Simple maya instancer example

MayaInstancerExample.py

import maya.cmds as cmds

pCone = cmds.polyCone()[0]
pCube = cmds.polyCube()[0]
pTorus = cmds.polyTorus()[0]
cmds.hide(all=True)

positionArray = [[0, 0, 0], [2, 0, 0], [5, 0, 0]]
rotationArray = [[45, 0, 0], [0, 45, 0], [0, 0, 45]]
scaleArray = [[2, 1, 1], [1, 2, 1], [1, 1, 2]]
objectIdArray = [1, 1, 2]

particle = cmds.particle(position=positionArray)
# print(particle)  # ['nParticle1', 'nParticleShape1']

# It should have a suffix "0", otherwise it would lost data when you move timeline
# cmds.addAttr(particle[1], longName='rotationPP', dataType='vectorArray')
cmds.addAttr(particle[1], longName='rotationPP0', dataType='vectorArray')
# cmds.addAttr(particle[1], longName='scalePP', dataType='vectorArray')
cmds.addAttr(particle[1], longName='scalePP0', dataType='vectorArray')
# cmds.addAttr(particle[1], longName='objectIdPP', dataType='Int32Array')
cmds.addAttr(particle[1], longName='objectIdPP0', dataType='Int32Array')

# cmds.setAttr(particle[1] + '.rotationPP', len(rotationArray), *rotationArray, type='vectorArray')
cmds.setAttr(particle[1] + '.rotationPP0', len(rotationArray), *rotationArray, type='vectorArray')
# cmds.setAttr(particle[1] + '.scalePP', len(scaleArray), *scaleArray, type='vectorArray')
cmds.setAttr(particle[1] + '.scalePP0', len(scaleArray), *scaleArray, type='vectorArray')
# cmds.setAttr(particle[1] + '.objectIdPP', objectIdArray, type='Int32Array')
cmds.setAttr(particle[1] + '.objectIdPP0', objectIdArray, type='Int32Array')


particleInstancer = cmds.particleInstancer(
    particle[1],
    addObject=True,
    object=[
        pCone,
        pCube,
        pTorus
    ],

    rotation='rotationPP0',
    scale='scalePP0',
    objectIndex='objectIdPP0',
    
    levelOfDetail='geometry',
    rotationUnits='Degrees',
    rotationOrder='XYZ',
    position='worldPosition',

    cycle='None', 
    cycleStep=1, 
    cycleStepUnits='Frames',
)