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The delete contour line menu option allows a contour line to be deleted from the database. Use the left mouse button to select the contour line. A dialog box will prompt to confirm deletion of the nearest contour line which will temporarily be shown in red. If this is the contour that is wished to be deleted then select yes otherwise select no. If the 'no' option is selected and there was another contour in the direct vicinity of the mouse click it will be prompted for deletion and shown in red next.

 

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