T/GDRSGIS 002-2021 The specification for the weight of electronic map elements on the Yuezhengtuan platform

Scope

Main technical content: With the rapid development and widespread application of electronic maps, the electronic map products of the Guangdong Government Map Platform provide a strong foundation support for the business application needs of various government departments. This document, based on the current national and industry-related standards and norms of China and combined with the actual situation of Guangdong Province, determines the selection and avoidance order of annotations on the electronic maps of the Guangdong Government Map Platform from the perspective of map cartography through weight assignment, and standardizes the expression forms of vector electronic maps and image electronic maps at the provincial level (levels 7-17) to enhance the scientificity, accuracy, aesthetics, and readability of the electronic maps of the Guangdong Government Map Platform and provide more perfect map services. The main technical content of this document includes: First, it standardizes the basic requirements for the processing of map data and clarifies the fields and attributes for increasing the weight of elements. Second, it describes the map annotations, including points of interest, transportation and auxiliary facilities, water systems, etc. Third, it determines the weight range and value requirements for the mapping elements of the map data. Fourth, it standardizes related appendix documents, such as the content of map annotations, the classification of points of interest and the weight assignment table, and the annotation weight table of basic geographical elements.

Development Information

Related Standards