Every now and then I encounter a code like this:
var mapboxDrawStylesCustom = [ { 'id': 'custom-point-inactive', 'type': 'circle', 'filter': ['all', ['==', 'active', 'false'], ['==', '$type', 'Point'], ['==', 'meta', 'feature'], ['!=', 'mode', 'static'] ], 'paint': paintPropertyPoint } ]
I wonder about '$type'
accessor here. Like obviously it allows to grab the type of geometry. But I haven’t seen it mentioned anywhere in the docs. I personally need to access latitude/longitude of the Point geometry. According to documentation it is not something that Mapbox supports. However is it maybe possible somehow using this kind of dollar-sign syntax?
Advertisement
Answer
$type
is an older, deprecated expression. Its modern successor is ['geometry-type']
: https://docs.mapbox.com/mapbox-gl-js/style-spec/expressions/#geometry-type
AFAIK the older syntax doesn’t give you extra access to anything. So, no, you can’t access geometry coordinates that way.