Python 使用 plotly offline 将图形生成为图像
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Use plotly offline to generate graphs as images
提问by Matt Cremeens
I am working with plotly offline and am able to generate an html file using
我正在离线使用 plotly 并且能够使用生成一个 html 文件
plotly.offline.plot({"data": data, "layout": layout})
It works great. The graph is generated correctly and the html file gets saved to my current directory.
它工作得很好。图形正确生成，html 文件保存到我的当前目录。
What I want, though is, using plotly offline, is to have an image (.png, .jpg, etc.) file saved instead. Am I on the right track? What do I need to do from here?
不过，我想要的是，离线使用 plotly，而是保存一个图像（.png、.jpg 等）文件。我在正确的轨道上吗？我需要从这里做什么？
回答by Benares
one possibility using ipython notebook is to display the graph and then choose the option "Download plot as png" manually.
使用 ipython notebook 的一种可能性是显示图形，然后手动选择“将绘图下载为 png”选项。
回答by Benares
I found the solution in the documentation here:
我在这里的文档中找到了解决方案：
https://plot.ly/python/static-image-export/
https://plot.ly/python/static-image-export/
So a minimal example would be:
所以一个最小的例子是：
import plotly.plotly as py
import plotly.graph_objs as go
import numpy as np
N = 1000
random_x = np.random.randn(N)
random_y = np.random.randn(N)
trace = go.Scatter(
x = random_x,
y = random_y,
mode = 'markers'
)
data = [trace]
py.image.save_as({'data':data}, 'scatter_plot', format='png')
回答by RFQED
回答by LordK
Try this
尝试这个
import plotly.offline
import plotly.graph_objs as go
plotly.offline.plot({"data": [go.Scatter(x=[1, 2, 3, 4], y=[4, 3, 2, 1])],
"layout": go.Layout(title="hello world")},
image='jpeg', image_filename='test')
and open it in Chrome
并在 Chrome 中打开它
回答by Shantanu Deshmukh
Simple way of using python plotly graphs offline:
离线使用python plotly图的简单方法：
1) Write import statements
1) 编写导入语句
import plotly.graph_objs as go
import plotly as plotly
import plotly.express as px
2) write your plotly graph code e.g.
2）编写您的绘图代码，例如
data = px.data.gapminder()
data_canada = data[data.country == 'Canada']
fig = px.bar(data_canada, x='year', y='pop',
hover_data=['lifeExp', 'gdpPercap'], color='lifeExp',
labels={'pop':'population of Canada'}, height=400)
3) name your figure (provide reader-friendly name :) )
3) 为您的人物命名（提供易于阅读的名称 :) ）
plotly.offline.plot(fig, filename= output_filename + ".html")
4) Well-done! Please add comments, if you like my answer!
4）干得好！如果您喜欢我的回答，请添加评论！
