PROJECTION ANALYSIS FOR CADASTRAL MAPPING

Resumo

Maps are created for different purposes. Among the various types of maps, cadastral
maps are created by cadastral surveying. Cadastral maps are used for management
of land and land-related activities by Government organisations or other institutions
in various countries. Cadastral map making is both an art and a science, and the data
about a surveyed land parcel are collected and incorporated in cadastral maps.
Technological development has resulted in the development of simple methods for
cadastral mapping. The Indian cadastral system for the state of Tamil Nadu is
described in this paper. The challenges of conversion while scanning conventional
paper-based land records to make digital records are explained. The procedure for
selecting an appropriate projection system for scanned digital conventional records
is elaborated on. A statistical application for identifying the nature of the data is
shown. An inverse ranking system is used to identify a suitable projection system.
Projection research is important in cadastral mapping when digitally processing a
large number of land records in a country. The described method is effective for
identification of a suitable projection system.