[meshplotlib use positive and negative diff in examples

also fix typo

docs/examples/howto_meshplotlib/plot_xy_labels_with_shared_axes.py

@@ -24,7 +24,7 @@ from ogstools.meshplotlib import (
     plot,
     setup,
 )
-from ogstools.propertylib import presets
+from ogstools.propertylib.presets import temperature
 
 plt.rcParams.update({"font.size": 32})
 
@@ -33,13 +33,15 @@ setup.length.output_unit = "km"
 setup.combined_colorbar = False
 
 meshseries = examples.meshseries_THM_2D
+mesh_a = meshseries.read(0)
+mesh_b = meshseries.read(1)
 
 # %%
 # First, by default (without shared axes) both X and Y axes will be labeled
 # automatically. The default is that both axes are shared and this will be
 # respected.
 
-fig = plot([meshseries.read(0), meshseries.read(1)], presets.temperature)
+fig = plot([mesh_a, mesh_b], temperature)
 
 
 # %%
@@ -50,13 +52,12 @@ fig = plot([meshseries.read(0), meshseries.read(1)], presets.temperature)
 # not.
 
 fig, ax = plt.subplots(2, 2, figsize=(40, 20), sharex=True, sharey=True)
-plot(meshseries.read(0), presets.temperature, fig=fig, ax=ax[0][0])
-plot(meshseries.read(1), presets.temperature, fig=fig, ax=ax[1][0])
-diff_mesh = difference(
-    meshseries.read(1), meshseries.read(0), presets.temperature
-)
-plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[0][1])
-plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[1][1])
+plot(mesh_a, temperature, fig=fig, ax=ax[0][0])
+plot(mesh_b, temperature, fig=fig, ax=ax[1][0])
+diff_ab = difference(mesh_b, mesh_a, temperature)
+diff_ba = difference(mesh_b, mesh_a, temperature)
+plot(diff_ab, temperature.delta, fig=fig, ax=ax[0][1])
+plot(diff_ba, temperature.delta, fig=fig, ax=ax[1][1])
 fig.tight_layout()
 
 # %%
@@ -66,10 +67,10 @@ fig.tight_layout()
 # last plot related function call.
 
 fig, ax = plt.subplots(2, 2, figsize=(40, 20), sharex=True, sharey=True)
-plot(meshseries.read(0), presets.temperature, fig=fig, ax=ax[0][0])
-plot(meshseries.read(1), presets.temperature, fig=fig, ax=ax[1][0])
-plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[0][1])
-plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[1][1])
+plot(mesh_a, temperature, fig=fig, ax=ax[0][0])
+plot(mesh_b, temperature, fig=fig, ax=ax[1][0])
+plot(diff_ab, temperature.delta, fig=fig, ax=ax[0][1])
+plot(diff_ba, temperature.delta, fig=fig, ax=ax[1][1])
 ax = clear_labels(ax)
 ax = label_spatial_axes(ax, np.array([0, 1]))
 fig.tight_layout()

docs/examples/howto_propertylib/plot_propertylib.py

@@ -27,7 +27,7 @@ presets.temperature.transform(273.15)
 
 # %% [markdown]
 # You can also create your own properties by creating a Scalar, Vector or Matrix
-# property. The following would doesn't to any unit conversion.
+# property. The following doesn't do any unit conversion.
 
 # %%
 custom_temperature = Scalar(

tests/test_meshplotlib.py

@@ -191,28 +191,30 @@ class MeshplotlibTest(unittest.TestCase):
     def test_sharexy(self):
         """Test if labels are skipped if axis are shared"""
         meshseries = examples.meshseries_THM_2D
+        mesh_a = meshseries.read(0)
+        mesh_b = meshseries.read(1)
         fig, ax = plt.subplots(2, 2, sharex=True, sharey=True)
         ax = ax.flatten()
         plot(meshseries.read(0), presets.temperature, fig=fig, ax=ax[0])
         plot(meshseries.read(1), presets.temperature, fig=fig, ax=ax[1])
-        diff_mesh = difference(
-            meshseries.read(0), meshseries.read(1), presets.temperature
-        )
-        plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[2])
-        plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[3])
+        diff_ab = difference(mesh_a, mesh_b, presets.temperature)
+        diff_ba = difference(mesh_b, mesh_a, presets.temperature)
+        plot(diff_ab, presets.temperature.delta, fig=fig, ax=ax[2])
+        plot(diff_ba, presets.temperature.delta, fig=fig, ax=ax[3])
         fig.tight_layout()
 
     def test_label_sharedxy(self):
         """Test labeling shared x and y axes"""
         meshseries = examples.meshseries_THM_2D
+        mesh_a = meshseries.read(0)
+        mesh_b = meshseries.read(1)
         fig, ax = plt.subplots(2, 2, sharex=True, sharey=True)
         plot(meshseries.read(0), presets.temperature, fig=fig, ax=ax[0][0])
         plot(meshseries.read(1), presets.temperature, fig=fig, ax=ax[1][0])
-        diff_mesh = difference(
-            meshseries.read(0), meshseries.read(1), presets.temperature
-        )
-        plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[0][1])
-        plot(diff_mesh, presets.temperature.delta, fig=fig, ax=ax[1][1])
+        diff_ab = difference(mesh_a, mesh_b, presets.temperature)
+        diff_ba = difference(mesh_b, mesh_a, presets.temperature)
+        plot(diff_ab, presets.temperature.delta, fig=fig, ax=ax[0][1])
+        plot(diff_ba, presets.temperature.delta, fig=fig, ax=ax[1][1])
         ax = label_spatial_axes(ax, np.array([0, 1]))
         fig.tight_layout()