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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
2 "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
3
4 <html lang="en">
5 <head>
6 <meta name="generator" content=
7 "HTML Tidy for Mac OS X (vers 1st December 2004), see www.w3.org">
8 <meta http-equiv="Content-Type" content=
9 "text/html; charset=us-ascii">
10
11 <title>The constructor helper (LTPDA Toolbox)</title>
12 <link rel="stylesheet" href="docstyle.css" type="text/css">
13 <meta name="generator" content="DocBook XSL Stylesheets V1.52.2">
14 <meta name="description" content=
15 "Presents an overview of the features, system requirements, and starting the toolbox.">
16 </head>
17
18 <body>
19 <a name="top_of_page" id="top_of_page"></a>
20
21 <p style="font-size:1px;">&nbsp;</p>
22
23 <table class="nav" summary="Navigation aid" border="0" width=
24 "100%" cellpadding="0" cellspacing="0">
25 <tr>
26 <td valign="baseline"><b>LTPDA Toolbox</b></td><td><a href="../helptoc.html">contents</a></td>
27
28 <td valign="baseline" align="right"><a href=
29 "gui_specwin.html"><img src="b_prev.gif" border="0" align=
30 "bottom" alt="The Spectral Window GUI"></a>&nbsp;&nbsp;&nbsp;<a href=
31 "gui_explorer.html"><img src="b_next.gif" border="0" align=
32 "bottom" alt="The LTPDA object explorer"></a></td>
33 </tr>
34 </table>
35
36 <h1 class="title"><a name="f3-12899" id="f3-12899"></a>The constructor helper</h1>
37 <hr>
38
39 <p>
40 <p>
41 Since LTPDA is an object-oriented system, the user must create objects of different
42 types using the appropriate constructors. The various constructor forms for each
43 different LTPDA class can be explored using the <it>constructor helper</it>.
44 </p>
45 <p>
46 To start the constructor helper GUI:
47 </p>
48 <div class="fragment"><pre>
49 >> ltpda_constructor_helper
50 </pre></div>
51 <p>
52 or click the appropriate button on the Launch Bay.
53 </p>
54 <p>
55 You should then be presented with the following figure:
56 </p>
57 <br>
58 <img src="images/constructor_helper.png" alt="LTPDA Constructor Helper" border="3">
59 <br>
60 <br>
61 <p>
62 Selecting a class from the drop-down list reveals the possible parameter sets for that
63 class constructor. Selecting a parameter set reveals the default parameter list constructor
64 string for constructing that class object in this way. For example, if we want to construct
65 and Analysis Object using the time-series constructor, select the AO class then click on
66 "From Time-series Function". You should then see:
67 </p>
68 <br>
69 <img src="images/constructor_helper_eg1.png" alt="LTPDA Constructor Helper" border="3">
70 <br>
71 <br>
72 <p>
73 You can then edit the parameter list and build the object by clicking on <tt>Build</tt>.
74 </p>
75
76 </p>
77
78 <br>
79 <br>
80 <table class="nav" summary="Navigation aid" border="0" width=
81 "100%" cellpadding="0" cellspacing="0">
82 <tr valign="top">
83 <td align="left" width="20"><a href="gui_specwin.html"><img src=
84 "b_prev.gif" border="0" align="bottom" alt=
85 "The Spectral Window GUI"></a>&nbsp;</td>
86
87 <td align="left">The Spectral Window GUI</td>
88
89 <td>&nbsp;</td>
90
91 <td align="right">The LTPDA object explorer</td>
92
93 <td align="right" width="20"><a href=
94 "gui_explorer.html"><img src="b_next.gif" border="0" align=
95 "bottom" alt="The LTPDA object explorer"></a></td>
96 </tr>
97 </table><br>
98
99 <p class="copy">&copy;LTP Team</p>
100 </body>
101 </html>