Convert OBJ to STL via Java
OBJ to STL conversion using Java library without any 3D modeling software.
How to Convert OBJ to STL Using Java
In order to render OBJ to STL, we’ll use
API which is a feature-rich, powerful and easy to use conversion API for Java platform. You can download its latest version directly from
and install it within your Maven-based project by adding the following configurations to the pom.xml.
<repository> <id>AsposeJavaAPI</id> <name>Aspose Java API</name> <url>https://repository.aspose.com/repo/</url> </repository>
<dependency> <groupId>com.aspose</groupId> <artifactId>aspose-3d</artifactId> <version>version of aspose-3d API</version> <classifier>jdk17</classifier> </dependency>
Steps to Convert OBJ to STL via Java
Java programmers can easily convert OBJ file to STL in just a few lines of code.
- Load OBJ file via the constructor of Scene class
- Create an instance of StlSaveOptions
- Set STL specific properties for advanced conversion
- Call Scene.save method
- Pass the output path with STL file extension & object of StlSaveOptions
Before running the Java conversion code, make sure that you have the following prerequisites.
- Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
- Get latest version of Aspose.3D for Java directly from Maven.
Java 3D Scene Manipulation LibraryAspose.3D is a CAD and Gameware API to load, modify and convert 3D files. API is a standalone and does not require any any 3D modeling or rendering software. One can easily use API for Discreet3DS, WavefrontOBJ, STL (ASCII, Binary), Universal3D, FBX (ASCII, Binary), Collada, glTF, PLY, GLB, DirectX and more formats.
OBJ What is OBJ File Format
OBJ files are used by Wavefront's Advanced Visualizer application to define and store the geometric objects. Backward and forward transmission of geometric data is made possible through OBJ files. Both polygonal geometry like points, lines, texture vertices, faces and free-form geometry (curves and surfaces) are supported by OBJ format. This format does not support animation or information related to light and position of scenes. An OBJ file is usually an end product of the 3D modeling process generated by a CAD (Computer Aided Design). The default order to store vertices is counter-clockwise avoiding explicit declaration of face normals. Though OBJ files declare scale information in a comment line yet no units have been declared for OBJ coordinates.Read More
STL What is STL File Format
STL, abbreviation for stereolithrography, is an interchangeable file format that represents 3-dimensional surface geometry. The file format finds its usage in several fields such as rapid prototyping, 3D printing and computer-aided manufacturing. It represents a surface as a series of small triangles, known as facets, where each facet is described by a perpendicular direction and three points representing the vertices of the triangle. Resultant data is used by applications to determine the cross section of the 3D shape to be built by the fabber. There is no information available in the STL file format for representation of colour, texture or other common CAD model attributes.Read More
Other Supported Conversions
You can also convert OBJ into many other file formats including few listed below.