Free Java Library to Create & Manage AutoCAD DXF File

Getting Started with DXFOperator

The recommend way to install DXFOperator is using GitHub. Please use the following command for a smooth installation.

 git clone https://github.com/my88480/DXFOperator.git  

You can also install it manually; download the latest release files directly from GitHub repository.

Create DXF Drawings via Java API

The open source DXFOperator library has provided complete functionality for programmatically creating, modifying, manipulating and converting DXF files inside Java applications. The library supports a wide range of DXF entities, including lines, circles, arcs, polygons, and text, ensuring accurate conversion of complex designs. Here is a very useful example that demonstrates how to create a DXF file and add basic entities using Java commands.

import dxf.DXF;
import dxf.entities.EntLine;
import java.io.IOException;

public class DXFExample {
    public static void main(String[] args) {
        DXF dxf = new DXF();
        
        // Add a simple line to the DXF file
        EntLine line = new EntLine(10, 10, 100, 100);
        dxf.addEntity(line);

        // Save the DXF file
        try {
            dxf.saveAs("example.dxf");
            System.out.println("DXF file created successfully.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Manage Entities in DXF Files via Java

The DXFOperator library provides a rich set of classes for working with various DXF entities inside Java applications. The library supports entities like lines, circles, arcs, polygons and so on. With just a couple of lines of Java code software developers can easily create, modify, read, manipulate or delete entities within a DXF file. The following example shows how to modify the radius of all circle entities in a DXF files inside Java applications.

import com.github.my88480.dxfoperator.DXFOperator;
import com.github.my88480.dxfoperator.DXFDocument;
import com.github.my88480.dxfoperator.entities.DXFCircle;

public class ModifyEntityExample {
    public static void main(String[] args) {
        // Load a DXF file
        DXFDocument document = DXFOperator.readDXF("example.dxf");

        // Find and modify a circle entity
        document.getEntities().stream()
            .filter(entity -> entity instanceof DXFCircle)
            .forEach(entity -> {
                DXFCircle circle = (DXFCircle) entity;
                circle.setRadius(50); // Change the radius of the circle
            });

        // Save the modified document
        DXFOperator.writeDXF("modified_example.dxf", document);
    }
}

Working with Layers in DXF File via Java

The open source DXFOperator library has provided complete support for handling layers inside DXF drawings inside Java applications. The library fully support working with layers which is a critical feature in CAD applications. Software Developers can create, modify, or delete layers programmatically. The following example demonstrates how to create a new layer and assign an entity to it inside Java applications.

import com.github.my88480.dxfoperator.DXFOperator;
import com.github.my88480.dxfoperator.DXFDocument;
import com.github.my88480.dxfoperator.entities.DXFLayer;

public class LayerExample {
    public static void main(String[] args) {
        // Load a DXF file
        DXFDocument document = DXFOperator.readDXF("example.dxf");

        // Create a new layer
        DXFLayer newLayer = new DXFLayer("MyLayer");
        document.addLayer(newLayer);

        // Assign an entity to the new layer
        document.getEntities().get(0).setLayer(newLayer);

        // Save the modified document
        DXFOperator.writeDXF("layered_example.dxf", document);
    }
}

DXF File Conversion via Java

The open source DXFOperator library makes it easy for software developers to load and read DXF files. The library provides a straightforward way to convert DXF files to other supported file formats, preserving the design's structure and details. Developers can customize the output to suit their needs, such as adjusting scaling, colors, and other attributes.