MXS: Layermanager

[istan]

Can anyone explain to me, how to select all nodes from layer?

The example in the help does not enlighten me.. What is "refs.dependents" ?

https://help.autodesk.com/view/MAXDEV/2021/ENU/?guid=GUID-79537E16-FE25-4567-BEA6-06F39E0A5C1F 

for i = 0 to layerManager.count-1 do
(
  ilayer = layerManager.getLayer i
  layerName = ilayer.name
  layer = ILayerManager.getLayerObject i
  layerNodes = refs.dependents layer
  format "Layer: %; nodes: %\n" layerName layerNodes
)

[istan · Accepted solution]

answered by myself..

layer.select true
delete $

was it..

[miauuuu]

Why this not works?

(
	layer = layermanager.getLayerFromName "Layer002"
	thisLayerObjsArr = #()
	layer.nodes &thisLayerObjsArr
	
	delete thisLayerObjsArr
-- 	select thisLayerObjsArr
)

[istan]

ok.

But it still did not answer, what the code from the doc shall do:

layerNodes = refs.dependents layer

[denisT.MaxDoctor]

as you know the latest versions of MAX allow nested layers. So the above methods are actually not entirely correct. There are no built-in methods to get ALL the nodes of a layer, including from nested layers. So, we have to recurse to get them all ... something like:

fn getLayerNodes layer list: recurse:on = 
(
	layer.nodes &nn
	join list nn
	if recurse do for k=1 to layer.getNumChildren() do 
	(
		getLayerNodes (layer.getChild k) list:list recurse:on
	)

	list
)

a = layermanager.getLayer <k> 
nn = getLayerNodes a list:#()

---

@istan wrote:

ok.

But it still did not answer, what the code from the doc shall do:

layerNodes = refs.dependents layer

---

This does not work if the "layer" value is interface. You must use its reference target (BaseLayer object) to get dependents. These dependent items include immediate nodes (not nested) and some other dependent reference targets that can be different.

refs.dependentnodes might give you right list of immediate nodes, not it's not exactly correct in general

[istan]

Hi Denis,

layer hierarchy was clear - and the rest now as well. Thx.

How about the other task we were talking about ? When "we" will find time ? 😉

Istan