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Table 1 A Classification for CLGTS symbols

From: Visualizing the cultural landscape gene of traditional settlements in China: a semiotic perspective

Symbol class

Description

Note

Graphic symbols

Using the graphic symbols composed of the basic elements to express the special meanings of CLGTS

Simple symbol

Picture symbols

Directly defining the pictures/images as the symbols to express some special meanings of CLGTS

Simple symbol

Texts symbols

Directly using text to describe the meanings of CLGTS

Textual symbol

Spatial comprehensive layout symbols

Combining the mapping functions of GIS software to intuitively express the meanings of the layout symbols of CLGTS

Compound symbol