How To: Edit Coverages Using a Digitizer

Procedure

Summary

Various procedures for editing coverages.

Procedure

To create a new coverage in the DAK without using any existing TIC/BND files from other coverages:

1. Start the DAK

2. Click File > Configure > Digitizer Test

3. Complete the digitizer test

4. Click File > Command Mode

5. Type the following at the command prompt:

Code:
   ARCEDITW
   DISPLAY 4
   COORDINATE DIGITIZER
   CREATE <new coverage name>

6. When the DAK prompts you for the Tic-ID, enter all values from the digitizer puck or from the Menu Bar on the digitizer. All Tic-IDs must end with the 'A' or '*' (star) button. The next button you press should be exactly on the TIC location to register that point. To end the Tic-ID registration enter a '0A' or '0*'.

7. When the DAK prompts you for the lower corner of the Mapextent Boundary, specify a location outside one of the lower TICs. When the DAK prompts you for an upper boundary, specify a point outside the TIC in the opposite corner of the lower boundary.

8. You may now continue to do your ARCEDIT session in the Command Mode of operation, or Quit and go into the GUI ARCEDITW mode.

To register an existing coverage using the ARCEDITW GUI:

1. Start the DAK

2. Click File > Open and select the desired coverage from the dialog box.

3. Click Special > check Type Digitizer and then click OK.

4. When the DAK prompts you for the Tic-ID, enter all values from the digitizer puck or from the Menu Bar on the digitizer. All Tic-IDs must end with the 'A' or '*' (star) button. The next button you press should be exactly on the TIC location to register that point. To end the Tic-ID registration enter a '0A' or '0*'.

5. When the DAK prompts you for the lower corner of the Mapextent Boundary, specify a location outside one of the lower TICs. When the DAK prompts you for an upper boundary, specify a point outside the TIC in the opposite corner of the lower boundary.

To Create a blank coverage with just a TIC/BND:

1. Start the DAK

2. Click File | New/Create

3. Click the Browse button next to Coverage Name and navigate to the desired working directory. Type in the name on the new coverage (without an extension) in the Coverage Name field.

4. Click the Browse button next to TIC/BND Coverage and navigate to the desired working directory. Select an existing coverage. It does not have to have a .TIC or .BND extension; you can pick a .PAT or .AAT extension.

5. You can now follow the above steps for registering an existing coverage using the ARCEDITW GUI.

To preserve a user_ID in the DAK/ARCVIEW and avoid the data scrambling problem follow these steps:

1. In ARCVIEW add a new ITEM (example: ID_2). Use this item as the user ID for future JOINS with external databases.

2. Calculate the item (ID_2 = cover_ID).

Good ARCVIEW editing techniques:

   Theme | Table
   Table | Start Editing
   Edit | Add Field
   Clear Button (three vertical dots)
   Edit Field Button (I with and arrow pointing to it)
   Table | Stop Editing

3. In the DAK make, the edit changes as normal: ADD new arcs, UNSPLIT/JOIN old arcs. and so forth.

4. When done making edit changes, select SAVE and check the appropriate feature box for the RECALC USER IDs dialog box.

In this scenario the cover_ID will constantly change but the data will not scramble. You will use the new ITEM (i.e. ID_2) as the user_ID for external data base joins.

Article ID:000001625

Software:

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Edit coverages using a digitizer

Procedure

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