Symbology Conceptual Core Model

This standard provides the conceptual basis to define symbology rules for the portrayal of geographical data. The abstract Style class must be considered as the root element for portraying a geographic data model and for defining a concrete style model, e.g., specific style dedicated to render 2D vector data.

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Document title	Version	OGC Doc No.	Type
OGC Symbology Conceptual Model: Core Part	3.0	18-067r3	IS

Official model files and encoding schemas

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Overview

The SymCore is a conceptual, modular, neutral model for the portrayal of geographical data. The model contains a minimal set of abstract classes representing explicit extension points of the model. It forms the conceptual basis to define symbology rules for the portrayal of geographical data. It is modular and extensible (one core model, many extensions), also encoding agnostic (one symbology model, many encodings). It contains a minimal set of abstract classes representing explicit extension points of the model.

SymCore provide the flexibility required to achieve adequate symbology rules for a variety of information communities; e.g., aviation symbols, weather symbols, thematic maps, etc,; and achieve high-level styling interoperability without encoding dependencies. Implementations of SymCore are expected to enhance OGC standards such as the Web Map Service, Web Feature Service, GeoPackage, and others.