initial structure implemented

docs -> _docs

components/coordinate_transformer/__init__.py

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+from .base import CoordinateTransformerBase
+from .coordinate_transformer import CoordinateTransformer
+
+__all__ = ["CoordinateTransformerBase", "CoordinateTransformer"]
+

components/coordinate_transformer/base.py

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+from abc import ABC, abstractmethod
+import numpy as np
+
+from models.core import GPSPoint
+from models.satellite import TileBounds
+
+
+class CoordinateTransformerBase(ABC):
+    @abstractmethod
+    def gps_to_local(
+        self, gps: GPSPoint, origin: GPSPoint
+    ) -> tuple[float, float]:
+        pass
+
+    @abstractmethod
+    def local_to_gps(
+        self, local: tuple[float, float], origin: GPSPoint
+    ) -> GPSPoint:
+        pass
+
+    @abstractmethod
+    def pixel_to_gps(
+        self,
+        pixel: tuple[float, float],
+        homography: np.ndarray,
+        tile_bounds: TileBounds,
+    ) -> GPSPoint:
+        pass
+
+    @abstractmethod
+    def gps_to_pixel(
+        self,
+        gps: GPSPoint,
+        homography: np.ndarray,
+        tile_bounds: TileBounds,
+    ) -> tuple[float, float]:
+        pass
+
+    @abstractmethod
+    def compute_distance_meters(
+        self, gps1: GPSPoint, gps2: GPSPoint
+    ) -> float:
+        pass
+
+    @abstractmethod
+    def compute_bearing(
+        self, from_gps: GPSPoint, to_gps: GPSPoint
+    ) -> float:
+        pass
+
+    @abstractmethod
+    def offset_gps(
+        self, gps: GPSPoint, distance_m: float, bearing_deg: float
+    ) -> GPSPoint:
+        pass
+

components/coordinate_transformer/coordinate_transformer.py

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+import numpy as np
+
+from .base import CoordinateTransformerBase
+from models.core import GPSPoint
+from models.satellite import TileBounds
+
+
+class CoordinateTransformer(CoordinateTransformerBase):
+    def gps_to_local(
+        self, gps: GPSPoint, origin: GPSPoint
+    ) -> tuple[float, float]:
+        raise NotImplementedError
+
+    def local_to_gps(
+        self, local: tuple[float, float], origin: GPSPoint
+    ) -> GPSPoint:
+        raise NotImplementedError
+
+    def pixel_to_gps(
+        self,
+        pixel: tuple[float, float],
+        homography: np.ndarray,
+        tile_bounds: TileBounds,
+    ) -> GPSPoint:
+        raise NotImplementedError
+
+    def gps_to_pixel(
+        self,
+        gps: GPSPoint,
+        homography: np.ndarray,
+        tile_bounds: TileBounds,
+    ) -> tuple[float, float]:
+        raise NotImplementedError
+
+    def compute_distance_meters(
+        self, gps1: GPSPoint, gps2: GPSPoint
+    ) -> float:
+        raise NotImplementedError
+
+    def compute_bearing(
+        self, from_gps: GPSPoint, to_gps: GPSPoint
+    ) -> float:
+        raise NotImplementedError
+
+    def offset_gps(
+        self, gps: GPSPoint, distance_m: float, bearing_deg: float
+    ) -> GPSPoint:
+        raise NotImplementedError
+