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<H3><A name="HDREXTRACT" ></A>Extract</H3>
<A NAME="IDX486"></A><A NAME="IDX487"></A>
<P><STRONG>Category</STRONG>
<P>
<A HREF="refgu008.htm#HDRCATSTR">Structuring</A>
<P><STRONG>Function</STRONG>
<P>
Extracts a component from a field.
<P><STRONG>Syntax</STRONG>
<PRE><STRONG>output</STRONG> = Extract(<STRONG>input, name</STRONG>);
</PRE>
<P><STRONG>Inputs</STRONG>
<BR>
<TABLE BORDER>
<TR>
<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Name
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Type
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Default
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">Description
</TH></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>input</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">field
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">none
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">the field from which a component
is to be extracted
</TD></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>name</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">string
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">"data"
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">the component to extract
</TD></TR></TABLE>
<P><STRONG>Outputs</STRONG>
<BR>
<TABLE BORDER>
<TR>
<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">Name
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">Type
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="50%">Description
</TH></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="25%"><TT><STRONG>output</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">object
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="50%">the named component
</TD></TR></TABLE>
<P><STRONG>Functional Details</STRONG>
<P>
This module creates an <TT><STRONG>output</STRONG></TT> object containing
only the <TT><STRONG>name</STRONG></TT> component from the
<TT><STRONG>input</STRONG></TT> field.
If <TT><STRONG>input</STRONG></TT> is a group, <TT><STRONG>output</STRONG></TT>
is a group of array objects.
<P><STRONG>Components</STRONG>
<P>
Only the components extracted are propagated to the output.
<P><STRONG>Example Visual Programs</STRONG>
<PRE>
MultipleDataSets.net
PlotTwoLines.net
UsingTextAndTextGlyphs.net
</PRE>
<P><STRONG>See Also</STRONG>
<P>
<A HREF="refgu093.htm#HDRMARK">Mark</A>,
<A HREF="refgu116.htm#HDRREMOVE">Remove</A>,
<A HREF="refgu117.htm#HDRRENAME">Rename</A>,
<A HREF="refgu120.htm#HDRREPLACE">Replace</A>,
<A HREF="refgu164.htm#HDRUNMARK">Unmark</A>
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