Gdspy 2 initial commit

README.md

@@ -21,9 +21,8 @@ Typical applications of gdspy are in the fields of electronic chip design, plana
 
 ### Dependencies:
 
-* [Python](http://www.python.org/) (tested with versions 2.7, 3.5, 3.6, and 3.7)
+* [Python](http://www.python.org/) (tested with versions 3.5, 3.6, and 3.7)
 * [Numpy](http://numpy.scipy.org/)
-* [Python-future](http://python-future.org/) (only for Python 2)
 * C compiler (needed only if built from source)
 * Tkinter (optional: needed for the `LayoutViewer` GUI)
 * [Sphinx](http://sphinx-doc.org/) (optional: to build the documentation)
@@ -70,6 +69,14 @@ Help support gdspy development by [donating via PayPal](https://www.paypal.com/c
 * Iterating over `Cell` objects yield all its polygons, paths, labels and references.
 * Breaking change to `*.to_gds` functions in order to improve write efficiency (this should not be a problem for most users, since `gdspy.write_gds` and `Cell.write_gds` remain the same).
 
+#### Version 2.0
+* Gdspy no longer maintains a global library; the user is responsible for creating a library and adding cells to it.
+* `GdsLibrary.add` can add dependencies recursively.
+* Renamed `GdsLibrary.cell_dict` to `GdsLibrary.cells`.
+* Removed `GdsLibrary.extract`.
+* Deprecated classes `PolyPath` and `L1Path` removed: use `FlexPath` and `RobustPath`.
+* Deprecated function `fast_boolean` removed: use `boolean`.
+
 ### Version 1.4.2 (Oct 01, 2019)
 * Bug fix in `FlexPath`.
 

docs/_static/fonts.py

@@ -49,6 +49,7 @@ def render_text(text, size=None, position=(0, 0), font_prop=None, tolerance=0.1)
 if __name__ == "__main__":
     fp = FontProperties(family='serif', style='italic')
     text = gdspy.PolygonSet(render_text('Text rendering', 10, font_prop=fp), layer=1)
-    gdspy.Cell('TXT').add(text)
-    gdspy.write_gds('fonts.gds')
-    gdspy.LayoutViewer()
+    lib = gdspy.GdsLibrary()
+    lib.add(gdspy.Cell('TXT').add(text))
+    lib.write_gds('fonts.gds')
+    gdspy.LayoutViewer(lib)

docs/_static/photonics.py

@@ -74,6 +74,7 @@ def grating(period, number_of_teeth, fill_frac, width, position, direction, lda=
 
 if __name__ == '__main__':
     # Examples
+    lib = gdspy.GdsLibrary()
 
     # Negative resist example
     width = 0.45
@@ -109,6 +110,7 @@ def grating(period, number_of_teeth, fill_frac, width, position, direction, lda=
     c.add(gdspy.CellArray(taper, len(ring_gaps), 1, (input_gap, 0), (0, 0)))
     c.add(gdspy.CellArray(grat, len(ring_gaps), 1, (input_gap, 0), (io_gap, 900 + taper_len)))
 
+    lib.add(c)
 
     # Positive resist example
     width = 0.45
@@ -157,7 +159,8 @@ def grating(period, number_of_teeth, fill_frac, width, position, direction, lda=
     c.add(gdspy.CellArray(taper, len(ring_gaps), 1, (input_gap, 0), (0, 0)))
     c.add(gdspy.CellArray(grat, len(ring_gaps), 1, (input_gap, 0), (io_gap, 900 + taper_len)))
 
+    lib.add(c)
 
     # Save to a gds file and check out the output
-    gdspy.write_gds('photonics.gds')
-    gdspy.LayoutViewer()
+    lib.write_gds('photonics.gds')
+    gdspy.LayoutViewer(lib)