Maxscript needed?

[casewolf]

Hi Forum,

I currently encountered an interesting problem about selectioning specific objects in a scene (Max 6).
For example:
I have a scene where (for import reasons) a large number of primitive cylinders exist. All those cylinders share the same parameters (even materials) except one detail: A part of them is of a different radius then the others.
As I want to delete those thicker ones and it makes no sense selecting them one by one (10.000 objects) I would need a selection filter that points those thicker cylinders out (the thickness is always the same among those thicker ones).

I wonder if anybody encountered similar situations and what solution would be the best.

Thanks in advance,

Daniel

[plastic_]

--select all objects to filter out

x=10
--radius to trigger

filteredobjects=#()

for i in selection do
(
try (
if i.radius >= x then append filteredobjects i
)
catch()
)

clearSelection()
for i in filteredobjects do selectMore i

--filtered objects should remain selected now

[Sushidelic]

Hi,

as you're talking about imported geometry, i doubt they still have a radius property, so you might try it with absolute values

first, select one of the big cylinders and type

$.max - $.min

into the script command line. You'll get something like f.ex.[63.5234,63.5234,150.222]
The first value is the diameter, so if you want to select all cylinders bigger than a certain diameter threshold, you got to edit that value in the script. For sure you can measure out that value as well.
Then select all cylinders and go.

bigones = #()
diameter = 60 --parameter to edit

for i in selection do
(
a = i.max - i.min
if a.x > diameter
then append bigones i
else()
)
select bigones

Hope this helps,
Michael


edit: for sure, the first value is only the diameter if the cylinders are straight up - else you gotta choose the appropriate one. When they're all rather randomly rotated, my script won't work as it only checks the bounding box in worldspace.

[casewolf]

Thanks guys,

I'll try that out.

@sushidelic:

Even imported they remain primitive cylinders, as they are vrml objects and 3dsmax knows to translate them to own native cylindres.