Full handling of minZoom / maxZoom

[gberaudo]

MinZoom and MaxZoom is only partially implemented.
See https://github.com/openlayers/ol-cesium/blob/master/src/olcs/core/OLImageryProvider.ts#L107-L132

Here are some hints for someone who would like to implement it:

• minZoom is not supported at the moment. Due to how Cesium works, it could be implemented by returning an empty canvas in https://github.com/openlayers/ol-cesium/blob/master/src/olcs/core/OLImageryProvider.ts#L268-
• maxZoom is partially implemented already. In addition to read the tilegrid we could read the maxZoom value of the layer.

[hy31337]

The example seems to be OLIImager;

but
After olcs converts the OpenLayer Vector layer with maxZoom and minZoom settings to a Cesium layer, the maxZoom and minZoom have no effect in Cesium.

Vue3
"ol": "^10.4.0",
"olcs": "^2.22.1",
"cesium": "^1.130.0",

import * as Cesium from 'cesium';
window.Cesium = Cesium;
import 'cesium/Build/Cesium/Widgets/widgets.css';
import OLCesium from 'olcs';

let ol3d = new OLCesium({ map: this.olMap });

var stationSource = new VectorSource();
var stationVector = new VectorLayer({
name: 'stationVector',
zIndex: 999,
visible: true,
source: stationSource,
minZoom: 7,
maxZoom: 17,