select a Miller vector THIS IS NO USER FUNCTION
0001 function millerVector = selectMillerVector 0002 % select a Miller vector 0003 % 0004 % THIS IS NO USER FUNCTION 0005 0006 % The elk-library: convex geometry applied to crystallization modeling. 0007 % Copyright (C) 2013 Alexander Reinhold 0008 % 0009 % This program is free software: you can redistribute it and/or modify it 0010 % under the terms of the GNU General Public License as published by the 0011 % Free Software Foundation, either version 3 of the License, or (at your 0012 % option) any later version. 0013 % 0014 % This program is distributed in the hope that it will be useful, but 0015 % WITHOUT ANY WARRANTY; without even the implied warranty of 0016 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0017 % General Public License for more details. 0018 % 0019 % You should have received a copy of the GNU General Public License along 0020 % with this program. If not, see <http://www.gnu.org/licenses/>. 0021 0022 millerVector = []; 0023 while isempty(millerVector) 0024 try 0025 millerVector = input(' Enter vector: '); 0026 catch thisError 0027 warning(thisError.message) 0028 end 0029 if isempty(millerVector) || ~isnumeric(millerVector) || ... 0030 ~(length(millerVector) == 3) 0031 warning('Input format invalid, expecting a vector of length 3'); 0032 millerVector = []; 0033 end 0034 end