Merge pull request #1407 from simbilod/main

add angle parameter to ring component
gdsfactory · Mar 10, 2023 · 8007092 · 8007092
2 parents 679b061 + 6c89e7a
commit 8007092
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/gdsfactory/components/ring.py b/gdsfactory/components/ring.py
@@ -5,7 +5,7 @@
 
 import gdsfactory as gf
 from gdsfactory.component import Component
-from gdsfactory.typings import LayerSpec
+from gdsfactory.typings import LayerSpec, Optional
 
 
 @gf.cell
@@ -14,6 +14,7 @@ def ring(
     width: float = 0.5,
     angle_resolution: float = 2.5,
     layer: LayerSpec = "WG",
+    angle: Optional[float] = 360,
 ) -> Component:
     """Returns a ring.
 
@@ -22,12 +23,13 @@ def ring(
         width: of the ring.
         angle_resolution: number of points per degree.
         layer: layer.
+        angle: angular coverage of the ring
     """
     D = gf.Component()
     inner_radius = radius - width / 2
     outer_radius = radius + width / 2
     n = int(np.round(360 / angle_resolution))
-    t = np.linspace(0, 360, n + 1) * pi / 180
+    t = np.linspace(0, angle, n + 1) * pi / 180
     inner_points_x = (inner_radius * cos(t)).tolist()
     inner_points_y = (inner_radius * sin(t)).tolist()
     outer_points_x = (outer_radius * cos(t)).tolist()
@@ -39,5 +41,5 @@ def ring(
 
 
 if __name__ == "__main__":
-    c = ring(radius=5)
+    c = ring(radius=5, angle=270)
     c.show(show_ports=True)