There is still 0.3.0 in gdsCAD/init.py.

I would like to set color independently as I am also using this package for drawing floorplan.

Floorplan will look good with different colors.

Example Code, suppose I want 20 blocks to be placed at different locations.
I am increasing layer by 1 for each block. I want colors of these layer set independently.

layer=layer+1
cell = core.Boundary(points,layer=layer)

Let me know how can I do it?

Greetings! I'm trying to use the flatten() method on a Cell but it's returning:
AttributeError: 'Cell' object has no attribute 'get_polygons'
Looks like this may have been incompletely ported from the gdspy codebase? Just curious if I'm missing something obvious!

Thanks so much for your time,
Graham

I'm trying to start the example script:

import os.path
from gdsCAD import *

# Create some things to draw:
amarks = templates.AlignmentMarks(('A', 'C'), (1,2))
text = shapes.Label('Hello\nworld!', 200, (0, 0))
box = shapes.Box((-500, -400), (1500, 400), 10, layer=2)

# Create a Cell to hold the objects
cell = core.Cell('EXAMPLE')
cell.add([text, box])
cell.add(amarks, origin=(-200, 0))
cell.add(amarks, origin=(1200, 0))

# Create two copies of the Cell
top = core.Cell('TOP')
cell_array = core.CellArray(cell, 1, 2, (0, 850))
top.add(cell_array)

# Add the copied cell to a Layout and save
layout = core.Layout('LIBRARY')
layout.add(top)
layout.save('output.gds')

layout.show()

And getting this error:

TypeError: ufunc 'add' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

Hi !

I have troubles installing.
Please see here: https://stackoverflow.com/questions/52736033/troubles-installing-gdscad

Thank you for any help !

Dear Hohlraum,
I encountered this issue when I trying to run the sample code.
Do you know what is the problem?
Thank you.

Matplotlib's autoscale does not take artists added by add_artist into account when calculating dataLim. f27da5b introduces an ugly hack to explicitly add text objects to the datalim. It more or less works for cells, but not for references that have been subjected to transformations.

For instance in the code below c.show() works as expected, but top.show() does not.

t1 = core.Text('one', (-10,0), layer=8)
t2 = core.Text('two', (0,5))
t3 = core.Text('three', (-20,5))
t4 = core.Text('four', (10,0))

c = core.Cell('cell')
c.add([t1, t2, t3, t4])

ref = core.CellReference(c, origin=(10,10))

top = core.Cell('top')
top.add(ref)

I cannot import my own gds. It seems to be some incompatibility with the record texttype. The traceback is:
Traceback (most recent call last):
File "gds_tests.py", line 9, in
amarks = core.GdsImport(myfile)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD/core.py", line 1968, in GdsImport
cell.add(create_element(**kwargs))
File "/usr/local/lib/python2.7/dist-packages/gdsCAD/core.py", line 2172, in _create_text
return Text(**kwargs)
TypeError: init() got an unexpected keyword argument 'texttype'

It appears that gdsImport as implemented in gdsCAD doesn't support reading in a gds with hierarchy.
In gdspy where it works, I can see that self._incomplete is defined and used within the gdsImport class 4 times.
However in gdsCAD, it is defined in the gdsImport function but is attempted to be accessed in two other functions which results in the following error:
NameError: global name '_incomplete' is not defined

As a testcase, please try the following slightly edited userguide-20.py example.
It simply saves the gds file with hierarchy and then attempts to read it back in.

