Plotting Shapely objects in declarative interface #1973
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23ccozad
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Linter doesn't like the modulo operators for some reason. Is that something I need to fix, or is it a false positive on the linter's part? Also, codecov is being finicky on the conda tests for some reason. Other than that, this is ready for review. |
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Also, the modulus operator from flake8 is a false positive bug in pep8-3101 (gforcada/flake8-pep3101#23). Seeing as this is the standpoint:
We can stop using that plugin and I'll look for an f-string plugin that doesn't do this instead. |
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I don't understand why the |
This avoids installing CartoPy build dependencies unless we actually need CartoPy.
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It's failing because we manually install Shapely as part of Cartopy's build dependencies, even when we don't need Cartopy. I've pushed a commit to this PR to fix that. Be sure to pull those down before a future rebase (assuming this works properly). |
src/metpy/plots/declarative.py
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| class PlotGeometry(HasTraits): | ||
| """Plot collections of Shapely objects and customize their appearance.""" | ||
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| import shapely.geometry as shp |
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This will always be executed when the class body is run. I think the only way around this is by putting this inside the appropriate methods.
tests/plots/test_declarative.py
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| @@ -11,14 +11,16 @@ | |||
| import numpy as np | |||
| import pandas as pd | |||
| import pytest | |||
| from shapely.geometry import (LineString, MultiLineString, MultiPoint, MultiPolygon, Point, | |||
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These will need to move inside the test functions that need them so that our tests can continue working without Cartopy installed.
Introduces support for plotting Shapely objects in the declarative plotting interface. This new feature is implemented in a new class
PlotGeometry. Similar to other classes in the declarative interface, users create a newPlotGeometryobject, adjust the attributes to their needs, and add it to aMapPanel/PanelContainerto plot.The primary use case is for plotting data from geoJSON and shapefile formats, which can be read with geopandas. For that reason, the class is designed plot objects from the 'geometry' column from geopandas dataframes, but any collection of Shapely objects can be plotted.
Users can add labels to plotted geometry, as well as adjust the colors of geometry and labels.
Checklist