source: trunk/SRC/Documentation/idldoc_assistant_output/Interpolation/angle.html @ 242

Last change on this file since 242 was 242, checked in by pinsard, 17 years ago

improvements/corrections of some *.pro headers + replace some message by some report
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3<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
4  <head>
5    <title>angle.pro (SAXO Documentation Assistant)</title>
6  </head>
7
8  <body text="#000000" bgcolor="#FFFFFF">
9
10   
11<!-- Navbar template takes a structure with the following fields:
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46  <tr>
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48<a href=""><img src="./../prev.gif" border="0" alt="Previous"></a></td>
49    <td width="80%" align="center" valign="center">
50<font size=-1><i>SAXO Documentation Assistant</i>: <a href="./../home.html">Overview</a></font></td>
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52<a href="clickincell.html"><img src="./../next.gif" border="0" alt="Next"></a></td>
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54</table>
55
56
57    <h1><font size="-2">Interpolation/</font></h1>
58    <h2>angle.pro</h2>
59
60    <dl>
61    </dl>
62
63   
64 north stereographic polar projection
65
66
67 Compute angles between grid lines and direction of the North pole
68(fom angle.F,v 2.2 in OPA8.2)
69
70
71   
72
73     
74      <a name="#_angle"></a>
75
76      <h2>angle  <font size="-1" color="#006633">
77 Interpolation
78</font></h2>
79
80      <p><font face="Courier">angle<i>, <a href="#_angle_keyword_fileocemesh">fileocemesh</a>, <a href="#_angle_keyword_gcosu">gcosu</a>, <a href="#_angle_keyword_gsinu">gsinu</a>, <a href="#_angle_keyword_gcosv">gcosv</a>, <a href="#_angle_keyword_gsinv">gsinv</a>, <a href="#_angle_keyword_gcost">gcost</a>, <a href="#_angle_keyword_gsint">gsint</a></i>, <a href="#_angle_keyword_IODIRECTORY">IODIRECTORY</a>=<i>scalar string</i>, <a href="#_angle_keyword_DOUBLE">DOUBLE</a>=<i>1 ou 2</i></font></p>
81
82   
83
84
85   
86
87   
88    <h3>Parameters</h3>
89   
90
91    <a name="#_angle_keyword_fileocemesh"></a>
92    <h4>fileocemesh&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
93      <font size="-1" color="#006633">in</font>
94     
95     
96      <font size="-1" color="#006633">required</font>
97     
98      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>scalar string</i></font>
99     
100     
101    </h4>
102
103   
104 a netcdf file that contains (at least) the following variables:
105        glamu, gphiu: longitudes and latitudes at U-points
106        glamv, gphiv: longitudes and latitudes at V-points
107        glamf, gphif: longitudes and latitudes at F-points
108
109   
110
111    <a name="#_angle_keyword_gcosu"></a>
112    <h4>gcosu&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
113     
114      <font size="-1" color="#006633">out</font>
115     
116     
117     
118      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>2d array</i></font>
119     
120     
121    </h4>
122
123   
124 cosinus of the angle between grid lines at U points and direction of the North pole
125
126   
127
128    <a name="#_angle_keyword_gsinu"></a>
129    <h4>gsinu&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
130     
131      <font size="-1" color="#006633">out</font>
132     
133     
134     
135      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>2d array</i></font>
136     
137     
138    </h4>
139
140   
141 sinus of the angle between grid lines at U points and direction of the North pole
142
143   
144
145    <a name="#_angle_keyword_gcosv"></a>
146    <h4>gcosv&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
147     
148      <font size="-1" color="#006633">out</font>
149     
150     
151     
152      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>2d array</i></font>
153     
154     
155    </h4>
156
157   
158 cosinus of the angle between grid lines at V points and direction of the North pole
159
160   
161
162    <a name="#_angle_keyword_gsinv"></a>
163    <h4>gsinv&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
164     
165      <font size="-1" color="#006633">out</font>
166     
167     
168     
169      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>2d array</i></font>
170     
171     
172    </h4>
173
174   
175 sinus of the angle between grid lines at V points and direction of the North pole
176
177   
178
179    <a name="#_angle_keyword_gcost"></a>
180    <h4>gcost&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
181     
182      <font size="-1" color="#006633">out</font>
183     
184     
185     
186      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>2d array</i></font>
187     
188     
189    </h4>
190
191   
192 cosinus of the angle between grid lines at T points and direction of the North pole
193
194   
195
196    <a name="#_angle_keyword_gsint"></a>
197    <h4>gsint&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
198     
199      <font size="-1" color="#006633">out</font>
200     
201     
202     
203      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>2d array</i></font>
204     
205     
206    </h4>
207
208   
209 sinus of the angle between grid lines at T points and direction of the North pole
210
211   
212   
213
214   
215    <h3>Keywords</h3>
216
217   
218    <a name="#_angle_keyword_IODIRECTORY"></a>
219    <h4>IODIRECTORY&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
220     
221     
222     
223     
224     
225      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>scalar string</i></font>
226      <font size="-1" color="#006633">default:</font> <font size="-1" color="#006633"><i>''</i></font>
227     
228    </h4>
229
230   
231 the directory path where is located fileocemesh
232
233   
234    <a name="#_angle_keyword_DOUBLE"></a>
235    <h4>DOUBLE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
236     
237     
238     
239     
240     
241      <font size="-1" color="#006633">type:</font> <font size="-1" color="#006633"><i>1 ou 2</i></font>
242      <font size="-1" color="#006633">default:</font> <font size="-1" color="#006633"><i>0</i></font>
243     
244    </h4>
245
246   
247 put 1 to use double precision (default is float)
248
249   
250   
251
252   
253    </pre><h3>Version history</h3>
254   
255    <h4>Version</h4>
256 $Id: angle.pro 238 2007-03-27 13:43:18Z pinsard $
257
258    <h4>History</h4>
259       Original :  96-07 (O. Marti)
260                   98-06 (G. Madec)
261       Feb 2005: IDL adaptation S. Masson
262
263   
264
265    <h3>Known issues</h3>
266   
267   
268   
269    <h4>Restrictions</h4>
270 to compute the lateral boundary conditions, we assume that:
271     (1) the first line is similar to the second line
272       =>    gcosu[*, 0] = gcosu[*, 1]
273       =>    gsinu[*, 0] = gsinu[*, 1]
274     (2) the grid follows OPA x periodicity rule, first column is
275     equal to the next to last column
276       =>    gcosv[0, *] = gcosv[jpj-2, *]
277       =>    gsinv[0, *] = gsinv[jpj-2, *]
278
279
280   
281   
282   
283   
284   
285   
286   
287
288    <font size="-3"><p>&nbsp;</p></font>
289    <hr size="1" color="#CCCCCC"/>
290     
291
292   
293
294    <p><font color="gray" size="-3">&nbsp;&nbsp;Produced by IDLdoc 2.0.</font></p>
295
296  </body>
297</html>
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