added metadata schema (#13)

* added metadata schema

* added metadata schema

* added extra area

cdr_schemas/area_extraction.py

@@ -12,6 +12,9 @@ class AreaType(str, Enum):
     OCR = "ocr"
     Polygon_Legend_Area = "polygon_legend_area"
     Line_Point_Legend_Area = "line_point_legend_area"
+    Line_Legend_Area = "line_legend_area"
+    Point_Legend_Area = "point_legend_area"
+    Correlation_Diagram = "correlation_diagram"
 
 
 class Area_Extraction(BaseModel):
@@ -44,4 +47,5 @@ class Area_Extraction(BaseModel):
     model_version: Optional[str] = Field(
         description="model version used for extraction"
     )
+
     model_config = ConfigDict(protected_namespaces=())

cdr_schemas/georeference.py

@@ -60,13 +60,13 @@ class GroundControlPoint(BaseModel):
     map_geom: Geom_Point = Field(
         ...,
         description="""
-            Point geometry, in world coordinates. [longitude, latitude].
+            Point geometry, in world coordinates. 
         """,
     )
     px_geom: Pixel_Point = Field(
         ...,
         description="""
-            Point geometry, in pixel coordinates. [columns from left, row from bottom].
+            Point geometry, in pixel coordinates.
         """,
     )
     confidence: Optional[float] = Field(

cdr_schemas/metadata.py

@@ -0,0 +1,85 @@
+from typing import List, Union, Optional
+from enum import Enum
+from pydantic import BaseModel, Field, ConfigDict
+
+
+class MapShapeTypes(str, Enum):
+    """Enum for the possible values of map_shape field of MapMetadata."""
+
+    rectangular = "rectangular"
+    non_rectangular = "non_rectangular"
+
+
+class MapColorSchemeTypes(str, Enum):
+    """Enum for the possible values of map_color_scheme field of MapMetadata"""
+
+    full_color = "full_color"
+    monochrome = "monochrome"
+    grayscale = "grayscale"
+
+
+class MapMetaData(BaseModel):
+    title: Optional[str] = Field(
+        ...,
+        description="""
+            Title of the map/cog.
+        """,
+    )
+    year: Optional[int] = Field(
+        ...,
+        description="""
+            Year the map was made. i.e. 2012
+        """,
+    )
+    crs: Optional[str] = Field(
+        ...,
+        description="""
+            CRS of the map. i.e. "EPSG:4267"
+        """,
+    )
+    authors: Optional[List[str]] = Field(
+        ...,
+        description="""
+            Authors of the map
+        """,
+    )
+    organization: Optional[str] = Field(
+        ...,
+        description="""
+            Organization that created the map
+        """,
+    )
+    scale: Optional[int] = Field(
+        ...,
+        description="""
+            Scale of the map. 24000 would be equivalent to 1:24000
+        """,
+    )
+    quadrangle_name: Optional[str] = Field(
+        ...,
+        description="""
+            If map is based on a quadrangle location we can save the name here. 
+        """,
+    )
+    map_shape: Optional[MapShapeTypes] = Field(
+        ...,
+        description="""
+            If the map area(s) has a rectangle shape.
+        """,
+    )
+    map_color_scheme: Optional[MapColorSchemeTypes]
+    publisher: Optional[str]
+    state: Optional[str]
+
+    model: str
+    model_version: str
+
+    model_config = ConfigDict(protected_namespaces=())
+
+
+class CogMetaData(BaseModel):
+    cog_id: str
+    system: str
+    system_version: str
+    multiple_maps: Optional[bool]
+    map_metadata: Optional[List[MapMetaData]]