TCL bindings for SLALIB

The following TCL verbs are defined:
  • afFitxy
  • afTrans
  • afTriMatch
  • dayFromTime
  • radFromHMS
  • radFromHMS
  • xFromxy
  • yFromxy
  • The following text can also be found with the command "help -facil=slalib -full".

    afFitxy

    Purpose: Fit a linear model to relate the two sets of points. Usage: afFitxy trans afxe afye afxm afym Arguments: (afxe,afye) are the expected positions of the points and (afxm,afym) are the measured positions of the points. The model returned in the TRANS structure transforms from the measured points to the expected points.

    afTrans

    Purpose: Use the trans to transform the (x,y) pairs in afxm and afym. The values in the AFs are transformed in the same AFs and the errors are set to zero. Usage: afTrans trans afxm afym

    afTriMatch

    Purpose: Fit a linear model to relate the two sets of points. Usage: afTriMatch afxe afye afxm afym -ne=0 -nm=0 -idb=0 Arguments: (afxe,afye) are the expected positions of the points and (afxm,afym) are the measured positions of the points. Use the first ne expected points and the first nm measured points. Use the default of 0 for ne to use all the expected points, and similarly for nm. The model returned in the TRANS structure transforms from the measured points to the expected points. You may want to sort by magnitude BEFORE making the AFs. Set idb to 1 to make a text file called triMatch.out with debugging information. The maximum number of points allowed is 50

    dayFromTime

    Purpose: Convert the hh:mm:sec string to days Usage: dayFromTime hh:mm:sec

    radFromDMS

    Purpose: Convert the dd:mm:sec string to radians Usage: radFromDMS dd:mm:sec

    radFromHMS

    Purpose: Convert the hh:mm:sec string to radians Usage: radFromHMS hh:mm:sec

    xFromxy

    Purpose: Return the x value for (x,y) transformed Usage: xFromxy trans xm ym

    yFromxy

    Purpose: Return the x value for (x,y) transformed Usage: yFromxy trans xm ym