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How to do it...

  1. Start ArcGIS Pro if you closed it at the end of the last recipe, and open the Using CAD Data.aprx project located in C:\Student\ArcGISProCookbook\Chapter2\Using CAD Data.
  2. In the Catalog pane, located on the right of the ArcGIS Pro interface, expand Folders by clicking the small arrowhead to the left of the word Folders.
  3. Expand the Chapter 2 folder so you can see its contents.
  1. Locate the Subdivision_NAD83.dwg file. It should have a blue icon with a compass on it.

CAD files will have one of three file extensions: DWG, DXF, or DGN. Like shapefiles and geodatabase feature classes, they too are vector data.

DWG is the native format for Autodesk’s AutoCAD-based product line. This includes AutoCAD, Map 3D, and Civil 3D. DWG files can also be created using other competitor applications, such as IntelliCAD or TurboCAD.

DXF files are also an AutoCAD format. They are used to share data with other CAD applications that do not natively use the DWG format.

DGN is the native format for Bentley’s Microstation product line. Microstation is the primary competitor to AutoCAD. In the United States, Microstation is used by the Department of Transportation and the Department of Defense.

As far as ArcGIS Pro is concerned, these files all work the same. So the workflow you will examine using a DWG file will also apply to DXF and DGN files.

  1. Expand the Subdivsion_NAD83.dwg file.
  2. Notice that the drawing file contains multiple feature classes, including Annotation, MultiPatch, Point, Polyline, and Polygon.
  3. Select the Subdivision_NAD83.dwg file. Drag and drop it into the Trippville map view.
  1. Right-click the Subdivision_NAD83-Polygon Group and select Zoom to Layer.

Your map should now look like the following image:

Map zoomed to Subdivision_NAD83-Polygon Group

You have just added an entire AutoCAD drawing file to your map. The drawing file shows a new subdivision that is going to be built in the City of Trippville. Now you will explore the drawing you just added to the map.

You could have added the individual feature classes instead of the entire drawing. In general, it is best to only add the data you need to your map. Otherwise you can become overloaded with information.

  1. Expand the Subdivision_NAD83 – Polyline Group layer in the Contents pane.
Question: What layers are included in the group Polyline Group layer?


Answer:
  1. Click the symbol located beneath the Parcels layer in the Polyline Group layer to open the Symbology pane.
  2. Make sure the Properties tab is selected in the Symbology pane.
  3. Click the drop-down arrow located next to Color and select Black. Then click Apply
  4. Now change the line width from 1.5 to 1, and click Apply.

Even though DWG files are not native to ArcGIS Pro, you can still display them and adjust some of their properties.

  1. Close the Symbology pane.
  2. Click the Map tab in the ribbon and activate the Explore tool.
  3. Make sure the Parcels layer in the Polyline Group layer is still selected.
  4. Click the drop-down arrow below the Explore tool and select Selected in Contents:
  1. Click one of the lines in the Parcels layer in the map to open the informational window that displays information about the line you clicked:

As you can see, even though a drawing file is not in an Esri format, it also includes attribute data just like a shapefile or geodatabase feature class. In ArcGIS Pro, you can use these attributes just as you can those associated with data stored in an Esri format.

  1. If you are planning to continue on to the next recipe, save your project and keep ArcGIS Pro open. If you are not continuing, you should save your project and close ArcGIS Pro.
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