1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> 2 3<!--Converted with LaTeX2HTML 2018.3 (Released July 19, 2018) --> 4<HTML lang="EN"> 5<HEAD> 6<TITLE>get_fits_size</TITLE> 7<META NAME="description" CONTENT="get_fits_size"> 8<META NAME="keywords" CONTENT="csub"> 9<META NAME="resource-type" CONTENT="document"> 10<META NAME="distribution" CONTENT="global"> 11 12<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> 13<META NAME="viewport" CONTENT="width=device-width, initial-scale=1.0"> 14<META NAME="Generator" CONTENT="LaTeX2HTML v2018.3"> 15 <link rel='apple-touch-icon' sizes='180x180' href='images/favicons/apple-touch-icon.png?v=2017'> 16 <link rel='icon' type='image/png' sizes='32x32' href='images/favicons/favicon-32x32.png?v=2017'> 17 <link rel='icon' type='image/png' sizes='16x16' href='images/favicons/favicon-16x16.png?v=2017'> 18 <link rel='manifest' href='images/favicons/manifest.json?v=2017'> 19 <link rel='mask-icon' href='images/favicons/safari-pinned-tab.svg?v=2017' color='#5bbad5'> 20 <link rel='shortcut icon' href='images/favicons/favicon.ico?v=2017'> 21 <meta name='apple-mobile-web-app-title' content='HEALPix'> 22 <meta name='application-name' content='HEALPix'> 23 <meta name='msapplication-config' content='images/favicons/browserconfig.xml?v=2017'> 24 <meta name='theme-color' content='#ffffff'> 25 26<LINK REL="STYLESHEET" HREF="csub.css"> 27 28<LINK REL="next" HREF="csub_npix2nside.htm"> 29<LINK REL="previous" HREF="csub_ang2vec.htm"> 30<LINK REL="next" HREF="csub_npix2nside.htm"> 31</HEAD> 32 33<body text="#000000" bgcolor="#FFFFFA"> 34 35<DIV CLASS="navigation"><!--Navigation Panel--> 36<A 37 HREF="csub_ang2vec.htm"> 38<IMG WIDTH="63" HEIGHT="24" ALT="previous" SRC="prev.png"></A> 39<A 40 HREF="csub_HEALPix_C_subroutines.htm"> 41<IMG WIDTH="26" HEIGHT="24" ALT="up" SRC="up.png"></A> 42<A 43 HREF="csub_npix2nside.htm"> 44<IMG WIDTH="37" HEIGHT="24" ALT="next" SRC="next.png"></A> 45<A ID="tex2html42" 46 HREF="csub_Contents.htm"> 47<IMG WIDTH="65" HEIGHT="24" ALT="contents" SRC="contents.png"></A> 48<BR> 49<B> Previous:</B> <A 50 HREF="csub_ang2vec.htm">ang2vec</A> 51 52<B>Up:</B> <A 53 HREF="csub_HEALPix_C_subroutines.htm">HEALPix/C subroutines</A> 54 55<B> Next:</B> <A 56 HREF="csub_npix2nside.htm">npix2nside</A> 57<B> Top:</B> <a href="main.htm">Main Page</a></DIV> 58<!--End of Navigation Panel--> 59 60<H1><A ID="SECTION700"></A> 61<A ID="csub:get_fits_size"></A> 62<BR> 63 64</H1> 65 66<P> 67<b><font size=+6><FONT COLOR="#CC0000">get_fits_size</FONT></font></b><hr> 68<H3>This routine reads the number of pixels, the resolution parameter and the pixel ordering of a FITS file containing a <b>HEALPix</b> map.</H3> 69Location in HEALPix directory tree: <a href="https://sourceforge.net/p/healpix/code/1005/tree/trunk/src/C/subs/chealpix.c"><b>src/C/subs/chealpix.c</b></a> 70 71<P> 72<hr><h1>FORMAT </h1><h3> 73long <FONT COLOR="#CC0000">get_fits_size</FONT>(char *filename, long *nside, char *ordering) 74</h3> 75 76<P> 77<hr><H1>ARGUMENTS</H1> 78 79<TABLE CELLPADDING=3 BORDER="1"> 80<TR><TH ALIGN="LEFT" VALIGN="TOP" WIDTH=150><SPAN CLASS="textbf">name&dimensionality</SPAN></TH> 81<TH ALIGN="LEFT" VALIGN="TOP" WIDTH=25><SPAN CLASS="textbf">kind</SPAN></TH> 82<TH ALIGN="LEFT" VALIGN="TOP" WIDTH=25><SPAN CLASS="textbf">in/out</SPAN></TH> 83<TH ALIGN="LEFT" VALIGN="TOP" WIDTH=250><SPAN CLASS="textbf">description</SPAN></TH> 