Different applications may require different coordinate systems and ways of inputting coordinates, depending on the objective of your app.
The Coordinates service allows you to modify the Map Coordinates to control how they appear.
As there are a number of different tools and components within Web that rely on coordinates, you can configure the coordinates once in the Coordinates service and they auto-populate in all the relevant areas. This saves you from having to define the coordinates in each tool or component.
Field |
Description |
|---|---|
Coordinate Options |
A list of configuration options for displaying map coordinates in the application. •Add Coordinate Option: Add and configure a new coordinate option. •Title: The name of the configuration option, as it will appear throughout the app. •Coordinate Format: The format in which to display map coordinates throughout the app. •Precision: For LAT_LONG and XY coordinate formats, this value depicts the number of decimal places displayed. For MGRS and USNG coordinate formats, this value depicts the precision of the coordinates using an integer between 0 and 8 (inclusive). This property is not applicable to UTM coordinate formats. •Use Map Spatial Reference: When enabled, the map spatial reference will be Web Mercator if you are using Esri's default basemaps or other maps in this spatial reference. If you are using custom basemaps in other spatial references, the coordinates will auto-populate by default. When this option is disabled, you must provide the following: oWKID: Well-Known Identifier. It is a numerical identifier used to uniquely identify a spatial reference system. This value will take precedence if the Well-Known Text is also specified. oWell-Known Text: The string definition of a spatial reference. The WKID will take precedence if it is also specified. |
Active Coordinate Option |
The coordinate option the application uses to display formatted Map Coordinates. |
Datum Transformations |
Datum transformations refers to the process of converting spatial data from one coordinate system to another. You can define the set of transformations that will automatically be used when projecting from a given input spatial reference to a given output spatial reference. •Input WKID: The numerical identifier for the input spatial reference of the transformation. This value will take precedence if the Well-Known Text is also specified. •Input WKT: The string definition for the input spatial reference of the transformation. The Input WKID will take precedence if it also specified. •Output WKID: The numerical identifier for the output spatial reference of the transformation. This value will take precedence if the Well-Known Text is also specified. •Output WKT: The string definition for the output spatial reference of the transformation. The Output WKID will take precedence if it also specified. See Esri's Geographic Datum Transformations for more information. |
