[Closed] SetSelection with Edit_Poly Modifier

And can’t seem to set Material IDs with an Edit Poly Modifier either…

I don’t particularily want to collapse the stack…

this one took me a while it’s this

theSelectedFaces = ($.Edit_Poly.getSelection #Face) as array

will return the numbers of the selected faces in an edit_poly modifier.

-Colin

Delving into what I was getting at a bit further in the maxscript reference you will find “Edit_Poly.Select”

convert your regular array #(1,4,6) to a bitarray with a for loop

 arr = #(1,4,6)
 bitarr = #{}
 
 for i=1 to arr.count do bitarr[(arr[i])] = true 
 -- bitarr now holds the bitarray of the faces you want to select, pass this to the below command
 
 $.Edit_Poly.Select #Face bitarr
 

yes?

it appears to be waiting for another argument… press escape to get interupted

This even happens with just

$.editpoly.setSelection #face #{1}

Seems to work for me except for the “node:selection[1]” part. Max (2009, SP1) complains with:

-- Error occurred in anonymous codeblock; filename: none; position: 0
--  Frame:
-- Argument count error: GetSelection wanted 1, got 1

If I remove that part, it ends up selecting the first face in the selected faces array. It does throw an error if I didn’t have anything selected initially, of course.

Right just to make clear…

I’m using 3dsmax 9 32bit, no sp.

I’ve got a plane, some polys selected.

A greeble modifier which selects some faces.

and then an Edit_Poly on top.

The edit_poly on top is what I want to edit.

 theObject = modPanel.getCurrentObject()
  thePolys = ( theObject.GetSelection #Face node:selection[1]) as array
 
	for i = 1 to thePolys.count do
	(
	theObject.SetSelection #Face #{thePolys[i]} 
	
	--setmaterialID to 10
	theObject.MaterialIDtoSet = 10 
	)

I’ve striped all my other code out so i’m just trying to get this to work…

You can cut that down by using something as

#(1,5,10,11,12,13) as bitArray
--and vice versa
#{1..3, 5..7, 9, 11} as Array

Doesn’t work here either…usinjg 2008.

But as I said before even a simple

$.modifiers[#Edit_Poly].setSelection #face #{1}

doesn’t work. Whatever the number in the bitarray it always returns true, even if that number is higher than face count. It also still says interrupted if escape is pressed, which suggests to me that it’s missing an argument or something?