Georeferencing cad files in arcgis 10.1

Auto Adjust Check this box to adjust the raster to immediately show the transformation, after each link is chosen. Transformation This drop-down menu allows you to choose a valid transformation. Link Table buttons described. Georeferencing keyboard shortcuts While you are georeferencing, there are several keyboard shortcuts available to help you perform your task easily and quickly. Related Topics Georeferencing a raster to a vector.

Fundamentals of georeferencing a raster dataset. Entering specific x,y coordinates when georeferencing. Keyboard shortcuts in ArcMap. Update Georeferencing. Saves the transformation with the raster. Creates a new transformed raster dataset. Fit To Display. Update Display. Auto Adjust. Flip or Rotate. Corrects for common scanning distortions.

Delete Control Points. Deletes all the control points. Reset Transformation. Add Control Points. Auto Registration. Select Link. Selects and highlights a link within the display. Zoom To Selected Link. Delete Link. Deletes the selected link.

View Link Table. Shows links and errors in tabular form. From point symbol. To point symbol. Inverse Residual. Forward-Inverse Residual. Auto complete. Zoom In. Zoom Out. Full Extent. Fixed Zoom In. Fixed Zoom Out. Go Back To Previous Extent. Go To Next Extent. The methods you use and the order in which you perform them can vary depending on your data.

Georeferencing a single CAD feature layer applies that transformation to the entire dataset. Once you have georeferenced a CAD feature layer, you can add the other feature classes of that dataset to the map and they will be constrained by the same control points. To display the tab, select a child feature layer in the CAD group layer.

Assigning a spatial reference is a best practice for producing an accurate transformation. If the CAD drawing's origin coordinate 0,0,0 is significantly different than that of the map projection in your data frame, the CAD dataset may be added outside your data extent. Saving the map document after using this command saves the control points in the map. This command is also useful to preview a transformation followed by the Reset Transformation command.

Choose a georeferencing layer All commands and tools on the toolbar act on the CAD feature layer you select from the drop-down list. Move the dataset to the current view If the CAD drawing's origin coordinate 0,0,0 is significantly different than the map projection in your data frame, the CAD dataset may be added outside your data extent.

Rotate, shift, or scale the dataset In some cases, nudging the dataset into place before adding control points can help you complete the task more quickly. Add control points Adding control points is the best method for controlling the precision of your georeference. Apply the transformation After adding control points manually, or loading them from a world file, you have two ways of applying the transformation and georeferencing the dataset—both commands are available from the drop-down menu.

Related Topics Managing links and control points. Loading control points from a world file. This data can be used to drive symbology and labels, queried and used as filtering criteria for visualization tasks, and computed as feature data. This information is defined as a text string in the well-known text WKT format and stored in an auxiliary projection.

To get around this limitation, ArcGIS for Desktop extends the properties of a CAD dataset to include georeferencing control points as ancillary information. This information is defined as from-to coordinates and stored in an auxiliary world. Standard feature classes All CAD feature datasets display a standard set of five feature classes, one for each supported shape type. Attribute tables Each CAD feature class supports a virtual attribute table.