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Spectral subplots #424

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Spectral subplots #424

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5 changes: 3 additions & 2 deletions mikeio/dataarray.py
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Original file line number Diff line number Diff line change
Expand Up @@ -543,7 +543,7 @@ def __init__(self, da: "DataArray") -> None:
def __call__(self, ax=None, figsize=None, **kwargs):
# ax = self._get_ax(ax, figsize)
if self.da.n_frequencies > 0 and self.da.n_directions > 0:
return self._plot_2dspectrum(figsize=figsize, **kwargs)
return self._plot_2dspectrum(ax=ax, figsize=figsize, **kwargs)
elif self.da.n_frequencies == 0:
return self._plot_dirspectrum(ax=ax, figsize=figsize, **kwargs)
elif self.da.n_directions == 0:
Expand Down Expand Up @@ -591,7 +591,7 @@ def _plot_1dspectrum(self, x_values, ax=None, figsize=None, **kwargs):
ax.plot(x_values, y_values, **kwargs)
return ax

def _plot_2dspectrum(self, **kwargs):
def _plot_2dspectrum(self,ax=None, **kwargs):
values = self._get_first_step_values()

if "figsize" not in kwargs or kwargs["figsize"] is None:
Expand All @@ -605,6 +605,7 @@ def _plot_2dspectrum(self, **kwargs):
values,
frequencies=self.da.geometry.frequencies,
directions=self.da.geometry.directions,
ax=ax,
**kwargs,
)

Expand Down
10 changes: 8 additions & 2 deletions mikeio/spectral_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ def plot_2dspectrum(
levels=None,
figsize=(7, 7),
add_colorbar=True,
ax=None,
):
"""
Plot spectrum in polar coordinates
Expand Down Expand Up @@ -52,6 +53,8 @@ def plot_2dspectrum(
specify size of figure, default (7, 7)
add_colorbar: bool, optional
Add colorbar to plot, default True
ax: matplotlib.axes, optional
Adding to existing axis, instead of creating new fig

Returns
-------
Expand Down Expand Up @@ -82,8 +85,11 @@ def plot_2dspectrum(
freq = 1.0 / np.flip(freq)
spectrum = np.fliplr(spectrum)

fig = plt.figure(figsize=figsize)
ax = plt.subplot(111, polar=True)
if ax is None:
fig = plt.figure(figsize=figsize)
ax = plt.subplot(111, polar=True)
else:
fig = plt.gcf()
ax.set_theta_direction(-1)
ax.set_theta_zero_location("N")

Expand Down