Mapbox GL JS vector tiles show in higher zoom level without enough vector tiles

Question

If I have a set of vector tile files that only available to max zoom at 16, how can I show it on the map at zoom 17 or even 18?

Because of the cause of the data, or the amount of the vector tiles in a layer at a zoom level , my vector tiles generating speed is slow or generated vector tiles is unavailable because it may effect the display of the other layers. That is, I may unable to generated enough vector tiles when I needed them.

My map setting:

map = new mapboxgl.Map({
                container: "gmap",
                zoom: 8,
                center: [120.685296,24.136738],
                style: {
                    "version": 8,
                    "layers": [
                        {
                            "id": "TempBaseMap",
                            "type": "background",
                            "paint": {
                                "background-color": "#C0C0C0"
                            },
                            "minzoom": 8
                        }
                    ],
                },
                maxZoom: 18,
                localIdeographFontFamily: "'Microsoft Jhenghei'",
                logoPosition: "top-left"
            });

And I want to add this vector tiles to a layer...

map.addLayer({
                    "id": "Road",
                    "source": {
"type":"vector",
"tiles":["http://(my local machine)/Road/{z}/{x}/{y}.pbf"]
},
                    "source-layer": "Road",
                    "type": "line",
                    "maxNativeZoom": 18,
                    "layout": {"visibility":"visible"},
                    "paint": {},
                    "minzoom": 8
                });

maxNativeZoom seems works with mapbox.js but I feel that it didn't work with mapbox GL JS.

Answer 1

As said by @AndrewHarvey

In you tile-source add maxzoom

"source": { "maxzoom": 16,//add this line "type":"vector", "tiles":["http://(my local machine)/Road/{z}/{x}/{y}.pbf"] }

Setting max zoom level in source will tell mapbox-gl to over zoom after that zlevel else it will query for the source at all zoom levels

Answer 2

Normally you build vector tiles to level 14 as the max and mapping software overzooms with no loss in quality. Usually there is no value producing data at lower zoom levels even assets or utilities show fine at 14 is max zoom. Parcels and buildings.