Example usage for javax.media.j3d Group numChildren

Introduction

In this page you can find the example usage for javax.media.j3d Group numChildren.

Prototype

public int numChildren() 

Source Link

Document

Returns a count of this group node's children.

Usage

From source file:TreePrinter.java

private void printNode(Object o, int indent, Set sharedGroups) {
    for (int i = 0; i < indent; i++)
        printStream.print(">");
    printStream.print(nodeString(o) + ": ");
    if (o instanceof SceneGraphObject) {
        SceneGraphObject sgo = (SceneGraphObject) o;
        int capBits = 0;
        // TODO: how to make sure we always check all the valid bits?
        for (int i = 0; i < 64; i++) {
            if (sgo.getCapability(i)) {
                capBits |= 1 << i;
            }/*from w  w  w .  ja v a2  s. com*/
        }
        printStream.print("capBits:Ox" + Integer.toHexString(capBits));
        if (o instanceof javax.media.j3d.Group) {
            javax.media.j3d.Group g = (javax.media.j3d.Group) o;
            int numChildren = 0;
            try {
                numChildren = g.numChildren();
            } catch (CapabilityNotSetException e) {
                //anyone who is using treePrinter, is debugging, so it is
                //alright to blindly allow read. you should first detach
                //browser.curScene, print the tree, then add it back to
                //browser.locale when finished.
                g.setCapability(javax.media.j3d.Group.ALLOW_CHILDREN_READ);
                numChildren = g.numChildren();
                //System.out.println("Can't read children on group");
                //return;
            }
            printStream.print(" children:" + numChildren);
            if (o instanceof TransformGroup) {
                Transform3D transform = new Transform3D();
                Transform3D identity = new Transform3D();
                TransformGroup t = (TransformGroup) o;
                t.getTransform(transform);
                // TODO: use getBestType() when implemented
                if (transform.equals(identity)) {
                    printStream.print(" xform:IDENTITY ");
                } else {
                    printStream.print(" xform:NON-IDENTITY ");
                }
            }
        } else if (o instanceof Link) {
            Link l = (Link) o;
            SharedGroup sg = l.getSharedGroup();
            printStream.print(" sg:" + nodeString(sg));
            sharedGroups.add(sg);
        } else {
            printStream.print(": leaf");
        }
    }
    printStream.println();
}

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