From e1866c008519499305b7a679599307d2991223e9 Mon Sep 17 00:00:00 2001
From: appleb_m <martin.appleby@psi.ch>
Date: Fri, 6 Feb 2026 15:58:00 +0100
Subject: [PATCH] Common: added aerotech coordinate model for using smargon to
 interface aerotech

---
 src/aare/common/coordinate.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/aare/common/coordinate.py b/src/aare/common/coordinate.py
index edbdebc4..76da6e25 100644
--- a/src/aare/common/coordinate.py
+++ b/src/aare/common/coordinate.py
@@ -102,3 +102,21 @@ def positive_coords(value: Coordinate) -> Coordinate:
     if value.x <= 0 or value.y <= 0:
         raise ValueError("Coordinates must be positive")
     return value
+
+
+class AerotechCoordinate(BaseModel):
+    at_mm: Optional[Coordinate] = None
+    omega_deg: Optional[float] = None
+
+    def eq(self, other: "AerotechCoordinate", tol: float) -> bool:
+        return (
+            abs(self.at_mm.x - other.at_mm.x) < tol
+            and abs(self.at_mm.y - other.at_mm.y) < tol
+            and abs(self.at_mm.z - other.at_mm.z) < tol
+            and abs(self.omega_deg - other.omega_deg) < tol
+        )
+
+    def __eq__(self, other: object) -> bool:
+        if isinstance(other, AerotechCoordinate):
+            return self.eq(other, tol=0.01)
+        return NotImplemented
\ No newline at end of file