New charts wishlist

The most requested feature in the plotly user survey has been “More chart types” 2 years in a row.

This issue inventories remaining chart types (or “traces” in plotly parlance) that are still requested for plotly.js and Chart Studio. Pipelines to make most of these charts already exists in Python and R by combining lower level plotly.js traces (lines, SVG shapes, bars, area fills, etc).

plotly.js trace types that do not exist yet

“Business charts”

• Funnel charts Example
• Stacked area charts Example
• Waterfall charts Example
• Hero numbers Example
• Gauges Example
• Bullet charts Example
• Tree maps https://github.com/plotly/plotly.js/issues/1038
• Voronoi tree maps Example & resource
• Marimekko charts #4019
• Timeline https://github.com/plotly/plotly.js/issues/2803
• Gantt charts Discussion
• Aster plots (https://github.com/plotly/plotly.js/issues/2901)
• Cost curve charts Example

Geo

• County choropleths (w/o zoom for perf.) Example
• Contours on maps (“weather maps”) Example
• MapboxGL heatmap support Example

Scientific

• 3d streamtubes Example
• 3d cone plots Example
• 3d volume plots Example
• 3d isosurface Example
• Sunbursts Example
• ~WebGL/regl network graphs Example~ Implementing as a Dash Component
• Parallel categories Example ➡️ https://github.com/jonmmease/plotly.js/pull/1
• 2d quiver plots Example
• Bagplot (and Bagplot matrix) Reference
• strip and/or swarm plots #4021
• Chord diagrams #3942
• Mosaic charts #4020
• fromto https://github.com/plotly/plotly.js/issues/2876

Existing plotly.js traces which need Chart Studio integration

• All polar trace types
• histogram2dcontour
• Sankey diagrams
• All 2d WebGL trace types
• Violin plots
• All carpet plot trace types
• pointcloud
• Parallel coordinate plots
• sploms
• Chart types in “plotly.js trace types that do not exist yet” when finished

[etpinard]

• facet / trellis from https://github.com/plotly/plotly.js/issues/4248

[etpinard]

From @kiranshila in https://github.com/plotly/plotly.js/issues/4074

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I think adding support to plot to Smith Charts would be extremely beneficial to everyone working in RF/Microwave engineering.

It basically is a modified polar plot with a Mobius transform mapping complex numbers onto a polar plane.

There are several implementations across a few plotting backends: PGFPlots has it in LaTeX, PySmithChart and Matplotlib have it in Python, it’s native in MATLAB, and InspectDR has it in Julia. But none of them implement interactability as well as the leading CAD software which utilizes Smith Charts in design work.

I think Plotly is perfect for this as it can provide a true cross-platform interactive means by which to visualize complex data for radio engineers.

I am more than happy to do a PR, I just need some guidance on how to start working on what is effectively a new axis type.