boofcv.struct.RectangleRotate_F64 Maven / Gradle / Ivy
/*
* Copyright (c) 2021, 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;
/**
*
* A rectangle which can be rotated. Angle of rotation is relative to +x axis, which is along the rectangle's
* width. +y is along its height. Point of rotation is the rectangle's center.
*
*
* Conversion from rectangle to parent frame:
* x' = x*cos(theta) - y*sin(theta) + cx;
* y' = x*sin(theta) + y*cos(theta) + cy;
* where (x,y) are points in the rectangle's frame.
*
*
* @author Peter Abeles
*/
public class RectangleRotate_F64 {
/** Center point of rectangle */
public double cx, cy;
/** Width of rectangle */
public double width;
/** height of rectangle */
public double height;
/** Angle of rotation about rectangle's center */
public double theta;
public RectangleRotate_F64( double cx, double cy, double width, double height, double theta ) {
this.cx = cx;
this.cy = cy;
this.width = width;
this.height = height;
this.theta = theta;
}
public RectangleRotate_F64() {}
public void set( RectangleRotate_F64 r ) {
this.cx = r.cx;
this.cy = r.cy;
this.width = r.width;
this.height = r.height;
this.theta = r.theta;
}
@Override
public String toString() {
return getClass().getSimpleName() + "( cx = " + cx + " cy = " + cy + " width = " + width + " height = " + height + " theta = " + theta + " )";
}
}