一文教你利用Python画花样图(地球仪显示)

地球仪加线

根据地球仪的区域显示在相应的位置图形上加上线条，完美的线性地球仪详细代码如下：

`import plotly.express as px
df = px.data.gapminder.query("year == 2007")
fig = px.line_geo(df, locations="iso_alpha",
color="continent", 
# "continent" is one of the columns of gapminder
projection="orthographic")
fig.show`

显示结果为：**

地图上加线

绘画出相应的地图后添加经纬度，再根据经纬度绘画出相应的线条，详细代码如下：

import
plotly.graph_objects
as
go
fig = go.Figure(data=go.Scattergeo(
lat = [3.86, 53.55],
lon = [73.66, 135.05],
mode = 'lines',
line = dict(width = 2, color = 'red'),
))
fig.update_layout(
geo = dict(
resolution = 50,
showland = True,
showlakes = True,
landcolor = 'rgb(203, 203, 203)',
countrycolor = 'rgb(204, 204, 204)',
lakecolor = 'rgb(255, 255, 255)',
projection_type = "equirectangular",
coastlinewidth = 3,
lataxis = dict(
range = [20, 60],
showgrid = True,
dtick = 10
),
lonaxis = dict(
range = [-100, 20],
showgrid = True,
dtick = 20
),
)
)
`fig.show`

显示结果如下：

最后的福利-3D图鉴赏

最后加入一个3D图像鉴赏，制作图像详细代码如下：

# 导入包import
plotly.graph_objects
as
go
from
plotly.subplots
import
make_subplots
import
numpy
as
np
N = 50
fig = make_subplots(rows=2, cols=2,
specs=[[{'is_3d': True}, {'is_3d': True}],
[{'is_3d': True}, {'is_3d': True}]],
print_grid=False)
for i in [1,2]:
for j in [1,2]:
fig.append_trace(
go.Mesh3d(
x=(50*np.random.randn(N)),
y=(20*np.random.randn(N)),
z=(40*np.random.randn(N)),
opacity=0.5,
),
row=i, col=j)
`fig.update_layout(width=700, margin=dict(r=9, l=9, b=9, t=9))
# 将左上角子图中的比率固定为立方体
fig.update_layout(scene_aspectmode='cube')
# 手动强制z轴显示为其他两个的两倍大
fig.update_layout(scene2_aspectmode='manual',
scene2_aspectratio=dict(x=1, y=1, z=2))
# 绘制轴线与轴线范围的比例成比例
fig.update_layout(scene3_aspectmode='data')
# 使用“data”作为默认值自动生成比例良好的内容
fig.update_layout(scene4_aspectmode='auto')
#显示
fig.show`

显示结果如下：