Create Instances of linked Revit model on specified locations

Revit
7

The problem is simply you are rotating the linked element using the revitLinkTypeId
You need to use the placed instance id

Simply change the following :
From
ElementTransformUtils.RotateElement(doc,uLink.Id,axis,math.pi)

To
ElementTransformUtils.RotateElement(doc,newInstance.Id,axis,math.pi)

Also you need to use the X and Y and Z from the converted XYZ, not from the location input
So change the following too :
From
axis = Line.CreateBound(xyz, XYZ(location.X,location.Y,location.Z +1))

To
axis = Line.CreateBound(xyz, XYZ(xyz.X,xyz.Y,xyz.Z +1))

As for multiple inputs of locations and rotations :

doc = DocumentManager.Instance.CurrentDBDocument
link = IN[0]
location = IN[1]
rotations = IN[2]
uLink = UnwrapElement(link)
id=uLink.Id
xyz = []
result = []

for e in location:
	xyz.append(e.ToXyz())
	
TransactionManager.Instance.EnsureInTransaction(doc)


for eachpoint in xyz:
	newInstance = RevitLinkInstance.Create(doc,id,ImportPlacement.Origin)
	loc = newInstance.Location
	new2 = loc.Move(eachpoint)
	result.append(newInstance)
	instanceid = newInstance.Id
	axis = Line.CreateBound(eachpoint, XYZ(eachpoint.X,eachpoint.Y,eachpoint.Z +1))
	ElementTransformUtils.RotateElement(doc,instanceid,axis,rotations[xyz.index(eachpoint)]*math.pi/180)

TransactionManager.Instance.TransactionTaskDone()

OUT = result

Links
Links.PNG1920×1030 301 KB

Hope that help

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