XMM-Newton Science Analysis System


convregion (convregion-0.12.2) [22.0.0-9173c7d25-20250127]

Algorithm

Read parameters: 
 If mode=3 (command line)
  Read params RA/Dec/Inimage/shape
   if shape=ellipse, read semimajor/semiminor/rotang
   if shape=circle, read radius
 else if mode=2 (ASCII file)
  Read params Inimage/Inregion
  Open ASCII file Inregion
  Read rest of parameters from Inregion
  Open Outregion ASCII file
 else if mode=3 (FITS file)
  Read params Inimage/Inregion
  Open FITS file Inregion
  Read rest of parameters from Inregion
  Open Outregion FITS file (clone of Inregion)
 endif
 do i=1,numberOfRegions
  if (mode=1) call ecoordconv to convert X/Y to Ra/Dec
  call esky2det
  read esky2det output temp file, returning detx/dety
  calculate new: Detx/Dety/Radius/Rotang as necessary
  write SHAPE/DETX/DETY/RADIUS/ROTANG/MAJOR/MINOR as necessary
  [write to screen for all, ASCII if mode=2, FITS if mode=1]
 end do
 if mode=2, close ASCII file
 if mode=1, close FITS file
End