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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-03-04 21:21:30 -0500 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-03-04 21:21:30 -0500 |
| commit | d54fe7c1f704a63824c5bfa0ece65245572e9b27 (patch) | |
| tree | afc52015ffc2c74e0266653eecef1c8ef8ba5d91 /src/slalib/sun67.htx/node195.html | |
| download | calfuse-d54fe7c1f704a63824c5bfa0ece65245572e9b27.tar.gz | |
Initial commit
Diffstat (limited to 'src/slalib/sun67.htx/node195.html')
| -rw-r--r-- | src/slalib/sun67.htx/node195.html | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/slalib/sun67.htx/node195.html b/src/slalib/sun67.htx/node195.html new file mode 100644 index 0000000..2b33ece --- /dev/null +++ b/src/slalib/sun67.htx/node195.html @@ -0,0 +1,114 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997) + 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 Lippman, Marek Rouchal, Martin Wilck and others --> +<HTML> +<HEAD> +<TITLE>SLA_XY2XY - Apply Linear Model to an </TITLE> +<META NAME="description" CONTENT="SLA_XY2XY - Apply Linear Model to an "> +<META NAME="keywords" CONTENT="sun67"> +<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="sun67.css"> +<LINK REL="next" HREF="node196.html"> +<LINK REL="previous" HREF="node194.html"> +<LINK REL="up" HREF="node13.html"> +<LINK REL="next" HREF="node196.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html2376" HREF="node196.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html2374" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html2368" HREF="node194.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html2377" HREF="node196.html">SLA_ZD - to Zenith Distance</A> +<BR> +<B>Up:</B> <A NAME="tex2html2375" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html2369" HREF="node194.html">SLA_WAIT - Time Delay</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<H2><A NAME="SECTION0004182000000000000000"> </A><A NAME="xref_SLA_XY2XY"> </A><A NAME="SLA_XY2XY"> </A> +<BR> +SLA_XY2XY - Apply Linear Model to an <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"></H2> + <DL> +<DT><STRONG>ACTION:</STRONG> +<DD>Transform one <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"> into another using a linear model of the type +produced by the sla_FITXY routine. +<P> <DT><STRONG>CALL:</STRONG> +<DD><TT>CALL sla_XY2XY (X1,Y1,COEFFS,X2,Y2)</TT> +<P> </DL> +<P> <DL> +<DT><STRONG>GIVEN:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>X1,Y1</EM></TD> +<TH ALIGN="LEFT"><B>D</B></TH> +<TD ALIGN="LEFT" NOWRAP><IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"> before transformation</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>COEFFS</EM></TD> +<TD ALIGN="LEFT"><B>D(6)</B></TD> +<TD ALIGN="LEFT" NOWRAP>transformation coefficients (see note)</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>RETURNED:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>X2,Y2</EM></TD> +<TH ALIGN="LEFT"><B>D</B></TH> +<TD ALIGN="LEFT" NOWRAP><IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"> after transformation</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>NOTES:</STRONG> +<DD><DL COMPACT> +<DT>1. +<DD>The model relates two sets of <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"> coordinates as follows. +Naming the six elements of COEFFS <I>a</I>,<I>b</I>,<I>c</I>,<I>d</I>,<I>e</I> & <I>f</I>, +the present routine performs the transformation: + <BLOCKQUOTE><I>x<SUB>2</SUB></I> = <I>a</I> + <I>bx<SUB>1</SUB></I> + <I>cy<SUB>1</SUB></I> <BR> + <I>y<SUB>2</SUB></I> = <I>d</I> + <I>ex<SUB>1</SUB></I> + <I>fy<SUB>1</SUB></I></BLOCKQUOTE> + <DT>2. +<DD>See also sla_FITXY, sla_PXY, sla_INVF, sla_DCMPF. + </DL></DL> +<BR> <HR> +<A NAME="tex2html2376" HREF="node196.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html2374" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html2368" HREF="node194.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html2377" HREF="node196.html">SLA_ZD - to Zenith Distance</A> +<BR> +<B>Up:</B> <A NAME="tex2html2375" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html2369" HREF="node194.html">SLA_WAIT - Time Delay</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<ADDRESS> +<I>SLALIB --- Positional Astronomy Library<BR>Starlink User Note 67<BR>P. T. Wallace<BR>12 October 1999<BR>E-mail:ptw@star.rl.ac.uk</I> +</ADDRESS> +</BODY> +</HTML> |