To Specify Settings to Find Identical Points

During calculation, you identify points that have been measured more then once, for example from different stations. The Field Code List specifies the search rules for identical points. You can either find identical points by identifier, such as the point number, or by position. You configure the search using the options on the Calculation tab. For each field code you can specify whether to include the point in the search.

To define the search rules for identical points

  1. In the AutoCAD Map 3D Maintenance workspace, do one of the following:

    Click Insert tab > Survey panel > Survey.

  2. Click Project Manage.
  3. In the Manage Field Code List dialog box, click the Calculation tab.
  4. Select the field code. For each field code that you want to include in the search, select one or more of the following:
    • Identical—Select Identical, if you want to include the feature class into the search.
    • Identifier—Select Identifier, if you want to find identical points by point number.
    • Position—Select Position, if you want to find identical points by position.

      Tolerance—Enter a tolerance that specifies the search radius.

For example, when you search by point number, and two points with the same point number are found with the tolerance exceeded, a dialog box alerts you. See Critical Identical Point. When two points with the same point number are found, that lie within the tolerance, one of the points will be removed from the Coordinate - New Points tab. That means, only the remaining point will be introduced as unknown point to the adjustment. However the adjustment calculation will use all measurements to determine the final coordinates.