Support MultiLineString in plotly.graph_objs.Scattermapbox

When plotting multiple lines on a MapBox map, there are two options:

• Make an array of plotly.graph_objs.Data for every new line. Benefits: Each line has separate options for hover, compatible with NaNs in the data. Drawbacks: Does not scale, each line seems to be on a new map layer that needs to be loaded separately; thus very slow for large numbers of lines.
• Make one entry in plotly.graph_objs.Data, and pepper the data with NaNs. With connectgaps = False (default, I think) no line will be drawn across the NaNs, thus splitting the lines. Benefit: Scales well, all lines are on one layer. Drawbacks: No option to connect NaNs that may naturally occur in the data. Shared options like coloring or hover-information for all lines.

It would be nice to be able to draw multiple lines on one map layer without resorting to hacks. Bonus for allowing separate options for lines on the same map layer.

[OleMussmann]

@alexcjohnson That would be great, thanks a lot! Please let me know if you need help testing a version, or if you need sample code with which you can experience the performance drop.

[russ-schumacher]

sorry to raise an old thread, but is there an example of a solution to this issue somewhere? I’m having the same problem, where plotting many lines using scattergeo works fine, but using mapbox is extremely slow. thanks!