topic Re: Adding multiple geometries of different types - Polygon and multipolygon on the map in ArcGIS JavaScript Maps SDK Questions

Adding multiple geometries of different types - Polygon and multipolygon on the map

DivyaArora — Wed, 14 Feb 2024 09:52:55 GMT

I am trying to add multiple geometries of different types - polygon and multipolygon on the map. For this I have used Graphicslayer.

While creating the graphic object I am using "polygon" as the Geomtery type for POLYGON geometry but if we have a MULTIPOLYGON geometry, then what type should i pass in the geometrytype ?

Refering the Geometry , it does not give any option for Multupolygon

Re: Adding multiple geometries of different types - Polygon and multipolygon on the map

jauhari_mani — Wed, 14 Feb 2024 10:09:18 GMT

Hi @DivyaArora ,

You can consume GeoJSON layer in case of MultiPolygon Geometry as mentioned in their documentation.

GeoJSONLayer | API Reference | ArcGIS Maps SDK for JavaScript 4.28 | ArcGIS Developers

There is no explicit mention of MultiPolygon in case of graphic layer.

Re: Adding multiple geometries of different types - Polygon and multipolygon on the map

DivyaArora — Wed, 14 Feb 2024 10:28:49 GMT

Geojson layer accepts only single type of geometry.

Re: Adding multiple geometries of different types - Polygon and multipolygon on the map

EmilyGoldsmith — Wed, 14 Feb 2024 16:53:28 GMT

Could you use the .push() function to add new graphics into one, main GraphicsLayer?

Example here: https://developers.arcgis.com/javascript/latest/api-reference/esri-core-Collection.html#push

// Adds a new graphic to the end of the graphics collection on a GraphicsLayer graphicsLyr.graphics.push(newGraphic); // Adds three new graphics to the end of the GraphicsLayer's graphics collection graphicsLyr.graphics.push(g1, g2, g3);