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Double-click the Projected Coordinate System name in the top box that is assigned to the ArcMap Data Frame. Go to View > Data Frame Properties > Coordinate System tab.It is helpful to write down these measurements on a piece of paper with a direction arrow, indicating the direction the CAD data must move to align with the other data.
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Repeat for the reference data if necessary, or if the Marker symbol is not visible.
#DOUBLE CHECK ARCGIS FILE WITH MAP FULL#
Drop a Marker symbol from the Drawing toolbar on the data, and zoom to the full extent. If the data cannot be seen, right-click the name of the layer in the Table of Contents, and select Zoom to Layer. In this procedure, the Measure tool is used to determine the amount of horizontal and vertical offset to set the False Easting and False Northing parameters. Click the Full Extent button, and use the Measure tool to measure horizontally the distance the CAD polylines lie away from the data in the real-world coordinate system (in the east-west direction only.) Do not measure diagonally.Double-click the name of the CAD file, and select the Polyline layer to add it to the map. In the Add Data dialog, navigate to the folder where the CAD data resides on the computer. Add only the polyline layer from the CAD file to the map.This data must have a projection defined, and the data units must match the units (feet or meters) used when creating the CAD file. Open ArcMap with a new blank map, and add the data the CAD file is supposed to align with.Procedureįollow these steps in ArcMap to align a CAD file (AutoCAD DWG or Microstation DGN) with other data by creating a custom projection file. Reference data must be in a projected coordinate system with units of feet or meters. These instructions cannot be used to align CAD data with data in a Geographic Coordinate System, with units of decimal degrees. For 10.0 and previous versions, please see Knowledge Base article 32939. These instructions apply to ArcGIS versions 10.1 through 10.2.2.
#DOUBLE CHECK ARCGIS FILE WITH MAP HOW TO#
The instructions provided describe how to create a custom projection file for CAD data, and how to align the CAD file with other data in a projected coordinate system with units of feet, meters, or other linear units in ArcMap 10.1 and above. How To: Create a custom projection file to align CAD Data in ArcMap 10.1 and above Summary