laygo2.interface.magic module#

laygo2.interface.magic.export(db, filename=None, cellname=None, libpath='./magic_layout', scale=1, reset_library=False, tech_library=None, gds_filename=None)[source]#

Export a laygo2.object.database.Library object to magic’s tcl code.

Parameters

  • db (laygo2.database.Library) – The library database to be exported.

  • filename (str, optional) – If specified, the generated magic(tcl) script is stored in filename.

  • cellname (str or List[str]) – The name(s) of cell(s) to be exported.

  • libpath (str) – The path where the generated magic layout is stored.

  • scale (float) – The scaling factor between laygo2’s integer coordinats actual physical coordinates.

  • reset_library (bool, optional) – If True, the library to export the cells is reset.

  • tech_library (str, optional) – The name of technology library to be attached to the resetted library.

  • gds_filename (str, optional) – If specified, export a gds file with the filename provided.

Example

>>> import laygo2
>>> from laygo2.object.database import Design
>>> from laygo2.object.physical import Rect, Pin, Instance, Text
>>> # Create a design.
>>> dsn = Design(name="mycell", libname="genlib")
>>> # Create layout objects.
>>> r0 = Rect(xy=[[0, 0], [100, 100]], layer=["M1", "drawing"])
>>> p0 = Pin(xy=[[0, 0], [50, 50]], layer=["M1", "pin"], name="P")
>>> i0 = Instance(libname="tlib", cellname="t0", name="I0", xy=[0, 0])
>>> t0 = Text(xy=[[50, 50], [100, 100]], layer=["text", "drawing"], text="T")
>>> # Add the layout objects to the design object.
>>> dsn.append(r0)
>>> dsn.append(p0)
>>> dsn.append(i0)
>>> dsn.append(t0)
>>> #
>>> # Export to magic tcl.
>>> lib = laygo2.object.database.Library(name="mylib")
>>> lib.append(dsn)
>>> scr = laygo2.interface.magic.export(lib, filename="myscript.tcl")
>>> print(scr)
(definitions of laygo2 tcl functions)
# exporting mylib__mycell
_laygo2_create_layout ./magic_layout/mylib mylib_mycell None
_laygo2_generate_rect M1 { { 0.0  0.0  } { 100.0  100.0  } } ; # for the Rect object NoName_0
_laygo2_generate_pin P M1 { { 0.0  0.0  } { 50.0  50.0  } }  ; # for the Pin object P
_laygo2_generate_instance I0 ./magic_layout/tlib tlib_t0 { 0.0  0.0  } R0 1 1 0 0 ; # for the Instance object I0
save
Returns

str

Return type

the string object contains corresponding tcl scripts.

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