41 lines
1.4 KiB
Plaintext
41 lines
1.4 KiB
Plaintext
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python-gdsii --- a GDSII manipulation libaray
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=============================================
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python-gdsii is a library that can be used to read, create, modify and save
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GDSII files. It supports both low-level record I/O and high level interface to
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GDSII libraries (databases), structures, and elements.
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This package also includes scripts that can be used to convert binary GDS file
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to a simple text format (gds2txt), YAML (gds2yaml), and from text fromat
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back to GDSII (txt2gds).
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Usage
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-----
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For most cases interface provided by Library class from gdsii.library should be
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enough. Here is a small example::
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from gdsii.library import Library
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from gdsii.elements import *
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# read a library from a file
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with open('file.gds', 'rb') as stream:
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lib = Library.load(stream)
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# let's move the first structure to a new library
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new_lib = Library(5, b'NEWLIB.DB', 1e-9, 0.001)
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struc = lib.pop(0) # libraries and structures are derived from list class
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new_lib.append(struc)
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# let's also add some elements...
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# Note: first and last points in the boundary should be the same
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# this is required by GDSII spec.
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struc.append(Boundary(45, 0, [(-100000, -100000), (-100000, 0), (0,0), (0, -100000), (-100000, -100000)]))
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# Save both files with different names...
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with open('newfile1.gds', 'wb') as stream:
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lib.save(stream)
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with open('newfile2.gds', 'wb') as stream:
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new_lib.save(stream)
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