Adjust Cell Origin using the Python API

rima

How can I adjust the cell origin using the Python API? I couldn't find any method in the Cell class documentation taking care of this.
In the GUI, it is done using Edit/Cell/Adjust Origin (see the screenshot below):

andyL

Hello Rima,
I use the following procedure inside Klayout:

import pya    
layout = pya.Application.instance().main_window().current_view().active_cellview().layout()

def adjustOrigin(layoutB,topcell):
          bbox= topcell.bbox()
          trans = pya.Trans.new(-bbox.center())  # center point
        #  trans = db.Trans(db.Point((-bbox.left), (-bbox.bottom))) #Lower Left Corner
          for inst in layoutB.top_cell().each_inst():
              layoutB.top_cell().transform(inst,trans)
          for li in layoutB.layer_indices():
            for shape in layoutB.top_cell().each_shape(li):
              layoutB.top_cell().shapes(li).transform(shape,trans)

          layoutB.update()
          return(layoutB)

layout = adjustOrigin(layout,layout.top_cell())

Matthias

@andyL Thanks for sharing your code

Since 0.26.7, KLayout has a method which should simplify that code:

layoutB.top_cell().transform(trans)

should do the job of the instance and shape loops.

Matthias

rima

Great! Thank you very much for your answers!