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| 5 | <title>Description of set_col_vec</title> |
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| 7 | <meta name="description" content="'set_col_vec': sets the color code for vectors depending on a scalar vec_C and parameters given by the struct colcode"> |
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| 15 | <div><a href="../index.html">Home</a> > <a href="index.html">.</a> > set_col_vec.m</div> |
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| 16 | |
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| 17 | <!--<table width="100%"><tr><td align="left"><a href="../index.html"><img alt="<" border="0" src="../left.png"> Master index</a></td> |
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| 18 | <td align="right"><a href="index.html">Index for . <img alt=">" border="0" src="../right.png"></a></td></tr></table>--> |
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| 19 | |
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| 20 | <h1>set_col_vec |
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| 21 | </h1> |
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| 22 | |
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| 23 | <h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2> |
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| 24 | <div class="box"><strong>'set_col_vec': sets the color code for vectors depending on a scalar vec_C and parameters given by the struct colcode</strong></div> |
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| 25 | |
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| 26 | <h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2> |
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| 27 | <div class="box"><strong>function [colorlist,col_vec,colcode_out]=set_col_vec(colcode,vec_C) </strong></div> |
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| 28 | |
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| 29 | <h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2> |
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| 30 | <div class="fragment"><pre class="comment">'set_col_vec': sets the color code for vectors depending on a scalar vec_C and parameters given by the struct colcode |
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| 31 | function [colorlist,col_vec,minC,colcode1,colcode2,maxC]=colvec(colcode,vec_C) |
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| 32 | OUTPUT |
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| 33 | colorlist(nb,3); %list of nb colors |
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| 34 | col_vec, size=[length(vec_C),3)];%list of color indices corresponding to vec_C |
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| 35 | minC, maxC: min and max of vec_C |
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| 36 | colcode1, colcode2: absolute threshold in vec_C corresponding to colcode.colcode1 and colcode.colcode2 |
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| 37 | INPUT |
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| 38 | colcode: struture setting the colorcode for vectors |
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| 39 | colcode.CName: 'ima_cor','black','white',... |
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| 40 | colcode.ColorCode ='black', 'white', 'rgb','brg', '64 colors' |
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| 41 | colcode.FixedCbounds =0; thresholds scaling relative to min and max, =1 fixed thresholds |
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| 42 | colcode.MinC; min |
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| 43 | colcode.MaxC; max |
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| 44 | colcode.colcode1: first threshold for rgb, relative to min (0) and max (1) |
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| 45 | colcode.colcode2: second threshold for rgb, relative to min (0) and max (1), |
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| 46 | rmq: we need min <= colcode1 <= colcode2 <= max, otherwise |
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| 47 | colcode1 and colcode2 are adjusted to the bounds |
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| 48 | vec_C: matlab vector representing the scalar setting the color</pre></div> |
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| 49 | |
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| 50 | <!-- crossreference --> |
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| 51 | <h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2> |
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| 52 | This function calls: |
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| 53 | <ul style="list-style-image:url(../matlabicon.gif)"> |
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| 54 | </ul> |
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| 55 | This function is called by: |
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| 56 | <ul style="list-style-image:url(../matlabicon.gif)"> |
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| 57 | <li><a href="plot_field.html" class="code" title="function [PlotType,PlotParamOut,haxes]= plot_field(Data,haxes,PlotParam,KeepLim,PosColorbar)">plot_field</a> 'plot_field': plot any field with the structure defined in the uvmat package</li><li><a href="uvmat.html" class="code" title="function varargout = uvmat(varargin)">uvmat</a> 'uvmat': function associated with the GUI 'uvmat.fig' for images and data field visualization</li></ul> |
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| 58 | <!-- crossreference --> |
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| 59 | |
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| 60 | |
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| 61 | <h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2> |
