corrected a bug in place_on_chip

docs/user/api.rst

@@ -7,7 +7,7 @@ Cells
 
 .. automodule:: qnngds.cells
     :members:
-    :exclude-members: alignment, etch_test, nanowires, ntron, resolution_test, snspd, snspd_ntron, vdp
+    :exclude-members: alignment, etch_test, nanowires, ntron, resolution_test, snspd, vdp
     :undoc-members:
     :show-inheritance:
 
@@ -41,11 +41,6 @@ Cells
         .. image:: images/cells/snspd.png
             :alt: snspd.png
 
-    .. autofunction:: snspd_ntron
-
-        .. image:: images/cells/snspd_ntron.png
-            :alt: snspd_ntron.png
-
     .. autofunction:: vdp
 
         .. image:: images/cells/vdp.png
@@ -57,15 +52,10 @@ Circuits
 
 .. automodule:: qnngds.circuits
     :members:
-    :exclude-members: snspd_ntron
+    :exclude-members: 
     :undoc-members:
     :show-inheritance:
 
-    .. autofunction:: snspd_ntron
-
-        .. image:: images/circuits/snspd_ntron.png
-            :alt: snspd_ntron.png
-
 .. _Design:
 Design
 ------
@@ -115,7 +105,7 @@ ntron
 
 .. automodule:: qnngds.devices.ntron
     :members:
-    :exclude-members: sharp, smooth, smooth_compassPorts
+    :exclude-members: sharp, smooth
     :undoc-members:
     :show-inheritance:
 
@@ -129,17 +119,12 @@ ntron
         .. image:: images/devices/ntron/smooth.png
             :alt: smooth.png
 
-    .. autofunction:: smooth_compassPorts
-
-        .. image:: images/devices/ntron/smooth_compassPorts.png
-            :alt: smooth_compassPorts.png
-
 resistor
 ~~~~~~~~
 
 .. automodule:: qnngds.devices.resistor
     :members:
-    :exclude-members: meander, meander_sc_contacts, sc_contacts
+    :exclude-members: meander, meander_sc_contacts
     :undoc-members:
     :show-inheritance:
 
@@ -153,11 +138,6 @@ resistor
         .. image:: images/devices/resistor/meander_sc_contacts.png
             :alt: meander_sc_contacts.png
 
-    .. autofunction:: sc_contacts
-
-        .. image:: images/devices/resistor/sc_contacts.png
-            :alt: sc_contacts.png
-
 snspd
 ~~~~~
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "pdm.backend"
 
 [project]
 name = "qnngds"
-version = "2.3.0"
+version = "2.4.0"
 
 authors = [
   { name="A. Jacquillat", email="[email protected]" },

src/qnngds/cells.py

@@ -500,7 +500,7 @@ def ntron(
     NTRON = utility.rename_ports_to_compass(NTRON)
     if text is None:
         text = f"chk: {choke_w} \nchnl: {channel_w}"
-    cell_text = text.replace("\n", ",")
+    cell_text = text.replace(" \n", ", ")
     DIE_NTRON = Device(f"CELL.NTRON({cell_text})")
 
     DEVICE = Device(f"NTRON({cell_text})")
@@ -640,7 +640,7 @@ def snspd(
         contact_l=overlap_w,
         ports={"N": 1, "S": 1},
         ports_gnd=["S"],
-        text=f"SNSPD {text}",
+        text=f"SNSPD \n{text}",
         isolation=outline_die,
         layer=die_layer,
         pad_layer=pad_layer,

src/qnngds/design.py

@@ -170,8 +170,8 @@ def place_on_chip(
 
     # move the cell
     cell_bottom_left = (
-        -(n_cell - 1 + (n_cell % 2) * 0.5) * die_w,
-        -(m_cell - 1 + (m_cell % 2) * 0.5) * die_w,
+        -(n_cell - 1 + (n_cell % 2)) * 0.5 * die_w,
+        -(m_cell - 1 + (m_cell % 2)) * 0.5 * die_w,
     )
     cell.move(cell_bottom_left, ((coordinates[0]) * die_w, (coordinates[1]) * die_w))
 

src/qnngds/devices/snspd.py

@@ -14,11 +14,11 @@ def basic(
     num_squares: Optional[int] = None,
     turn_ratio: Union[int, float] = 4,
     terminals_same_side: bool = False,
-    layer: int = 0,
+    layer: int = dflt.layers["device"],
 ) -> Device:
     """Creates an optimally-rounded SNSPD.
 
-    Takes Phidl's snspd, rename it and flatten the device.
+    Takes Phidl's snspd, perform a union and rename it.
 
     Parameters:
         wire_width (float): Width of the nanowire.
@@ -34,7 +34,7 @@ def basic(
 
     Returns:
         Device: A Device containing an optimally-rounded SNSPD, as provided by
-        Phidl but renamed and flattened.
+        Phidl but renamed and unified.
     """
     # check parameters constrains
     if wire_pitch <= wire_width:
@@ -53,7 +53,9 @@ def basic(
         terminals_same_side,
         layer,
     )
-    SNSPD.flatten()
+    ports = SNSPD.ports
+    SNSPD = pg.union(SNSPD, layer=layer)
+    SNSPD.ports = ports
     SNSPD.name = f"SNSPD.BASIC(w={wire_width}, pitch={wire_pitch})"
     return SNSPD