Show coordinates in multiple formats

View on GitHubSample viewer app

Format coordinates in a variety of common notations.

Images of Show coordinates in multiple formats

Use case

The coordinate formatter can format a map location in WGS84 in a number of common coordinate notations. Parsing one of these formats to a location is also supported. Formats include decimal degrees; degrees, minutes, seconds; Universal Transverse Mercator (UTM), and United States National Grid (USNG).

How to use the sample

Tap on the map to see a marker with the tapped location's coordinate formatted in 4 different ways. You can also put a coordinate string in any of these formats in the text field. Hit Enter and the coordinate string will be parsed to a map location which the marker will move to.

How it works

  1. Get or create a map Point with a spatial reference.
  2. Use one of the static "to" methods on CoordinateFormatter such as CoordinateFormatter.toLatitudeLongitudeOrNull(point = newLocation, format = LatitudeLongitudeFormat.DecimalDegrees, decimalPlaces = 4) to get the formatted string.
  3. To go from a formatted string to a Point, use one of the "from" static methods like CoordinateFormatter.fromUtmOrNull(coordinates = coordinateNotation, utmConversionMode = UtmConversionMode.LatitudeBandIndicators, spatialReference = null).

Relevant API

  • CoordinateFormatter
  • CoordinateFormatter.LatitudeLongitudeFormat
  • CoordinateFormatter.UtmConversionMode

Additional information

This sample uses the GeoViewCompose Toolkit module to be able to implement a Composable MapView.

Tags

convert, coordinate, decimal degrees, degree minutes seconds, format, geoviewcompose, latitude, longitude, toolkit, USNG, UTM

Sample Code

MainActivity.ktMainActivity.ktMapViewModel.ktCoordinatesLayout.ktMainScreen.kt
Use dark colors for code blocksCopy
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
/* Copyright 2023 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.
 *
 */

package com.esri.arcgismaps.sample.showcoordinatesinmultipleformats

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.runtime.Composable
import androidx.core.view.WindowCompat
import com.arcgismaps.ApiKey
import com.arcgismaps.ArcGISEnvironment
import com.esri.arcgismaps.sample.sampleslib.theme.SampleAppTheme
import com.esri.arcgismaps.sample.showcoordinatesinmultipleformats.screens.MainScreen

class MainActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        // authentication with an API key or named user is
        // required to access basemaps and other location services
        ArcGISEnvironment.apiKey = ApiKey.create(BuildConfig.API_KEY)
        // remove focus from text fields when keyboard closes
        WindowCompat.setDecorFitsSystemWindows(window, false)
        // set compose content
        setContent {
            SampleAppTheme {
                ShowCoordinatesInMultipleFormatsApp()
            }
        }
    }

    @Composable
    private fun ShowCoordinatesInMultipleFormatsApp() {
        Surface(color = MaterialTheme.colorScheme.background) {
            MainScreen(sampleName = getString(R.string.app_name))
        }
    }
}

Your browser is no longer supported. Please upgrade your browser for the best experience. See our browser deprecation post for more details.