Python API - Regular Locator Nodes are incorrectly assumed to be Bundles

[david-cattermole]

Problem

Using mmSolver.api.get_object_type() on a regular Maya locator node will return mmSolver.api.OBJECT_TYPE_BUNDLE.

Inside the maya.cmds.mmSolver command, Bundles are no different from any other transform node.
There is currently almost no difference between a locator and a Bundle, other than the icon (which is only cosmetic).
No special Bundle shape has been currently implemented.

This is a similar problem to #6.

Expected behavior:

tfm_node= maya.cmds.createNode('transform')
shp_node = maya.cmds.createNode('locator', parent=tfm_node)
obj_type = mmSolver.api.get_object_type(tfm_node)
assert obj_type == mmSolver.api.OBJECT_TYPE_UNKNOWN

bnd = mmSolver.api.Bundle.create_node()
bnd_node = bnd.get_node()
obj_type = mmSolver.api.get_object_type(bnd_node)
assert obj_type == mmSolver.api.OBJECT_TYPE_BUNDLE

Actual behavior:
Currently, a transform with a locator shape node will be detected as a bundle.

Like so:

tfm_node= maya.cmds.createNode('transform')
shp_node = maya.cmds.createNode('locator', parent=tfm_node)
obj_type = mmSolver.api.get_object_type(tfm_node)
assert obj_type == mmSolver.api.OBJECT_TYPE_BUNDLE

Software Versions

• mmSolver version: All versions.
• Maya version: All versions.
• Operating System (OS): All versions.

[david-cattermole]

This is now fixed in bbac84e, and committed to the develop branch ready for next release.

A bundle is now defined as being only able to move in Translate X, Y and Z, with all other transform values (Rotate, Scale and Skew) being locked and non-keyable. If this does not hold, then it's not a bundle.