Examples with BoundingSphere org.rajawali3d.bounds.BoundingSphere used on opensource projects

Example 1 with BoundingSphere

use of org.rajawali3d.bounds.BoundingSphere in project Rajawali by Rajawali.

the class A_nAABBTree method grow.

/**
	 * Grows the tree.
	 */
protected void grow() {
    RajLog.d("[" + this.getClass().getName() + "] Growing tree: " + this);
    Vector3 min = new Vector3(Float.MAX_VALUE, Float.MAX_VALUE, Float.MAX_VALUE);
    Vector3 max = new Vector3(-Float.MAX_VALUE, -Float.MAX_VALUE, -Float.MAX_VALUE);
    //Get a full list of all the members, including members in the children
    ArrayList<IGraphNodeMember> members = getAllMembersRecursively(true);
    int members_count = members.size();
    for (int i = 0; i < members_count; ++i) {
        IBoundingVolume volume = members.get(i).getTransformedBoundingVolume();
        Vector3 test_against_min = null;
        Vector3 test_against_max = null;
        if (volume == null) {
            ATransformable3D object = (ATransformable3D) members.get(i);
            test_against_min = object.getPosition();
            test_against_max = test_against_min;
        } else {
            if (volume instanceof BoundingBox) {
                BoundingBox bb = (BoundingBox) volume;
                test_against_min = bb.getTransformedMin();
                test_against_max = bb.getTransformedMax();
            } else if (volume instanceof BoundingSphere) {
                BoundingSphere bs = (BoundingSphere) volume;
                Vector3 bs_position = bs.getPosition();
                double radius = bs.getScaledRadius();
                Vector3 rad = new Vector3();
                rad.setAll(radius, radius, radius);
                test_against_min = Vector3.subtractAndCreate(bs_position, rad);
                test_against_max = Vector3.addAndCreate(bs_position, rad);
            } else {
                RajLog.e("[" + this.getClass().getName() + "] Received a bounding box of unknown type.");
                throw new IllegalArgumentException("Received a bounding box of unknown type.");
            }
        }
        if (test_against_min != null && test_against_max != null) {
            if (test_against_min.x < min.x)
                min.x = test_against_min.x;
            if (test_against_min.y < min.y)
                min.y = test_against_min.y;
            if (test_against_min.z < min.z)
                min.z = test_against_min.z;
            if (test_against_max.x > max.x)
                max.x = test_against_max.x;
            if (test_against_max.y > max.y)
                max.y = test_against_max.y;
            if (test_against_max.z > max.z)
                max.z = test_against_max.z;
        }
    }
    mMin.setAll(min);
    mMax.setAll(max);
    mTransformedMin.setAll(min);
    mTransformedMax.setAll(max);
    calculatePoints();
    calculateChildSideLengths();
    if (mSplit) {
        for (int i = 0; i < CHILD_COUNT; ++i) {
            ((Octree) mChildren[i]).setChildRegion(i, mChildLengths);
        }
    }
    for (int i = 0; i < members_count; ++i) {
        internalAddObject(members.get(i));
    }
}

Example 2 with BoundingSphere

use of org.rajawali3d.bounds.BoundingSphere in project Rajawali by Rajawali.

the class A_nAABBTree method setBounds.

/**
	 * Sets the bounding volume of this node. This should only be called
	 * for a root node with no children. This sets the initial root node
	 * to have a volume ~8x the member, centered on the member.
	 * 
	 * @param object IGraphNodeMember the member we will be basing
	 * our bounds on. 
	 */
protected void setBounds(IGraphNodeMember member) {
    //RajLog.d("[" + this.getClass().getName() + "] Setting bounds based on member: " + member);
    if (mMembers.size() != 0 && mParent != null) {
        return;
    }
    IBoundingVolume volume = member.getTransformedBoundingVolume();
    BoundingBox bcube = null;
    BoundingSphere bsphere = null;
    Vector3 position = member.getScenePosition();
    double span_y = 0;
    double span_x = 0;
    double span_z = 0;
    if (volume == null) {
        span_x = 5.0;
        span_y = 5.0;
        span_z = 5.0;
    } else {
        if (volume instanceof BoundingBox) {
            bcube = (BoundingBox) volume;
            Vector3 min = bcube.getTransformedMin();
            Vector3 max = bcube.getTransformedMax();
            span_x = (max.x - min.x);
            span_y = (max.y - min.y);
            span_z = (max.z - min.z);
        } else if (volume instanceof BoundingSphere) {
            bsphere = (BoundingSphere) volume;
            span_x = 2.0 * bsphere.getScaledRadius();
            span_y = span_x;
            span_z = span_x;
        }
    }
    mMin.x = (float) (position.x - span_x);
    mMin.y = (float) (position.y - span_y);
    mMin.z = (float) (position.z - span_z);
    mMax.x = (float) (position.x + span_x);
    mMax.y = (float) (position.y + span_y);
    mMax.z = (float) (position.z + span_z);
    mTransformedMin.setAll(mMin);
    mTransformedMax.setAll(mMax);
    calculatePoints();
    calculateChildSideLengths();
}

Example 3 with BoundingSphere

use of org.rajawali3d.bounds.BoundingSphere in project Rajawali by Rajawali.

the class RayPickingVisitor method apply.

public void apply(INode node) {
    if (node instanceof Object3D) {
        Object3D o = (Object3D) node;
        if (!o.isVisible() || !o.isInFrustum())
            return;
        if (o.getGeometry().hasBoundingSphere()) {
            BoundingSphere bsphere = o.getGeometry().getBoundingSphere();
            bsphere.calculateBounds(o.getGeometry());
            bsphere.transform(o.getModelMatrix());
            if (intersectsWith(bsphere)) {
                if (mPickedObject == null || (mPickedObject != null && o.getPosition().z < mPickedObject.getPosition().z))
                    mPickedObject = o;
            }
        } else {
            // Assume bounding box if no bounding sphere found.
            BoundingBox bbox = o.getGeometry().getBoundingBox();
            bbox.calculateBounds(o.getGeometry());
            bbox.transform(o.getModelMatrix());
            if (intersectsWith(bbox)) {
                if (mPickedObject == null || (mPickedObject != null && o.getPosition().z < mPickedObject.getPosition().z))
                    mPickedObject = o;
            }
        }
    }
}