"""
while these techniques are not OOP they are still fully valid ways to
perform these operations - Pymel is object oriented but is slower to
execute (wrapper on wrapper on wrapper on wrapper) I am not a hater of
pymel (i prefer OOP coding but autodesk didnt implement it that way 8( )
but my code always comes down to speed and stability rather than just being
concerned with it being easy to write and access as I write it. why i use a
good python IDE ;)
"""
cmds.createNode('transform') - does not have a shape node
cmds.createNode('locator') - returns shapeNode only
#create a locator
loc = cmds.spaceLocator()[0]
locShape = cmds.listRelatives(loc, s=True)[0]
api 2.0 is showing great promise but is still missing a lot and the 2 api's
dont play nice, spending a lot of code to convert information but it has
huge speed increases.
On Thu, Dec 19, 2013 at 1:06 PM, Jeremy YeoKhoo <[email protected]> wrote:
> Hey Eric,
>
> Hows it going?
>
> It really depends on what you need. Using OpenMaya (or python for that
> matter) doesnt necessarily make things faster in maya. It really depends on
> whether youre trying to make a plugin or youre executing a command. Using
> OpenMaya with with python uses a wrapper (SWIG) anyway, but there is a new
> python API 2.0, but Im not sure how much faster it is but its better in
> with the implementation of python's syntax.
>
> If youre trying to get the shape node after creating a transform, then I
> would do....
>
> import maya.cmds as cmds
>
> myLoc= cmds.spaceLocator('')[0]
> myLocShape= cmds.listRelatives(myLoc, s=1)[0]
>
>
> But if youre creating a plugin or your own custom locator with a
> shape(that does something) then you have to use
>
> import maya.OpenMayaMPx as OpenMayaMPx
>
> class myClass(OpenMayaMPx.MPxLocatorNode):
> def __init__(OpenMayaMPx.MPxLocatorNode.__init__, self):
>
> And etc..............
>
> Write that plugin so it returns a shape node and then execute your command
> that created the plugin and node... And away you go, but I reckon thats not
> what you want to achieve.
>
> -Jeremy
>
>
> On Thursday, 19 December 2013 05:34:33 UTC+11, Eric Thivierge wrote:
>>
>> Hey all,
>>
>> Been lurking here for a long time but just now picking up some Maya
>> programming for some rigging tools here at work. I've been a long time
>> Softimage user and am used to the OM they have there so it's a bit of an
>> uphill battle trying to make heads or tails of some of the stuff in
>> OpenMaya.
>>
>> Is this the simplest way to get to the shape node after it's created from
>> the transform node?
>>
>> # Sample Python
>> import maya.OpenMaya as om
>>
>> dagModifier = om.MDagModifier()
>>
>> locator = dagModifier.createNode('transform')
>> dagModifier.renameNode(locator, "myLocator")
>> dagModifier.createNode('locator', locator) # create locator shape under
>> transform
>> dagModifier.doIt()
>>
>> locatorDagPath = om.MDagPath()
>> locatorDag = om.MFnDagNode(locator)
>> locatorDag.getPath(locatorDagPath)
>> locatorDagPath.extendToShape()
>>
>> shapeDag = om.MFnDagNode()
>> shapeDag.setObject(locatorDagPath.node())
>> shapeNode = om.MObject()
>> shapeNode = locatorDagPath.node()
>>
>> dagModifier.renameNode(shapeNode, "myLocatorShape")
>> dagModifier.doIt()
>>
>> --------------------------------------------
>> Eric Thivierge
>> http://www.ethivierge.com
>>
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