Opened 4 years ago
Last modified 3 years ago
#23104 new defect
implement alpha for streamline plots
| Reported by: | kcrisman | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | sage-8.0 |
| Component: | graphics | Keywords: | |
| Cc: | Merged in: | ||
| Authors: | Reviewers: | ||
| Report Upstream: | N/A | Work issues: | |
| Branch: | Commit: | ||
| Dependencies: | Stopgaps: |
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Description
In #10775 we implemented streamline plots, but this ask.sagemath question requests alpha transparency for it too. Currently this raises an error.
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The matplotlib streamplot https://matplotlib.org/api/_as_gen/matplotlib.axes.Axes.streamplot.html currently doesn't support the alpha option. To allow alpha transparency, one would have to re-implement
streamline_plotby plotting lines and arrows, instead of using the matplotlib function. As the answer https://ask.sagemath.org/question/37728/transparency-option-in-streamline-plot/?answer=37729#post-id-37729 to the ask.sagemath question suggests, one can use the alpha option in PIL as a workaround.