This snippet can be used to align vector in world space to a current view. This could be used for something like Align To View in MODO locator shape properties. We could potentially draw a shape that is always facing view.

alignToView.py

import lx
import lxu
import modo

scene = modo.Scene()
i = scene.item('Locator')

# Get current MODO viewport interface
vs = lx.service.View3Dport()
currentViewIndex = vs.Current()
view = lx.object.View3D(vs.View(currentViewIndex))

# Get viewport matrix as modo.Matrix3

# This gets matrix as 3 tuples.
# 0 argument value means we want view matrix, 1 would get inverted view matrix
viewMtxTuple = view.Matrix(0)
# Convert the tuple into modo.Matrix3 object.
viewMtx = modo.Matrix3()
viewMtx.set(viewMtxTuple)

# Transform world space vector by view matrix
# So it stays aligned with the view
mat4 = modo.Matrix4(viewMtx)
pos = modo.Vector3(1.0, 0.0, 0.0)
pos.mulByMatrixAsPoint(mat4)

# This just applies calculated vector as item position to see the result
l = modo.LocatorSuperType(i.internalItem)
l.position.set(pos.values)