[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="8112SpecifyingtextlabelsfortheXaxis.html">
   8  <LINK REL="Next" HREF="8114Usingfilledlinegraphs.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="8112SpecifyingtextlabelsfortheXaxis.html">Previous</A>
  26  <A HREF="8114Usingfilledlinegraphs.html">Next</A>
  27  <HR NOSHADE>
  28  <H3><A NAME="8_1_13">8.1.13 Adjusting the ticks on a text scale</A></H3>
  29  <P> As can be seen in the previous example the X-axis is slightly
  30   cluttered with the labels very close to each other. We might rectify
  31   this by either enlarging the image or just displaying fewer tick label
  32   on the x-axis.</P>
  33  <P> Specifying that we only want, for example, to print every second
  34   label on the axis is done by a call to the method <A href="../ref/Axis.html#_AXIS_SETTEXTLABELINTERVAL">
  35   SetTextLabelInterval()</A> Which would result in the graph<DIV class="example">
  36  <BR> <A href="exframes/frame_example9.1.html" target="blank"><IMG border="0"
  37  HEIGHT="200"  src="img/example9.1.png" WIDTH="350"></A>
  38  <BR><B>Figure 21:</B> Just printing every second label on the X-axis <A href="exframes/frame_example9.1.html"
  39  target="blank">[src]</A>&nbsp;
  40  <P></P>
  41  </DIV></P>
  42  <P></P>
  43  <P> If the text labels are long (for example full dates) then another
  44   way might be to adjust the angle of the text. We could for example
  45   choose to rotate the labels on the X-axis by 90 degrees. With the help
  46   of the <A href="../ref/Axis.html#_AXIS_SETLABELANGLE"> SetLabelAngle()</A>
  47  </P>
  48  <P> Which would then result in the image below<DIV class="example">
  49  <BR> <A href="exframes/frame_example9.2.html" target="blank"><IMG border="0"
  50  HEIGHT="200"  src="img/example9.2.png" WIDTH="350"></A>
  51  <BR><B>Figure 22:</B> Rotating the X-labels 90 degrees <A href="exframes/frame_example9.2.html"
  52  target="blank">[src]</A>&nbsp;
  53  <P></P>
  54  </DIV></P>
  55  <P><DIV class="note"><B>Note:</B> The internal fonts which we have been
  56   using so only supports 0 or 90 degrees rotation. To use arbitrary
  57   angles you must specify TTF fonts. More on fonts later.</DIV></P>
  58  <HR NOSHADE>
  59  <A HREF="toc.html">Contents</A>
  60  <A HREF="8112SpecifyingtextlabelsfortheXaxis.html">Previous</A>
  61  <A HREF="8114Usingfilledlinegraphs.html">Next</A>
  62  </BODY>
  63  </HTML>