Allow "None" and color values for basemaps

[makella]

Context

There will be times where a user may not want a basemap and/or would want to add their own layer of contextual geography.

Since basemaps are Mapbox GL, should we have some sort of "helper" for no basemap? I'm assuming this would default to white or black with an option available to change the color.

[ ] Empty basemap

Allows to display a map without basemap

Map(
    [Layer(Dataset('populated_places')], 
    context=context,
    basemap=None
)

[ ] Color basemap

Use a single background color

Map(
    [Layer(Dataset('populated_places')], 
    context=context,
    basemap='#FABADA'
)

[andy-esch]

I added support beyond our basemaps in the original vmap function: https://cartoframes.readthedocs.io/en/stable/contrib.html#cartoframes.contrib.vector.vmap It takes a dictionary of a mvt source and an optional token (mostly for mapbox maps).

I also opened this a while back but didn't write much: #509

[andy-esch]

I also want a mvt source for mars terrain

[makella]

oops sorry didn't realize there was already an open issue! if you prefer, we can close this or vice-versa. Regardless I really like the idea of the no basemap option and adding other basemaps (including Mars) :)

[andy-esch]

I'll close the other as this already has more content. But I agree 100% that no basemaps means users can be more creative on visualizations. It also means more art can happen, which is something I'd love to see in cartoframes :)

[elenatorro]

+1 🎉

[andy-esch]

I also wonder if just letting basemap=False or basemap=None is all we need instead of a helper.

[elenatorro]

I'd go for:

• basemap=False for no basemap
• basemap='#FABADA' to set the color

[makella]

like!!

[Jesus89]

Hi!

I have made research in the MGL API. These are the map styles we need to use in these cases:

basemap=False

style: {
  'version': 8,
  'sources': {},
  'layers': []
}

basemap='#0F0'

style: {
  'version': 8,
  'sources': {},
  'layers': [{
      'id': 'background',
      'type': 'background',
      'paint': {
        'background-color': '#0F0'
      }
  }]
}

[makella]

niiiiice!!

[Jesus89]

I have implemented basemap= None, True, False, 'string color'.