Idea: Polar/Circular Charts about smoothie HOT 4 OPEN

Can you share an image that shows roughly what you'd like the output to look like?

from smoothie.

Something like these two plots showing the angle of a motor at two different angular velocities.

Note, the polar grid would be fixed in angle but the radius lines would be "scrolling" from the center to the edge.

The more I look at this, the more I think this might need to be a separate (forked) project...

from smoothie.

One difference to consider is that Smoothie has a TimeSeries object that is logically unbounded, and only a fixed length window at the end (leading up to Date.now()) is shown. For a polar chart, you have 0-360 degrees, potentially wrapping.

It probably makes sense to use Smoothie's code for inspiration and creating something new. It would be possible to start supporting new chart types in Smoothie, but we wouldn't want to get away from the value Smoothie has in being a simple focussed chart type.

from smoothie.

I think I've failed to articular my thinking fully.

Just like SmoothieCharts, the data from a TimeSeries, once it gets to the edge of the circle, gets discarded (just like SmoothieCharts).

Basically, map the x axis of SmoothieCharts to r (radius) and the y axis to θ (angle). Auto scaling basically not needed since you always know what one revolution is. Though I imagine being able to specify a scale would make a lot of sense.

Back to the point at hand, it sounds like it makes more sense to keep this as a separate project.

I'm still wondering if a 2D chart would make sense, where the canvas doesn't scroll and the data essentially just expires (or fades to nothing) over some defined period of time.

from smoothie.