View on GitHub Sample viewer app

Specify a map’s spatial reference.

Image of map spatial reference

Use case

Choosing the correct spatial reference is important for ensuring accurate projection of data points to a map.

How to use the sample

Pan and zoom around the map. Observe how the map is displayed using the World Bonne spatial reference.

How it works

  1. Instantiate an ArcGISMap object using a spatial reference e.g. ArcGISMap(SpatialReference.create(54024)).
  2. Instantiate a Basemap object using an ArcGISMapImageLayer object.
  3. Set the base map to the map.
  4. Set the map to a MapView object.

The ArcGIS map image layer will now use the spatial reference set to the ArcGIS map (World Bonne (WKID: 54024)) and not its default spatial reference.

Relevant API

  • ArcGISMap
  • ArcGISMapImageLayer
  • Basemap
  • MapView
  • SpatialReference

Additional information

Operational layers will automatically project to this spatial reference when possible.

Tags

project, spatial reference, WKID

Sample Code

module-info.java module-info.java MapSpatialReferenceSample.java
/*
* Copyright 2022 Esri.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
module com.esri.samples.map_spatial_reference {
// require ArcGIS Maps SDK for Java module
requires com.esri.arcgisruntime;
// handle SLF4J http://www.slf4j.org/codes.html#StaticLoggerBinder
requires org.slf4j.nop;
// require JavaFX modules that the application uses
requires javafx.graphics;
exports com.esri.samples.map_spatial_reference;
}