boofcv.struct.geo.ScaleTranslateRotate2D Maven / Gradle / Ivy

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BoofCV is an open source Java library for real-time computer vision and robotics applications.

There is a newer version: 1.1.5

/*
 * Copyright (c) 2022, 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.geo;

import lombok.Getter;
import lombok.Setter;

/**
 * Motion model for scale, translation, and rotation:
 *
 * (x',y') = (x,y)*R*scale + (tranX , tranY)
 *
 * R is rotation matrix.
 *
 * @author Peter Abeles
 */
public class ScaleTranslateRotate2D {
	/** Scaling */
	public @Getter @Setter double scale;
	/** Translation along x and y axis */
	public @Getter @Setter double transX, transY;
	/** Angle of rotation */
	public @Getter @Setter double theta;

	public ScaleTranslateRotate2D( double theta, double scale, double transX, double transY ) {
		this.theta = theta;
		this.scale = scale;
		this.transX = transX;
		this.transY = transY;
	}

	public ScaleTranslateRotate2D() {}

	public void zero() {
		scale = transX = transY = theta = 0;
	}

	public ScaleTranslateRotate2D setTo( ScaleTranslateRotate2D src ) {
		this.theta = src.theta;
		this.scale = src.scale;
		this.transX = src.transX;
		this.transY = src.transY;
		return this;
	}
}