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Abstract
Finally we arrive at the output of the line-drawing interpretation process. Before it can be stored in an output database, the digital map or engineering drawing should be checked and edited because it is not possible to recognize all objects automatically and there are always errors after automatic recognition. That is why we discuss the possible ways of interactive editing and interpretation of line drawings. Then we show how interpretation errors can be detected and deleted. The edited information is ready to be recorded in an output database, and the database variants for maps and engineering drawings are briefly considered. Several practical recommendations for line-drawing interpretation are given. For CAD systems, the very important task is to convert the 2D representation into the 3D form that is considered here. Finally, topics for further development and unsolved tasks are considered in the chapter.
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