Tag: rotation

How can I rotate multiple graphics shapes together in java without changing their position on the frame or their position relative to eachother?

I have used several java.awt.Rectangle, java.awt.Polygon, and java.awt.geom.Ellipse2D shapes together and I want to rotate them with eachother and I also want to have them keep their location on the JFrame. When I use g2D.rotate(Math.toRadians(rotation)), the shapes move on the JFrame and they are no longer close together. How can I make it so that all of the shapes keep

Java – generate and rotate matrix

java matrix methods rotation

recently I’m trying to learn Java a bit and currently, I’m working on a simple program that should generate a matrix and then rotate it. I’m stuck at the first part. What exactly is the problem? The logic of my code seems to be fine, but anyway program is returning not what I would expect. The code: Output: Please, enter

Java Rotating Icon in JLabel

icons image java jlabel rotation

Hi I’m having a problem trying to rotate an image inside a JLabel. I got this code from StackOverflow, and I’m trying to change it a little bit so that instead of the image rotating in a Tab, it is rotating within a JLabel. This is working, the image is rotating. However when i change it to this. This stopped

Java – Asteroids – acceleration in two dimensions

game-physics java rotation

I am currently writing Asteroids for extra credit in my computer science class, following a very loose guide that provided some starter code. I have a ship and I can use key presses to change its position. The starter code provided a method of drawing the ship based on a Point position. I was then given this How am I

How to improve image rotation quality in Graphics2D?

graphics2d image image-rotation java rotation

Currently I am using this code (which I found here) to rotate images in Java. The code works well, but I am not satisfied with the quality of the rotated image. How can I improve it? Do it need a separate library that? Answer You should set RenderingHints.KEY_INTERPOLATION and RenderingHints.KEY_RENDERING as well. Here is the complete working code:

How to rotate an array counter clockwise and invert it vertically?

java multidimensional-array rotation

Say each pixel in this picture(fig 1) is an element in an array. How would I rotate it 90 degress counter-clockwise(fig 2) and invert it vertically(fig 3)? figure 1: figure 2: figure 3: My current codes are: The invert does the same function as the rotate though. Any help? Answer seems like you are trying to transpose the array (fig3

Java: Rotating Images

graphics2d image java rotation swing

I need to be able to rotate images individually(in java). The only thing I have found so far is g2d.drawImage(image, affinetransform, ImageObserver ). Unfortunately, I need to draw the image at a specific point, and there is no method with an argument that 1.rotates the image separately and 2. allows me to set the x and y. any help is