Min Max extent not working??

CliveSwan — Wed, 18 Aug 2021 11:34:34 GMT

Greetings,

I am using the ESRI JS API 4.2

I am trying to use BNG grid coordinates for the Min/Max extent, and centre.

The map defaults to the world view, not UK extent?? I cannot see why it is not working??

This is the JS script:

const view = new MapView({ container: "viewDiv", map: map, center: [506032.00000, 194447.000000], //zoom: 15, scale: 50000, extent: { // autocasts as new Extent() xmin: 53976.3289500004, // 318351.6994, ymin: 633750.0000, // -5.6914500001, xmax: -168200.0000, // 571833.3974, ymax: 117983.0000, // 657535.9723, spatialReference: 27700 } });

I added the following that was listed as a solution in another posting... Still doesn't work??

view.when(() => { //view.goTo(layer.fullExtent); // this works too view.extent = layer.fullExtent; });

Map extent

I am using BNG (27700), not WGS84. So I don't see why the centre, extent and zoom is not honoured?? I would appreciate any pointers.

Thanks,

Clive

Re: Min Max extent not working??

ReneRubalcava — Wed, 18 Aug 2021 14:52:56 GMT

You can set the spatialReference on the MapView https://developers.arcgis.com/javascript/latest/api-reference/esri-views-MapView.html#spatialReference but your basemap also needs to match. The default esri basemaps are all web mercator and can't be reprojected.

topic Min Max extent not working?? in ArcGIS JavaScript Maps SDK Questions

Min Max extent not working??

Re: Min Max extent not working??