I have not looked into it, maybe datashader can do this, which is a package purely focussing on viz, while vaex is more allround (although there is overlap). If

I have not looked into it, maybe datashader can do this, which is a package purely focussing on viz, while vaex is more allround (although there is overlap). If you think vaex can be useful here, feel free to ask question/open issues https://github.com/vaexio/vaex https://github.com/vaexio/vaex