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<H3><A NAME="9_1_3">9.1.3 Adding grid line to the radar plot</A></H3>
<P> Each major tick mark can also be connected together to create a
 grid. The grid is accessed through the 'grid' property of the graph. To
 enable the grid and set the line style to &quot;dotted&quot; you would have to
 add the lines<DIV class="phpscript"><CODE><FONT color="#000000"> <FONT color="#0000BB">
&nbsp;$graph</FONT><FONT color="#007700">-&gt;</FONT><FONT color="#0000BB">grid</FONT><FONT
color="#007700">-&gt;</FONT><FONT color="#0000BB">Show</FONT><FONT color="#007700">
();
<BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-&gt;</FONT><FONT
color="#0000BB">grid</FONT><FONT color="#007700">-&gt;</FONT><FONT color="#0000BB">
SetLineStyle</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
&quot;dotted&quot;</FONT><FONT color="#007700">);</FONT><FONT color="#0000BB"></FONT>
</FONT></CODE></DIV></P>
<P>and would result in the following graph<DIV class="example">
<BR> <A href="exframes/frame_radarex4.html" target="blank"><IMG border="0"
HEIGHT="200"  src="img/radarex4.png" WIDTH="250"></A>
<BR><B>Figure 113:</B> Adding dotted gridlines to the graph <A href="exframes/frame_radarex4.html"
target="blank">[src]</A>&nbsp;
<P></P>
</DIV></P>
<P>By design the plot is above the grid line but beneath the axis in
 image depth, hence some part of the grid lines are hidden.</P>
<P> To have the grid lines more &quot;visible&quot; just change their color, say
 to, dark red by invoking the SetColor() method on the grid lines which
 would give the following result</P>
<P> Another simple change we could do would be to just change the
 background color of the radar graph. This is (not surprisingly) done by
 a call to the method SetColor() invoked on the graph object.<DIV class="example">
<BR> <A href="exframes/frame_radarex6.html" target="blank"><IMG border="0"
HEIGHT="200"  src="img/radarex6.png" WIDTH="250"></A>
<BR><B>Figure 114:</B> Changing the background color <A href="exframes/frame_radarex6.html"
target="blank">[src]</A>&nbsp;
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