I'm trying to figure out how to fix the issue, but haven't had luck yet.
I hope that somebody could take a look at this further.
Thanks,
-Tom

from gdsCAD import *

one = shapes.Box((-10,-10), (10,10), 0.5)
two = shapes.Rectangle((-10,-10), (0,0), layer=2)
three = shapes.Disk((5,5), 5, layer=3)

cell = core.Cell('DEVICE')

cell.add(one)
cell.add(two)
cell.add(three)

top = core.Cell('TOP')

ref1 = core.CellReference(cell)
top.add(ref1)

Translate

ref2 = core.CellReference(cell, origin=(40,0))
top.add(ref2)

Scale and Translate

ref3 = core.CellReference(cell, origin=(0, 40), magnification=1.5)
top.add(ref3)

Rotate and Translate

ref4 = core.CellReference(cell, origin=(40,40), rotation=45)
top.add(ref4)

top.show()

Add the copied cell to a Layout and save

layout = core.Layout('LIBRARY')
layout.add(top)
layout.save('userguide-20.gds')

Read the gds with hierarchy back in

layout2 = core.GdsImport('userguide-20.gds')

When running the sample code below I get the following error:

The Code:

import os.path
from gdsCAD import *

# Create some things to draw:
amarks = templates.AlignmentMarks(('A', 'C'), (1,2))
text = shapes.Label('Hello\nworld!', 200, (0, 0))
box = shapes.Box((-500, -400), (1500, 400), 10, layer=2)

# Create a Cell to hold the objects
cell = core.Cell('EXAMPLE')
cell.add([text, box])
cell.add(amarks, origin=(-200, 0))
cell.add(amarks, origin=(1200, 0))

# Create two copies of the Cell
top = core.Cell('TOP')
cell_array = core.CellArray(cell, 1, 2, (0, 850))
top.add(cell_array)

# Add the copied cell to a Layout and save
layout = core.Layout('LIBRARY')
layout.add(top)
layout.save('output.gds')

layout.show()

The Error:

Writing the following cells
TOP: Cell ("TOP", 0 elements, 1 references)
EXAMPLE: Cell ("EXAMPLE", 2 elements, 2 references)
CONT_ALGN: Cell ("CONT_ALGN", 9 elements, 0 references)
Traceback (most recent call last):

.... [removed]

File "C:\Python27\lib\site-packages\gdsCAD\core.py", line 105, in _layer_properties
colors += matplotlib.cm.gist_ncar(np.linspace(0.98, 0, 15))
TypeError: ufunc 'add' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

The Fix?

It appears line 105 in core.py is trying to combine a numpy array with a regular Python list. If I change line 105 to:

colors += list(matplotlib.cm.gist_ncar(np.linspace(0.98, 0, 15)))

Things run normally.

import sys
import os.path
import numpy as np
from gdsCAD import *
import matplotlib.pyplot as plt

l = core.GdsImport(os.path.abspath("my.GDS"), verbose=True)
l.show()

yields:

Traceback (most recent call last):
  File "model.py", line 8, in <module>
    l.show()
  File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.4.5_57_gc9594b8-py2.7.egg/gdsCAD/core.py", line 91, in _show
    artists=self.artist()
  File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.4.5_57_gc9594b8-py2.7.egg/gdsCAD/core.py", line 1374, in artist
    artists += c.artist()
  File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.4.5_57_gc9594b8-py2.7.egg/gdsCAD/core.py", line 1692, in artist
    art+=e.artist()
  File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.4.5_57_gc9594b8-py2.7.egg/gdsCAD/core.py", line 612, in artist
    lines = shapely.geometry.LineString(points)
  File "/usr/local/lib/python2.7/dist-packages/shapely/geometry/linestring.py", line 48, in __init__
    self._set_coords(coordinates)
  File "/usr/local/lib/python2.7/dist-packages/shapely/geometry/linestring.py", line 97, in _set_coords
    ret = geos_linestring_from_py(coordinates)
  File "shapely/speedups/_speedups.pyx", line 152, in shapely.speedups._speedups.geos_linestring_from_py
ValueError: LineStrings must have at least 2 coordinate tuples

the GDS loads fine in klayout and was sent to FAB without apparent issue.

