https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250241#M79998 <P>Because the range of the extent is 4 points, it is different from the range drawn by the polygon. Is there a way to make them similar, or is there a way to convert a Polygon object to an Extent object?</P><P>I use BaseElevationLayer and I need to give it an extent, I want it to be the polygon that draws the blue part.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Wade_0-1674528730425.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/61021i0BBCDF9E76032310/image-size/medium?v=v2&amp;px=400" role="button" title="Wade_0-1674528730425.png" alt="Wade_0-1674528730425.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P><LI-CODE lang="javascript"> const CElevationLayer = BaseElevationLayer.createSubclass({ load: function () { this._elevation = new ElevationLayer({ // ElevationLayer Service }); this.addResolvingPromise( this._elevation.load().then(() =&gt; { this.tileInfo = this._elevation.tileInfo; this.spatialReference = this._elevation.spatialReference; this.fullExtent = this.fullExtent || this._elevation.fullExtent; }) ); return this; }, fetchTile: function (level, row, col, options) { return this._elevation.fetchTile(level, row, col, options).then( function (data) { // data return data; }.bind(this) ); } });</LI-CODE><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Tue, 24 Jan 2023 02:53:10 GMT Wade 2023-01-24T02:53:10Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250241#M79998 <P>Because the range of the extent is 4 points, it is different from the range drawn by the polygon. Is there a way to make them similar, or is there a way to convert a Polygon object to an Extent object?</P><P>I use BaseElevationLayer and I need to give it an extent, I want it to be the polygon that draws the blue part.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Wade_0-1674528730425.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/61021i0BBCDF9E76032310/image-size/medium?v=v2&amp;px=400" role="button" title="Wade_0-1674528730425.png" alt="Wade_0-1674528730425.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P><LI-CODE lang="javascript"> const CElevationLayer = BaseElevationLayer.createSubclass({ load: function () { this._elevation = new ElevationLayer({ // ElevationLayer Service }); this.addResolvingPromise( this._elevation.load().then(() =&gt; { this.tileInfo = this._elevation.tileInfo; this.spatialReference = this._elevation.spatialReference; this.fullExtent = this.fullExtent || this._elevation.fullExtent; }) ); return this; }, fetchTile: function (level, row, col, options) { return this._elevation.fetchTile(level, row, col, options).then( function (data) { // data return data; }.bind(this) ); } });</LI-CODE><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Tue, 24 Jan 2023 02:53:10 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250241#M79998 Wade 2023-01-24T02:53:10Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250253#M79999 <P>every polygon has a built-in "extent" property, which is what you need</P> Sun, 22 Jan 2023 16:22:14 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250253#M79999 MichaelLev 2023-01-22T16:22:14Z https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250284#M80003 <P>Hi&nbsp;<a href="https://community.esri.com/t5/user/viewprofilepage/user-id/36894">@MichaelLev</a>&nbsp; Sorry,question updated, my question may not have been expressed clearly.</P> Mon, 23 Jan 2023 02:16:46 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/convert-polygon-to-extent/m-p/1250284#M80003 Wade 2023-01-23T02:16:46Z