farmostDot

$canvaseditor farmostDot …: nreturns dotObj farmost to pointer, preferring constraint gravity.
$canvaseditor nearestDot -gravity yes: returns dotObj farmost to pointer, preferred constraint gravity
$canvaseditor farmostDot -dir x: returns dotObj horizontally farmost to pointer
$canvaseditor farmostDot -dir y: returns dotObj vertically farmost to pointer
$canvaseditor farmostDot -without list: returns dotObj except in list farmost to pointer

obj method canvaseditor farmostDot args {
  $self nearestDot -far {*}$args
}