‘EddiesObservations‘ object has no attribute ‘filled‘

问题

最近用到了py-eddy-tracker, 参照官方文档进行漩涡区域填充时发现调用py_eddy_tracker.observations.observation.EddiesObservations.filled 报错:

'EddiesObservations' object has no attribute 'filled'

尝试

filled函数的官方文档
查看官网提供的源码发现是有filled函数的,但是自己本地的库中没有.

检查版本发现本地版本为3.2.0, 官方文档版本为3.5.0

> pip show pyEddyTracker

Name: pyEddyTracker
Version: 3.2.0
...

而且pip无法安装3.5.0

> pip install pyEddyTracker==3.5.0

ERROR: Could not find a version that satisfies the requirement pyEddyTracker==3.5.0 (from versions: 3.0.0, 3.1.0, 3.2.0)
ERROR: No matching distribution found for pyEddyTracker==3.5.0

尝试使用文档提供的办法手动安装最新版本:
最后提示版本过低, 我的python3.6无法安装最新版的py-eddy-tracker

RuntimeError: Cannot install on Python version 3.6.4; only versions >=3.7,<3.10 are supported

解决方法

升级python
升级python版本是不可能的, 这辈子都不可能的.

手动修改observation.py源码

# 32行+
from matplotlib.cm import get_cmap
from matplotlib.collections import PolyCollection
from matplotlib.colors import Normalize# 1259行+def parse_varname(self, name):return self[name] if isinstance(name, str) else namedef format_label(self, label):t0, t1 = self.periodreturn label.format(t0=t0,t1=t1,nb_obs=len(self),)def filled(self,ax,varname=None,ref=None,intern=False,cmap="magma_r",lut=10,vmin=None,vmax=None,factor=1,**kwargs,):""":param matplotlib.axes.Axes ax: matplotlib axe used to draw:param str,array,None varname: variable used to fill the contours, or an array of same size than obs:param float,None ref: if defined, all coordinates are wrapped with ref as western boundary:param bool intern: if True draw speed contours instead of effective contours:param str cmap: matplotlib colormap name:param int,None lut: Number of colors in the colormap:param float,None vmin: Min value of the colorbar:param float,None vmax: Max value of the colorbar:param float factor: multiply value by:return: Collection drawed:rtype: matplotlib.collections.PolyCollection.. minigallery:: py_eddy_tracker.EddiesObservations.filled"""x_name, y_name = self.intern(intern)x, y = self[x_name], self[y_name]if ref is not None:# TODO : maybe buggy with global displayshape_out = x.shapex, y = wrap_longitude(x.reshape(-1), y.reshape(-1), ref)x, y = x.reshape(shape_out), y.reshape(shape_out)verts = list()for x_, y_ in zip(x, y):verts.append(create_vertice(x_, y_))if "facecolors" not in kwargs:kwargs = kwargs.copy()cmap = get_cmap(cmap, lut)v = self.parse_varname(varname) * factorif vmin is None:vmin = v.min()if vmax is None:vmax = v.max()v = (v - vmin) / (vmax - vmin)colors = [cmap(v_) for v_ in v]kwargs["facecolors"] = colorsif "label" in kwargs:kwargs["label"] = self.format_label(kwargs["label"])c = PolyCollection(verts, **kwargs)ax.add_collection(c)c.cmap = cmapc.norm = Normalize(vmin=vmin, vmax=vmax)return c

结果

成功调用

fig = plt.figure(figsize=(3, 2))
ax = fig.add_axes([.03, .03, .94, .94])
ax.set_ylim(4, 30)
ax.set_xlim(105.5, 150)
plt.axis('off')
plt.gca().xaxis.set_major_locator(plt.NullLocator())
plt.gca().yaxis.set_major_locator(plt.NullLocator())
plt.subplots_adjust(top=1, bottom=0, right=1, left=0, hspace=0, wspace=0)
plt.margins(0, 0)
ax.set_aspect('equal')
a.filled(ax, 'amplitude', vmin=0, vmax=.5, color='b')     # 填充
c.filled(ax, 'amplitude', vmin=0, vmax=.5, color='r')
plt.show()

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‘EddiesObservations‘ object has no attribute ‘filled‘

问题

尝试

解决方法

结果

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