[java] Java: Rotating Images

Sorry, but all the answers are difficult to understand for me as a beginner in graphics...

After some fiddling, this is working for me and it is easy to reason about.

@Override
public void draw(Graphics2D g) {
    AffineTransform tr = new AffineTransform();
    // X and Y are the coordinates of the image
    tr.translate((int)getX(), (int)getY());
    tr.rotate(
            Math.toRadians(this.rotationAngle),
            img.getWidth() / 2,
            img.getHeight() / 2
    );

    // img is a BufferedImage instance
    g.drawImage(img, tr, null);
}

I suppose that if you want to rotate a rectangular image this method wont work and will cut the image, but I thing you should create square png images and rotate that.

Examples related to java

Under what circumstances can I call findViewById with an Options Menu / Action Bar item? How much should a function trust another function How to implement a simple scenario the OO way Two constructors How do I get some variable from another class in Java? this in equals method How to split a string in two and store it in a field How to do perspective fixing? String index out of range: 4 My eclipse won't open, i download the bundle pack it keeps saying error log

Examples related to image

Reading images in python Numpy Resize/Rescale Image Convert np.array of type float64 to type uint8 scaling values Extract a page from a pdf as a jpeg How do I stretch an image to fit the whole background (100% height x 100% width) in Flutter? Angular 4 img src is not found How to make a movie out of images in python Load local images in React.js How to install "ifconfig" command in my ubuntu docker image? How do I display local image in markdown?

Examples related to swing

Calling another method java GUI Read input from a JOptionPane.showInputDialog box Call japplet from jframe Java JTable getting the data of the selected row What does .pack() do? How to add row of data to Jtable from values received from jtextfield and comboboxes How can I check that JButton is pressed? If the isEnable() is not work? Load arrayList data into JTable How to draw a circle with given X and Y coordinates as the middle spot of the circle? Simplest way to set image as JPanel background

Examples related to rotation

Setting device orientation in Swift iOS Statically rotate font-awesome icons CSS3 transition on click using pure CSS JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images Rotate an image in image source in html Rotate a div using javascript HTML5 Canvas Rotate Image CSS3 Rotate Animation CSS rotation cross browser with jquery.animate() Rotating a Vector in 3D Space

Examples related to graphics2d

Triangle Draw Method Drawing a simple line graph in Java Java: Rotating Images