shape3d.java

JAVA3D矩陈的相关类

     */
    public void addGeometry(Geometry geometry) {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_GEOMETRY_WRITE))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D2"));
	
	((Shape3DRetained)retained).addGeometry(geometry);
    }

  
    /**
     * Returns the number of geometry components in this Shape3D node's
     * list of geometry components.
     * @return the number of geometry components in this Shape3D node's
     * list of geometry components.
     * @exception CapabilityNotSetException if appropriate capability is
     * not set and this object is part of live or compiled scene graph
     *
     * @since Java 3D 1.2
     */
    public int numGeometries() {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_GEOMETRY_READ))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D3"));
	return ((Shape3DRetained)retained).numGeometries(id);
    }


    /**
     * Retrieves the index of the specified geometry component in
     * this Shape3D node's list of geometry components.
     *
     * @param geometry the geometry component to be looked up.
     * @return the index of the specified geometry component;
     * returns -1 if the object is not in the list.
     * @exception CapabilityNotSetException if appropriate capability is
     * not set and this object is part of live or compiled scene graph
     *
     * @since Java 3D 1.3
     */
    public int indexOfGeometry(Geometry geometry) {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_GEOMETRY_READ))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D3"));
	return ((Shape3DRetained)retained).indexOfGeometry(geometry);
    }


    /**
     * Removes the specified geometry component from this
     * Shape3D node's list of geometry components.
     * If the specified object is not in the list, the list is not modified.
     *
     * @param geometry the geometry component to be removed.
     * @exception CapabilityNotSetException if appropriate capability is
     * not set and this object is part of live or compiled scene graph
     *
     * @since Java 3D 1.3
     */
    public void removeGeometry(Geometry geometry) {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_GEOMETRY_WRITE))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D2"));
	((Shape3DRetained)retained).removeGeometry(geometry);
    }


    /**
     * Removes all geometry components from this Shape3D node.
     *
     * @exception CapabilityNotSetException if appropriate capability is
     * not set and this object is part of live or compiled scene graph
     *
     * @since Java 3D 1.3
     */
    public void removeAllGeometries() {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_GEOMETRY_WRITE))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D2"));
	((Shape3DRetained)retained).removeAllGeometries();
    }


    /**
     * Sets the appearance component of this Shape3D node.  Setting it to null
     * specifies that default values are used for all appearance attributes.
     * @param appearance the new appearance component for this shape node
     * @exception CapabilityNotSetException if appropriate capability is
     * not set and this object is part of live or compiled scene graph
     */
    public void setAppearance(Appearance appearance) {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_APPEARANCE_WRITE))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D4"));

	((Shape3DRetained)this.retained).setAppearance(appearance);
    }

    /**
     * Retrieves the appearance component of this shape node.
     * @return the appearance component of this shape node
     * @exception CapabilityNotSetException if appropriate capability is
     * not set and this object is part of live or compiled scene graph
     */
     public Appearance getAppearance() {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_APPEARANCE_READ))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D5"));

	return ((Shape3DRetained)this.retained).getAppearance();
    }


    /**
     * Checks whether the geometry in this shape node intersects with
     * the specified pickShape.
     *
     * @param path the SceneGraphPath to this shape node
     * @param pickShape the PickShape to be intersected
     *
     * @return true if the pick shape intersects this node; false
     * otherwise.
     *
     * @exception IllegalArgumentException if pickShape is a PickPoint.
     * Java 3D doesn't have spatial information of the surface.
     * Use PickBounds with BoundingSphere and a small radius, instead.
     *
     * @exception CapabilityNotSetException if the Geometry.ALLOW_INTERSECT
     * capability bit is not set in all of the Geometry objects
     * referred to by this shape node.
     */
    public boolean intersect(SceneGraphPath path, PickShape pickShape) {
	return intersect(path, pickShape, null);
    }


