diff options
Diffstat (limited to 'funtools/man/man7/regdiff.7')
| -rw-r--r-- | funtools/man/man7/regdiff.7 | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/funtools/man/man7/regdiff.7 b/funtools/man/man7/regdiff.7 new file mode 100644 index 0000000..c9f6f6a --- /dev/null +++ b/funtools/man/man7/regdiff.7 @@ -0,0 +1,181 @@ +.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32 +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. | will give a +.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to +.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C' +.\" expand to `' in nroff, nothing in troff, for use with C<>. +.tr \(*W-|\(bv\*(Tr +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" If the F register is turned on, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.\" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.hy 0 +.if n .na +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +. \" fudge factors for nroff and troff +.if n \{\ +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP +.\} +.if t \{\ +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& +.\} +. \" simple accents for nroff and troff +.if n \{\ +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / +.\} +.if t \{\ +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' +.\} +. \" troff and (daisy-wheel) nroff accents +.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' +.ds 8 \h'\*(#H'\(*b\h'-\*(#H' +.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] +.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' +.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' +.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] +.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] +.ds ae a\h'-(\w'a'u*4/10)'e +.ds Ae A\h'-(\w'A'u*4/10)'E +. \" corrections for vroff +.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' +.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' +. \" for low resolution devices (crt and lpr) +.if \n(.H>23 .if \n(.V>19 \ +\{\ +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE +.\} +.rm #[ #] #H #V #F C +.\" ======================================================================== +.\" +.IX Title "regdiff 7" +.TH regdiff 7 "April 14, 2011" "version 1.4.5" "SAORD Documentation" +.SH "NAME" +RegDiff \- Differences Between Funtools and IRAF Regions +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +Describes the differences between Funtools/ds9 regions and the old \s-1IRAF/PROS\s0 +regions. +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +We have tried to make Funtools regions compatible with their +predecessor, \s-1IRAF/PROS\s0 regions. For simple regions and simple boolean +algebra between regions, there should be no difference between the two +implementations. The following is a list of differences and +incompatibilities between the two: +.IP "\(bu" 4 +If a pixel is covered by two different regions expressions, +Funtools assigns the mask value of the \fBfirst\fR region that +contains that pixel. That is, successive regions \fBdo not\fR +overwrite previous regions in the mask, as was the case with the +original \s-1PROS\s0 regions. This means that one must define overlapping +regions in the reverse order in which they were defined in \s-1PROS\s0. If +region N is fully contained within region M, then N should be defined +\&\fBbefore\fR M, or else it will be \*(L"covered up\*(R" by the latter. This +change is necessitated by the use of optimized filter compilation, i.e., +Funtools only tests individual regions until a proper match is made. +.IP "\(bu" 4 +The \fB\s-1PANDA\s0\fR region has replaced the old \s-1PROS\s0 syntax in which +a \fB\s-1PIE\s0\fR accelerator was combined with an \fB\s-1ANNULUS\s0\fR accelerator +using \fB\s-1AND\s0\fR. That is, +.Sp +.Vb 1 +\& ANNULUS(20,20,0,15,n=4) & PIE(20,20,0,360,n=3) +.Ve +.Sp +has been replaced by: +.Sp +.Vb 1 +\& PANDA(20,20,0,360,3,0,15,4) +.Ve +.Sp +The \s-1PROS\s0 syntax was inconsistent with the meaning of the \fB\s-1AND\s0\fR operator. +.IP "\(bu" 4 +The meaning of pure numbers (i.e., without format specifiers) in +regions has been clarified, as has the syntax for specifying coordinate +systems. See the general discussion on +Spatial Region Filtering +for more information. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +See funtools(7) for a list of Funtools help pages |