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How does a filter work in Mapbox style?
filter In the Mapbox Style Specification, a filter is a property at the layer level that determines which features should be rendered in a style layer. Filters are written as expressions, which give you fine-grained control over which features to include: the style layer only displays the features that match the filter condition that you define.
How to add a Mapbox-GL-JS layer in OpenLayers?
Consult the API documentation to see what is supported in the latest release. Example of a Mapbox-gl-js layer integration. Show how to add a mapbox-gl-js layer in an OpenLayers map. Note: Make sure to get your own API key at https://www.maptiler.com/cloud/ when using this example.
What does a fill layer do in Mapbox?
A fill style layer renders one or more filled (and optionally stroked) polygons on a map. You can use a fill layer to configure the visual appearance of polygon or multipolygon features.
How to use ol Mapbox style with tiles?
Example of using ol-mapbox-style with tiles from maptiler.com. Note: Make sure to get your own API key at https://www.maptiler.com/cloud/ when using this example. No map will be visible when the API key has expired.
How to add an icon to a Mapbox style?
The icon-image used in this example comes from the Mapbox Light style’s sprite. To view all available images in a style’s sprite or add additional images, open the style in Mapbox Studio and click the Images tab. To add a new image to the style at runtime see the Add an icon to the map example.
How are filters written in the style layer?
Filters are written as expressions, which give you fine-grained control over which features to include: the style layer only displays the features that match the filter condition that you define. Filters are called predicates in iOS and macOS.
How to write expressions in Mapbox GL JS?
Learn how to write expressions in Mapbox GL JS to style custom data based on a data property and by zoom level. A data expression is any expression that accesses feature data – that is, any expression that uses one of the data operators: get, has, id, geometry-type, properties, or feature-state.
What are the assertion operators in Mapbox GL JS?
A type assertion checks that the feature data matches the expected type of the data expression. If this check fails, it produces an error and causes the whole expression to fall back to the default value for the property being defined. The assertion operators are array, boolean, number, and string.
How are camera expressions used in a Mapbox?
These expressions change the appearance of a layer with the map’s zoom level. Camera expressions can be used to create the appearance of depth and to control data density. This example uses the interpolate operator to define a linear relationship between zoom level and circle size using a set of input-output pairs.
Where do I find the paint property in Mapbox?
Paint properties appear in the layer’s “paint” object. Changes to a paint property are cheap and happen synchronously. The background style layer covers the entire map. Use a background style layer to configure a color or pattern to show below all other map content.