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3 | <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
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5 | <title>cutpar.pro (SAXO Documentation Assistant)</title> |
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43 | |
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44 | |
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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="compute_fromreg_imoms3_weigaddr.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="cutsegment.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>cutpar.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 parallelogram(s) into p*n^2 parallelograms |
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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="#_cutpar"></a> |
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71 | |
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72 | <h2>cutpar <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>cutpar(<i><a href="#_cutpar_keyword_x0">x0</a>, <a href="#_cutpar_keyword_y0">y0</a>, <a href="#_cutpar_keyword_x1">x1</a>, <a href="#_cutpar_keyword_y1">y1</a>, <a href="#_cutpar_keyword_x2">x2</a>, <a href="#_cutpar_keyword_y2">y2</a>, <a href="#_cutpar_keyword_x3">x3</a>, <a href="#_cutpar_keyword_y3">y3</a>, <a href="#_cutpar_keyword_n">n</a></i>, <a href="#_cutpar_keyword_ENDPOINTS">ENDPOINTS</a>=<i>ENDPOINTS</i>, <a href="#_cutpar_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 | by default: a 3d array(2,n^2,p) giving the center position of each |
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83 | piece of the parallelograms |
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84 | |
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85 | if /ENDPOINTS : a 3d array(2,(n+1)^2,p) giving the edge positions |
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86 | of each piece of the parallelograms |
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87 | |
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88 | |
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89 | |
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90 | <h3>Parameters</h3> |
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91 | |
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92 | |
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93 | <a name="#_cutpar_keyword_x0"></a> |
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94 | <h4>x0 |
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95 | <font size="-1" color="#006633">in</font> |
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96 | |
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97 | |
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98 | <font size="-1" color="#006633">required</font> |
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99 | |
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100 | |
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101 | |
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102 | |
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103 | </h4> |
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104 | |
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105 | |
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106 | |
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107 | |
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108 | <a name="#_cutpar_keyword_y0"></a> |
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109 | <h4>y0 |
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110 | <font size="-1" color="#006633">in</font> |
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111 | |
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112 | |
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113 | <font size="-1" color="#006633">required</font> |
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114 | |
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115 | |
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116 | |
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117 | |
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118 | </h4> |
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119 | |
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120 | |
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121 | |
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122 | |
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123 | <a name="#_cutpar_keyword_x1"></a> |
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124 | <h4>x1 |
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125 | <font size="-1" color="#006633">in</font> |
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126 | |
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127 | |
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128 | <font size="-1" color="#006633">required</font> |
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129 | |
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130 | |
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131 | |
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132 | |
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133 | </h4> |
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134 | |
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135 | |
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136 | |
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137 | |
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138 | <a name="#_cutpar_keyword_y1"></a> |
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139 | <h4>y1 |
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140 | <font size="-1" color="#006633">in</font> |
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141 | |
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142 | |
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143 | <font size="-1" color="#006633">required</font> |
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144 | |
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145 | |
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146 | |
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147 | |
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148 | </h4> |
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149 | |
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150 | |
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151 | |
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152 | |
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153 | <a name="#_cutpar_keyword_x2"></a> |
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154 | <h4>x2 |
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155 | <font size="-1" color="#006633">in</font> |
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156 | |
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157 | |
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158 | <font size="-1" color="#006633">required</font> |
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159 | |
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160 | |
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161 | |
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162 | |
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163 | </h4> |
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164 | |
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165 | |
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166 | |
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167 | |
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168 | <a name="#_cutpar_keyword_y2"></a> |
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169 | <h4>y2 |
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170 | <font size="-1" color="#006633">in</font> |
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171 | |
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172 | |
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173 | <font size="-1" color="#006633">required</font> |
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174 | |
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175 | |
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176 | |
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177 | |
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178 | </h4> |
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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 | <a name="#_cutpar_keyword_x3"></a> |
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184 | <h4>x3 |
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185 | <font size="-1" color="#006633">in</font> |
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186 | |
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187 | |
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188 | <font size="-1" color="#006633">required</font> |
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189 | |
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190 | |
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191 | |
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192 | |
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193 | </h4> |
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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 | <a name="#_cutpar_keyword_y3"></a> |
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199 | <h4>y3 |
