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Aspose.3D for Java 22.5发行说明

改进和变更

钥匙摘要类别
THREEDNET-1149网格三角剖分不支持映射模式多边形/多边形顶点的VertexElementUserData新功能
THREEDNET-1148在TriMesh中添加对VertexElementUserData的支持新功能
THREEDNET-1138允许将VertexElementUserData导出到glTF新功能
THREEDNET-1119支持GLTF自定义顶点属性新功能

API更改

在类com.aspose.threed.VertexElementUserData中更新属性类型从Map<String, Object>到Object:

    /**
     * The user data attached in this element
     */
    public Object getData();
    
    /**
     * The user data attached in this element
     * @param value New value
     */
    public void setData(Object value);

如果旧代码在VertexElementUserData中附加了多个数据，现在应该使用多个VertexElementUserData。

通过此API更改，我们可以支持将VertexElementUserData转换为TriMesh，甚至导出为glTF:

示例代码:

//Manually define a cube
Vector4[]controlPoints = new Vector4[]{
        new Vector4(-5.0, 0.0, 5.0, 1.0),
        new Vector4(5.0, 0.0, 5.0, 1.0),
        new Vector4(5.0, 10.0, 5.0, 1.0),
        new Vector4(-5.0, 10.0, 5.0, 1.0),
        new Vector4(-5.0, 0.0, -5.0, 1.0),
        new Vector4(5.0, 0.0, -5.0, 1.0),
        new Vector4(5.0, 10.0, -5.0, 1.0),
        new Vector4(-5.0, 10.0, -5.0, 1.0)
};
// Initialize mesh object
Mesh mesh = new Mesh();
// Add control points to the mesh
mesh.getControlPoints().addAll(Arrays.asList(controlPoints));
// Create polygons to mesh
// Front face (Z+)
mesh.createPolygon(0, 1, 2, 3);
// Right side (X+)
mesh.createPolygon(1, 5, 6, 2 );
// Back face (Z-)
mesh.createPolygon(5, 4, 7, 6);
// Left side (X-)
mesh.createPolygon(4, 0, 3, 7);
// Bottom face (Y-)
mesh.createPolygon(0, 4, 5, 1);
// Top face (Y+)
mesh.createPolygon(3, 2, 6, 7 );

//create a user data to store face id for each face, this is done by specifying MappingMode to Polygon
var userData = (VertexElementUserData)mesh.createElement(VertexElementType.USER_DATA, MappingMode.POLYGON, ReferenceMode.DIRECT);
//The name of the UserData will be used as the field's name
userData.setName("__FACE_ID");
userData.setData(new double[]{
        0,1,2,3,4,5
});
var triMesh = TriMesh.fromMesh(mesh);
System.out.println("TriMesh:");
for(var vtx : triMesh)
{
        System.out.println(vtx);
}

输出为:

TriMesh:
POSITION = (-5.0,0.0,5.0), __FACE_ID = 0.0
POSITION = (5.0,0.0,5.0), __FACE_ID = 0.0
POSITION = (5.0,10.0,5.0), __FACE_ID = 0.0
POSITION = (5.0,10.0,5.0), __FACE_ID = 0.0
POSITION = (-5.0,10.0,5.0), __FACE_ID = 0.0
POSITION = (5.0,0.0,5.0), __FACE_ID = 1.0
POSITION = (5.0,0.0,-5.0), __FACE_ID = 1.0
POSITION = (5.0,10.0,-5.0), __FACE_ID = 1.0
POSITION = (5.0,10.0,-5.0), __FACE_ID = 1.0
POSITION = (5.0,10.0,5.0), __FACE_ID = 1.0
POSITION = (5.0,0.0,-5.0), __FACE_ID = 2.0
POSITION = (-5.0,0.0,-5.0), __FACE_ID = 2.0
POSITION = (-5.0,10.0,-5.0), __FACE_ID = 2.0
POSITION = (-5.0,10.0,-5.0), __FACE_ID = 2.0
POSITION = (5.0,10.0,-5.0), __FACE_ID = 2.0
POSITION = (-5.0,0.0,-5.0), __FACE_ID = 3.0
POSITION = (-5.0,0.0,5.0), __FACE_ID = 3.0
POSITION = (-5.0,10.0,5.0), __FACE_ID = 3.0
POSITION = (-5.0,10.0,5.0), __FACE_ID = 3.0
POSITION = (-5.0,10.0,-5.0), __FACE_ID = 3.0
POSITION = (-5.0,0.0,5.0), __FACE_ID = 4.0
POSITION = (-5.0,0.0,-5.0), __FACE_ID = 4.0
POSITION = (5.0,0.0,-5.0), __FACE_ID = 4.0
POSITION = (5.0,0.0,-5.0), __FACE_ID = 4.0
POSITION = (5.0,0.0,5.0), __FACE_ID = 4.0
POSITION = (-5.0,10.0,5.0), __FACE_ID = 5.0
POSITION = (5.0,10.0,5.0), __FACE_ID = 5.0

 
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