<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 98.1p1 release (March 2nd, 1998) originally by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>Graphic Cursor Commands</TITLE> <META NAME="description" CONTENT="Graphic Cursor Commands"> <META NAME="keywords" CONTENT="vol1"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <LINK REL="STYLESHEET" HREF="vol1.css"> <LINK REL="next" HREF="node81.html"> <LINK REL="previous" HREF="node76.html"> <LINK REL="up" HREF="node70.html"> <LINK REL="next" HREF="node81.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html1499" HREF="node81.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html1495" HREF="node70.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html1489" HREF="node79.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html1497" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <A NAME="tex2html1498" HREF="node216.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="icons.gif/index_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html1500" HREF="node81.html">Handling of Plotfiles</A> <B> Up:</B> <A NAME="tex2html1496" HREF="node70.html">Graphic Facilities</A> <B> Previous:</B> <A NAME="tex2html1490" HREF="node79.html">Plotting text, symbols, and</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00915000000000000000"> </A> <A NAME="graphic-cursor-commands"> </A> <BR> Graphic Cursor Commands </H2> In some of the analysis programs in MIDAS the graphic cursor is a powerful tool. For example, using the cursor one can retrieve wavelengths and line intensities in a plotted spectrum, integration of emission or absorption lines over a wavelength range selected by the cursor, compute the line width and center, etc. With the general <TT>GET/GCURSOR</TT> command the user can retrieve information from plotted data and store this in a table. Listed below are some of the core and application commands which use cursor interaction. Many additional graphics commands, including those that use cursor interaction, are available in the various contexts, <I>e.g.</I> <TT>SPEC</TT> and <TT>ECHELLE</TT>. <BR> <TABLE CELLPADDING=3> <TR><TD ALIGN="LEFT"><TT> GET/GCURSOR</TT></TD> <TD ALIGN="LEFT">read coordinates from graphics screen</TD> </TR> <TR><TD ALIGN="LEFT"><TT> CENTER/GAUSS</TT></TD> <TD ALIGN="LEFT">computes center of a 1-dim. or 2-dim. feature</TD> </TR> <TR><TD ALIGN="LEFT"><TT> MODIFY/GCURSOR</TT></TD> <TD ALIGN="LEFT">change data line of an image interactively</TD> </TR> <TR><TD ALIGN="LEFT"><TT> INTEGRATE/APERTURE</TT></TD> <TD ALIGN="LEFT">compute flux inside an aperture</TD> </TR> <TR><TD ALIGN="LEFT"><TT> INTEGRATE/LINE</TT></TD> <TD ALIGN="LEFT">integrate row of a frame using the cursor</TD> </TR> <TR><TD ALIGN="LEFT"><TT> INTEGRATE/STAR</TT></TD> <TD ALIGN="LEFT">compute flux, radius and background of stars</TD> </TR> </TABLE> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html1499" HREF="node81.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html1495" HREF="node70.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html1489" HREF="node79.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html1497" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <A NAME="tex2html1498" HREF="node216.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="icons.gif/index_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html1500" HREF="node81.html">Handling of Plotfiles</A> <B> Up:</B> <A NAME="tex2html1496" HREF="node70.html">Graphic Facilities</A> <B> Previous:</B> <A NAME="tex2html1490" HREF="node79.html">Plotting text, symbols, and</A> <!--End of Navigation Panel--> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-09</I> </ADDRESS> </BODY> </HTML>
