1 | function [data datatype]=processdata(md,data,options);
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2 | %PROCESSDATA - process data to be plotted
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3 | %
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4 | % datatype = 1 -> elements
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5 | % datatype = 2 -> nodes
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6 | % datatype = 3 -> node quivers
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7 | % datatype = 4 -> patch
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8 | %
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9 | % Usage:
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10 | % [data datatype]=processdata(md,data,options);
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11 | %
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12 | % See also: PLOTMODEL, PROCESSMESH
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13 |
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14 | %check format
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15 | if (iscell(data) | isempty(data) | length(data)==0 | (length(data)==1 & ~isstruct(data) & isnan(data))),
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16 | error('plotmodel error message: data provided is empty');
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17 | end
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18 |
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19 | %Process Patch
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20 | if isstruct(data)
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21 | if (isfield(data,'index') & isfield(data,'value')),
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22 | if data.interpolation(1)==P1Enum(),
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23 | data=data.value;
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24 | data=data';
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25 | data=data(:);
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26 | datatype=4;
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27 | elseif data.interpolation(1)==P0Enum(),
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28 | data=data.value;
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29 | datatype=5;
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30 | else
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31 | error(['interpolation ' data.interpolation(1) ' not supported yet']);
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32 | end
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33 | else
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34 | error('structure other than Patch not supported yet');
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35 | end
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36 | else
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37 | %initialize datatype
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38 | datatype=0;
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39 | end
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40 |
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41 | %get datatype
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42 | datasize=size(data);
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43 |
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44 | %non patch processing
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45 | if datatype~=4 & datatype~=5,
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46 |
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47 | %transpose data if necessary
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48 | if (size(data,2) > size(data,1)),
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49 | data=data';
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50 | end
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51 | datasize=size(data);
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52 |
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53 | %convert to double if necessary
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54 | if ~isnumeric(data);
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55 | disp('processdata info message: data is not numeric (logical?). Converted to double');
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56 | data=double(data);
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57 | end
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58 |
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59 | %check length
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60 | if datasize(1)~=md.numberofnodes & datasize(1)~=md.numberofelements & datasize(1)~=md.numberofnodes*6 & (md.dim==3 & ~(datasize(1)==md.numberofelements2d | datasize(1)==md.numberofnodes2d))
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61 | error('plotmodel error message: data not supported yet');
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62 | end
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63 |
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64 | %quiver?
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65 | if datasize(2)>1,
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66 | datatype=3;
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67 |
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68 | %check number of columns, add zeros if necessary,
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69 | if (md.dim==3)
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70 | if datasize(2)==2,
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71 | data=[data, zeros(datasize(1),1)];
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72 | elseif datasize(2)~=3,
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73 | error('plotmodel error message: data provided should have 2 or 3 columns for quiver plot, and 1 for regular plot');
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74 | end
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75 | %elseif ((md.dim==2) & datasize(2)~=2),
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76 | % error('plotmodel error message: data provided should have 2 columns for quiver plot, and 1 for regular plot');
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77 | end
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78 | end
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79 |
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80 | %treat the case datasize(1)=6*nodes
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81 | if datasize(1)==6*md.numberofnodes
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82 | %keep the only norm of data
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83 | data1=data(1:6:md.numberofnodes*6,:);
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84 | data2=data(2:6:md.numberofnodes*6,:);
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85 | data=sqrt(data1.^2+data2.^2);
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86 | datasize(1)=md.numberofnodes;
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87 | %---> go to node data
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88 | end
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89 |
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90 | %treat the case datasize(1)=nodes2d
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91 | if (md.dim==3 & datasize(1)==md.numberofnodes2d),
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92 | data=project3d(md,data,'node');
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93 | datasize(1)=md.numberofnodes;
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94 | %---> go to node data
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95 | end
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96 |
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97 | %treat the case datasize(1)=nodes2d
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98 | if (md.dim==3 & datasize(1)==md.numberofelements2d),
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99 | data=project3d(md,data,'element');
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100 | datasize(1)=md.numberofelements;
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101 | %---> go to node data
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102 | end
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103 |
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104 | %smoothing?
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105 | if exist(options,'smooth')
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106 | data=averaging(md,data,getfieldvalue(options,'smooth'));
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107 | datasize(1)=md.numberofnodes;
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108 | %---> go to node data
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109 | end
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110 | end
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111 |
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112 | %element data
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113 | if (datasize(1)==md.numberofelements & datasize(2)==1),
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114 |
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115 | %Initialize datatype if non patch
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116 | if datatype~=4 & datatype~=5,
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117 | datatype=1;
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118 | end
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119 |
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120 | %Mask?
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121 | if exist(options,'mask'),
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122 | flags=getfieldvalue(options,'mask');
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123 | pos=find(~flags);
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124 | if length(flags)==md.numberofnodes,
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125 | [pos2 dummy]=find(ismember(md.elements,pos));
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126 | data(pos2,:)=NaN;
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127 | elseif length(flags)==md.numberofelements
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128 | data(pos,:)=NaN;
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129 | else
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130 | disp('plotmodel warning: mask length not supported yet (supported length are md.numberofnodes and md.numberofelements');
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131 | end
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132 | end
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133 |
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134 | %log?
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135 | if exist(options,'log'),
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136 | bounds=getfieldvalue(options,'caxis',[min(data(:)) max(data(:))]);
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137 | data(find(data<bounds(1)))=bounds(1);
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138 | if any(data<=0),
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139 | error('Log option cannot be applied on negative values. Use caxis option (Rignot''s settings: [1.5 max(data)])');
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140 | end
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141 | pos=find(~isnan(data));
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142 | data(pos)=log(data(pos))/log(getfieldvalue(options,'log'));
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143 | end
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144 | end
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145 |
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146 | %node data
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147 | if (datasize(1)==md.numberofnodes & datasize(2)==1),
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148 | datatype=2;
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149 |
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150 | %Mask?
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151 | if exist(options,'mask'),
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152 | flags=getfieldvalue(options,'mask');
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153 | pos=find(~flags);
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154 | if length(flags)==md.numberofnodes,
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155 | data(pos,:)=NaN;
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156 | elseif length(flags)==md.numberofelements
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157 | data(md.elements(pos,:),:)=NaN;
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158 | else
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159 | disp('plotmodel warning: mask length not supported yet (supported length are md.numberofnodes and md.numberofelements');
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160 | end
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161 | end
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162 |
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163 | %log?
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164 | if exist(options,'log'),
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165 | %if any(data<=0),
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166 | % error('Log option cannot be applied on negative values. Use caxis option (Rignot''s settings: [1.5 max(data)])');
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167 | %end
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168 | data=log(data)/log(getfieldvalue(options,'log'));
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169 | end
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170 | end
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171 |
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172 | %layer projection?
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173 | if getfieldvalue(options,'layer',0)>=1,
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174 | data=project2d(md,data,getfieldvalue(options,'layer')); %project onto 2d mesh
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175 | end
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176 |
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177 | %control arrow density if quiverplot
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178 | if datatype==3 & exist(options,'density')
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179 | databak=data;
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180 | data=NaN*ones(datasize);
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181 | density=getfieldvalue(options,'density');
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182 | data(1:density:end,:)=databak(1:density:end,:);
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183 | clear databak
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184 | end
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