DOT language

DOT is the plain-text graph description language used by the Graphviz visualization software to model and render structural information (nodes and edges).

DOT is the foundational graph description language for the Graphviz open-source visualization tool suite (Source 1.3). It uses a declarative, plain-text format to specify graph structures, including nodes, edges, subgraphs, and clusters (Source 1.3). Developers define objects and their relationships, utilizing keywords like `graph` for undirected connections (`--`) or `digraph` for directed flows (`->`) (Source 1.5). The language supports extensive attribute customization—color, shape, label—for precise styling of every element (Source 1.3). Graphviz layout engines (e.g., `dot`, `neato`) process the `.dot` or `.gv` file to automatically generate visual representations in formats such as SVG, PDF, or PNG (Source 1.3, 1.5).

https://graphviz.org/doc/info/lang.html