diff options
Diffstat (limited to 'sys/mwcs/mwswsampr.x')
| -rw-r--r-- | sys/mwcs/mwswsampr.x | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sys/mwcs/mwswsampr.x b/sys/mwcs/mwswsampr.x new file mode 100644 index 00000000..3fcf3f70 --- /dev/null +++ b/sys/mwcs/mwswsampr.x @@ -0,0 +1,36 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +include <syserr.h> +include "mwcs.h" + +# MW_SWSAMPR -- Set the sampled WCS curve for an axis. + +procedure mw_swsampr (mw, axis, pv, wv, npts) + +pointer mw #I pointer to MWCS descriptor +int axis #I axis which gets the wsamp vector +real pv[ARB] #I physical coordinates of points +real wv[ARB] #I world coordinates of points +int npts #I number of data point in curve + +pointer wp +int mw_allocd() +errchk syserrs, mw_allocd + +begin + # Get the current WCS. + wp = MI_WCS(mw) + if (wp == NULL) + call syserrs (SYS_MWNOWCS, "mw_swsampr") + + # Overwrite the current curve, if any, else allocate new storage. + if (WCS_PV(wp,axis) == NULL || WCS_NPTS(wp,axis) < npts) + WCS_PV(wp,axis) = mw_allocd (mw, npts) + call achtrd (pv, D(mw,WCS_PV(wp,axis)), npts) + + if (WCS_WV(wp,axis) == NULL || WCS_NPTS(wp,axis) < npts) + WCS_WV(wp,axis) = mw_allocd (mw, npts) + call achtrd (wv, D(mw,WCS_WV(wp,axis)), npts) + + WCS_NPTS(wp,axis) = npts +end |