Last change
on this file since 231 was
231,
checked in by pinsard, 17 years ago
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improvements/corrections of some *.pro headers
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-
Property svn:eol-style set to
native
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Property svn:keywords set to
Id
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File size:
1.1 KB
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Rev | Line | |
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[2] | 1 | ;+ |
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| 2 | ; |
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[231] | 3 | ; @file_comments |
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| 4 | ; We want, from a 3d matrix, to extract a 2d (x,y) array whose each element |
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| 5 | ; has been extract from a level specified by the 2d level array (typically, |
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[142] | 6 | ; we want to obtain the salinity along an isopycn we have repered by its level). |
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[231] | 7 | ; level2index is a function who give, in function of level, a 2d indexes array |
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[142] | 8 | ; which will allow to extract the 2d array from the 3d array... |
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[2] | 9 | ; |
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[142] | 10 | ; @categories |
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[157] | 11 | ; Without loop |
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[2] | 12 | ; |
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[163] | 13 | ; @param LEVEL {in}{required}{type=2d array} |
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[142] | 14 | ; A 2d level array |
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[2] | 15 | ; |
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[142] | 16 | ; @returns |
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| 17 | ; a 2d indexes array |
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[2] | 18 | ; |
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[142] | 19 | ; @history |
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[157] | 20 | ; Sebastien Masson (smasson\@lodyc.jussieu.fr) |
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[142] | 21 | ; 24/11/1999 |
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[2] | 22 | ; |
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[142] | 23 | ; @version |
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| 24 | ; $Id$ |
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[2] | 25 | ; |
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| 26 | ;- |
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[231] | 27 | ; |
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[2] | 28 | FUNCTION level2index, level |
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[231] | 29 | ; An element of 3d array (whose the two first dimensions are nx and ny) whose |
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[142] | 30 | ; coordinates are i, j and k have for index in the same 3d array i + j*nx + k*(nx*ny) |
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| 31 | ; level given, for each point of level, we know i, j et k, |
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| 32 | ; so we can calculate the index |
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[114] | 33 | ; |
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| 34 | compile_opt idl2, strictarrsubs |
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| 35 | ; |
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[2] | 36 | taille = size(level) |
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| 37 | nx = taille[1] |
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| 38 | ny = taille[2] |
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[142] | 39 | ; array k*(nx*ny) |
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[2] | 40 | tabknxny = (nx*ny)*long(level) |
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| 41 | ; |
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| 42 | ; |
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| 43 | return, lindgen(nx, ny)+tabknxny |
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| 44 | end |
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