Entity

Example

Example Entity clasa este clasa de bază abstractă pentru obiecte care pot fi atașate la un Node în graficul de scenă Aspose.3D. Subclase concrete includ Mesh, Camera, Light, și Geometry. Entity oferă acces la ierarhia nodului părinte și expune getExcluded() metoda pentru controlul vizibilității.

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

Scene scene = Scene.fromFile("model.obj");

for (Node node : scene.getRootNode().getChildNodes()) {
    Entity entity = node.getEntity();
    if (entity != null) {
        if (!entity.getExcluded()) {
            Node parent = entity.getParentNode();
            System.out.println("Active entity '" + entity.getName()
                + "', parent: " + (parent != null ? parent.getName() : "None"));
        }
    }
}

Example

A3DObject -> SceneObject -> Entity

Subclase: Geometry -> Mesh, Camera, Light, și altele.

Example

Entity este o clasă de bază abstractă și nu este instanțiată direct. Folosiți o subclasă concretă, cum ar fi Mesh.

Example

NameTypeAccessDescription
parentNodeNodeReadGets the parent node.
parentNodesArrayList<Node>ReadGets the parent nodes.
excludedbooleanReadGets the excluded.
boundingBoxBoundingBoxReadGets the bounding box.
sceneSceneReadGets the scene.
nameStringReadGets the name.
propertiesPropertyCollectionReadGets the properties.

Example

SignatureDescription
Entity()NURBS curve is a curve represented by NURBS(Non-uniform rational basis spline), A NURBS curve is defined by its getOrder(), a set of weighted Geometry.getControlPoints() and a getKnotVectors() The w component in control point is used as control point’s weight, whatever it is a CurveDimension.TWO_DIMENSIONAL or CurveDimension.THREE_DIMENSIONAL
Entity(name: String)Creates a new Entity with the given name
getParentNode()NodeConstructor of instance.
setParentNode(value: Node)The Boolean operator used in the operation to create the result mesh.
getParentNodes()ArrayList<Node>Protected constructor to allow derived classes to set name.
getExcluded()booleanThe Boolean operator used in the operation to create the result mesh.
setExcluded(value: boolean)Sets the excluded value.
getBoundingBox()BoundingBoxThe first operand of the Boolean operator.
SceneObject()Boolean operator allows you to apply Boolean operation on two IMeshConvertible instances.
getScene()SceneConstructor of BooleanOperator.
A3DObject()Parameterized Cylinder. It can also be used to represent a cone when one of radiusTop/radiusBottom is zero.
getName()StringThe segments of the curve.
setName(name: String)Constructs a CircleShape profile with specified radius.
getProperties()PropertyCollectionInitializes a new instance of Cylinder class.
findProperty(name: String)PropertyInitializes a new instance of the Bone class.
getProperty(name: String)ObjectGets the transform matrix of the node in current pose.
setProperty(name: String, value: Object)Gets the width segments.
removeProperty(name: String)booleanGets flip coordinate system of control points/normal during importing/exporting.

Example

Inspectați starea entității după încărcarea unei scene:

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

Scene scene = Scene.fromFile("model.stl");

for (Node node : scene.getRootNode().getChildNodes()) {
    Entity entity = node.getEntity();
    if (entity == null) continue;

    System.out.println("Entity: " + (entity.getName().isEmpty() ? "(unnamed)" : entity.getName()));
    System.out.println("  Type: " + entity.getClass().getSimpleName());
    System.out.println("  Excluded: " + entity.getExcluded());
    System.out.println("  Parent node: "
        + (entity.getParentNode() != null ? entity.getParentNode().getName() : "None"));

    if (entity instanceof Mesh) {
        Mesh mesh = (Mesh) entity;
        System.out.println("  Vertices: " + mesh.getControlPoints().size());
        System.out.println("  Polygons: " + mesh.getPolygonCount());
    }
}

Vezi și

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