brush arguments - replaces 32 and 42

[timelyportfolio]

replaces #32 without build files. All discussion is on that pull request and #31.

[BigFatDog]

Many thanks to your time. v2.1.8 has been released with this feature.
Readme has been revised to introduce this new api.

🍺 Have a good night.

[timelyportfolio]

Thanks @gordonwoodhull, I think || [] would be a good fix and will test.

[gordonwoodhull]

Thanks @timelyportfolio, it's working for me. I'll contribute back once I get my thing working!

[BigFatDog]

Thanks @timelyportfolio for the bug-fix.
v2.1.9 has been released with this bug-fix.

[timelyportfolio]

@gordonwoodhull wanted to make sure you saw #47. Thanks again for the notice.

[gordonwoodhull]

Yes, I saw that, thanks @timelyportfolio!

I still need something like #45 to better deal with external selections/filtering - I gave it a quick look on Friday but haven't had time to dig into porting your changes from the original parcoords.

I'm pursuing this entirely out of intellectual interest, so it keeps getting preempted.

[timelyportfolio]

I expect to submit a pull in next couple of days. I have code as proof of concept ready but working up some discussion and demos.