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@@ -4,13 +4,22 @@
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<p>
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The <b>Graphical Modeler</b> is
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-a <em><a href="wxGUI.html">wxGUI</a></em> compoment which allows the
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-user to create, edit, and manage models. The modeler can be launched
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-from the menu <tt>File -> Graphical modeler</tt> or by
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-clicking on icon <img src="icons/modeler-main.png" alt="icon"> in the toolbar. It's also available as stand-alone module <em>g.gui.gmodeler</em>.
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+a <em><a href="wxGUI.html">wxGUI</a></em> component which allows to
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+create, edit, and manage complex models using easy-to-use
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+interface. When performing analytical operations in GRASS, the
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+operations are not isolated, but part of a chain of operations. Using
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+Graphical Modeler, that chain of processes (ie. GRASS modules)
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+can be wrapped into one process (ie. model). So it's easier to execute
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+the model later with slightly different inputs or parameters.
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<p>
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-The modeler currently allows to:
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+The modeler can be launched from the Layer Manager menu <tt>File ->
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+Graphical modeler</tt> or from the main
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+toolbar <img src="icons/modeler-main.png" alt="icon">. It's also
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+available as stand-alone module <em>g.gui.gmodeler</em>.
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+
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+<p>
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+The Graphical Modeler allows to:
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<ul>
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<li>define data items (raster, vector, 3D raster maps)</li>
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@@ -18,7 +27,7 @@ The modeler currently allows to:
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<li>define relations between data and action items</li>
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<li>define loops (eg. map series) and conditions (if-else statements)</li>
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<li>define model variables</li>
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- <li>parameterize commands</li>
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+ <li>parameterize GRASS commands</li>
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<li>define intermediate data</li>
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<li>validate and run model</li>
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<li>store model properties to the file (<tt>GRASS Model File|*.gxm</tt>)</li>
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Martin Landa