Improve category support for layers

WorldWindEarth / worldwind-react-globe

A React component for interacting with the Web WorldWind virtual globe SDK from NASA and ESA

https://worldwind.earth/worldwind-react-globe/

MIT License

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Closed emxsys closed 6 years ago

emxsys commented 6 years ago

Improve the support for layer categories :

The order addLayer is called should define the draw order of layers within their category. I.e., addLayer should add the layer to the end of its category, inserting it into the overall layer list if necessary.
A defaultCategories array should define the draw order of the categories themselves.

emxsys commented 6 years ago

Added support to insert a layer into the layer list based on category. If no category is given then the base category is assigned to the layer.