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Revised documentation files.
git-svn-id: file:///fltk/svn/fltk/trunk@177 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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Michael R Sweet
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<html>
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<body>
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<hr break>
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<h2><a name="Fl_Chart">class Fl_Chart</a></h2>
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<hr>
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<h3>Class Hierarchy</h3>
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<ul><pre>
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<a href="#Fl_Widget">Fl_Widget</a>
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+----<b>Fl_Chart</b>
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</pre></ul>
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<h3>Include Files</h3>
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<ul><pre>
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#include <FL/Fl_Chart.H>
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</pre></ul>
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<h3>Description</h3>
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This widget displays simple charts and is provided for forms compatibility.
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<h3>Methods</h3>
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<center>
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<table width=90%>
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<tr>
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<td align=left valign=top>
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<ul>
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<li><a href="#Fl_Chart.Fl_Chart">Fl_Chart</a>
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<li><a href="#Fl_Chart.~Fl_Chart">~Fl_Chart</a>
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<li><a href="#Fl_Chart.add">add</a>
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</ul>
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</td>
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<td align=left valign=top>
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<ul>
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<li><a href="#Fl_Chart.autosize">autosize</a>
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<li><a href="#Fl_Chart.bounds">bounds</a>
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</ul>
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</td>
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<td align=left valign=top>
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<ul>
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<li><a href="#Fl_Chart.clear">clear</a>
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<li><a href="#Fl_Chart.insert">insert</a>
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</ul>
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</td>
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<td align=left valign=top>
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<ul>
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<li><a href="#Fl_Chart.maxsize">maxsize</a>
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<li><a href="#Fl_Chart.replace">replace</a>
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</ul>
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</td>
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<td align=left valign=top>
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<ul>
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<li><a href="#Fl_Chart.size">size</a>
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<li><a href="#Fl_Chart.type">type</a>
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</ul>
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</td>
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</tr>
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</table>
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</center>
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<h4><a name="Fl_Chart.Fl_Chart">Fl_Chart::Fl_Chart(int x, int y, int w, int h, const char *label = 0)</a></h4>
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Creates a new <tt>Fl_Chart</tt> widget using the given position, size, and
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label string. The default boxtype is <tt>FL_NO_BOX</tt>.
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<h4><a name="Fl_Chart.~Fl_Chart">virtual Fl_Chart::~Fl_Chart()</a></h4>
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Destroys the <tt>Fl_Chart</tt> widget and all of its data.
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<h4><a name="Fl_Chart.add">void add(double value, const char *label = NULL, uchar color = 0)</a></h4>
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The <tt>add</tt> method adds the <tt>value</tt> and optionally <tt>label</tt>
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and <tt>color</tt> to the chart.
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<h4><a name="Fl_Chart.autosize">uchar autosize(void) const<br>
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void autosize(uchar onoff)</a></h4>
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The <tt>autosize</tt> method controls whether or not the chart will
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automatically adjust the bounds of the chart. The first form returns a
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boolean value that is non-zero if auto-sizing is enabled and zero is auto-sizing
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is disabled.
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<p>The second form of <tt>autosize</tt> sets the auto-sizing property to
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<tt>onoff</tt>.
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<h4><a name="Fl_Chart.bounds">void bounds(double *a, double *b)<br>
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void bounds(double a, double b)</a></h4>
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The <tt>bounds</tt> method gets or sets the lower and upper bounds of the chart
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values to <tt>a</tt> and <tt>b</tt> respectively.
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<h4><a name="Fl_Chart.clear">void clear(void)</a></h4>
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The <tt>clear</tt> method removes all values from the chart.
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<h4><a name="Fl_Chart.insert">void insert(int pos, double value, const char *label = NULL, uchar color = 0)</a></h4>
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The <tt>insert</tt> method inserts a data value at the given position
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<tt>pos</tt>. Position 0 is the first data value.
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<h4><a name="Fl_Chart.maxsize">int maxsize(void) const<br>
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void maxsize(int n)</a></h4>
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The <tt>maxsize</tt> method gets or sets the maximum number of data values for
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a chart.
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<h4><a name="Fl_Chart.replace">void replace(int pos, double value, const char *label = NULL, uchar color = 0)</a></h4>
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The <tt>replace</tt> method replaces data value <tt>pos</tt> with
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<tt>value</tt>, <tt>label</tt>, and <tt>color</tt>. Position 0 is
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the first data value.
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<h4><a name="Fl_Chart.size">int size(void) const</a></h4>
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The <tt>size</tt> method returns the number of data values in the chart.
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<h4><a name="Fl_Chart.type">uchar type() const<br>
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void type(uchar t)</a></h4>
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The first form of <tt>type()</tt> returns the current chart type.
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The chart type can be one of the following:
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<DL>
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<DT>FL_BAR_CHART</DT>
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<DD>Each sample value is drawn as a vertical bar.</DD>
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<DT>FL_FILLED_CHART</DT>
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<DD>The chart is filled from the bottom of the graph to the
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sample values.</DD>
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<DT>FL_HORBAR_CHART</DT>
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<DD>Each sample value is drawn as a horizontal bar.</DD>
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<DT>FL_LINE_CHART</DT>
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<DD>The chart is drawn as a polyline with vertices at each
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sample value.</DD>
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<DT>FL_PIE_CHART</DT>
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<DD>A pie chart is drawn with each sample value being drawn
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as a proportionate slice in the circle.</DD>
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<DT>FL_SPECIALPIE_CHART</DT>
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<DD>Like FL_PIE_CHART, but the first slice is separated from
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the pie.</DD>
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<DT>FL_SPIKE_CHART</DT>
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<DD>Each sample value is drawn as a vertical line.</DD>
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</DL>
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The second form of <tt>type()</tt> sets the chart type to <tt>t</tt>.
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<center><img src="charts.gif" width=80%></center>
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</body>
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</html>
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