[Sommaire] [Imprimer]

   1  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   2  <HTML>
   3  <HEAD>
   4  <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso-iso-8859-1">
   5  <LINK REL="Start" HREF="index.html">
   6  <LINK REL="Contents" HREF="toc.html">
   7  <LINK REL="Prev" HREF="93Polarplots.html">
   8  <LINK REL="Next" HREF="932Adjustingtheradiusscale.html">
   9  <STYLE TYPE="text/css"><!--
  10  BODY { font-family: serif }
  11  H1 { font-family: sans-serif }
  12  H2 { font-family: sans-serif }
  13  H3 { font-family: sans-serif }
  14  H4 { font-family: sans-serif }
  15  H5 { font-family: sans-serif }
  16  H6 { font-family: sans-serif }
  17  SUB { font-size: smaller }
  18  SUP { font-size: smaller }
  19  PRE { font-family: monospace }
  20  A { text-decoration: none }
  21  --></STYLE>
  22  </HEAD>
  23  <BODY>
  24  <A HREF="toc.html">Contents</A>
  25  <A HREF="93Polarplots.html">Previous</A>
  26  <A HREF="932Adjustingtheradiusscale.html">Next</A>
  27  <HR NOSHADE>
  28  <H3><A NAME="9_3_1">9.3.1 Overview</A></H3>
  29  <P> Each data point in a polar plot is represented by a tuple consisting
  30   of a radius and an angle. The polar plot itself can be either outlined
  31   or filled. In addition each point may have a standard marker (the same
  32   as for line and scatter plots).</P>
  33  <P> The scale for the radius can be either linear or logarithmic.</P>
  34  <P> A polar graph is created by creating an instance of <A href="../ref/PolarGraph.html#_POLARGRAPH_POLARGRAPH">
  35  PolarGraph::PolarGraph()</A>. The polar graph type inherits all the
  36   capabilities of ordinary X-Y graphs, i.e they can have background
  37   images, background gradients, tabbed titles and so on.</P>
  38  <P> Polar graphs comes in two basic types, they can either show a full
  39   360 degree graph or a half 180 degree graph. The two examples below
  40   show these two basic types of graphs.</P>
  41  <P><DIV class="example">
  42  <BR> <A href="exframes/frame_polarex0.html" target="blank"><IMG border="0"
  43  HEIGHT="250"  src="img/polarex0.png" WIDTH="250"></A>
  44  <BR><B>Figure 135:</B> A simple 360 degree polar graph <A href="exframes/frame_polarex0.html"
  45  target="blank">[src]</A>&nbsp;
  46  <P></P>
  47  </DIV></P>
  48  <P><DIV class="example">
  49  <BR> <A href="exframes/frame_polarex0-180.html" target="blank"><IMG border="0"
  50  HEIGHT="250"  src="img/polarex0-180.png" WIDTH="250"></A>
  51  <BR><B>Figure 136:</B> The 180 degree variant polar plot. <A href="exframes/frame_polarex0-180.html"
  52  target="blank">[src]</A>&nbsp;
  53  <P></P>
  54  </DIV></P>
  55  <P></P>
  56  <HR NOSHADE>
  57  <A HREF="toc.html">Contents</A>
  58  <A HREF="93Polarplots.html">Previous</A>
  59  <A HREF="932Adjustingtheradiusscale.html">Next</A>
  60  </BODY>
  61  </HTML>