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  <title>The constructor helper (LTPDA Toolbox)</title>
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  <p style="font-size:1px;">&nbsp;</p>

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    <tr>
      <td valign="baseline"><b>LTPDA Toolbox</b></td><td><a href="../helptoc.html">contents</a></td>

      <td valign="baseline" align="right"><a href=
      "gui_specwin.html"><img src="b_prev.gif" border="0" align=
      "bottom" alt="The Spectral Window GUI"></a>&nbsp;&nbsp;&nbsp;<a href=
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  <h1 class="title"><a name="f3-12899" id="f3-12899"></a>The constructor helper</h1>
  <hr>

  <p>
	<p>
  Since LTPDA is an object-oriented system, the user must create objects of different
  types using the appropriate constructors. The various constructor forms for each
  different LTPDA class can be explored using the <it>constructor helper</it>.
</p>
<p>
  To start the constructor helper GUI:
</p>
<div class="fragment"><pre>
    >> ltpda_constructor_helper
</pre></div>
<p>
  or click the appropriate button on the Launch Bay.
</p>
<p>
  You should then be presented with the following figure:
</p>
<br>
<img src="images/constructor_helper.png" alt="LTPDA Constructor Helper" border="3">
<br>
<br>
<p>
  Selecting a class from the drop-down list reveals the possible parameter sets for that
  class constructor. Selecting a parameter set reveals the default parameter list constructor
  string for constructing that class object in this way. For example, if we want to construct
  and Analysis Object using the time-series constructor, select the AO class then click on
  "From Time-series Function". You should then see:
</p>
<br>
<img src="images/constructor_helper_eg1.png" alt="LTPDA Constructor Helper" border="3">
<br>
<br>
<p>
  You can then edit the parameter list and build the object by clicking on <tt>Build</tt>.
</p>

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      <td align="left" width="20"><a href="gui_specwin.html"><img src=
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      "The Spectral Window GUI"></a>&nbsp;</td>

      <td align="left">The Spectral Window GUI</td>

      <td>&nbsp;</td>

      <td align="right">The LTPDA object explorer</td>

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  <p class="copy">&copy;LTP Team</p>
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author	Daniele Nicolodi <nicolodi@science.unitn.it>
date	Mon, 05 Dec 2011 18:04:34 +0100
parents	f0afece42f48
children