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| 3 | <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
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| 4 | <head> |
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| 5 | <title>cutsegment.pro (SAXO Documentation Assistant)</title> |
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| 6 | </head> |
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| 7 | |
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| 8 | <body text="#000000" bgcolor="#FFFFFF"> |
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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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[234] | 72 | <h2>cutsegment <font size="-1" color="#006633"> |
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| 73 | basic work |
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[163] | 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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[242] | 189 | see returns |
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[163] | 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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[242] | 206 | In this case, x and y correspond to longitude and latitude in degrees. |
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[163] | 207 | |
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| 209 | |
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| 210 | |
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[234] | 211 | <h3>Examples</h3><pre> |
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[163] | 212 | |
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[402] | 213 | IDL> x0=[2,5] |
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| 214 | IDL> y0=[5,1] |
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| 215 | IDL> x1=[9,3] |
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| 216 | IDL> y1=[1,8] |
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| 217 | IDL> res=cutsegment(x0, y0, x1, y1, 10) |
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| 218 | IDL> splot, [0,10], [0,10], xstyle = 1, ystyle = 1,/nodata |
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| 219 | IDL> oplot, [x0[0], x1[0]], [y0[0], y1[0]] |
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| 220 | IDL> oplot, [res[0,*,0]], [res[1,*,0]], color = 20, psym = 1, thick = 3 |
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| 221 | IDL> oplot, [x0[1], x1[1]], [y0[1], y1[1]] |
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| 222 | IDL> oplot, [res[0,*,1]], [res[1,*,1]], color = 40, psym = 1, thick = 3 |
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| 223 | |
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[234] | 224 | </pre><h3>Version history</h3> |
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[163] | 225 | |
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[234] | 226 | <h4>Version</h4> |
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[402] | 227 | $Id: cutsegment.pro 371 2008-08-07 09:32:02Z pinsard $ |
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[163] | 228 | |
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| 229 | <h4>History</h4> |
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| 230 | S. Masson (smasson@lodyc.jussieu.fr) |
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| 231 | July 5th, 2002 |
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| 249 | <font size="-3"><p> </p></font> |
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| 250 | <hr size="1" color="#CCCCCC"/> |
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[187] | 255 | <p><font color="gray" size="-3"> Produced by IDLdoc 2.0.</font></p> |
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[163] | 256 | |
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| 257 | </body> |
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[249] | 258 | </html> |
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