类型错误：__init__() 为参数"中心"获取了多个值

Question

我是新手，我试图查看类似的错误，但我不确定为什么"中心"会成为目标，因为它使图形居中。

import yt
ds = yt.load("puredef_hdf5_chk_000000")
p = yt.ProjectionPlot(ds,'particle_postion_x', 'particle_postion_y',['particle_dens'], center='m', width=(20, 'Mpc'))
p.annotate_particles((20, 'Mpc'))
p.save()

输出为：

runfile('C:/Users/rocke/AppData/Local/Packages/CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc/LocalState/rootfs/home/richard/untitled7.py', wdir='C:/Users/rocke/AppData/Local/Packages/CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc/LocalState/rootfs/home/richard')
yt : [WARNING  ] 2020-07-02 15:22:54,470 Extending theta dimension to 2PI + left edge.
yt : [INFO     ] 2020-07-02 15:22:54,484 Parameters: current_time              = 0.0
yt : [INFO     ] 2020-07-02 15:22:54,485 Parameters: domain_dimensions         = [2 2 0]
yt : [INFO     ] 2020-07-02 15:22:54,486 Parameters: domain_left_edge          = [ 0.0000e+00 -6.5536e+09  0.0000e+00]
yt : [INFO     ] 2020-07-02 15:22:54,487 Parameters: domain_right_edge         = [6.55360000e+09 6.55360000e+09 6.28318531e+00]
yt : [INFO     ] 2020-07-02 15:22:54,488 Parameters: cosmological_simulation   = 0.0
Traceback (most recent call last):
File "C:UsersrockeAppDataLocalPackagesCanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgscLocalStaterootfshomericharduntitled7.py", line 12, in <module>
p = yt.ProjectionPlot(ds,'particle_postion_x', 'particle_postion_y',['particle_dens'], center='m', width=(20, 'Mpc'))
TypeError: __init__() got multiple values for argument 'center'

Answer 1

函数yt.ProjectionPlot接受 3 个参数，其余参数是带有关键字的可选参数。您使用的是 4 个参数，因此 1 对多 (['particle_dens'](。这可能还需要是一个关键字参数。

函数的文档： https://yt-project.org/doc/reference/api/yt.visualization.plot_window.html#yt.visualization.plot_window.ProjectionPlot