[Doc]: contourf demo use of origin keyword #26600

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1. rcomer

   added

   Documentation

   on Aug 25, 2023
2. gautamsagar99 commented on Aug 26, 2023

   

   gautamsagar99

   on Aug 26, 2023

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   Hello,

   I'm new to open source contribution, I want to solve this issue. I think no one created a PR for this issue can I start working on it?

   Thanks
3. rcomer commented on Aug 26, 2023

   

   rcomer

   on Aug 26, 2023

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   Thanks @gautamsagar99, please go ahead and see our Contributors’ Guide here:
   https://matplotlib.org/devdocs/devel/index.html

   👍React with 👍1Reacted by Gautam Sagar
4. gautamsagar99 commented on Aug 26, 2023

   

   gautamsagar99

   on Aug 26, 2023

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   Hi @rcomer,

   I found that origin attribute is useless for all the examples which are provided here https://matplotlib.org/devdocs/gallery/images_contours_and_fields/contourf_demo.html

   Should I add a new Example which demonstrate with origin attribute so that it can be differentiate between "lower" and "upper" values?
   If so I can add this Example:

   import matplotlib.pyplot as plt
   import numpy as np
   
   x = np.arange(1, 10)
   y = x.reshape(-1, 1)
   h = x * y
   
   cs = plt.contourf(h, levels=[10, 30, 50],
       colors=['#808080', '#A0A0A0', '#C0C0C0'], extend='both', origin="upper")
   cs.cmap.set_over('red')
   cs.cmap.set_under('blue')
   cs.changed()
   

   This Example will be helpful for visualizing the plot when we include origin attribute.
5. story645

   linked a pull request that will close this issueRemoved unnecessary origin keywords #26608on Aug 31, 2023
6. timhoffm

   closed this as completedin #26608on Aug 31, 2023
7. QuLogic

   added this to the v3.8.0 milestone on Aug 31, 2023