angular中如何使用ArcGis ESRI地图

Question

Can someone help me how to plot latitude and longitudes on esri maps in angular please?

Answer 1

First thing first, you need to include the ArcGIS library in your angular project. For that you have two options:

1. using @arcgis/webpack-plugin , or
2. using esri-loader

This that I mentions plus both options are well documented in the ArcGIS documents ArcGIS Docs - Using the ArcGIS API for JavaScript with Angular .

Once you get your project running, you are ready to take the next step.

I am still not quite sure how are you retrieving the data. So the general answer in the API context would be:

1. If your data is in GeoJSON format, you can use GeoJSONLayer ( ArcGIS Docs - GeoJSONLayer )
2. If your data is in CSV format, you can use CSVLayer ( ArcGIS Docs - CSVLayer )
3. If your data is in KML format you can use KMLLayer ( ArcGIS Docs - KLLayer )
4. Finally, the general answer would be to use FeatureLayer and source attribute. The process in this case is to retrieve the data create the features (probably using esri/Graphic , esri/geometry/Point and esri/geometry/SpatialReference ), and then add it to the layer using applyEdits method.

One great thing of ArcGIS API (and ESRI's product in general) is that it has great documentation.