gdsImport seems to work for a flat gds, but not for the same design when it's a hierarchical version which includes other subcells.
the error is:
Traceback (most recent call last):
File "gds_tests.py", line 11, in
amarks = core.GdsImport(myfile)#, verbose=2)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 2388, in GdsImport
layout.add(c)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1241, in add
names=[c.name for c in self.get_dependencies()]
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1260, in get_dependencies
dependencies |= set(cell.get_dependencies())
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1678, in get_dependencies
dependencies += reference.get_dependencies(include_elements)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1784, in get_dependencies
return [self.ref_cell]+self.ref_cell.get_dependencies(include_elements)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1678, in get_dependencies
dependencies += reference.get_dependencies(include_elements)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1784, in get_dependencies
return [self.ref_cell]+self.ref_cell.get_dependencies(include_elements)
AttributeError: 'str' object has no attribute 'get_dependencies'

The current setup.py uses a module called git_version. Which does not exist, at least on the the computers I tried.

-> % pip install --upgrade gdsCAD
Downloading/unpacking gdsCAD from https://pypi.python.org/packages/source/g/gdsCAD/gdsCAD-0.3.2.tar.gz#md5=45b2ce5f686c54cc6eac07df1f81eac8
  Downloading gdsCAD-0.3.2.tar.gz (447kB): 447kB downloaded
  Running setup.py egg_info for package gdsCAD
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/mnt/lin_hdd/home/mabl/Studium/Masterarbeit/PycharmProjects/devenv/build/gdsCAD/setup.py", line 9, in <module>
        from git_version import get_git_version
    ImportError: No module named git_version
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>

  File "/mnt/lin_hdd/home/mabl/Studium/Masterarbeit/PycharmProjects/devenv/build/gdsCAD/setup.py", line 9, in <module>

    from git_version import get_git_version

ImportError: No module named git_version

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /mnt/lin_hdd/home/mabl/Studium/Masterarbeit/PycharmProjects/devenv/build/gdsCAD
Storing complete log in /home/mabl/.pip/pip.log

The bounding box for the core.CellArray fails because there is a error where a tuple is subtracted by an integer. See code comment:

b0ecf46#commitcomment-8859830

I'll take a crack at this soon.

Bounding box calculator does not correctly deal with rotations or reflections.

If a box is drawn, the lower left corner ist not rectangular. There is a quadrat with edge length of half the width missing.

Fixed it in shapes.Box

added -0.5*width

points = np.array([[point1[0], point1[1]-0.5_width], [point1[0], point2[1]], [point2[0], point2[1]], [point2[0], point1[1]], [point1[0]-0.5_width, point1[1]]])

Greetings

Flo

Hi,
I am trying to import some dxf and convert it to gds.
But always the same error message pops up:

I use just this code
dxf=core.DxfImport('jcsample.dxf', scale=1.0)

runfile('C:/Users/np/Documents/Python Scripts/untitled0.py', wdir='C:/Users/np/Documents/Python Scripts')
Traceback (most recent call last):

File "", line 1, in
runfile('C:/Users/np/Documents/Python Scripts/untitled0.py', wdir='C:/Users/np/Documents/Python Scripts')

File "C:\Program Files\Anaconda2\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 699, in runfile
execfile(filename, namespace)

File "C:\Program Files\Anaconda2\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 74, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)

File "C:/Users/np/Documents/Python Scripts/untitled0.py", line 17, in
if isinstance(e, dxfgrabber.entities.LWPolyline):

AttributeError: 'module' object has no attribute 'entities'

I am using Anaconda2 (Pyhton 2.4)

Thanks for the help
Flo

from gdsCAD.core import Layout
from gdsCAD.Class_Wafer_Style import Wafer_Style_4_inch

from gdsCAD import Cell38

list = []
list.append(Cell38)

Wafer_GridStyle = Wafer_Style_4_inch('Wafer_GridStyle', list)
layout_wafer_1 = Layout('layout_wafer_final')
layout_wafer_1.add(Wafer_GridStyle)
layout_wafer_1.save('mask_final_revised_2.gds')

