Improve the colorbar example #595

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1. seisman

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   documentationImprovements or additions to documentationImprovements or additions to documentation

   on Sep 10, 2020
2. weiji14 commented on Sep 10, 2020

   

   weiji14

   on Sep 10, 2020

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   Oo, those warnings definitely aren't nice to have, and yes, the example could definitely look a bit nicer, I got carried away with the different positioning methods at #373

   1. calling colorbar with very few arguments, using the default location and default size

   From memory, I don't think there's a default position and/or box (unlike legend which does). Will probably need to wrap in a few more long aliases to fig.colorbar to make this easier.

   2. the easiest way (using J) to plot colorbars outside the basemap.

   Yes, this would be good to show.

   Maybe we could reproduce (a subset) of the colorbars plotted at https://docs.generic-mapping-tools.org/latest/cookbook/cpts.html?
3. seisman commented on Sep 10, 2020

   

   seisman

   on Sep 10, 2020

   Last edited by seisman

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   From memory, I don't think there's a default position and/or box (unlike legend which does). Will probably need to wrap in a few more long aliases to fig.colorbar to make this easier.

   There are defaults. Try this example:

   import pygmt
   
   fig = pygmt.Figure()
   fig.basemap(region="0/10/0/10", projection="X10c/10c", frame=True)
   fig.colorbar(cmap="vik", frame=True)
   fig.savefig("map.pdf")

   However, I still don't like this one, because usually, what we do is calling makecpt to create a "current" cpt, plot some thing, and then calling colorbar without using cmap.
4. weiji14 commented on Sep 10, 2020

   

   weiji14

   on Sep 10, 2020

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   From memory, I don't think there's a default position and/or box (unlike legend which does). Will probably need to wrap in a few more long aliases to fig.colorbar to make this easier.

   There are defaults. Try this example:

   import pygmt
   
   fig = pygmt.Figure()
   fig.basemap(region="0/10/0/10", projection="X10c/10c", frame=True)
   fig.colorbar(cmap="vik", frame=True)
   fig.savefig("map.pdf")

   However, I still don't like this one, because usually, what we do is calling makecpt to create a "current" cpt, plot some thing, and then calling colorbar without using cmap.

   Ah ok, then we should definitely show that this default position/style exists. I've opened a PR at #596, feel free to experiment on that branch or offer suggestions.
5. weiji14

   closed this as completedin #596on Sep 27, 2020