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  27  <HR NOSHADE>
  28  <H2><A NAME="7_12">7.12 Adding arbitrary text strings to the graph</A></H2>
  29  <P> To add clarification or other information text strings to the graph
  30   you can add arbitrary lines of text anywhere you like onto the graph.
  31   The text might have multiple lines and you can choose the paragraph
  32   alignment.</P>
  33  <P> To add text you have to create one or more instances of the <A href="../ref/Text.html#_C_TEXT">
  34   Text()</A> object and then add the text object to the graph with the <A href="../ref/Graph.html#_GRAPH_ADDTEXT">
  35   AddText()</A> method.</P>
  36  <P> The position of these text boxes are given as fraction of the width
  37   and height of the graph. When you are positioning these text boxes you
  38   might also choose what part of the text box should be considered the
  39   anchor point for the position you specify.</P>
  40  <P> By default the anchor point is the upper left corner of the bounding
  41   box for the text.</P>
  42  <P> To show some ways of positioning the text we use a very simple bar
  43   graph not to distract from the text. We first just add a single text
  44   line with most of the settings their default value by adding the
  45   following lines to the graph<DIV class="phpscript"><CODE><FONT color="#000000">
  46   <FONT color="#0000BB">&nbsp;$txt</FONT><FONT color="#007700">=new&nbsp;</FONT><FONT
  47  color="#0000BB">Text</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
  48  &quot;This&nbsp;is&nbsp;a&nbsp;text&quot;</FONT><FONT color="#007700">);
  49  <BR></FONT><FONT color="#0000BB">$txt</FONT><FONT color="#007700">-&gt;</FONT><FONT
  50  color="#0000BB">Pos</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
  51  0</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">0</FONT><FONT
  52  color="#007700">);
  53  <BR></FONT><FONT color="#0000BB">$txt</FONT><FONT color="#007700">-&gt;</FONT><FONT
  54  color="#0000BB">SetColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
  55  &quot;red&quot;</FONT><FONT color="#007700">);
  56  <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-&gt;</FONT><FONT
  57  color="#0000BB">AddText</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
  58  $txt</FONT><FONT color="#007700">);</FONT><FONT color="#0000BB"></FONT></FONT>
  59  </CODE></DIV></P>
  60  <P> The result is shown below.<DIV class="example">
  61  <BR> <A href="exframes/frame_example25.html" target="blank"><IMG border="0"
  62  HEIGHT="200"       src="img/img/img/img/img/img/example25.png" WIDTH="300"></A>
  63  <BR><B>Figure 89:</B> Adding a single text string in the upper left
  64   corner <A href="exframes/frame_example25.html" target="blank">[src]</A>
  65  &nbsp;
  66  <P></P>
  67  </DIV></P>
  68  <P>Not too exiting. Let's make it more interesting by having a
  69   background color, using larger fonts and framing the text box and
  70   adding a drop shadow to the text box by using the methods <A href="../ref/Text.html#_TEXT_SETBOX">
  71   SetBox()</A> and <A href="../ref/Text.html#_TEXT_SETSHADOW"> SetBox()</A><DIV
  72  class="example">
  73  <BR> <A href="exframes/frame_example25.1.html" target="blank"><IMG border="0"
  74  HEIGHT="200"       src="img/img/img/img/img/img/example25.1.png" WIDTH="300"></A>
  75  <BR><B>Figure 90:</B> Making the text more interesting <A href="exframes/frame_example25.1.html"
  76  target="blank">[src]</A>&nbsp;
  77  <P></P>
  78  </DIV></P>
  79  <P> That's better. Now we get some attention. If you want to add a text
  80   with several lines you just need to separate the lines with a newline
  81   ('\n' character). The default paragraph alignment is left edge but you
  82   can also use right and center alignment.</P>
  83  <P> As an illustration let's add a couple of more lines to the previous
  84   text, center the text box in the middle of the graph and also use
  85   centered paragraph alignment for the text. To adjust the paragraph
  86   alignment of the text you have to use the <A href="../ref/Text.html#_TEXT_PARAGRAPHALIGN">
  87   Text::ParagraphAlign()</A><DIV class="example">
  88  <BR> <A href="exframes/frame_example25.2.html" target="blank"><IMG border="0"
  89  HEIGHT="200"       src="img/img/img/img/img/img/example25.2.png" WIDTH="300"></A>
  90  <BR><B>Figure 91:</B> Text with multiple lines and centered paragraph
  91   alignment <A href="exframes/frame_example25.2.html" target="blank">
  92  [src]</A>&nbsp;
  93  <P></P>
  94  </DIV></P>
  95  <P> Of course there is no limit to the number of text string you can add
  96   to the graph.</P>
  97  <P> From version 1.12 it is also possible to add text strings to a graph
  98   using the scale coordinates instead. This is accomplished by using the <A
  99  href="../ref/Text.html#_TEXT_SETSCALEPOS"> Text::SetScalePos()</A> Which
 100   is completely analog to SetPos() with the only difference that the
 101   positions given are interpretated as scale values instead of fractions
 102   of the width and height.</P>
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