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added arctic region for plotting in stereographic projection and modified projection logic #2401

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Merged
iluise merged 6 commits into from
May 28, 2026
+23 −11
Merged

added arctic region for plotting in stereographic projection and modified projection logic #2401

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cc4df73
added arctic region for plotting in stereographic projection and modi…
May 22, 2026
6251f72
new projection logic in plotter
MatteoBroccoli May 22, 2026
a870dbb
restored attention and positional_encoding
MatteoBroccoli May 27, 2026
9bd4db0
added icon, arome, uwc-west regions
MatteoBroccoli May 27, 2026
9de1657
removing accidental file
MatteoBroccoli May 27, 2026
450c3f2
Merge branch 'develop' into arctic-region-projection
iluise May 28, 2026
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11 changes: 10 additions & 1 deletion packages/evaluate/src/weathergen/evaluate/plotting/plotter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -888,7 +888,16 @@ def scatter_plot(
if figsize is None and data.size >= 200_000:
figsize = (15, 7)

proj = ccrs.Robinson() if regionname == "global" else ccrs.PlateCarree()
proj = ccrs.PlateCarree()
if regionname:
try:
# This uses the method already available in RegionBoundingBox
bbox = RegionBoundingBox.from_region_name(regionname)
proj = bbox.projection
except ValueError:
# If regionname isn't in the library, fall back to PlateCarree
_logger.warning(f"Region '{regionname}' not found in library, using PlateCarree.")
proj = ccrs.PlateCarree()
fig = plt.figure(figsize=figsize, dpi=self.dpi_val)
ax = fig.add_subplot(1, 1, 1, projection=proj)
try:
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23 changes: 13 additions & 10 deletions packages/evaluate/src/weathergen/evaluate/utils/regions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
from dataclasses import dataclass
from typing import ClassVar

import cartopy.crs as ccrs
import xarray as xr

_logger = logging.getLogger(__name__)
Expand All @@ -22,16 +23,17 @@ class RegionLibrary:
Predefined bounding boxes for known regions.
"""

REGIONS: ClassVar[dict[str, tuple[float, float, float, float]]] = {
"global": (-90.0, 90.0, -180.0, 180.0),
"nhem": (0.0, 90.0, -180.0, 180.0),
"shem": (-90.0, 0.0, -180.0, 180.0),
"tropics": (-30.0, 30.0, -180.0, 180.0),
"belgium": (49, 52, 2, 7),
"europe": (35, 70, -10, 40),
"uwc-west": (39.0, 63.0, -26.0, 41.0),
"arome": (37.0, 56.0, -12.0, 16.0),
"icon": (42.0, 51.0, -1.0, 18.0),
REGIONS: ClassVar[dict[str, tuple[float, float, float, float, ccrs.Projection]]] = {
"global": (-90.0, 90.0, -180.0, 180.0, ccrs.Robinson()),
"nhem": (0.0, 90.0, -180.0, 180.0, ccrs.PlateCarree()),
"shem": (-90.0, 0.0, -180.0, 180.0, ccrs.PlateCarree()),
"tropics": (-30.0, 30.0, -180.0, 180.0, ccrs.PlateCarree()),
"belgium": (49, 52, 2, 7, ccrs.PlateCarree()),
"europe": (35, 70, -10, 40, ccrs.PlateCarree()),
"arctic": (50.0, 90.0, -180.0, 180.0, ccrs.Stereographic(central_longitude=0, central_latitude=90)),
"uwc-west": (39.0, 63.0, -26.0, 41.0, ccrs.PlateCarree()),
"arome": (37.0, 56.0, -12.0, 16.0, ccrs.PlateCarree()),
"icon": (42.0, 51.0, -1.0, 18.0, ccrs.PlateCarree()),
}


Expand All @@ -41,6 +43,7 @@ class RegionBoundingBox:
lat_max: float
lon_min: float
lon_max: float
projection: ccrs.Projection

def __post_init__(self):
"""Validate the bounding box coordinates."""
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