graphics2d

I am experiencing an issue with rotating an Image with the Graphics2D rotate method. Here's an image of the issue I'm having: As I move the ball, the image gets completely distorted as it rotates. Here's my rotate method: public static void rotate(BufferedImage img, Rectangle rect, int degrees) { Graphics2D g = (Graphics2D) img.createGraphics(); g.rotate(degrees, rect.x + rect.width/2, rect.y + rect.height/2); g.drawImage(img, rect.x, rect.y, rect.width, rect.height, null); g.dispose(); } Is there anything I can do to avoid the quality loss? So currently as the ball moves, you rotate the image

When drawing polygons, Java2D leaves off the right and bottom edges. I understand why this is done. However, I would like to draw something that includes those edges. One thing that occurred to me was to follow fillPolygon with drawPolygon with the same coordinates, but this appears to leave a gap. (See the little triangular image at the bottom.) There are two possibilities, but I can't tell which. To enable antialiasing, I'm doing this: renderHints = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); renderHints.put(RenderingHints.KEY_RENDERING,

I want to represent a timer by having a filled circle which is fully drawn over the course of the timer by segment. I.e. If the circle is filled in every 1 second for a timer of 4 seconds the first will show a quarter of a circle then a half then three-quarters and finally a full circle. Is there a way to draw these slices of a circle in java? I've looked into arbitrary shapes in the graphics API but not sure if this is the right way to go or if there is something written into the language which can easily produce these type of shapes? Any help much appreciated. Yes, it's possible. Yes,

I'm trying to write application which need to draw many strings using Graphics2D class in Java. I need to get sizes of each String object (to calculate exact position of each string). There is so many strings that it should be done before the paint() method is called and only once at the beginning of my program (so then I don't have Graphics2D object yet). I know that there is a method Font.getStringBounds() but it needs a FontRenderContext object as a parameter. When i tried to create my own object: FontRenderContext frc = new FontRenderContext(MyFont.getTransform(), true, true) and then

I need to create a rectangular BufferedImage with a specified background color, draw some pattern on the background and save it to file. I don't know how to create the background. I am using a nested loop: BufferedImage b_img = ... for every row for every column setRGB(r,g,b); But it's very slow when the image is large. How to set the color in a more efficient way? Get the graphics object for the image, set the current paint to the desired colour, then call fillRect(0,0,width,height) . BufferedImage b_img = ... Graphics2D graphics = b_img.createGraphics(); graphics.setPaint ( new Color ( r, g,

Consider a 2D grid with n rows and n columns (here 75x75). The symbols (tokens) are drawn in each cell on mouse click. The code below is used to draw grid lines and symbols within cells: class DrawCanvas extends JPanel{ @Override public void paintComponent(Graphics g){ super.paintComponent(g); setBackground(Color.WHITE); //Lines g.setColor(Color.BLACK); for(int ligne = 1; ligne < ROWS; ++ligne){ g.fillRoundRect(0, cellSize * ligne - halfGridWidth, canvasWidth - 1, gridWidth, gridWidth, gridWidth); } for(int colonne = 1; colonne < COLS; ++colonne){ g.fillRoundRect(cellSize * colonne -

I am trying to complete an example that draws graphics and writes them to PDF, but I keep getting errors that the PDF has no pages. if I add something simple with document.add() after opening it works fine, I just never see the graphics. Here is my code: Document document = new Document(); PdfWriter writer = new PdfWriter(); response.setContentType("application/pdf"); response.setHeader("Content-Disposition", " attachment; filename=\"Design.pdf\""); writer = PdfWriter.getInstance(document, response.getOutputStream()); document.open(); PdfContentByte cb = writer.getDirectContent(); Graphics2D