palate 0.3.9

File type detection combining tft and hyperpolyglot
Documentation 
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-- Taken from an example from Autodesk's MAXScript reference:
-- http://help.autodesk.com/view/3DSMAX/2016/ENU/?guid=__files_GUID_0876DF46_FAA3_4131_838D_5739A67FF2C1_htm

macroscript FreeSpline category:"HowTo" tooltip:"FreeSpline" (
local old_pos
local new_spline
local second_knot_set

fn get_mouse_pos pen_pos old_pen_pos = (
	if old_pos == undefined then old_pos = old_pen_pos
	if distance pen_pos old_pos > 10 then
	(
		if second_knot_set then
			addKnot new_spline 1 #smooth #curve pen_pos
		else
		(
			setKnotPoint new_spline 1 2 pen_pos
			second_knot_set = true
		)
		old_pos = pen_pos
		updateShape new_spline
	)-- end if
)-- end fn

fn draw_new_line old_pen_pos = (
	pickPoint mouseMoveCallback:#(get_mouse_pos,old_pen_pos)
)

undo"Free Spline"on(
	new_spline = splineShape ()
	old_pen_pos = pickPoint ()
	
	if old_pen_pos == #RightClick then
		delete new_spline
	else
	(
		select new_spline
		new_spline.pos = old_pen_pos
		addNewSpline new_spline
		addKnot new_spline 1 #smooth #curve old_pen_pos
		addKnot new_spline 1 #smooth #curve old_pen_pos
		second_knot_set = false
		draw_new_line old_pen_pos
		q = querybox "Close Spline?" title:"Free Spline"
		if q then
		(
			close new_spline 1
			updateshape new_spline
		)
		select new_spline
	)--end else
)--end undo
)--end script