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<A HREF="toc.html">Contents</A>
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<A HREF="105CreatingaGanttChart.html">Next</A>
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<HR NOSHADE>
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<H2><A NAME="10_4">10.4 The structure of a Gantt chart</A></H2>
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<P> A Gantt chart is made up of four distinct areas.</P>
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<OL>
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<LI>On the left side there is the activity title column.</LI>
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<LI>On the top there is the scale headers (up to four headers may be
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displayed)</LI>
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<LI>The actual plot area where all the Gantt bars and markers go</LI>
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<LI>The margin area, where for example the titles are shown</LI>
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</OL>
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<P> Since a Gantt chart inherits all the usual properties of a JpGraph
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Graph() you have the access to the same method to formatting the image
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as before. For example to have a shadow around the image you call
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Graph::SetShadow() and to set the margin color you can use
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Graph::SetMarginColor(). Please refer to the reference documentation
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for a full list of supported features.</P>
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<P> To create a Gantt chart you<STRONG> add</STRONG> objects to it. As
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of this writing you may add the following object by the use of the
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GanttChart::Add() method</P>
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<UL>
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<LI> Gantt bars (indicates the length of an activity)</LI>
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<LI> Milestones, a single mark at a specific date</LI>
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<LI> Vertical line, might be use to mark phases in projects</LI>
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</UL>
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<P> All these objects may be extensively modified in terms of
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formatting. You can specify color (both fill- and frame color), size,
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titles, style and patterns and so on. All these objects comes with (in
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my mind) sensible default so you don't have to specify a lot of
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parameters. But if you need a fine grain control or if you disagree
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with my taste you<STRONG> can</STRONG>.</P>
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