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<A HREF="toc.html">Contents</A>
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<A HREF="815Usingbackgroundimages.html">Previous</A>
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<HR NOSHADE>
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<H2><A NAME="8_16">8.16 Using a background gradient</A></H2>
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<P> In addition to the background image you can also add a background
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color gradient. This gradient can be covering the entire graph, just
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the plot area or just the margins. This flexibility allows you to
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combine a background image with a background color gradient. You can
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for example use a background image in the plot area and a color
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gradient out in the margins.</P>
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<P> You specify a color gradient background by calling the <A href="../ref/Graph.html#_GRAPH_SETBACKGROUNDGRADIENT">
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Graph::SetBackgroundGradient()</A> method. All details are available in
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the class reference (follow the link above). We finally give a quick
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example on what kind of effect you can achieve using this feature.<DIV class="example">
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<BR> <A href="exframes/frame_gradbkgex1.html" target="blank"><IMG border="0"
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HEIGHT="200" src="img/gradbkgex1.png" WIDTH="300"></A>
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<BR><B>Figure 90:</B> Using a background color gradient with the
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SetBackgroundGradient() method <A href="exframes/frame_gradbkgex1.html" target="blank">
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[src]</A>
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<P></P>
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</DIV></P>
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<P></P>
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<P> Finally we like to mention that in the "/utils/misc/" directory you
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will find a small utility script called "mkgrad.php". Running this
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script presents you with a UI that makes it a breeze to create a
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gradient image on it's own.</P>
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<P> The UI for the utility is so obvious that we won't discuss it
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further, we just show it below. <IMG alt="The UI for the mkgrad.php utility"
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src="img/"><I> The UI for the mkgrad.php utility</I></P>
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<P> In the example below this utility is used to get a more interesting
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plot area.</P>
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<P><DIV class="example">
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<BR> <A href="exframes/frame_inyaxisex2.html" target="blank"><IMG border="0"
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HEIGHT="300" src="img/inyaxisex2.png" WIDTH="400"></A>
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<BR><B>Figure 91:</B> Example of the use of a gradient background <A href="exframes/frame_inyaxisex2.html"
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target="blank">[src]</A>
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