Script to perform: Edge Ring > All edges to the same lengh

walter

Hello !

All in the title,
do you know a script that perform this operation:
I do a Edge Ring > Transform the lengh of the edges to have all the same length.




Indifferently in Max or Maya.

Thanks !

Swordslayer

There might already be one, anyway I've cobbled up a quick maxscript (won't work as expected if there are any shared verts, obviously):

struct edgeVec
(
    obj, pts, pos, vec,

    fn setEdge len =
    (
        polyOp.setVert obj pts[1] (pos - len * vec)
        polyOp.setVert obj pts[2] (pos + len * vec)
    )
)

fn averageEdgeLengths obj =
(
    local edges = polyOp.getEdgeSelection obj
    local verts = polyOp.getVertsUsingEdge obj edges
    local totalLength = 0

    local edgeVecs = for e in edges collect
    (
        local verts = polyOp.getEdgeVerts obj e
        local v1 = polyOp.getVert obj verts[1]
        local v2 = polyOp.getVert obj verts[2]
        local vec = v2 - v1

        totalLength += length vec
        edgeVec obj:obj pts:verts pos:(v1 + vec/2) vec:(normalize vec)
    )
    local len = totalLength / edges.numberSet / 2
    
    for e in edgeVecs do e.setEdge len
)

if isKindOf selection[1] Editable_Poly do
    averageEdgeLengths selection[1]

miauu

walter wrote: »

Hello !

All in the title,
do you know a script that perform this operation:
I do a Edge Ring > Transform the lengh of the edges to have all the same length.

Indifferently in Max or Maya.

Thanks !

I have made Set Edge Length a whyle ago - watch[ame="http://www.youtube.com/watch?v=d9aSsBe6PV4"] this video[/ame].
I have to update it when I have spare time.

Swordslayer

and in case you wanted it for maya too:

import maya.cmds as cmds
from pymel.core.datatypes import Vector

class edgeVec:
    def __init__(self, pts, pos, vec):
        self.pts, self.pos, self.vec = pts, pos, vec

    def setEdge(self, length):
        move = lambda vert, pos: cmds.move(pos[0], pos[1], pos[2], vert, ws=True, a=True)
        move(self.pts[0], self.pos - length * self.vec)
        move(self.pts[1], self.pos + length * self.vec)

def getEdgeVerts(edge):
    return cmds.ls(cmds.polyListComponentConversion(edge, toVertex=True), flatten=True)

def getEdgeVertsPos(edge):
    verts = cmds.xform(edge, query=True, translation=True, ws=True)
    return (Vector(verts[0:3]), Vector(verts[3:6]))

def averageEdgeLengths():
    edges = cmds.filterExpand(expand=1, selectionMask=32)
    totalLength = 0.
    edgeVecs = []

    for e in edges:
        verts = getEdgeVerts(e)
        v1, v2 = getEdgeVertsPos(e)
        vec = v2 - v1
        length = vec.length()

        totalLength += length
        edgeVecs.append(edgeVec(verts, v1 + vec/2, vec/length))

    length = totalLength / len(edges) / 2

    for e in edgeVecs:
        e.setEdge(length)

averageEdgeLengths()

walter

Thanks Swordslayer and Miauu for your precious help and your promptness !

Swordslayer:
The 3dsMax and Maya Script work like a charme.

Miauu:
I take a look to your scripts pack, the ability to setup a lenght greatly interested me.

To me the perfect stitching and strap from my retopo !