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1 ## Copyright (C) 2004-2008,2009 Carlo de Falco, Massimiliano Culpo |
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2 ## |
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3 ## This file is part of |
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4 ## |
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5 ## FPL - Fem PLotting package for octave |
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6 ## |
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7 ## FPL is free software; you can redistribute it and/or modify |
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8 ## it under the terms of the GNU General Public License as published by |
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9 ## the Free Software Foundation; either version 3 of the License, or |
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10 ## (at your option) any later version. |
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11 ## |
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12 ## FPL is distributed in the hope that it will be useful, |
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13 ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 ## GNU General Public License for more details. |
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16 ## |
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17 ## You should have received a copy of the GNU General Public License |
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18 ## along with FPL; If not, see <http://www.gnu.org/licenses/>. |
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19 ## |
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20 ## |
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21 ## AUTHORS: |
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22 ## Carlo de Falco <cdf _AT_ users.sourceforge.net> |
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23 ## |
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24 ## Culpo Massimiliano |
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25 ## Bergische Universitaet Wuppertal |
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26 ## Fachbereich C - Mathematik und Naturwissenschaften |
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27 ## Arbeitsgruppe fuer Angewandte MathematD-42119 Wuppertal Gaussstr. 20 |
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28 ## D-42119 Wuppertal, Germany |
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29 |
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30 ## -*- texinfo -*- |
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31 ## @deftypefn {Function File} {} FPL2dxoutputdata ( @var{filename}, @ |
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32 ## @var{p}, @var{t}, @var{u}, @var{attr_name}, @var{attr_rank}, @ |
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33 ## @var{attr_shape}, @var{endfile} ) |
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34 ## |
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35 ## Outputs data in DX form. |
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36 ## |
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37 ## Variable must be a scalar, vector or tensor of doubles |
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38 ## |
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39 ## @itemize @minus |
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40 ## @item @var{filename}= name of file to save (type string) |
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41 ## @item @var{p}, @var{t} = mesh |
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42 ## @item @var{u} = variable to save |
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43 ## @item @var{attr_name} = name of the variable (type string) |
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44 ## @item @var{attr_rank} = rank of variable data (0 for scalar, 1 for vector, etc.) |
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45 ## @item @var{attr_shape} = number of components of variable data (assumed 1 for scalar) |
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46 ## @item @var{endfile} = 0 if you want to add other variables to the |
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47 ## same file, 1 otherwise |
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48 ## @end itemize |
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49 ## @end deftypefn |
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50 |
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51 function FPL2dxoutputdata(filename,p,t,u,attr_name,attr_rank,attr_shape,endfile) |
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52 |
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53 p = p'; |
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54 t = t'; |
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55 t = t(:,1:3); |
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56 |
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57 fid=fopen (filename,'w'); |
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58 Nnodi = size(p,1); |
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59 Ntriangoli = size(t,1); |
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60 Ndati = size(u,1); |
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61 |
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62 fprintf(fid,"object ""pos""\nclass array type float rank 1 shape 2 items %d data follows",Nnodi); |
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63 |
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64 for i=1:Nnodi |
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65 fprintf(fid,"\n"); |
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66 fprintf(fid," %1.7e",p(i,:)); |
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67 endfor |
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68 |
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69 if (min(min(t))==1) |
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70 t=t-1; |
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71 elseif(min(min(t))~=0) |
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72 disp('WARNING: check triangle structure') |
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73 endif |
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74 ## In DX format nodes are |
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75 ## numbered starting from zero, |
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76 ## instead we want to number |
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77 ## them starting from 1! |
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78 ## Here we restore the DX |
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79 ## format |
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80 |
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81 fprintf(fid,"\n\nobject ""con""\nclass array type int rank 1 shape 3 items %d data follows",Ntriangoli); |
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82 for i=1:Ntriangoli |
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83 fprintf(fid,"\n"); |
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84 fprintf(fid," %d",t(i,:)); |
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85 endfor |
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86 |
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87 fprintf(fid,"\nattribute ""element type"" string ""triangles""\nattribute ""ref"" string ""positions""\n\n"); |
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88 |
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89 if ((attr_rank==0) && (min(size(u))==1)) |
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90 fprintf(fid,"object ""%s.data""\nclass array type double rank 0 items %d data follows",attr_name,Ndati); |
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91 fprintf(fid,"\n %1.7e",u); |
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92 |
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93 else |
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94 fprintf(fid,"object ""%s.data""\nclass array type double rank %d shape %d items %d data follows", ... |
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95 attr_name,attr_rank,attr_shape,Ndati); |
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96 for i=1:Ndati |
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97 fprintf(fid,"\n"); |
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98 fprintf(fid," %1.7e",u(i,:)); |
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99 endfor |
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100 |
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101 endif |
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102 |
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103 if Ndati==Nnodi |
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104 fprintf(fid,["\nattribute ""dep"" string ""positions""\n\n" ... |
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105 "object ""%s"" class field\n"... |
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106 "component ""positions"" value ""pos""\n"... |
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107 "component ""connections"" value ""con""\n"... |
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108 "component ""data"" value ""%s.data""\n"],... |
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109 attr_name,attr_name); |
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110 elseif Ndati==Ntriangoli |
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111 fprintf(fid,["\nattribute ""dep"" string ""connections""\n\n" ... |
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112 "object ""%s"" class field\n"... |
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113 "component ""positions"" value ""pos""\n"... |
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114 "component ""connections"" value ""con""\n"... |
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115 "component ""data"" value ""%s.data""\n"],... |
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116 attr_name,attr_name); |
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117 endif |
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118 |
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119 if(endfile) |
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120 fprintf(fid,"\nend\n"); |
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121 endif |
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122 |
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123 fclose (fid); |
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124 |
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125 |
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126 endfunction |
