Hovered features are not surfaced above surrounding features

[mz8i]

When hovering over a map feature, e.g. a power line, the feature is highlighted but it's ordering in relation to neighbouring features stays the same. As a result, if there are any features that overlap with the highlighted one, part of the feature might not be visible when hovering

Other libraries like Leaflet have an option such as riseOnHover - need to investigate how to achieve this mechanism with Deck.GL

[tomalrussell]

Is this closed after nismod/infra-risk-vis#35 or still an issue?

[mz8i]

Separate issue, as the hover highlight relies on deck.gl's autoHighlight.

See example using power lines:

hovered:

selected:

Whether it's a priority is another topic!

[mz8i]

With some more work, the new mechanism we're using for selection highlight could be used for hover highlight, too. This would eliminate the above problem.

But performance might be an issue then, as the selection layer needs to run some computation on all visible features, whenever the selected feature changes. If that had to happen every time the hovered feature changes, we could run into performance issues.
Conversely, the built in autoHighlight mechanism is much simpler to ensure performance