To assign an object class to an input
- Click Insert tabImport
- In the Import dialog box,
review the settings in the Object Class column.
make selections in the Object Class
first define object classes in the AutoCAD Map 3D drawing. If there
are no object classes defined, the fields in the Object
column are grayed-out. For more information, see Setting Up Object Classification
- For each layer in the incoming file,
click in the Object Class field.
- Select an object class.
- Click to map
incoming attribute data to the AutoCAD Map 3D object class definition.
- In the Object Class Attribute Mapping dialog box,
verify that the object class you just selected is highlighted in
the Select An Object Class list.
- On the right, review the Input
Fields list, which displays the incoming attribute data
fields that are available to be mapped to Target Fields in
the object class definition.
- For each Input Field to
map, click the down-arrow under Target Fields, and
select a target field in the object class definition. The syntax
used for the target field is:
- CATEGORY — Type of data, for
example "OD" for object data, or "LT" for link template (linked
- TABLE — Object data table name
or database table name.
- FIELD — Data field name.
After you map a target field, it no longer appears
in the Target Fields list. This ensures
that each target field is mapped to only one incoming data field.
- Map as many of the Target
Fields as needed. If there are no more target fields
in the Target Fields list, you've
mapped them all. If you do not map a target field, the default object
class value is used.
- Click OK to close
the Object Class Attribute Mapping dialog
- To use object class default values for
incoming data values that are not within the specified object class
range, select Use Class Defaults For Out Of Range Values.
Properties such as Layer and Color are
This ensures that incoming
data will be accurately classified but may require AutoCAD Map 3D to
change some of the incoming data values.
- If you are importing points and have
assigned them to an object class with a creation method of Blocks,
use the Points column to convert the
points to blocks so that the objects can be classified. Object classification
does not convert points to blocks for you. For more information,
see To specify how to import points.
- To copy the object class names and attribute
mapping settings from one layer to another, right-click in the Object
Class field to copy. Click Copy. Then
right-click in the field in the target layer and choose whether
to paste the object class name or attribute mapping. To copy to
all other layers, right-click and choose whether to paste the name
or the attribute mapping to all layers. If attribute mapping conflicts
are detected, the paste attribute mappings options is not available.