idea Support for 3D analysis in the nearest point/vertex operation in ArcGIS Maps SDKs Native Ideas https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idi-p/1015375 <P>Currently, the nearest point operation does not support three-dimensional analysis. We in our mobile application deal with a lot of three-dimensional data and often use the nearest coordinate method of the <STRONG>GeometryEngine. </STRONG>Since obtaining the altitude of the nearest point from an input geometry is critical to us, we resort to a lot of hacks to obtain the z-value of the resultant co-ordinate after using the nearest coordinate/vertex method.&nbsp; It would be great if such methods of the GeometryEngine supported the three-dimensional analysis of the input data.</P> Sun, 10 Jan 2021 15:27:26 GMT SarthakMishra 2021-01-10T15:27:26Z Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idi-p/1015375 <P>Currently, the nearest point operation does not support three-dimensional analysis. We in our mobile application deal with a lot of three-dimensional data and often use the nearest coordinate method of the <STRONG>GeometryEngine. </STRONG>Since obtaining the altitude of the nearest point from an input geometry is critical to us, we resort to a lot of hacks to obtain the z-value of the resultant co-ordinate after using the nearest coordinate/vertex method.&nbsp; It would be great if such methods of the GeometryEngine supported the three-dimensional analysis of the input data.</P> Sun, 10 Jan 2021 15:27:26 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idi-p/1015375 SarthakMishra 2021-01-10T15:27:26Z Re: Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044252#M200 <P><a href="https://community.esri.com/t5/user/viewprofilepage/user-id/434897">@SarthakMishra</a>&nbsp;Assuming I understand your question correctly, is it possible to use the `getLocationFromPoint()` async method to get your z value once you have your ground coordinate. Let me know if that helps.&nbsp;</P> Tue, 06 Apr 2021 18:03:41 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044252#M200 KoushikHajra 2021-04-06T18:03:41Z Re: Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044268#M201 <P><a href="https://community.esri.com/t5/user/viewprofilepage/user-id/355965">@KoushikHajra</a>&nbsp;Correct. For example,&nbsp;the <STRONG>nearestPoint</STRONG>&nbsp;method when used to find the nearest point in a bunch of points does not contain the <STRONG>z-value</STRONG></P> Tue, 06 Apr 2021 18:21:01 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044268#M201 SarthakMishra 2021-04-06T18:21:01Z Re: Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044275#M202 <P>So, can you try <A href="https://developers.arcgis.com/android/api-reference/reference/com/esri/arcgisruntime/mapping/Surface.html#getElevationAsync(com.esri.arcgisruntime.geometry.Point)" target="_self">this</A>&nbsp;method and see if that saves you from the hacks?&nbsp;&nbsp;</P> Tue, 06 Apr 2021 18:29:27 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044275#M202 KoushikHajra 2021-04-06T18:29:27Z Re: Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044283#M203 <P><a href="https://community.esri.com/t5/user/viewprofilepage/user-id/355965">@KoushikHajra</a>&nbsp;So we have a multipoint geoJson data set which contains z-values in them. Using the <STRONG>nearestCoordinate</STRONG> on that does not return the z-index value. I believe the link you have shared expects a map surface (Layer) to be present to obtain the elevation. Would it work for our case as well? Thanks anyway for replying!</P> Tue, 06 Apr 2021 18:37:02 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044283#M203 SarthakMishra 2021-04-06T18:37:02Z Re: Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044285#M204 <P>I see. I was working on some assumptions. Yes, the expectation is that you need to have a surface and I was assuming that you have it already since you're in 3D. If you do, then yes, it should work.&nbsp;</P> Tue, 06 Apr 2021 18:40:07 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044285#M204 KoushikHajra 2021-04-06T18:40:07Z Re: Support for 3D analysis in the nearest point/vertex operation https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044286#M205 <P>Yeah, is there any other way to obtain the 3D value from an existing geo json data set? Thanks.</P> Tue, 06 Apr 2021 18:41:27 GMT https://community.esri.com/t5/arcgis-maps-sdks-native-ideas/support-for-3d-analysis-in-the-nearest-point/idc-p/1044286#M205 SarthakMishra 2021-04-06T18:41:27Z