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  28  <H3><A NAME="12_2_1">12.2.1 Adjusting the size of the LED digits</A></H3>
  29   There are two parameters that can be used to alter the size of the LED
  30   digits.
  31  <UL>
  32  <LI> The size (in pixels) of each &quot;led diode&quot;</LI>
  33  <LI> The distance, specified as fractions of the &quot;led diode&quot; size
  34   between each &quot;led diode&quot;</LI>
  35  </UL>
  36   These two parameters are given in the constructor which has the
  37   signature <TT>DigitalLED74::DigitalLED74($aRadius=2,$aMargin=0.6)</TT>
  38   as can be seen from the above signature the default size is 2 pixels in
  39   size and a fraction of 0.6 as the distance.<HR NOSHADE>
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