How to Convert 3MF to STL in Java

convert_3mf_to_stl_in_java_complete_code_example.java

import com.aspose.threed.cloud.ApiException;
import com.aspose.threed.cloud.api.ThreeDApi;
import com.aspose.threed.cloud.model.ConvertRequest;
import com.aspose.threed.cloud.model.StlExportOptions;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

public class Convert3mfToStl {
    public static void main(String[] args) {
        // Replace with your actual credentials
        String clientId = "YOUR_CLIENT_ID";
        String clientSecret = "YOUR_CLIENT_SECRET";

        // Input and output file names
        String inputFile = "model.3mf";
        String outputFile = "model.stl";

        try {
            // Initialize API client
            ThreeDApi api = new ThreeDApi(clientId, clientSecret);

            // Upload source 3MF file
            byte[] inputData = Files.readAllBytes(Paths.get(inputFile));
            api.uploadFile(inputFile, inputData);

            // Set STL export options (binary, millimeter units)
            StlExportOptions exportOptions = new StlExportOptions();
            exportOptions.setBinary(true);
            exportOptions.setUnit("millimeter");
            api.setExportOptions(inputFile, exportOptions);

            // Create and execute conversion request
            ConvertRequest convertRequest = new ConvertRequest(inputFile, "stl");
            api.convert(convertRequest);

            // Download the generated STL file
            byte[] stlData = api.downloadFile(outputFile);
            Files.write(Paths.get(outputFile), stlData);

            System.out.println("Conversion successful. STL saved as " + outputFile);
        } catch (ApiException e) {
            System.err.println("API error: " + e.getResponseBody());
        } catch (IOException e) {
            System.err.println("File I/O error: " + e.getMessage());
        }
    }
}