وفِّر 3D شبكات بتنسيق ثنائي مخصص
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Aspose.3D for Java API يدعم فتح أي مستند 3D مدعوم ، ثم اكتب الشبكات في الملف الثنائي.
قم بتحميل ملف 3D وكتابة الشبكات في عينة برمجة ثنائية التنسيق مخصصة
تقبل الطريقة التي كشفها عضو RootNode في فئة Scene
تسمح بزيارة كل عقدة فرعية. يسمح مقتطف الرمز أدناه بتحويل الشبكات فقط.
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// The path to the documents directory. | |
String MyDir = RunExamples.getDataDir(); | |
// load a 3D file | |
Scene scene = new Scene(MyDir + "test.fbx"); | |
/* | |
* 3D format demonstration is simple | |
* | |
* struct File { | |
* MeshBlock blocks[]; | |
* }; | |
* | |
* struct Vertex { | |
* float x; | |
* float y; | |
* float z; | |
* }; | |
* | |
* struct Triangle { | |
* int a; | |
* int b; | |
* int c; | |
* }; | |
* | |
* struct MeshBlock { | |
* int numControlPoints; | |
* int numTriangles; | |
* Vertex vertices[numControlPoints]; | |
* Triangle faces[numTriangles]; | |
* }; | |
*/ | |
// open file for writing in binary mode | |
try (DataOutputStream writer = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(MyDir + "Save3DMeshesInCustomBinaryFormat_out")))) | |
{ | |
// visit each descent nodes | |
scene.getRootNode().accept(new NodeVisitor(){ | |
@Override | |
public boolean call(Node node) { | |
try { | |
for (Entity entity : node.getEntities()) { | |
// only convert meshes, lights/camera and other stuff will be ignored | |
if (!(entity instanceof IMeshConvertible)) | |
continue; | |
Mesh m = ((IMeshConvertible) entity).toMesh(); | |
List<Vector4> controlPoints = m.getControlPoints(); | |
// triangulate the mesh, so triFaces will only store triangle indices | |
int[][] triFaces = PolygonModifier.triangulate(controlPoints, m.getPolygons()); | |
// gets the global transform matrix | |
Matrix4 transform = node.getGlobalTransform().getTransformMatrix(); | |
// write number of control points and triangle indices | |
writer.writeInt(controlPoints.size()); | |
writer.writeInt(triFaces.length); | |
// write control points | |
for (int i = 0; i < controlPoints.size(); i++) { | |
// calculate the control points in world space and save them to file | |
Vector4 cp = Matrix4.mul(transform, controlPoints.get(i)); | |
writer.writeFloat((float) cp.x); | |
writer.writeFloat((float) cp.y); | |
writer.writeFloat((float) cp.z); | |
} | |
// write triangle indices | |
for (int i = 0; i < triFaces.length; i++) { | |
writer.writeInt(triFaces[i][0]); | |
writer.writeInt(triFaces[i][1]); | |
writer.writeInt(triFaces[i][2]); | |
} | |
} | |
} catch(Exception e) { | |
e.printStackTrace(); | |
} | |
return true; | |
} | |
}); | |
} |