Mention the ability to render a subset of the SVG

parent a0a11471
......@@ -29,9 +29,12 @@
<title>Rendering</title>
<para>
Once you have a loaded RsvgHandle, you can render it to a Cairo
context any number of times, or to different Cairo contexts, as
needed.
Once you have an SVG image loaded into an RsvgHandle, you can
render it to a Cairo context any number of times, or to
different Cairo contexts, as needed. As a convenience, you can
pick a single element in the SVG by its "id" attribute and
render only that element; this is so that sub-elements can be
extracted conveniently out of a larger SVG.
</para>
</formalpara>
</chapter>
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