    /**
     * Checks whether the geometry in this shape node intersects with
     * the specified pickRay.
     *
     * @param path the SceneGraphPath to this shape node
     * @param pickRay the PickRay to be intersected
     * @param dist the closest distance of the intersection
     *
     * @return true if the pick shape intersects this node; false
     * otherwise.  If true, dist contains the closest distance of
     * intersection.
     *
     * @exception CapabilityNotSetException if the Geometry.ALLOW_INTERSECT
     * capability bit is not set in all of the Geometry objects
     * referred to by this shape node.
     */
    public boolean intersect(SceneGraphPath path,
			     PickRay pickRay,
			     double[] dist) {

	if (isLiveOrCompiled()) {
	    if (!((Shape3DRetained)retained).allowIntersect())
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D6"));    
	}
	return ((Shape3DRetained)this.retained).intersect(path, pickRay, dist);

    }

    /**
     * Checks whether the geometry in this shape node intersects with
     * the specified pickShape.
     *
     * @param path the SceneGraphPath to this shape node
     * @param pickShape the PickShape to be intersected
     * @param dist the closest distance of the intersection
     *
     * @return true if the pick shape intersects this node; false
     * otherwise.  If true, dist contains the closest distance of
     * intersection.
     *
     * @exception IllegalArgumentException if pickShape is a PickPoint.
     * Java 3D doesn't have spatial information of the surface.
     * Use PickBounds with BoundingSphere and a small radius, instead.
     *
     * @exception CapabilityNotSetException if the Geometry.ALLOW_INTERSECT
     * capability bit is not set in all of the Geometry objects
     * referred to by this shape node.
     *
     * @since Java 3D 1.3
     */
    public boolean intersect(SceneGraphPath path,
			     PickShape pickShape,
			     double[] dist) {

	if (isLiveOrCompiled()) {
	    if (!((Shape3DRetained)retained).allowIntersect())
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D6"));    
	}

	if (pickShape instanceof PickPoint) {
	    throw new IllegalArgumentException(J3dI18N.getString("Shape3D7"));
	}

	return ((Shape3DRetained)this.retained).intersect(path, pickShape, dist);
    }


    /**
     * Sets a flag that indicates whether this node's appearance can
     * be overridden.  If the flag is true, then this node's
     * appearance may be overridden by an AlternateAppearance leaf
     * node, regardless of the value of the ALLOW_APPEARANCE_WRITE
     * capability bit.
     * The default value is false.
     *
     * @param flag the apperance override enable flag.
     * @exception CapabilityNotSetException if appropriate capability is 
     * not set and this object is part of live or compiled scene graph
     *
     * @see AlternateAppearance
     *
     * @since Java 3D 1.2
     */
    public void setAppearanceOverrideEnable(boolean flag) {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_APPEARANCE_OVERRIDE_WRITE))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D8"));

	((Shape3DRetained)this.retained).setAppearanceOverrideEnable(flag);
    }

    /**
     * Retrieves the appearanceOverrideEnable flag for this node.
     * @return true if the appearance can be overridden; false
     * otherwise.
     * @exception CapabilityNotSetException if appropriate capability is 
     * not set and this object is part of live or compiled scene graph
     *
     * @since Java 3D 1.2
     */
    public boolean getAppearanceOverrideEnable() {

	if (isLiveOrCompiled())
	    if (!this.getCapability(ALLOW_APPEARANCE_OVERRIDE_READ))
		throw new CapabilityNotSetException(J3dI18N.getString("Shape3D9"));

	return ((Shape3DRetained)this.retained).getAppearanceOverrideEnable();
    }

    /**
     * Used to create a new instance of the node.  This routine is called
     * by <code>cloneTree</code> to duplicate the current node.
     * <code>cloneNode</code> should be overridden by any user subclassed
     * objects.  All subclasses must have their <code>cloneNode</code>
     * method consist of the following lines:
     * <P><blockquote><pre>
     *     public Node cloneNode(boolean forceDuplicate) {
     *         UserSubClass usc = new UserSubClass();
     *         usc.duplicateNode(this, forceDuplicate);
     *         return usc;
     *     }
     * </pre></blockquote>
     * @param forceDuplicate when set to <code>true</code>, causes the
     *  <code>duplicateOnCloneTree</code> flag to be ignored.  When
     *  <code>false</code>, the value of each node's
     *  <code>duplicateOnCloneTree</code> variable determines whether
     *  NodeComponent data is duplicated or copied.
     *
     * @see Node#cloneTree
     * @see Node#duplicateNode
     * @see NodeComponent#setDuplicateOnCloneTree
     */
    public Node cloneNode(boolean forceDuplicate) {
        Shape3D s = new Shape3D();
        s.duplicateNode(this, forceDuplicate);
        return s;
    }