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| 62 | <div class="fragment"><pre>0001 <span class="comment">%'set_col_vec': sets the color code for vectors depending on a scalar vec_C and parameters given by the struct colcode</span> |
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| 63 | 0002 <span class="comment">%function [colorlist,col_vec,minC,colcode1,colcode2,maxC]=colvec(colcode,vec_C)</span> |
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| 64 | 0003 <span class="comment">%OUTPUT</span> |
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| 65 | 0004 <span class="comment">%colorlist(nb,3); %list of nb colors</span> |
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| 66 | 0005 <span class="comment">%col_vec, size=[length(vec_C),3)];%list of color indices corresponding to vec_C</span> |
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| 67 | 0006 <span class="comment">%minC, maxC: min and max of vec_C</span> |
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| 68 | 0007 <span class="comment">%colcode1, colcode2: absolute threshold in vec_C corresponding to colcode.colcode1 and colcode.colcode2</span> |
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| 69 | 0008 <span class="comment">%INPUT</span> |
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| 70 | 0009 <span class="comment">% colcode: struture setting the colorcode for vectors</span> |
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| 71 | 0010 <span class="comment">% colcode.CName: 'ima_cor','black','white',...</span> |
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| 72 | 0011 <span class="comment">% colcode.ColorCode ='black', 'white', 'rgb','brg', '64 colors'</span> |
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| 73 | 0012 <span class="comment">% colcode.FixedCbounds =0; thresholds scaling relative to min and max, =1 fixed thresholds</span> |
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| 74 | 0013 <span class="comment">% colcode.MinC; min</span> |
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| 75 | 0014 <span class="comment">% colcode.MaxC; max</span> |
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| 76 | 0015 <span class="comment">% colcode.colcode1: first threshold for rgb, relative to min (0) and max (1)</span> |
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| 77 | 0016 <span class="comment">% colcode.colcode2: second threshold for rgb, relative to min (0) and max (1),</span> |
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| 78 | 0017 <span class="comment">% rmq: we need min <= colcode1 <= colcode2 <= max, otherwise</span> |
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| 79 | 0018 <span class="comment">% colcode1 and colcode2 are adjusted to the bounds</span> |
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| 80 | 0019 <span class="comment">% vec_C: matlab vector representing the scalar setting the color</span> |
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| 81 | 0020 <a name="_sub0" href="#_subfunctions" class="code">function [colorlist,col_vec,colcode_out]=set_col_vec(colcode,vec_C)</a> |
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| 82 | 0021 |
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| 83 | 0022 col_vec=[]; |
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| 84 | 0023 colcode_out=colcode;<span class="comment">%default</span> |
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| 85 | 0024 <span class="keyword">if</span> isempty(vec_C) || ~isnumeric(vec_C) |
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| 86 | 0025 colorlist=[0 0 1]; <span class="comment">%blue</span> |
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| 87 | 0026 <span class="keyword">return</span> |
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| 88 | 0027 <span class="keyword">end</span> |
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| 89 | 0028 <span class="keyword">if</span> (isfield(colcode,<span class="string">'FixedCbounds'</span>) && isequal(colcode.FixedCbounds,1)) |
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| 90 | 0029 minC=colcode.MinC; |
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| 91 | 0030 maxC=colcode.MaxC; |
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| 92 | 0031 <span class="keyword">else</span> |
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| 93 | 0032 minC=min(vec_C); |
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| 94 | 0033 maxC=max(vec_C); |
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| 95 | 0034 <span class="keyword">end</span> |
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| 96 | 0035 |
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| 97 | 0036 <span class="comment">%default input parameters</span> |
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| 98 | 0037 <span class="keyword">if</span> ~isstruct(colcode),colcode=[];<span class="keyword">end</span>; |
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| 99 | 0038 <span class="keyword">if</span> ~isfield(colcode,<span class="string">'ColorCode'</span>) || isempty(colcode.ColorCode) |
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| 100 | 0039 colorlist=[0 0 1]; <span class="comment">%blue</span> |
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| 101 | 0040 <span class="keyword">return</span> |
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| 102 | 0041 <span class="keyword">end</span> |
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| 103 | 0042 <span class="keyword">if</span> isfield(colcode,<span class="string">'colcode1'</span>) |
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| 104 | 0043 colcode1=minC+colcode.colcode1*(maxC-minC); |
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| 105 | 0044 <span class="keyword">else</span> |
