chore: Expose H3HexagonLayer and H3Accessor via public API (#1004)

Follow up to #917 after solving the performance issue in #1003

Author: kylebarron

lonboard/layer/__init__.py

@@ -11,6 +11,7 @@
 from ._base import BaseArrowLayer, BaseLayer
 from ._bitmap import BitmapLayer, BitmapTileLayer
 from ._column import ColumnLayer
+from ._h3 import H3HexagonLayer
 from ._heatmap import HeatmapLayer
 from ._path import PathLayer
 from ._point_cloud import PointCloudLayer
@@ -25,6 +26,7 @@
     "BitmapLayer",
     "BitmapTileLayer",
     "ColumnLayer",
+    "H3HexagonLayer",
     "HeatmapLayer",
     "PathLayer",
     "PointCloudLayer",

lonboard/layer/_h3.py

@@ -9,8 +9,7 @@
 from lonboard._geoarrow.ops import Bbox, WeightedCentroid
 from lonboard._utils import auto_downcast as _auto_downcast
 from lonboard.layer._base import BaseArrowLayer
-from lonboard.traits import ArrowTableTrait, ColorAccessor, FloatAccessor
-from lonboard.traits._h3 import H3Accessor
+from lonboard.traits import ArrowTableTrait, ColorAccessor, FloatAccessor, H3Accessor
 
 if TYPE_CHECKING:
     import sys

lonboard/traits/__init__.py

@@ -8,6 +8,7 @@
 from ._color import ColorAccessor
 from ._extensions import DashArrayAccessor, FilterValueAccessor
 from ._float import FloatAccessor
+from ._h3 import H3Accessor
 from ._map import BasemapUrl, HeightTrait, ViewStateTrait
 from ._normal import NormalAccessor
 from ._point import PointAccessor
@@ -23,6 +24,7 @@
     "FilterValueAccessor",
     "FixedErrorTraitType",
     "FloatAccessor",
+    "H3Accessor",
     "HeightTrait",
     "NormalAccessor",
     "PointAccessor",

lonboard/traits/_h3.py

@@ -5,16 +5,10 @@
 from typing import TYPE_CHECKING, Any
 
 import numpy as np
-from arro3.core import (
-    Array,
-    ChunkedArray,
-    DataType,
-)
+from arro3.core import Array, ChunkedArray, DataType
 
 from lonboard._h3._str_to_h3 import str_to_h3
-from lonboard._serialization import (
-    ACCESSOR_SERIALIZATION,
-)
+from lonboard._serialization import ACCESSOR_SERIALIZATION
 from lonboard.traits._base import FixedErrorTraitType
 
 if TYPE_CHECKING:

tests/test_h3/test_h3_layer.py

@@ -4,7 +4,7 @@
 
 from lonboard import Map
 from lonboard._h3 import h3_to_str
-from lonboard.layer._h3 import H3HexagonLayer
+from lonboard.layer import H3HexagonLayer
 
 VALID_INDICES = np.array(
     [

tests/test_h3/test_h3_trait.py

@@ -5,7 +5,7 @@
 from traitlets import TraitError
 
 from lonboard.layer import BaseLayer
-from lonboard.traits._h3 import H3Accessor
+from lonboard.traits import H3Accessor
 
 VALID_INDICES = np.array(
     [