IssueTracker

With the new DDS (Data-driven styling) we have the possiblity to style a given area.

One thing that I have seen frequently in Stack overflow questions is to have a styled polygon covering the whole world, and some areas excluded from the overlay.

Example questions:

• https://stackoverflow.com/questions/28126462/country-specific-zoom-level-in-google-maps-api
• https://stackoverflow.com/questions/54637798/how-to-display-a-specific-city-on-google-maps-api
• https://stackoverflow.com/questions/21328498/google-maps-remove-labels-or-grayout-area-except-some-regions
• https://stackoverflow.com/questions/73678176/highlighting-for-two-countries-google-maps-api

One could (partially) achieve that with DDS by doing the following:

// Apply the style to everything except a single boundary.
featureLayer.style = (options) => {
  if (options.feature.placeId != "ChIJYW1Zb-9kjEcRFXvLDxG1Vlw") {

    // Above Place ID is Switzerland
    return featureStyleOptions;
  }
};

Note the use of != which will apply the style to every feature, except Switzerland.

But this has 2 major flaws:

1. It won't apply any overlay over oceans/seas
2. It won't apply any overlay over countries which are currently not covered by DDS (Ukraine, Russia, Argentina, etc.)

It would be great if we could either:

1. Apply an overlay to the whole world and just exclude 1 country (or other area) or
2. Be able to get the feature boundaries (polygon path) so that we can manually draw a hole in a larger polygon.

This would allow developers to be able to achieve this without the use of external resources.

Example fiddle styling all features (countries) except Switzerland (highlighting the issues I mentioned above).