84</TR> 85<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=150> </TD> 86<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25> </TD> 87<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25> </TD> 88<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=250> </TD> 89</TR> 90<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=150> 91<FONT COLOR="#CC0000">get_fits_size</FONT></TD> 92<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>long</TD> 93<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>OUT</TD> 94<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=250>number of pixels the FITS file</TD> 95</TR> 96<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=150>filename</TD> 97<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>char</TD> 98<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>IN</TD> 99<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=250>filename of the FITS-file containing the <b>HEALPix</b> map.</TD> 100</TR> 101<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=150>ordering</TD> 102<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>char</TD> 103<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>OUT</TD> 104<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=250>pixel ordering, either 'RING' or 'NESTED'</TD> 105</TR> 106<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=150>nside</TD> 107<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>long</TD> 108<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=25>OUT</TD> 109<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=250>Healpix resolution parameter Nside</TD> 110</TR> 111</TABLE> 112 113<P> 114<HR><H1>EXAMPLE:</H1> 115<tt>long npix, nside ; 116<BR> 117char file[180]=”map.fits” ; 118<BR> 119char order[10] ; 120<BR> 121npix= get_fits_size(file, &nside, order) 122<BR></tt> 123<blockquote> 124Returns in npix the number of pixel in the file 'map.fits', and read in nside or 125order its resolution parameter or ordering scheme</blockquote> 126 127<P> 128<hr><H1>RELATED ROUTINES</H1><h3>This section lists the routines related to <b><FONT COLOR="#CC0000">get_fits_size</FONT></b></h3> 129 130 <DL COMPACT><DT> 131<B><A HREF="csub_read_healpix_map.htm#csub:read_healpix_map">read_healpix_map</A></B> 132<DD>subroutine to read <b>HEALPix</b> maps 133 <DT> 134<B><A HREF="csub_write_healpix_map.htm#csub:write_healpix_map">write_healpix_map</A></B> 135<DD>subroutine to write <b>HEALPix</b> maps 136 </DL> 137 138<P> 139 140<P> 141 142 143<P> 144 145<P> 146 147<DIV CLASS="navigation"><HR> 148<!--Navigation Panel--> 149<A 150 HREF="csub_ang2vec.htm"> 151<IMG WIDTH="63" HEIGHT="24" ALT="previous" SRC="prev.png"></A> 152<A 153 HREF="csub_HEALPix_C_subroutines.htm"> 154<IMG WIDTH="26" HEIGHT="24" ALT="up" SRC="up.png"></A> 155<A 156 HREF="csub_npix2nside.htm"> 157<IMG WIDTH="37" HEIGHT="24" ALT="next" SRC="next.png"></A> 158<A ID="tex2html42" 159 HREF="csub_Contents.htm"> 160<IMG WIDTH="65" HEIGHT="24" ALT="contents" SRC="contents.png"></A> 161<BR> 162<B> Previous:</B> <A 163 HREF="csub_ang2vec.htm">ang2vec</A> 164 165<B>Up:</B> <A 166 HREF="csub_HEALPix_C_subroutines.htm">HEALPix/C subroutines</A> 167 168<B> Next:</B> <A 169 HREF="csub_npix2nside.htm">npix2nside</A> 170<B> Top:</B> <a href="main.htm">Main Page</a></DIV> 171<!--End of Navigation Panel--> 172<ADDRESS> 173Version 3.50, 2018-12-10 174</ADDRESS> 175</BODY> 176</HTML> 177
