1<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3//EN"> 2<HTML><HEAD> 3 <TITLE>User's Reference - Attribute</TITLE> 4 <META HTTP-EQUIV="keywords" CONTENT="GRAPHICS VISUALIZATION VISUAL PROGRAM DATA 5MINING"> 6 <meta http-equiv="content-type" content="text/html;charset=ISO-8859-1"> 7</HEAD><BODY BGCOLOR="#FFFFFF" link="#00004b" vlink="#4b004b"> 8 <TABLE width=510 border=0 cellpadding=0 cellspacing=0> 9 <TR> 10 <TD><IMG src="../images/spacer.gif" width=80 height=1></TD> 11 <TD><IMG src="../images/spacer.gif" width=49 height=1></TD> 12 <TD><IMG src="../images/spacer.gif" width=24 height=1></TD> 13 <TD><IMG src="../images/spacer.gif" width=100 height=1></TD> 14 <TD><IMG src="../images/spacer.gif" width=3 height=1></TD> 15 <TD><IMG src="../images/spacer.gif" width=127 height=1></TD> 16 <TD><IMG src="../images/spacer.gif" width=6 height=1></TD> 17 <TD><IMG src="../images/spacer.gif" width=50 height=1></TD> 18 <TD><IMG src="../images/spacer.gif" width=71 height=1></TD> 19 </TR> 20 <TR> 21 <TD colspan=9><IMG src="../images/flcgh_01.gif" width=510 height=24 alt="OpenDX - Documentation"></TD> 22 </TR> 23 <TR> 24 <TD colspan=2><A href="../allguide.htm"><IMG src="../images/flcgh_02.gif" width=129 height=25 border="0" alt="Full Contents"></A></TD> 25 <TD colspan=3><A href="../qikguide.htm"><IMG src="../images/flcgh_03.gif" width=127 height=25 border="0" alt="QuickStart Guide"></A></TD> 26 <TD><A href="../usrguide.htm"><IMG src="../images/flcgh_04.gif" width=127 height=25 border="0" alt="User's Guide"></A></TD> 27 <TD colspan=3><B><A href="../refguide.htm"><IMG src="../images/flcgh_05d.gif" width=127 height=25 border="0" alt="User's Reference"></A></B></TD> 28 </TR> 29 <TR> 30 <TD><A href="refgu012.htm"><IMG src="../images/flcgh_06.gif" width=80 height=17 border="0" alt="Previous Page"></A></TD> 31 <TD colspan=2><A href="refgu014.htm"><IMG src="../images/flcgh_07.gif" width=73 height=17 border="0" alt="Next Page"></A></TD> 32 <TD><A href="../refguide.htm"><IMG src="../images/flcgh_08.gif" width=100 height=17 border="0" alt="Table of Contents"></A></TD> 33 <TD colspan=3><A href="refgu009.htm"><IMG src="../images/flcgh_09.gif" width=136 height=17 border="0" alt="Partial Table of Contents"></A></TD> 34 <TD><A href="refgu175.htm"><IMG src="../images/flcgh_10.gif" width=50 height=17 border="0" alt="Index"></A></TD> 35 <TD><A href="../srchindx.htm"><IMG src="../images/flcgh_11.gif" width=71 height=17 border="0" alt="Search"></A></TD> 36 </TR> 37 </TABLE> 38 <H3><A name="HDRATTRIB" ></A>Attribute</H3> 39 <A NAME="IDX364"></A><A NAME="IDX365"></A> 40<P><STRONG>Category</STRONG> 41<P> 42<A HREF="refgu008.htm#HDRCATSTR">Structuring</A> 43<P><STRONG>Function</STRONG> 44<P> 45Extracts an attribute from an Object. 46<A NAME="IDX366"></A> 47<P><STRONG>Syntax</STRONG> 48<PRE> 49<STRONG>object</STRONG> = Attribute(<STRONG>input</STRONG>, <STRONG>attribute</STRONG>); 50</PRE> 51<P><STRONG>Inputs</STRONG> 52<BR> 53<TABLE BORDER> 54<TR> 55<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Name 56</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Type 57</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Default 58</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">Description 59</TH></TR><TR> 60<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>input</STRONG></TT> 61</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">object 62</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">none 63</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">object from which the attribute 64is obtained 65</TD></TR><TR> 66<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>attribute</STRONG></TT> 67</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">string 68</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">"name" 69</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">attribute name 70</TD></TR></TABLE> 71<P><STRONG>Outputs</STRONG> 72<BR> 73<TABLE BORDER> 74<TR> 75<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">Name 76</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">Type 77</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="50%">Description 78</TH></TR><TR> 79<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="25%"><TT><STRONG>object</STRONG></TT> 80</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">object 81</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="50%">attribute value 82</TD></TR></TABLE> 83<P><STRONG>Functional Details</STRONG> 84<P> 85<TABLE CELLPADDING="3"> 86<TR VALIGN="TOP"><TD><P><B><TT><STRONG>input</STRONG></TT> 87</B></TD><TD><P>is an Object with an attribute to be extracted. 88</TD></TR><TR VALIGN="TOP"><TD><P><B><TT><STRONG>attribute</STRONG></TT> 89</B></TD><TD><P>is the name of the attribute to be extracted. 90</TD></TR></TABLE> 91 92There are various attributes which have definite meanings in Data Explorer (see 93<A HREF="refgu098.htm#HDROPTIONS">Options</A>). You can also add your own 94attributes to 95objects. In addition, some modules 96(<A HREF="refgu125.htm#HDRRUBBERS">RubberSheet</A>, 97<A HREF="refgu081.htm#HDRISOSURF">Isosurface</A>, 98<A HREF="refgu019.htm#HDRAUTGRID">AutoGrid</A>, 99<A HREF="refgu163.htm#HDRTUBE">Tube</A>, 100<A HREF="refgu122.htm#HDRRIBBON">Ribbon</A>) 101add attributes specifying the value of a particular value computed and used in 102creating a realization. 103 104<P><STRONG>Example Visual Program</STRONG> 105<PRE> 106UsingAttributes.net 107</PRE> 108<P><STRONG>See Also</STRONG> 109<P> 110 <A HREF="refgu098.htm#HDROPTIONS">Options</A>, 111 112 <A HREF="refgu125.htm#HDRRUBBERS">RubberSheet</A>, 113 <A HREF="refgu081.htm#HDRISOSURF">Isosurface</A>, 114 <A HREF="refgu019.htm#HDRAUTGRID">AutoGrid</A>, 115 <A HREF="refgu163.htm#HDRTUBE">Tube</A>, 116 <A HREF="refgu122.htm#HDRRIBBON">Ribbon</A> 117 <P> 118 <HR> 119 <DIV align="center"> 120 <P><A href="../allguide.htm"><IMG src="../images/foot-fc.gif" width="94" height="18" border="0" alt="Full Contents"></A> <A href="../qikguide.htm"><IMG src="../images/foot-qs.gif" width="94" height="18" border="0" alt="QuickStart Guide"></A> <A href="../usrguide.htm"><IMG src="../images/foot-ug.gif" width="94" height="18" border="0" alt="User's Guide"></A> <A href="../refguide.htm"><IMG src="../images/foot-ur.gif" width="94" height="18" border="0" alt="User's Reference"></A></P> 121 </DIV> 122 <DIV align="center"> 123 <P><FONT size="-1">[ <A href="http://www.research.ibm.com/dx">OpenDX Home at IBM</A> | <A href="http://www.opendx.org/">OpenDX.org</A> ] </FONT></P> 124 <P></P> 125 </DIV> 126 <P></P> 127 </BODY></HTML> 128
