Plots.jl: Broken attributes for polar plots.

[apalugniok]

Issue to keep track of which attributes don't work with polar plots.

GR:

• [ ] log scales. Also the ticks for log scales aren't labelled properly, this is because in gr_polaraxes() gr_text() is used to label the ticks. A tick of the form "10^2" will get dispatched to GR.text() instead of GR.textext().
• [ ] yflip
• [ ] xflip It mirrors the plot in the vertical but it'd expect the angular axis to go clockwise for xflip = true
• [ ] annotations aren't placed according to polar coordinates

PyPlot:

• [ ] yflip
• [ ] xflip
• [ ] log scales. Throws an error

Plotly:

• [ ] Ticks cannot be manually set
• [ ] yflip
• [ ] xflip
• [ ] log scales

PGFPlots:

• [ ] yflip
• [ ] xflip Same as GR
• [ ] log scales. Throws an error

[mkborregaard]

Thanks a lot! I've added checkboxes for easy tracking.

[niczky12]

Not sure if this is best place to comment on this, but I found that annotate! acts weirdly on polar coordinates.
If I use pyplot() and proj=:polar all works fine and I can annotate using the original coordinates. However, if I use gr() I get weird positions for my annotations.

Here's some code to illustrate:

using Plots
gr()
plot(x->x^2, 1:100, proj=:polar)

annotate!(0.5,0, text("hello!"))
annotate!(-0.5,-1, text("hello!"))

pyplot()
plot(x->x^2, 1:100, proj=:polar)
annotate!(10,100, text("hello!")) # where I want it

If this is not the right place to raise this, let me know and I can open a separate issue. Or just tell me if that's not how I'm supposed to use it. :)

[apalugniok]

Seems like PyPlot is using polar coordinates to place the annotations as would be expected. But GR uses an xy coordinate system with limits (-1,1) to place annotations. I agree it's weird I'll add it to the list and hopefully look into it soon 😄