[Tutor] Importing an existing plot and manipulating it !

[ram rokr]

Hello people,
                I'm a beginner with Python and I'm new to the mailing list.
It's nice to know that there is a mailing list with people/tutors who can
help me learn Python.
                So, my difficulty now is that, I already have a script that
plots a polygon. But now I'm trying to script a Python class that would
enable me to import parameters(or the plot itself) from the previous script
and control it too (like specifying parameters: spacing, width, height or
the like).

My approach was to create a new layout and try to import the existing plot
and then try to manipulate it:

import math

import numpy as np


import pya


ly = pya.Layout("L10")


# create the top cell

top_cell = ly.create_cell("TOP")


# finding the PCell declaration object ...

class
Dec:
# locating the earlier script to get the parameters for the polygon

def __init__(self):

self.lib = pya.Library.library_by_name("MyLib")                        #
PCell is a file that contains the polygon with all the parameters of
interesrt.

if self.lib == None:

raise Exception("Unknown lib 'MyLib'")
#I'm trying to get parameters from this file/plot to make more.

self.pcell_decl = lib.layout().pcell_declaration("CanaryCell");

if pcell_decl == None:

raise Exception("Unknown PCell 'CanaryCell'")


# instantiating that cell ...

Dec()

# transformation

class Position:

def __init__(self, xpos, ypos, t):

self.xpos = 0

self.ypos = 0

self.t = pya.Trans(pya.Trans.r0(), -1000 + xpos, -1000 + ypos)


# insert into "top_cell" (must be provided by the caller)

class top_cell (Dec, Position):

def __init__(self, insert, pcell_inst):

top_cell = pya.CellView.active().cell

self.a = pya.Point(x1,0)

self.b = pya.Point(0,y1)

self.na = 5

self.nb = 7

pcell_inst = top_cell.insert(pya.CellInstArray(pcell_decl, t, a, b, na, nb))


Position(xpos, ypos, t)

top_cell(insert, pcell_inst)


# write the layout

ly.write("done.gds")

How could you advise me to aprroach this problem accomplish this? I've time
constrains and that's a big problem ! Thanks.


P.S: Yes, the script looks weird. Because I've to use Klayout with python
integration. Since I'm new to both I'm having a hard time. If somebody can
enlighten me about how to do this in Python, maybe I can comprehend and
work it out with KLayout.



Regards,

Ram.
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