Changing the Pixel Size
source link: https://datacrayon.com/posts/plotapi/terminus/changing-the-pixel-size/
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Preamble¶
from plotapi import Terminus
Terminus.set_license("your username", "your license key")Introduction¶
The Terminus pixel size can be modified to improve the presentation of our diagram, this works as intended in both WebGL and D3.js canvas mode.
As we can see, we have set our license details in the preamble with Terminus.set_license().
Dataset¶
Terminus expects a list of dictionary items, these will define the flow of pixels between a source and a target.
links = [
{"source":"England", "target":"Germany", "value": 1000},
{"source":"England", "target":"France", "value": 3000},
{"source":"England", "target":"Spain", "value": 5000},
{"source":"England", "target":"Italy", "value": 4000},
{"source":"England", "target":"Japan", "value": 800},
{"source":"Ireland", "target":"Germany", "value": 3500},
{"source":"Ireland", "target":"France", "value": 3750},
{"source":"Ireland", "target":"Spain", "value": 1750},
{"source":"Ireland", "target":"Italy", "value": 5000},
{"source":"Ireland", "target":"Japan", "value": 400},
]We can add many source's and target's! As they increase, we may need to adjust Terminus layout properties to accomodate the diagram's size and throughput.
Visualisation¶
To change the pixel size, we simply change the value of pixel_size.
Let's try a pixel size smaller than the default setting.
Here we're using .show() which outputs to a Jupyter Notebook cell, however, we may want to output to an HTML file with .to_html() instead. More on the different output methods later!
Terminus(links, pixel_size=2).show()
Plotapi - Terminus Diagram
You can do so much more than what's presented in this example, and this is covered in other sections. If you want to see the full list of growing features, check out the Plotapi API Documentation.
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