get coordinates of each vertex on plane

[HalfVector]

Hi.

This function will return an array with the world-space vertex positions for the object "obj".

fn getVertexPositions obj = (
local vPositions = #()
local triMesh = snapshotAsMesh obj
for v = 1 to triMesh.numVerts do (
append vPositions (getVert triMesh v)
)
delete triMesh
return vPositions
)

Did you mean that?

[cgforliving]

Looks like it, but I am not able to run this; it gives a runtime error "snapshotAsMesh requires a node".
Thanks for the quick reply

[Light]

Try getVertexPositions $




Light

[cgforliving]

If I try
getVertexPositions $Plane01
it Works!
(Plane01 is the name of the object in my scene.)


But
when I try
getVertexPositions ($+objName)
OR
$objname
Doesn't Work!
(obName is the name of object in my script)


Any help on this.

[jonlauf]

if you mean you assigned a variable objname to the object in your scene like this:

objname = $Plane01

then you call the function with just the variable name as the argument like this:

getVertexPositions objname

[cgforliving]

Thats what I tried for the first time
Did not work

[jonlauf]

I have one object in my scene named "Plane01" and this works fine for me:


fn getVertexPositions obj = (
local vPositions = #()
local triMesh = snapshotAsMesh obj
for v = 1 to triMesh.numVerts do (
append vPositions (getVert triMesh v)
)
delete triMesh
return vPositions
)

objname = $Plane01
getVertexPositions objname

What are you doing differently?

[cgforliving]

Say I have a list of object names in an array; Plane01, Plane02 etc
This way I do not have "$" in front. I tried adding that to the name and it still gives problems.

fn getVertexPositions obj = (
::::::::::::
::::::::::::
)

newName = "$"+objName
getVertexPositions newName

[HalfVector]

newName = "$"+objName
getVertexPositions newName
No, the function expect a node not a string. So if you have the name of the node (Plane01, Plane02, etc) do:

obj = getNodeByName objName
getVertexPositions obj

[cgforliving]

Thank you for your reply

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