Output Screen:
If 2700 is not equal to 2700 there will be a rounding (machine accuracy) problem with the triangles.
If 2700 is not equal to 2700 there will be a rounding (machine accuracy) problem with the triangles.
If 2700 is not equal to 2700 there will be a rounding (machine accuracy) problem with the triangles.
If 2700 is not equal to 2700 there will be a rounding (machine accuracy) problem with the triangles.
If 2700 is not equal to 2700 there will be a rounding (machine accuracy) problem with the triangles.
If 2700 is not equal to 2700 there will be a rounding (machine accuracy) problem with the triangles.
Writing the following cells
('cell_38:', <gdsCAD.core.Cell object at 0x110ba3450>)

TypeError Traceback (most recent call last)
in ()
14
15
---> 16 Wafer_GridStyle = Wafer_Style_4_inch('Wafer_GridStyle', list)
17
18 layout_wafer_1 = Layout('layout_wafer_final')

/usr/local/lib/python2.7/site-packages/gdsCAD/Class_Wafer_Style.pyc in init(self, name, cells, block_gap, *args, **kwargs)
43 'LOWER LEFT':(-3.05e4,-2.2e4), 'LOWER RIGHT':(3.025e4,-2.15e4)}
44
---> 45 Wafer_GridStyle.init(self, name, cells, block_gap, *args, **kwargs)
46
47 self._place_blocks()

/usr/local/lib/python2.7/site-packages/gdsCAD/templates.pyc in init(self, name, cells, block_gap)
54 #self.cells = Cell
55 self.cells = cells
---> 56 self.cell_layers=self._cell_layers()
57 self._label=None
58

/usr/local/lib/python2.7/site-packages/gdsCAD/templates.pyc in _cell_layers(self)
68 cell_layers |= set(c.get_layers())
69 else:
---> 70 for s in c:
71 cell_layers |= set(s.get_layers())
72 return list(cell_layers)

TypeError: 'module' object is not iterable

Some programs can´t open cells with characters ?$ in the cellname. So i just replaced it with ab. In core.py line 2213

Should work now.

Greetings
Flo

def _compact_id(obj):
"""
Return the id of the object as an ascii string.

This is guaranteed to be unique, and uses only characters that are permitted
in valid GDSII names.
"""

i=bin(id(obj))[2:]
#chars=string.ascii_uppercase+string.ascii_lowercase+string.digits+'?$'
chars=string.ascii_uppercase+string.ascii_lowercase+string.digits+'ab'
out=''
while len(i):
    s=int(i[-6:], base=2)
    out+=chars[s]
    i=i[:-6]
    
return out[::-1]

Hello,

I am trying to run the first script on the documentation page:

The Code:
`from gdsCAD import *

cell=core.Cell('TOP')

for l in (3,6,10):
box=shapes.Box((-l,-l), (l,l), width=0.2, layer=2)
cell.add(box)

layout = core.Layout('LIBRARY')
layout.add(cell)

layout.save('output.gds')
layout.show()
`

I am getting the following error:
Writing the following cells
TOP: Cell ("TOP", 3 elements, 0 references)
Traceback (most recent call last):
File "p1.py", line 18, in
layout.show()
File "/Users/Prabudhya/anaconda2/lib/python2.7/site-packages/gdsCAD-0.4.5-py2.7.egg/gdsCAD/core.py", line 82, in _show
artists=self.artist()
File "/Users/Prabudhya/anaconda2/lib/python2.7/site-packages/gdsCAD-0.4.5-py2.7.egg/gdsCAD/core.py", line 1132, in artist
artists += c.artist()
File "/Users/Prabudhya/anaconda2/lib/python2.7/site-packages/gdsCAD-0.4.5-py2.7.egg/gdsCAD/core.py", line 1389, in artist
art+=e.artist()
File "/Users/Prabudhya/anaconda2/lib/python2.7/site-packages/gdsCAD-0.4.5-py2.7.egg/gdsCAD/core.py", line 477, in artist
return [descartes.PolygonPatch(poly, lw=0, **self._layer_properties(self.layer))]
File "/Users/Prabudhya/anaconda2/lib/python2.7/site-packages/gdsCAD-0.4.5-py2.7.egg/gdsCAD/core.py", line 105, in _layer_properties
colors += matplotlib.cm.gist_ncar(np.linspace(0.98, 0, 15))
TypeError: ufunc 'add' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

I am not sure how to solve this problem. Thanks for you help.

