Coordinate systemsĭata is defined in both horizontal and vertical coordinate systems. Identifying this measurement system is the first step to choosing a coordinate system that displays your data in its correct position in ArcGIS Pro, in relation to your other data. The coordinates can be specified in many different ways, such as decimal degrees, feet, meters, or kilometers any form of measurement can be used as a coordinate system. These numbers are part of a coordinate system that provides a frame of reference for your data, to locate features on the surface of the earth, to align your data relative to other data, to perform spatially accurate analysis, and to create maps.Īll spatial data is created in a coordinate system, whether it is points, lines, polygons, rasters, or annotation. Spatial data is similar, but it also includes numerical information that allows you to position it on earth. You will need to add this new Map Layer to your map and/or Geodatabase, and remove the old Map Layer that uses the incorrect Coordinate System.Data usually comprises an array of numbers.
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Then click OK twice.īy changing the name of the Shapefile/Map Layer in the Projection process, you've created a new Map Layer/Shapefile with the desired Coordinate System. Click the Apply button to apply the chosen Coordinate System.Once you've selected the desired Coordinate System, you'll be taken back out to the Spatial References Properties dialog box. Choose the correct Coordinate System from the available options and appropriate region.Catherine Riihimaki at x3349 or via email. For assistance in chosing a Coordinate System, contact Dr.Choose the Projected Coordinate System folder or the Geographic Coodinate System folder, depending upon the Coordinate Systems of your other files and how you want to match them.
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The Browse for Coordinate System dialog box will appear. The Spatial References Properties dialog box will appear.
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Choose Properties at the bottom of the pop up menu. Right click on the title of your Map Layer in the Table of Contents of ArcMap.
#HOW TO DETERMINE PROJECTION OF ARCGIS FILE HOW TO#
The following directions will walk you through the process of checking your Map Layers/Shapefiles to find out which Coordinate System they are using and how to change them if they are different. In order for multiple map layers to work properly together, they must all use the same Coordinate System. You are invited to leave comments or ask questions in any of the Comment areas of each tutorial page. If you find these tutorials useful and would like to link to them from your own pages,please contact the Drew Spatial Data Center Director, Dr.