Mesh — Aspose.3D FOSS for Java

public class Mesh extends Geometry

import com.aspose.threed.Scene;
import com.aspose.threed.*;


// Create the mesh and add three vertex positions
Mesh mesh = new Mesh();
mesh.getControlPoints().add(new Vector4(0.0, 0.0, 0.0, 1.0));   // vertex 0
mesh.getControlPoints().add(new Vector4(1.0, 0.0, 0.0, 1.0));   // vertex 1
mesh.getControlPoints().add(new Vector4(0.5, 1.0, 0.0, 1.0));   // vertex 2

// Define one triangle face using vertex indices
mesh.createPolygon(0, 1, 2);

// Attach to a scene and save
Scene scene = new Scene();
scene.getRootNode().createChildNode("triangle", mesh);
scene.save("triangle.stl");

import com.aspose.threed.Scene;
import com.aspose.threed.*;


Mesh mesh = new Mesh();
// Four corners of a unit square in the XZ plane
mesh.getControlPoints().add(new Vector4(0, 0, 0, 1.0));
mesh.getControlPoints().add(new Vector4(1, 0, 0, 1.0));
mesh.getControlPoints().add(new Vector4(1, 0, 1, 1.0));
mesh.getControlPoints().add(new Vector4(0, 0, 1, 1.0));

// One quad face
mesh.createPolygon(0, 1, 2, 3);
System.out.println("Polygons before triangulate: " + mesh.getPolygonCount());  // 1

// WARNING: triangulate() is a stub — it returns a clone, NOT a triangulated mesh.
// The polygon count will remain 1 (not 2).
Mesh triangulated = mesh.triangulate();
System.out.println("Polygons after triangulate: " + triangulated.getPolygonCount());  // still 1

Scene scene = new Scene();
scene.getRootNode().createChildNode("quad", triangulated);
// When saving to STL, pass triangle-only meshes to avoid vertex loss or malformed output.
scene.save("quad.glb");

Mesh mesh = new Mesh();
// ... populate control points ...
mesh.createPolygon(0, 1, 2);       // triangle
mesh.createPolygon(0, 1, 2, 3);    // quad
System.out.println(mesh.getPolygonCount());   // 2

import com.aspose.threed.*;

Mesh mesh = new Mesh();
mesh.getControlPoints().add(new Vector4(0, 0, 0, 1.0));
mesh.getControlPoints().add(new Vector4(1, 0, 0, 1.0));
mesh.getControlPoints().add(new Vector4(1, 1, 0, 1.0));
mesh.getControlPoints().add(new Vector4(0, 1, 0, 1.0));
mesh.createPolygon(0, 1, 2, 3);   // one quad

Mesh triMesh = mesh.triangulate();
// Note: currently returns a clone, not a triangulated mesh
System.out.println(triMesh.getPolygonCount());

import com.aspose.threed.*;

Mesh ensureMesh(Geometry geom) {
    return geom.toMesh();
}

import com.aspose.threed.*;





Mesh mesh = new Mesh();
mesh.getControlPoints().add(new Vector4(0, 0, 0, 1));
mesh.getControlPoints().add(new Vector4(1, 0, 0, 1));
mesh.getControlPoints().add(new Vector4(0.5, 1, 0, 1));
mesh.createPolygon(0, 1, 2);

VertexElement normalElement = mesh.createElement(
    VertexElementType.NORMAL,
    MappingMode.CONTROL_POINT,
    ReferenceMode.DIRECT
);

import com.aspose.threed.*;




Mesh mesh = new Mesh();
// ... define control points and polygons ...
VertexElementUV uvElement = mesh.createElementUV(
    TextureMapping.DIFFUSE,
    MappingMode.POLYGON_VERTEX,
    ReferenceMode.INDEX_TO_DIRECT
);