Description

Addminscale andmaxscale attributes to geo plots. These set the min and max scale extents for a plot (how far a user can zoom out/in). This PR supersedes#5192 which will be closed after this is merged.

• Resolvesallow user to set zoom/scale limits for choropleth maps #5191
• Closesadd support for min/max scale limits #5192

Changes

• Addsminscale andmaxscale attributes to geo plots. Defaults are 0 and -1, respectively.
• Enforces scale extents on zoom mouse events, mode bar button clicks
• Manually creates zoom event to enforce scale extents on first render (treating the middle of the plot as the zoom point)

Demo Video or Screenshot(s):

Before:

After:

Testing

• Start the dev dashboard withnpm start
• Search for a geo mock and load it (I usedgeo_legendonly)
• Zoom in and out and note how you can go as far as you want in either direction
• Edit the mock file and add the following attributes under the"geo" key
  • "minscale": 2
  • "maxscale": 4
• Reload the mock in the dashboard
• Note that the mock appears zoomed in upon first load
• Zoom in and out and note how you're now limited in how far you can go