    /**
     * Copies all node information from <code>originalNode</code> into
     * the current node.  This method is called from the
     * <code>cloneNode</code> method which is, in turn, called by the
     * <code>cloneTree</code> method.
     * <P>
     * For any <code>NodeComponent</code> objects
     * contained by the object being duplicated, each <code>NodeComponent</code>
     * object's <code>duplicateOnCloneTree</code> value is used to determine
     * whether the <code>NodeComponent</code> should be duplicated in the new node
     * or if just a reference to the current node should be placed in the
     * new node.  This flag can be overridden by setting the
     * <code>forceDuplicate</code> parameter in the <code>cloneTree</code>
     * method to <code>true</code>.
     * <br>
     * NOTE: Applications should <i>not</i> call this method directly.
     * It should only be called by the cloneNode method.
     *
     * @param originalNode the original node to duplicate.
     * @param forceDuplicate when set to <code>true</code>, causes the
     *  <code>duplicateOnCloneTree</code> flag to be ignored.  When
     *  <code>false</code>, the value of each node's
     *  <code>duplicateOnCloneTree</code> variable determines whether
     *  NodeComponent data is duplicated or copied.
     * @exception ClassCastException if originalNode is not an instance of 
     *  <code>Shape3D</code>
     *
     * @see Node#cloneTree
     * @see Node#cloneNode
     * @see NodeComponent#setDuplicateOnCloneTree
     */
    public void duplicateNode(Node originalNode, boolean forceDuplicate) {
	checkDuplicateNode(originalNode, forceDuplicate);       
    }



   /**
     * Copies all Shape3D information from
     * <code>originalNode</code> into
     * the current node.  This method is called from the
     * <code>cloneNode</code> method which is, in turn, called by the
     * <code>cloneTree</code> method.<P>
     *
     * @param originalNode the original node to duplicate.
     * @param forceDuplicate when set to <code>true</code>, causes the
     *  <code>duplicateOnCloneTree</code> flag to be ignored.  When
     *  <code>false</code>, the value of each node's
     *  <code>duplicateOnCloneTree</code> variable determines whether
     *  NodeComponent data is duplicated or copied.
     *
     * @exception RestrictedAccessException if this object is part of a live
     *  or compiled scenegraph.
     *
     * @see Node#duplicateNode
     * @see Node#cloneTree
     * @see NodeComponent#setDuplicateOnCloneTree
     */
    void duplicateAttributes(Node originalNode, boolean forceDuplicate) {
  
	super.duplicateAttributes(originalNode, forceDuplicate);

	Shape3DRetained attr = (Shape3DRetained) originalNode.retained;
	Shape3DRetained rt = (Shape3DRetained) retained;

	rt.setAppearance((Appearance) getNodeComponent(
						       attr.getAppearance(), 
						       forceDuplicate,
						       originalNode.nodeHashtable));
	int num = attr.numGeometries(id);
	if (num > 0) {
	    rt.setGeometry((Geometry) getNodeComponent(
					       attr.getGeometry(0, id),
					       forceDuplicate, 
					       originalNode.nodeHashtable), 0);
	    for(int i=1; i< num; i++) {
		rt.addGeometry((Geometry) getNodeComponent(
						   attr.getGeometry(i, id),
						   forceDuplicate, 
						   originalNode.nodeHashtable));
	    }
	}

	rt.setCollisionBounds(attr.getCollisionBounds(id));
    }

    /**
     * See parent class for the documentation on getBounds().
     */
    public Bounds getBounds() {
	if (isLiveOrCompiled()) {
	    if(!this.getCapability(ALLOW_BOUNDS_READ)) {
		throw new CapabilityNotSetException(J3dI18N.getString("Node2"));
	    }
	} else {
	    // this will throw a SceneGraphCycleException if there is
	    // a cycle
	    checkForCycle();
	}

	return ((Shape3DRetained)this.retained).getBounds();
    }
    

}