org.bytedeco.javacpp

Class opencv_core.RotatedRect

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.javacpp.FloatPointer

org.bytedeco.javacpp.opencv_core.RotatedRect

All Implemented Interfaces:

AutoCloseable

Enclosing class:

opencv_core

@Namespace(value="cv")
@NoOffset
public static class opencv_core.RotatedRect
extends FloatPointer

\brief The class represents rotated (i.e. not up-right) rectangles on a plane.

Each rectangle is specified by the center point (mass center), length of each side (represented by cv::Size2f structure) and the rotation angle in degrees.

The sample below demonstrates how to use RotatedRect:

Mat image(200, 200, CV_8UC3, Scalar(0));
    RotatedRect rRect = RotatedRect(Point2f(100,100), Size2f(100,50), 30);

    Point2f vertices[4];
    rRect.points(vertices);
    for (int i = 0; i < 4; i++)
        line(image, vertices[i], vertices[(i+1)%4], Scalar(0,255,0));

    Rect brect = rRect.boundingRect();
    rectangle(image, brect, Scalar(255,0,0));

    imshow("rectangles", image);
    waitKey(0);


\sa CamShift, fitEllipse, minAreaRect, CvBox2D

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
opencv_core.RotatedRect() various constructors
opencv_core.RotatedRect(long size) Native array allocator.
opencv_core.RotatedRect(opencv_core.Point2f point1, opencv_core.Point2f point2, opencv_core.Point2f point3) Any 3 end points of the RotatedRect.
opencv_core.RotatedRect(opencv_core.Point2f center, opencv_core.Size2f size, float angle)
opencv_core.RotatedRect(Pointer p) Pointer cast constructor.

Method Summary

Methods

Modifier and Type	Method and Description
float	angle()
opencv_core.RotatedRect	angle(float angle)
opencv_core.Rect	boundingRect() returns the minimal up-right rectangle containing the rotated rectangle
opencv_core.Point2f	center()
opencv_core.RotatedRect	center(opencv_core.Point2f center)
void	points(opencv_core.Point2f pts) returns 4 vertices of the rectangle
opencv_core.RotatedRect	position(long position)
opencv_core.Size2f	size()
opencv_core.RotatedRect	size(opencv_core.Size2f size)

Methods inherited from class org.bytedeco.javacpp.FloatPointer

asBuffer, capacity, get, get, get, get, limit, put, put, put, put

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asByteBuffer, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, hashCode, isNull, limit, maxBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, position, put, setNull, sizeof, toString, totalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

opencv_core.RotatedRect

public opencv_core.RotatedRect(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

opencv_core.RotatedRect

public opencv_core.RotatedRect(long size)

Native array allocator. Access with Pointer.position(long).

opencv_core.RotatedRect

public opencv_core.RotatedRect()

various constructors

opencv_core.RotatedRect

public opencv_core.RotatedRect(@Const@ByRef
                       opencv_core.Point2f center,
                       @Const@ByRef
                       opencv_core.Size2f size,
                       float angle)

Parameters:

center - The rectangle mass center.

size - Width and height of the rectangle.

angle - The rotation angle in a clockwise direction. When the angle is 0, 90, 180, 270 etc., the rectangle becomes an up-right rectangle.

opencv_core.RotatedRect

public opencv_core.RotatedRect(@Const@ByRef
                       opencv_core.Point2f point1,
                       @Const@ByRef
                       opencv_core.Point2f point2,
                       @Const@ByRef
                       opencv_core.Point2f point3)

Any 3 end points of the RotatedRect. They must be given in order (either clockwise or anticlockwise).

Method Detail

position

public opencv_core.RotatedRect position(long position)

Overrides:

position in class FloatPointer

points

public void points(opencv_core.Point2f pts)

returns 4 vertices of the rectangle

Parameters:

pts - The points array for storing rectangle vertices.

boundingRect

@ByVal
public opencv_core.Rect boundingRect()

returns the minimal up-right rectangle containing the rotated rectangle

center

@ByRef
public opencv_core.Point2f center()

center

public opencv_core.RotatedRect center(opencv_core.Point2f center)

size

@ByRef
public opencv_core.Size2f size()

size

public opencv_core.RotatedRect size(opencv_core.Size2f size)

angle

public float angle()

angle

public opencv_core.RotatedRect angle(float angle)