[Closed] How to get position from spline vertex by maxscript

[quote=]getKnotSelection <shape> <spline_index_integer>
Returns the indices of the selected knots in the specified shape spline as an array of integers.

shp = -- your spline shape
selectedKnots = #()
for i=1 to numsplines shp do
(
   for j in getKnotSelection shp i do append selectedKnots #( i, j, getKnotPoint shp i j )
)

thank you for you quick reply , i try many ways but it not work

(
delete objects
shp = SplineShape()

-- Create splineshape
for i=1 to 5 do (
    
    addNewSpline shp    
    for j=1 to 5 do addKnot shp i #corner #line ([i*50 + random -10 10, j*25 + random 0 25, 0])
        
)
updateShape shp


-- Select random knots
for i=1 to numSplines shp do (
    
    sel = #()    
    for j=1 to numKnots shp i where random 0.0 1.0 > 0.5 do append sel j
    setKnotSelection shp i sel
    
)

select shp
selectedKnots = #()
for i=1 to numsplines shp do
(
   for j in getKnotSelection shp i do (append selectedKnots #( i, j, getKnotPoint shp i j ))
)

for s in selectedKnots do format "spline index:% knot index:% knot position:%
" s[1] s[2] s[3]
subobjectlevel = 1

)

Oh my god , i can do it , thank you very much
Best regard