boofcv.struct.QueueCorner Maven / Gradle / Ivy

/*
 * Copyright (c) 2020, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package boofcv.struct;

import georegression.struct.point.Point2D_I16;
import org.ddogleg.struct.DogArray;
import org.ddogleg.struct.FastAccess;

/**
 * A list that allows fast access to a queue of points that represents corners in an image.
 * All the points are predeclared and recycled.
 *
 * @author Peter Abeles
 */
public class QueueCorner extends DogArray {

	public QueueCorner( int max ) {
		super(max, Point2D_I16::new);
	}

	public QueueCorner() {
		super(10, Point2D_I16::new);
	}

	public final void append( int x, int y ) {
		grow().setTo((short)x, (short)y);
	}

	public final void append( Point2D_I16 pt ) {
		grow().setTo(pt.x, pt.y);
	}

	/**
	 * Adds a copy of each element in 'list' which is owned by 'this' queue
	 *
	 * @param list The list that is to added and copied
	 */
	public final void appendAll( FastAccess list ) {
		int sizeBefore = size;
		resize(sizeBefore + list.size);
		for (int i = 0; i < list.size; i++) {
			get(sizeBefore + i).setTo(list.get(i));
		}
	}
}