto); # Pre-selected spheres will be lighter-colored col1 = *ones(1,P); if any (state), col1(:,find(state)) = *ones(1,sum(state)); end tp = "SpeakSphere {col1 %8.3f %8.3f %8.3f state %i pos %8.3g %8.3g %8.3g scale %8.3g %8.3g %8.3g tag \"%i\"}\n"; s1 = sprintf (tp, [col1; state; x; diam*ones(3,P);1:P]); s = [s0,s1]; endfunction

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