goTo, zoom out a bit

JasonWood — Wed, 06 Mar 2024 04:06:58 GMT

I am using view.goTo to go to an array of geometries (which happen to be the same as all the polygons drawn on a graphics layer `graphicsLayerParcelHighlight`)

The problem is that if I don't specify a zoom level, it's zoomed in too much. I want to back out around 2 or 3 zoom levels from whatever it would be otherwise.

I think I could work out how to expand each of the geometries in the array, but I'm not sure if that's the most sensible way. I'm a beginner.

view.whenLayerView(graphicsLayerParcelHighlight).then(() => {
view.goTo({
target: parcelGeometryArray,
zoom: 16
});
});

Re: goTo, zoom out a bit

JoelBennett — Tue, 19 Mar 2024 18:01:40 GMT

You can get the extent of all the graphics, and then expand it a bit:

var extent = null; graphicsLayer.graphics.forEach(function(graphic) { if (graphic.geometry.type == "polygon") { if (extent === null) extent = graphic.geometry.extent.clone(); else extent.union(graphic.geometry.extent); } }); if (extent !== null) view.goTo(extent.expand(1.5));

topic goTo, zoom out a bit in ArcGIS JavaScript Maps SDK Questions

goTo, zoom out a bit

Re: goTo, zoom out a bit