skeleton.py 文件源码

def __init__(self, ob ):
        if ob.location.x != 0 or ob.location.y != 0 or ob.location.z != 0:
            Report.warnings.append('ERROR: Mesh (%s): is offset from Armature - zero transform is required' %ob.name)
        if ob.scale.x != 1 or ob.scale.y != 1 or ob.scale.z != 1:
            Report.warnings.append('ERROR: Mesh (%s): has been scaled - scale(1,1,1) is required' %ob.name)

        self.object = ob
        self.bones = []
        mats = {}
        self.arm = arm = findArmature( ob )
        arm.hide = False
        self._restore_layers = list(arm.layers)
        #arm.layers = [True]*20      # can not have anything hidden - REQUIRED?

        for pbone in arm.pose.bones:
            mybone = Bone( arm.data.bones[pbone.name], pbone, self )
            self.bones.append( mybone )

        if arm.name not in Report.armatures:
            Report.armatures.append( arm.name )

        ## bad idea - allowing rotation of armature, means vertices must also be rotated,
        ## also a bug with applying the rotation, the Z rotation is lost
        #x,y,z = arm.matrix_local.copy().inverted().to_euler()
        #e = mathutils.Euler( (x,z,y) )
        #self.object_space_transformation = e.to_matrix().to_4x4()
        x,y,z = arm.matrix_local.to_euler()
        if x != 0 or y != 0 or z != 0:
            Report.warnings.append('ERROR: Armature: %s is rotated - (rotation is ignored)' %arm.name)

        ## setup bones for Ogre format ##
        for b in self.bones:
            b.rebuild_tree()
        ## walk bones, convert them ##
        self.roots = []
        ep = 0.0001
        for b in self.bones:
            if not b.parent:
                b.compute_rest()
                loc,rot,scl = b.ogre_rest_matrix.decompose()
                #if loc.x or loc.y or loc.z:
                #    Report.warnings.append('ERROR: root bone has non-zero transform (location offset)')
                #if rot.w > ep or rot.x > ep or rot.y > ep or rot.z < 1.0-ep:
                #    Report.warnings.append('ERROR: root bone has non-zero transform (rotation offset)')
                self.roots.append( b )