dxf

Package Overview

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The dxf package enables Dart developers to programmatically create, read, update, and delete data in AutoCAD DXF files, a widely used CAD data format. It provides a structured way to interact with geometric and metadata elements within DXF files across multiple platforms. Ideal for applications requiring CAD file manipulation, such as design tools, engineering software, or 3D modeling workflows. The package supports full lifecycle management of DXF content and is compatible with Android, iOS, Web, macOS, Windows, and Linux.

Use cases

CAD file generation
3D model data extraction
engineering design automation
DXF file editing
cross-platform CAD integration

Key features

Read and write DXF files
Support for geometric entities
Metadata manipulation
Cross-platform compatibility
Open-source implementation

Suitable for

CAD application developers
3D modeling tools
Engineering software
IoT design systems
Web-based drafting tools

Considerations

Limited to DXF format only
No advanced 3D rendering
Requires understanding of DXF structure
Not optimized for large files
Dependent on external library maintenance

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

DXF package for Dart and Flutter developers

DXF package for Dart developers to create, read, update and delete the data in AutoCAD DXF file - a CAD data file format developed by Autodesk.

Usage

A simple usage example:

import 'package:dxf/dxf.dart';

void main() {
  final dxf = DXF.create();
  // or dxf = DXF.fromString(dxfString);
  var arc = AcDbArc(
    x: -3.4,
    y: 19.8,
    z: 0,
    radius: 4.5,
    startAngle: 297,
    endAngle: 40,
  );
  dxf.addEntities(arc);

  var circle = AcDbCircle(
    x: 0.2,
    y: 12,
    z: 0,
    radius: 2.5,
  );
  dxf.addEntities(circle);

  var ellipse = AcDbEllipse(
    x: 5.4,
    y: 19,
    z: 0,
    xEndPoint: -1.6,
    yEndPoint: -0.8,
    zEndPoint: 0,
    ratioMajor: 0.5,
    start: 0,
    end: 2 * pi,
  );
  dxf.addEntities(ellipse);

  var line = AcDbLine(
    x: 3.6,
    y: 14.3,
    x1: 8.08,
    y1: 15.3,
  );
  dxf.addEntities(line);

  var mtext = AcDbMText(
      x: 3.7,
      y: 12.3,
      z: 0,
      textHeight: 2.5,
      textString: 'Hello, xin chào',
      columnWidth: 12.9);
  dxf.addEntities(mtext);

  var point = AcDbPoint(x: -0.6, y: 8.3, z: 0);
  dxf.addEntities(point);

  var vertices = <List<double>>[];
  vertices.addAll([
    [2.4, 21.1],
    [6.7, 22.6],
    [9.9, 21.7],
    [13.5, 22.6]
  ]);

  var polyline = AcDbPolyline(vertices: vertices, isClosed: false);
  dxf.addEntities(polyline);

  var text = AcDbText(
    x: 14.2,
    y: 16.7,
    textString: 'https://humg.edu.vn',
  );
  dxf.addEntities(text);

  print(dxf.dxfString);
}

Features and bugs

Please file feature requests and bugs at the issue tracker.

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