Hi everyone,
I’m currently working on a script, where each vertex of a selected object are running in a for loop to calculate their Normal vector. I would like to get the surrounding vertex to calculate the distance between the vertex of the loop and the surrounding ( it’s the easiest way i found to get the polygon density locally).
Here is a piece of the script :
-- xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
objetSourcePoly = $
objetSource = snapshotasmesh$
model = #($Brush_01,$Brush_02,$Brush_03,$Brush_04)
for vertIndex = 1 to objetSource.numverts do
(
vertFaces = meshop.getFacesUsingVert objetSource vertIndex
vertNorm = point3 0 0 0
for face = 1 to vertFaces.count do
(
if vertFaces[face] then
(
faceNormal = getFaceNormal objetSource face
vertNorm = vertNorm + faceNormal
)
vertNorm = normalize vertNorm
)
r = random 1 (model.count)
localModel = instance model[r]
localModel.dir = vertNorm
in coordsys local rotate localModel (angleaxis -90 [0,1,0])
localModel.pos = getVert objetSource vertIndex
-- I need to select the vertex "vertIndex" in the Poly object
VertPoly = polyop.setVertSelection objetSourcePoly vertIndex
objetSourcePoly.EditablePoly.SetSelection #Vertex #{vertIndex}
-- Then grow the selection
VertAround = objetSourcePoly.EditablePoly.GrowSelection ()
-- Finaly delete from selection the "VertIndex" to get only the surrounding vertex
AroundVertPoly = AroundVertPoly - VertPoly
-- After that i need a for loop for each surrounding vertex to calculate distance between each of them and the "vertIndex"
)
I hope you’ll be able to help me, i think i just missed an easy part to call the Grow button in the command panel, or an other function
Thank you
I found an other way to do it, slower but it works
vertDistanceArray = #() --create an empty array for distance
for i = 1 to objetSource.numVerts do
(
vertDistanceArray[i] = distance (getVert objetSource i) (getVert objetSource vertIndex)
)
--till here, the distance of all the vertices has been stored in the array.
vertDistanceArray = sort vertDistanceArray
-- Calculate the medium lenght
VertDistance = vertDistanceArray[2] + vertDistanceArray[3] + vertDistanceArray[4] + vertDistanceArray[5] + vertDistanceArray[6]
VertMoy = VertDistance / 5
everything is much easier… because you already have a snapshot mesh (i will call it mesh in my sample) the neighbors of a vertex (v) are:
by edges:
(meshop.getvertsusingedge mesh (meshop.getedgesusingvert mesh v)) - #{v}
by faces:
(meshop.getvertsusingface mesh (meshop.getfacesusingvert mesh v)) - #{v}
ps. polyop.getfacenormal is much faster then getfacenormal (mesh method)
btw… who can show the fastest way how to get all neighbors of every mesh vertex?
Thank you, i was sure there was an other way to write it faster. Testing it
