###### tags: `project`

# Summer of Code project ideas
- hatching API?
- Axes 3D: https://github.com/matplotlib/matplotlib/issues/19519#issuecomment-780002963

## last years gsoc
- https://github.com/matplotlib/matplotlib/wiki/GSOC-2021-ideas
- https://github.com/matplotlib/matplotlib/projects/12

## (TH) extensions on pytest-mpl
- inspired from https://github.com/matplotlib/matplotlib/issues/18168#issuecomment-671825627

## 3rd party package revamp

## mathtext overhaul
- https://github.com/matplotlib/matplotlib/issues?q=is%3Aissue+is%3Aopen+label%3A%22topic%3A+text%2Fmathtext%22

## ipycanvas backend
- https://github.com/martinRenou/ipycanvas/issues/179

## text/font handling
- Change postscript output to use the same mechanism as PDF and SVG, which
allows text to be editable after export.
- Related issues: [#131](https://github.com/matplotlib/matplotlib/issues/131), [#11233](https://github.com/matplotlib/matplotlib/issues/11233)
- Font fallback in matplotlib. Use css-font fallback ideology to let user
provide a list of (already-present) fonts (for non-shipped fonts, refer to 3rd idea),
and render text-first route instead of font-first route. (a bit of surgery req.)
- Related issues: [#18883](https://github.com/matplotlib/matplotlib/issues/18883), [#15260](https://github.com/matplotlib/matplotlib/issues/15260)
- Font subsetting in matplotlib. Currently all the PDFs and SVGs generated embed the entire font within them, subsetting is a way to just embed the glyphs required from the font files.
- Related issues: [#12636](https://github.com/matplotlib/matplotlib/issues/12636)

## mathtext
- Allow mathtext in matplotlib to use user-provided font. There are 2 ways to go about this:
- (good) Add lualatex/xeetex like backends to work with extended DVI parser
- (better) Add support to take font paths from user.(this will most probably require a working font-fallback idea, and may be taken as an extended goal for GSoC)
- Related issues: [#2869](https://github.com/matplotlib/matplotlib/issues/2869)

## image interpolation:
- we currently rely on Agg to do image interpolation and resampling. This has pretty signifcant limitations as Agg only works on numbers between 0 and 1.
- project would consider re-implemmenting the sampling in python (numpy or using other image manipulation libraries) and/or our own C code.
- scope:
- well-defined as we have "working" implimentation to test against.
- could be partial (i.e. just impliment some of the more popular interpolation routines, and track to those when possible, and the old routines when not)

# Summer of Docs project ideas

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# Hackathon project ideas