I think I found a solution by researching and putting bits and pieces together from too many Google searches. Here it is, comments and all: private BufferedImage toCompatibleImage(BufferedImage image) { // obtain the current system graphical settings GraphicsConfiguration gfxConfig = GraphicsEnvironment. getLocalGraphicsEnvironment().getDefaultScreenDevice(). getDefaultConfiguration(); /* * if image is already compatible and optimized for current system … Read more
Here’s a simple example of rotating text. Addendum: You’ll want to adjust the the text’s radial starting point by stringWidth(name[n]). Your program appears to be rotating individual characters in a effort to follow the arc, while the example appears to be drawing the text in a straight line tangent to the arc. The latter approach … Read more
The short answer to your question is that “opaque” is defined in English as completely non-transparent. Therefore an opaque component is one which paints its entire rectangle, and every pixel is not at all translucent to any degree. However, the Swing component opacity API is one of those mis-designed and therefore often mis-used APIs. What’s … Read more
One way is to use an AffineTransform (this variant also fades the color). import java.awt.*; import java.awt.geom.AffineTransform; import java.awt.image.BufferedImage; import javax.swing.*; import java.io.File; import javax.imageio.ImageIO; public class StretchText { public static void main(String[] args) throws Exception { // used to stretch the graphics instance sideways AffineTransform stretch = new AffineTransform(); int w = 640; // … Read more
Assuming you actually want smooth (non-aliased) text, TextLayout may make this easier. The FontRenderContext constructor can manage the anti-aliasing and fractional metrics settings. Addendum: Using g2d.setColor(Color.blue) seems to produce the expected effect. Addendum: On Mac OS X, the Pixie application in /Developer/Applications/Graphics Tools/ is convenient for examining the anti-alias pixels. On other platforms, Zoom may … Read more
This is a big subject. You might find Depixelizing Pixel Art1 by Johannes Kopf & Dani Lischinski useful: it’s readable, recent, includes a summary of previous work, and explains their approach in detail. See also slides covering similar background and video(!). Here are some screenshots from the document of ‘nearest neighbor’ vs. ‘their technique’.
..there will be complex corners and not everything will be rectangle. This could be achieved by drawing and dealing with Shape and Area instances. E.G. Yellow is a little animated ‘player’. The bounds of the image represent walls that contain the path of the player (it bounces off them). Obstacles are painted green when not … Read more
Your question have the answer, you don’t have a main method in your code/class which you are trying to execute. As you mentioned in your comment you are new to java use IDEs like Eclipse, Netbeans or IntelliJ IDEA where they gives you proper warnings and hints.
Basically, you draw what ever you want around the center of the component, based on it’s width and height public void paintComponent(Graphics g) { super.paintComponent(g); int width = getWidth() – 1; int height = getHeight() – 2; g.drawLine(width / 2, 0, width / 2, height); g.drawLine(0, height / 2, width, height / 2); } Check … Read more