20190227 Maya Line up Solve Group to Cam

20190227_lineupSolveGroupToCam_v001_01.py

from pymel.core import *


def lineup_cam_grp(solveGrp, targetCamXform, startFrame=993):
    '''
    This function takes a freshly imported solve and lines it up to an existing camera,
    matching position and rotation.
    
    These are the things that happens in the script
    - finds camera and cam shape in solve group
    - moves keyframes by 993 frames (by default) to the first frame of the seq
    - create a group aligned to the solved camera
    - parent the solve group into the new group
    - align the group to the targetCamXform
    - set near / far clip
    - set frame range to start frame
    '''
    camShape = listRelatives(solveGrp, ad=True, type='camera')
    if not camShape:
        print('no cameras found')
        return
    # gets the first camera found. one solve group usually only has a single camera
    camShape = camShape[0]
    camName = listRelatives(camShape, parent=True, type='transform')[0]
    animObjsList =  [camName, camShape]
    for thisObj in animObjsList:
        keyframe(thisObj, e=True, animation='keysOrObjects', option='over', 
                    relative=True, timeChange=startFrame)
    newGrp = group(name='{}_{}_grp'.format(solveGrp, camName), empty=True)
    parent(newGrp, camName)
    xform(newGrp, a=True, translation=[0,0,0], rotation=[0,0,0])
    parent(newGrp, None)
    parent(solveGrp, newGrp)
    myConstraint = parentConstraint(targetCamXform, newGrp, maintainOffset=False)
    delete(myConstraint)
    camShape.farClipPlane.set(50000)
    camShape.nearClipPlane.set(0.1)

    # loops through imageplanes
    [PyNode(imagePlane(x, q=True, camera=True)) for x in ls(type='imagePlane')]

    '''
    setAttr "|transform1|Camera01Plane.alphaGain" 0.468041;
    setAttr "|transform1|Camera01Plane.depth" 1;
    '''
    
    playbackOptions(min=startFrame, animationStartTime=startFrame)
    
# end lineup_cam_grp()

lineup_cam_grp(ls(sl=True)[0], ls(sl=True)[1], startFrame=993)