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| 106 | 0045 colcode1=minC+(maxC-minC)/3;<span class="comment">%default</span> |
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| 107 | 0046 <span class="keyword">end</span> |
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| 108 | 0047 <span class="keyword">if</span> isfield(colcode,<span class="string">'colcode2'</span>) |
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| 109 | 0048 colcode2=minC+colcode.colcode2*(maxC-minC); |
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| 110 | 0049 <span class="keyword">else</span> |
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| 111 | 0050 colcode2=minC+2*(maxC-minC)/3;<span class="comment">%default</span> |
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| 112 | 0051 <span class="keyword">end</span> |
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| 113 | 0052 colcode_out.MinC=minC; |
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| 114 | 0053 colcode_out.MaxC=maxC; |
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| 115 | 0054 |
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| 116 | 0055 <span class="keyword">if</span> strcmp(colcode.ColorCode,<span class="string">'black'</span>) |
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| 117 | 0056 colorlist(1,:)=[0 0 0];<span class="comment">%black</span> |
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| 118 | 0057 col_vec=ones(size(vec_C));<span class="comment">%all vectors at color#1</span> |
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| 119 | 0058 <span class="keyword">elseif</span> strcmp(colcode.ColorCode,<span class="string">'white'</span>) |
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| 120 | 0059 colorlist(1,:)=[1 1 1];<span class="comment">%white</span> |
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| 121 | 0060 col_vec=ones(size(vec_C));<span class="comment">%all vectors at color#1</span> |
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| 122 | 0061 <span class="keyword">elseif</span> strcmp(colcode.ColorCode,<span class="string">'rgb'</span>)|| strcmp(colcode.ColorCode,<span class="string">'bgr'</span>)<span class="comment">% 3 color representation</span> |
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| 123 | 0062 ind1=find(vec_C < colcode1); <span class="comment">% =1 for red vectors</span> |
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| 124 | 0063 ind_green=find((vec_C >= colcode1) & (vec_C < colcode2));<span class="comment">% =1 for green vectors</span> |
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| 125 | 0064 ind3=find(vec_C >= colcode2);<span class="comment">% =1 for blue vectors</span> |
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| 126 | 0065 colorlist(2,:)=[0 1 0];<span class="comment">%green</span> |
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| 127 | 0066 col_vec(ind1)=1; |
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| 128 | 0067 col_vec(ind_green)=2; |
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| 129 | 0068 col_vec(ind3)=3; |
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| 130 | 0069 <span class="keyword">if</span> strcmp(colcode.ColorCode,<span class="string">'rgb'</span>) |
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| 131 | 0070 colorlist(1,:)=[1 0 0];<span class="comment">%red</span> |
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| 132 | 0071 colorlist(3,:)=[0 0 1];<span class="comment">%blue</span> |
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| 133 | 0072 <span class="keyword">else</span> |
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| 134 | 0073 colorlist(1,:)=[0 0 1];<span class="comment">%blue</span> |
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| 135 | 0074 colorlist(3,:)=[1 0 0];<span class="comment">%red</span> |
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| 136 | 0075 <span class="keyword">end</span> |
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| 137 | 0076 <span class="keyword">else</span> |
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| 138 | 0077 colorjet=jet;<span class="comment">% ususal colormap from blue to red</span> |
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| 139 | 0078 sizlist=size(colorjet); |
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| 140 | 0079 indsel=ceil((sizlist(1)/64)*(1:64)); |
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| 141 | 0080 colorlist(:,1)=colorjet(indsel,1); |
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| 142 | 0081 colorlist(:,2)=colorjet(indsel,2); |
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| 143 | 0082 colorlist(:,3)=colorjet(indsel,3); |
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| 144 | 0083 sizlist=size(colorlist); |
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| 145 | 0084 nblevel=sizlist(1); |
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| 146 | 0085 col2_1=maxC-minC; |
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| 147 | 0086 col_vec=1+floor(nblevel*(vec_C-minC)/col2_1); |
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| 148 | 0087 col_vec=col_vec.*(col_vec<= nblevel)+nblevel*(col_vec >nblevel);<span class="comment">% take color #nblevel at saturation</span> |
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| 149 | 0088 col_vec=col_vec.*(col_vec>= 1)+ (col_vec <1);<span class="comment">% take color #1 for values below 1</span> |
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| 150 | 0089 <span class="keyword">end</span></pre></div> |
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| 151 | <hr><address>Generated on Fri 13-Nov-2009 11:17:03 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> © 2003</address> |
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