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GIS applications for mural painting documentation Gaetano Palumbo

• In the previous example, a typical GIS function is demonstrated: the association of a database table with a graphic coverage. In this case the cracks database holds 780 records, representing each crack identified on the mural. Each of them has an identification number that can be displayed as a label, and information on its length, as well as on its severity, identified with a number from 1 (less than 0.5mm in thickness) to 4 (more than 1.5mm in thickness).

• The software can “read” the database and display the results in a variety of ways: all the cracks can be displayed in the same way, or looking at the length field the cracks can be displayed according to ranges decided by the operator (e.g. less than 10cm, 10-50cm, more than 50cm), or, as in this case, the severity of the cracks can be selected as a filtering option.

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