Pra

Hi, I was able to install the gdsCAD with python 3 on my Linux machine. I was able to checkout to the 2and3 branch and run the python setup.py install command.

But when I try to install the package using the same command on Windows I am getting value error in the function get_version(). I am pasting the error message below. Also, I am unable to find any _version.py file in the gdsCAD directory.

Traceback (most recent call last):
File "setup.py", line 10, in
version = get_version(),
File "E:\myenv3\gdsCAD-2and3\git_version.py", line 101, in get_version
raise ValueError("Cannot find the version number!")
ValueError: Cannot find the version number!

Can someone please help me with the installation on Python 3. Currently, I am trying to upgrade my software tool to Python 3 and I need gdsCAD for that.

I was wondering if there's a plan to implement DEPLOF fonts into gdsCAD? http://mems.technion.ac.il/ Some other GDS packages have support for DEPLOF.

Trying to show any GDSfile, even the example provided on the website fails with the following error;

File "C:\Users\me\Anaconda2\lib\site-packages\gdsCAD\core.py", line 105, in _layer_properties
colors += matplotlib.cm.gist_ncar(np.linspace(0.98, 0, 15))
TypeError: ufunc 'add' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

After importing the layout, when trying to save the same file to an output file, it will give the following error:
imported correctly
Writing the following cells
IGA_SQ_AI_124_A: Cell ("IGA_SQ_AI_124_A", 1911170 elements, 0 references)
Traceback (most recent call last):
File "gds_tests.py", line 13, in
core.Layout.save(amarks, myoutfile)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1325, in save
outfile.write(cell.to_gds(self.unit / self.precision, duplicates))
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1491, in to_gds
data += element.to_gds(multiplier)
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 736, in to_gds
return data + struct.pack('>2h2l2h', 12, 0x1003, int(round(self.points[0] * multiplier)), int(round(self.points[1] * multiplier)), 4 + len(text), 0x1906) + text.encode('ascii') + struct.pack('>2h', 4, 0x1100)
struct.error: 'l' format requires -2147483648 <= number <= 2147483647

is it a float problem in the original gds?

Hi,

I'd like to design a circle (Disk) with a matrix of voids (Circles?) inside (as in the attached

image).

Is it possible using gsdCAD 0.4.5? Should I try the development version, which supports boolean operators?

Thanks.

From the last commits, looks like you guys were already thinking about this, but v3 support would be nice. Dunno about the core, but the installer seems to need some tweaks to make it compatible (in git_version.py, for example, there is a print call that breaks in v3)

How do you change the resolution of the output gds file? I know the default is 1nm, but would like to modify it. Sorry if its not the right forum for this question, but there isn't really community I know of for gdsCAD to discuss such things.

The hyperlinks in the Examples section of the docs (https://pythonhosted.org/gdsCAD/examples.html) appear to be broken. For instance, I get redirected to https://pythonhosted.org/gdsCAD//examples-1.py. Removing the extra / before examples-1.py brings me to the right link, but I'm not sure how this would be patched properly.