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200 | <font size="-1" color="#006633">in</font> |
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201 | |
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202 | |
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203 | <font size="-1" color="#006633">required</font> |
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204 | |
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205 | |
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206 | |
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207 | |
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208 | </h4> |
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209 | |
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210 | |
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211 | 1d arrays of p elements, giving the edge positions. |
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212 | The edges must be given as in <a href="/Applications/itt/idl64/help/online_help/PLOT.html">PLOT</a> to draw the |
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213 | parallelogram. (see example). |
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214 | |
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215 | |
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216 | |
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217 | <a name="#_cutpar_keyword_n"></a> |
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218 | <h4>n |
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219 | <font size="-1" color="#006633">in</font> |
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220 | |
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221 | |
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222 | <font size="-1" color="#006633">required</font> |
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223 | |
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224 | |
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225 | |
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226 | |
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227 | </h4> |
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228 | |
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229 | |
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230 | each parallelogram will be cut in n^2 pieces |
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231 | |
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232 | |
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233 | |
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234 | |
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235 | |
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236 | <h3>Keywords</h3> |
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237 | |
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238 | |
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239 | <a name="#_cutpar_keyword_ENDPOINTS"></a> |
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240 | <h4>ENDPOINTS |
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241 | |
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242 | |
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243 | |
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244 | |
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245 | |
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246 | |
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247 | |
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248 | |
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249 | </h4> |
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250 | |
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251 | |
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252 | see returns |
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253 | |
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254 | |
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255 | <a name="#_cutpar_keyword_ONSPHERE"></a> |
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256 | <h4>ONSPHERE |
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257 | |
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258 | |
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259 | |
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260 | |
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261 | |
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262 | |
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263 | |
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264 | |
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265 | </h4> |
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266 | |
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267 | |
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268 | to specify that the points are located on a |
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269 | sphere. In this case, x and y correspond to longitude and |
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270 | latitude in degrees. |
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271 | |
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272 | |
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273 | |
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274 | |
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275 | <h3>Examples</h3><pre> |
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276 | |
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277 | IDL> x0 = [2,6,2] |
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278 | IDL> y0 = [0,2,6] |
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279 | IDL> x1 = [3,8,4] |
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280 | IDL> y1 = [4,4,6] |
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281 | IDL> x2 = [1,6,4] |
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282 | IDL> y2 = [5,6,8] |
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283 | IDL> x3 = [0,4,2] |
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284 | IDL> y3 = [1,4,8] |
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285 | IDL> n = 4 |
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286 | IDL> splot, [0,10], [0,10], xstyle = 1, ystyle = 1,/nodata |
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287 | IDL> for i=0,2 do oplot, [x0[i],x1[i],x2[i],x3[i],x0[i]],[y0[i],y1[i],y2[i],y3[i],y0[i]] |
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288 | IDL> res=cutpar(x0, y0, x1, y1, x2, y2, x3, y3, n) |
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289 | IDL> for i=0,2 do oplot, [res[0,*,i]], [res[1,*,i]], color = 20+10*i, psym = 1, thick = 3 |
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290 | |
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291 | </pre><h3>Version history</h3> |
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292 | |
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293 | <h4>Version</h4> |
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294 | $Id: cutpar.pro 372 2008-08-08 12:31:53Z pinsard $ |
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295 | |
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296 | <h4>History</h4> |
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297 | S. Masson (smasson@lodyc.jussieu.fr) |
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298 | - July 5th, 2002 |
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299 | |
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300 | |
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301 | |
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302 | |
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303 | |
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304 | |
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305 | |
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306 | |
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307 | |
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308 | <h3>Other attributes</h3> |
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309 | |
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310 | |
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311 | <h4>Uses routines</h4> |
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312 | <a href="..//Interpolation/cutsegment.html">cutsegment</a> |
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313 | |
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314 | |
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315 | |
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316 | |
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317 | |
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318 | <font size="-3"><p> </p></font> |
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319 | <hr size="1" color="#CCCCCC"/> |
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320 | |
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321 | |
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322 | |
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323 | |
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324 | <p><font color="gray" size="-3"> Produced by IDLdoc 2.0.</font></p> |
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325 | |
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326 | </body> |
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327 | </html> |
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