Support unstructured plotting

.cirrus.yml

@@ -259,4 +259,4 @@ linkcheck_task:
     - mkdir -p ${MPL_RC_DIR}
     - echo "backend : agg" > ${MPL_RC_FILE}
     - echo "image.cmap : viridis" >> ${MPL_RC_FILE}
-    - nox --session linkcheck -- --verbose
+    - nox --session linkcheck -- --verbose

docs/src/sphinxext/generate_package_rst.py

@@ -13,7 +13,8 @@
 # list of tuples for modules to exclude.  Useful if the documentation throws
 # warnings, especially for experimental modules.
 exclude_modules = [
-    ("experimental/raster", "iris.experimental.raster")  # gdal conflicts
+    ("experimental/raster", "iris.experimental.raster"),  # gdal conflicts
+    ("ugrid/plot", "iris.experimental.ugrid.plot"),       # cirrus-ci container opengl issues
 ]
 
 

lib/iris/experimental/ugrid.py → lib/iris/experimental/ugrid/__init__.py

@@ -21,8 +21,8 @@
 import dask.array as da
 import numpy as np
 
-from .. import _lazy_data as _lazy
-from ..common.metadata import (
+from ... import _lazy_data as _lazy
+from ...common.metadata import (
     BaseMetadata,
     metadata_filter,
     metadata_manager_factory,
@@ -31,17 +31,17 @@
     SERVICES_EQUAL,
     SERVICES_DIFFERENCE,
 )
-from ..common.lenient import _lenient_service as lenient_service
-from ..common.mixin import CFVariableMixin
-from ..config import get_logger
-from ..coords import _DimensionalMetadata, AuxCoord
-from ..exceptions import ConnectivityNotFoundError, CoordinateNotFoundError
-from ..fileformats import cf, netcdf
-from ..fileformats._pyke_rules.compiled_krb.fc_rules_cf_fc import (
+from ...common.lenient import _lenient_service as lenient_service
+from ...common.mixin import CFVariableMixin
+from ...config import get_logger
+from ...coords import _DimensionalMetadata, AuxCoord
+from ...exceptions import ConnectivityNotFoundError, CoordinateNotFoundError
+from ...fileformats import cf, netcdf
+from ...fileformats._pyke_rules.compiled_krb.fc_rules_cf_fc import (
     get_names,
     get_attr_units,
 )
-from ..util import guess_coord_axis
+from ...util import guess_coord_axis
 
 
 __all__ = [