Hello guys,
I have started using this package recently.
I was trying to get the bounding_box for my layout using following lines of code

cell_info = core.GdsImport("/home/ubuntu/GDSCAD_PACKAGE/gdsCAD-0.4.5/bitcell_t1.gds")
cell_points = cell_info.bounding_box()

This gives me the following error:
Traceback (most recent call last):
File "checkGDS.py", line 24, in
cell_points = cell_info.bounding_box()
TypeError: 'numpy.ndarray' object is not callable

Plz suggest how to fix this.

amarks = core.GdsImport(myfile)
print "import correctly"
amarks.show()
the import apparently works, although the .show has an error. I attach traceback:
import correctly
Traceback (most recent call last):
File "gds_tests.py", line 11, in
amarks.show()
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 91, in _show
artists=self.artist()
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1374, in artist
artists += c.artist()
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 1692, in artist
art+=e.artist()
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 471, in artist
return [matplotlib.patches.Polygon(self.points, closed=True, lw=0, **self._layer_properties(self.layer))]
File "/usr/local/lib/python2.7/dist-packages/gdsCAD-0.5.0-py2.7.egg/gdsCAD/core.py", line 183, in _layer_properties
colors += matplotlib.cm.gist_ncar(np.linspace(0.98, 0, 15))
TypeError: ufunc 'add' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32')

The import scheme should load the last (closing) point of a boundary. The closing point is now added explicitly on Boundary creation, so all _points lists include the closing point. The import function should do the same.

Is it correct that GdsImport does not currently support texttype?
I see in the code some commented out lines that refer to texttype.
The texttype is used in all chip layouts.
Would supporting texttype be something relatively easy to add?
Thanks,
-Tom

This is an issue since MultiPolygon is used to represent Elements as shapely objects.

>>>d1 = shapes.Disk((10,0), 15)
>>>d2 = shapes.Disk((-10,0), 15)
>>>d1.shape.is_valid
True
>>>e = core.Elements([d1,d2])
>>>e.shape.is_valid
False

Further boolean operations on e will fail.

Hello Developers, I met a problem when I want to install gdsCAD in py38 environment. Here is the error I got, can you help me sort it out? Thanks a lot for your time.

(base) C:\Users\87490\Downloads\gdsCAD-master>python setup.py install
Traceback (most recent call last):
  File "setup.py", line 4, in <module>
    from git_version import sdist, get_version
  File "C:\Users\87490\Downloads\gdsCAD-master\git_version.py", line 107
    print get_version()
          ^
SyntaxError: invalid syntax

in gdsCAD version 0.4.5, in core.py I get an error when using GdsImport on a particular .gds file.

NameError: global name '_incomplete' is not defined

here is the code where the error occurrs (around line 2174):

def _create_reference(**kwargs):
    kwargs['origin'] = kwargs.pop('xy')
    ref = CellReference(**kwargs)
    if not isinstance(ref.ref_cell, Cell):
        _incomplete.append(ref)
    return ref

_incomplete is initialized in GdsImport as an empty list [] but it's outside the scope of where _create_reference is defined. It is also used in _create_array, and would probably generate the same error when executed.

I have tried out-commenting the if block in _create_reference but then I get errors later on because ref.ref_cell is a string instead of a Cell object.

edit:
I fixed this to some extent by declaring _incomplete as a global variable in the core.py module. However now when GdsImprt tries to resolve the references, it looks up the string value of ref.ref_cell in cell_dict, which again is not defined (around line 2041).

Here is the log of my system. please someone help. I am new in Linux.

hegder@hegder-Inspiron-3543:/Downloads/gdsCAD-master$ sudo python setup.py install
Traceback (most recent call last):
File "setup.py", line 10, in
version = get_version(),
File "/home/hegder/Downloads/gdsCAD-master/git_version.py", line 100, in get_version
raise ValueError("Cannot find the version number!")
ValueError: Cannot find the version number!
hegder@hegder-Inspiron-3543:/Downloads/gdsCAD-master$

I was using gdsCAD to generate layouts for lithography. There will be typically hundreds of thousands of GDS elements in one layout. When I was using gdaCAD for Python2 I never had any trouble creating layouts with up to million elements(I also use cellArray feature and translate feature to reduce number of elements whenever possible). It used to take about 5 minutes to write a layout with approx 1 million elements.

But now, even with a few hundred thousand elements, the system seems to hang and never recover and it never produces the final gds file. Has anyone come across this issue?