GB/T 24355-2023 Geographic information—Portrayal

Scope

This document specifies a conceptual model for graphic expression, which is used to describe symbols, graphic expression functions that map geospatial elements to symbols, and symbol sets and graphic expression function sets in a graphic expression catalog. This model can be used in the design of graphic expression systems. It allows element data to be separated from graphic expression data, so that the data can be graphically expressed independently of the dataset.
This document is not applicable to the following aspects:
——Standard symbol sets (such as Chart Symbols Specification 1 - IHO);
——Symbol graphic standards [such as Scalable Vector Graphics (SVG)];
——Graphic expression services (such as web map services);
——Non-visual graphic expression capabilities (such as auditory symbols);
——Dynamic graphic rendering (such as the drawing of dynamic tidal lines);
——Post-processing rules for graphic expression (such as map generalization, solving overprinting problems, and offsetting rules);
——Three-dimensional symbolization (such as simulation modeling).

Development Information

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