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3 | <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
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5 | <title>cutsegment.pro (SAXO Documentation Assistant)</title> |
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45 | <table border="0" cellpadding="0" cellspacing="0" width="98%" bgcolor="#F0F0FF" valign="bottom"> |
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46 | <tr> |
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47 | <td width="10%"> |
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48 | <a href="cutpar.html"><img src="./../prev.gif" border="0" alt="Previous"></a></td> |
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49 | <td width="80%" align="center" valign="center"> |
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50 | <font size=-1><i>SAXO Documentation Assistant</i>: <a href="./../home.html">Overview</a></font></td> |
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51 | <td width="10%" align="right"> |
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52 | <a href="extrapolate.html"><img src="./../next.gif" border="0" alt="Next"></a></td> |
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53 | </tr> |
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54 | </table> |
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55 | |
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56 | |
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57 | <h1><font size="-2">Interpolation/</font></h1> |
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58 | <h2>cutsegment.pro</h2> |
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59 | |
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60 | <dl> |
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61 | </dl> |
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62 | |
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63 | |
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64 | cut p segments into p*n equal parts |
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65 | |
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66 | |
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67 | |
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68 | |
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69 | |
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70 | <a name="#_cutsegment"></a> |
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71 | |
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72 | <h2>cutsegment <font size="-1" color="#006633"> |
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73 | basic work |
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74 | </font></h2> |
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75 | |
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76 | <p><font face="Courier"><i>result = </i>cutsegment(<i><a href="#_cutsegment_keyword_x0">x0</a>, <a href="#_cutsegment_keyword_y0">y0</a>, <a href="#_cutsegment_keyword_x1">x1</a>, <a href="#_cutsegment_keyword_y1">y1</a>, <a href="#_cutsegment_keyword_n">n</a></i>, <a href="#_cutsegment_keyword_ENDPOINTS">ENDPOINTS</a>=<i>ENDPOINTS</i>, <a href="#_cutsegment_keyword_ONSPHERE">ONSPHERE</a>=<i>ONSPHERE</i>)</font></p> |
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77 | |
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78 | |
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79 | |
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80 | |
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81 | <h3>Return value</h3> |
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82 | - default: a 3d array (2,n,p) that gives the coordinates of the |
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83 | middle of the cut segments. |
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84 | - if /ENDPOINTS, a 3d array (2,n+1,p) that gives the |
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85 | coordinates of the endpoints of the cutted segments. |
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86 | |
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87 | |
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88 | |
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89 | <h3>Parameters</h3> |
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90 | |
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91 | |
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92 | <a name="#_cutsegment_keyword_x0"></a> |
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93 | <h4>x0 |
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94 | <font size="-1" color="#006633">in</font> |
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95 | |
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96 | |
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97 | <font size="-1" color="#006633">required</font> |
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98 | |
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99 | |
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100 | |
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101 | |
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102 | </h4> |
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103 | |
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104 | |
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105 | |
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106 | |
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107 | <a name="#_cutsegment_keyword_y0"></a> |
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108 | <h4>y0 |
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109 | <font size="-1" color="#006633">in</font> |
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110 | |
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111 | |
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112 | <font size="-1" color="#006633">required</font> |
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113 | |
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114 | |
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115 | |
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116 | |
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117 | </h4> |
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118 | |
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119 | |
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120 | |
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121 | |
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122 | <a name="#_cutsegment_keyword_x1"></a> |
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123 | <h4>x1 |
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124 | <font size="-1" color="#006633">in</font> |
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125 | |
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126 | |
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127 | <font size="-1" color="#006633">required</font> |
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128 | |
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129 | |
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130 | |
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131 | |
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132 | </h4> |
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133 | |
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134 | |
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135 | |
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136 | |
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137 | <a name="#_cutsegment_keyword_y1"></a> |
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138 | <h4>y1 |
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139 | <font size="-1" color="#006633">in</font> |
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140 | |
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141 | |
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142 | <font size="-1" color="#006633">required</font> |
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143 | |
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144 | |
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145 | |
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146 | |
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147 | </h4> |
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148 | |
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149 | |
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150 | 1d arrays of p elements, the coordinates of the endpoints of the p segments |
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151 | |
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152 | |
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153 | |
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154 | <a name="#_cutsegment_keyword_n"></a> |
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155 | <h4>n |
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156 | <font size="-1" color="#006633">in</font> |
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157 | |
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158 | |
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159 | <font size="-1" color="#006633">required</font> |
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160 | |
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161 | |
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162 | |
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163 | |
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164 | </h4> |
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165 | |
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166 | |
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167 | the number of pieces we want to cut each segment |
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168 | |
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169 | |
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170 | |
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171 | |
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172 | |
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173 | <h3>Keywords</h3> |
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174 | |
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175 | |
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176 | <a name="#_cutsegment_keyword_ENDPOINTS"></a> |
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177 | <h4>ENDPOINTS |
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178 | |
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179 | |
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180 | |
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181 | |
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182 | |
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183 | |
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184 | |
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185 | |
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186 | </h4> |
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187 | |
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188 | |
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189 | see returns |
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190 | |
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191 | |
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192 | <a name="#_cutsegment_keyword_ONSPHERE"></a> |
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193 | <h4>ONSPHERE |
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194 | |
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195 | |
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196 | |
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197 | |
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198 | |
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199 | |
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200 | |
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201 | |
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202 | </h4> |
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203 | |
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204 | |
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205 | to specify that the points are located on a sphere. |
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206 | In this case, x and y correspond to longitude and latitude in degrees. |
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207 | |
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208 | |
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209 | |
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210 | |
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211 | <h3>Examples</h3><pre> |
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212 | IDL> x0=[2,5] |
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213 | IDL> y0=[5,1] |
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214 | IDL> x1=[9,3] |
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215 | IDL> y1=[1,8] |
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216 | IDL> res=cutsegment(x0, y0, x1, y1, 10) |
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217 | IDL> splot, [0,10], [0,10], xstyle = 1, ystyle = 1,/nodata |
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218 | IDL> oplot, [x0[0], x1[0]], [y0[0], y1[0]] |
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219 | IDL> oplot, [res[0,*,0]], [res[1,*,0]], color = 20, psym = 1, thick = 3 |
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220 | IDL> oplot, [x0[1], x1[1]], [y0[1], y1[1]] |
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221 | IDL> oplot, [res[0,*,1]], [res[1,*,1]], color = 40, psym = 1, thick = 3 |
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222 | |
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223 | </pre><h3>Version history</h3> |
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224 | |
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225 | <h4>Version</h4> |
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226 | $Id: cutsegment.pro 327 2007-12-13 16:22:35Z pinsard $ |
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227 | |
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228 | <h4>History</h4> |
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229 | S. Masson (smasson@lodyc.jussieu.fr) |
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230 | July 5th, 2002 |
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248 | <font size="-3"><p> </p></font> |
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249 | <hr size="1" color="#CCCCCC"/> |
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254 | <p><font color="gray" size="-3"> Produced by IDLdoc 2.0.</font></p> |
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256 | </body> |
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257 | </html> |
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