[Sommaire] [Imprimer]

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  28  <H2><A NAME="4_5">4.5  Choosing the image format for JpGraph</A></H2>
  29  <P> By default JpGraph automatically chooses the image format to use in
  30   the order PNG, JPEG and GIF. The exact format depends on what is
  31   available on your system. There are two ways you can influence the way
  32   the graphic format is chosen.</P>
  33  <OL>
  34  <LI> Change the default graphic format by changing the DEFINE<DIV class="phpscript">
  35  <CODE><FONT color="#000000"> <FONT color="#0000BB">&nbsp;DEFINE</FONT><FONT color="#007700">
  36  (</FONT><FONT color="#DD0000">&quot;DEFAULT_GFORMAT&quot;</FONT><FONT color="#007700">
  37  ,</FONT><FONT color="#DD0000">&quot;auto&quot;</FONT><FONT color="#007700">);</FONT><FONT
  38  color="#0000BB"></FONT></FONT></CODE></DIV>
  39  <P></P>
  40  </LI>
  41  <LI> Set the graphic format in your script by calling the method <A href="../ref/Image.html#_IMAGE_SETIMGFORMAT">
  42   SetImgFormat()</A> For example, to force your script to use JPEG in one
  43   specific image use<DIV class="phpscript"><CODE><FONT color="#000000"> <FONT
  44  color="#0000BB">&nbsp;$graph</FONT><FONT color="#007700">-&gt;</FONT><FONT color="#0000BB">
  45  img</FONT><FONT color="#007700">-&gt;</FONT><FONT color="#0000BB">
  46  SetImgFormat</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
  47  &quot;jpeg&quot;</FONT><FONT color="#007700">)</FONT><FONT color="#0000BB"></FONT></FONT>
  48  </CODE></DIV>
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