introduce rgbplot

[maxfreu]

Hi! I've just put my plotting code into a dedicated rgbplot function, which should make plotting rasters as rgb images convenient :) I've also modified the skipmissing stuff, because I had errors when the missingval was nothing.

[rafaqz]

Amazing!

One question: is there a reason you don't use a plot(raster; rgb=true) ?

There is quite a bit if code duplication here, and the RGBPlot wrapper is a little unusual. Using an rgb keyword could solve that.

[maxfreu]

I’m just not that familiar with writing plot recipes. I can try to change it.

[rafaqz]

Yes its a little mysterious, but there is a plotattributes object in scope in recipes functions that has the keyword arguments in it:

So something like this should work:

isrgb = get(plotattributes, :rgb, false)

And

bands = get(plotattributes, :bands, 1:3)

[maxfreu]

Ok, I'll give it a try when I find the time again. How does one properly document the behaviour for plot recipes?

[rafaqz]

I don't really know how to document them! in all my packages the plotting is very poorly documented