The constraint function for when constraint is set to "x" or "y"
The highest possible X value
The lowest possible X value
The highest possible Y value
The lowest possible Y value
End updates (Xm, Ym) for m
The end of the line segment (X)
The end of the line segment (Y)
The snap resolution when constraint is set to "snap"
Start updates (Xn, Yn) for n
The start of the line segment (X)
The start of the line segment (Y)
How to constrain this line? options "none", "snap", "x", "y"