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ts-graphviz

website·Indexed 29 days ago

https://ts-graphviz.github.io

A TypeScript library for creating and managing DOT objects, including support for graphs, digraphs, nodes, edges, and subgraphs. The project includes modules such as @ts-graphviz/common, @ts-graphviz/react for React integration, and a ts-graphviz/adapter for layout and format handling.

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What's inside ts-graphviz

  1. Introduction to ts-graphviz for TypeScript/JavaScript

    ts-graphviz is a TypeScript library that integrates the Graphviz DOT language into the TypeScript/JavaScript ecosystem. It allows for the programmatic generation and manipulation of graphs based on dynamic data. Key capabilities include:

    • Strong typing for enhanced development efficiency and type safety.
    • An object-oriented API for managing graphs, nodes, and edges.
    • Support for both declarative and imperative programming styles.
    • Cross-platform compatibility with Node.js, Deno, and browser environments.
    • Advanced AST (Abstract Syntax Tree) manipulation of the DOT language for complex use cases.

  2. Overview of ts-graphviz internal packages

    ts-graphviz is split into several internal packages for specific extensibility needs:

    • @ts-graphviz/adapter: Handles execution of Graphviz commands and conversion of DOT strings to files/streams.
    • @ts-graphviz/ast: Provides tools to parse and manipulate the DOT language at the Abstract Syntax Tree level.
    • @ts-graphviz/common: Contains shared type definitions, constants, and the $keywords utility for extending the type system.
    • @ts-graphviz/core: Contains the primary object-oriented implementations of graph models.

  3. Overview of Graphviz and the DOT language

    Graphviz is an open-source graph visualization software used to represent structural information (such as hierarchies, data flows, and state machines) as diagrams of abstract graphs and networks. It utilizes the DOT language to describe nodes, edges, and their relationships, which can be rendered into formats including PNG, SVG, and PDF.

  4. Overview of ts-graphviz capabilities

    ts-graphviz is a TypeScript/JavaScript library designed to generate and manipulate complex graphs using Graphviz. It provides type safety for improved development efficiency and is compatible across Node.js, Deno, and browser environments. The library's type system is customizable and extensible to meet specific project needs.

  5. Overview of @ts-graphviz/react features

    @ts-graphviz/react provides a declarative UI paradigm for Graphviz, offering:

    • Declarative Graph Definition: Define graphs, nodes, and edges using JSX.
    • HTML-like Labels: Create rich, complex labels using JSX (e.g., using <dot:table> or standard HTML tags like <b>).
    • Component Reusability: Encapsulate graph logic within React components to make the codebase more maintainable.

  8. Use the EdgeASTNode interface to represent graph edges

    The EdgeASTNode is an AST node used to represent an edge in a graph. It extends ASTBaseParentNode and EdgeASTPropaties. It is characterized by a fixed type property set to 'Edge' and contains information about the edge's source and destination targets.
    interface EdgeASTNode {
  children: (CommentASTNode | AttributeASTNode<AttributeKey>)[];
  location?: FileRange;
  targets: [
    from: EdgeTargetASTNode,
    to: EdgeTargetASTNode,
    ...rest: EdgeTargetASTNode[],
  ];
  type: "Edge";
}

  11. Use @ts-graphviz/common for DOT language type safety

    The @ts-graphviz/common package provides type definitions for DOT language elements (attributes and values), constants for common attribute names, and performance-optimized utilities for managing large model collections. It is designed to integrate with @ts-graphviz/react for type-safe model filtering.

  12. Understand core graph theory and ts-graphviz terminology

    The following terms are fundamental to working with ts-graphviz and the underlying Graphviz DOT language:

    • Node: The basic element of a graph, representing entities or objects.
    • Edge: A line representing connections or relationships between nodes.
    • Graph: A structure consisting of nodes and edges.
    • Directed Graph (Digraph): A graph where edges have a specific direction.
    • Subgraph: A subset of nodes and edges that form a part of the larger graph.
    • Attribute: Properties that define the appearance or behavior of nodes, edges, or graphs.
    • DOT Language: The specific graph description language used by Graphviz to render visualizations.