input,s,al,"",,,	"input image"
table,s,al,"",,,	"table with line data"
xcol,s,h,"c1",,,	"column name for x position data"
ycol,s,h,"c2",,,	"column name for y position data"
setcol,s,h,"c4",,,	"column name for line set data"
angle,r,h,INDEF,,,	"measured angle (degrees) "
sdangle,r,h,INDEF,,,	"standard deviation of the angle measured"
mode,s,h,"al"