www.pudn.com > QRcode.rar > Axis.java

package jp.sourceforge.qrcode.codec.geom; 
 
import jp.sourceforge.qrcode.codec.reader.QRCodeImageReader; 
 
public class Axis { 
	int sin, cos; 
	int modulePitch; 
	Point origin; 
	 
	public Axis(int sin, int cos, int modulePitch) { 
		this.sin = sin; 
		this.cos = cos; 
		this.modulePitch = modulePitch; 
		this.origin = new Point(); 
	} 
	 
	public void setOrigin(Point origin) { 
		this.origin = origin; 
	} 
	 
	public void setModulePitch(int modulePitch) { 
		this.modulePitch = modulePitch; 
	} 
	 
	public Point translate(Point offset) { 
		int moveX = offset.getX(); 
		int moveY = offset.getY(); 
		return this.translate(moveX, moveY); 
	} 
	 
	public Point translate(int moveX, int moveY) { 
		long dp = QRCodeImageReader.DECIMAL_POINT; 
		Point point = new Point(); 
		int yf = 0; //, xf = 0 ? 
		if (moveX >= 0 & moveY >= 0) yf = 1; 
		else if (moveX < 0 & moveY >= 0) yf = -1; 
		else if (moveX >= 0 & moveY < 0) yf = -1; 
		else if (moveX < 0 & moveY < 0) yf = 1; 
		//System.out.println((modulePitch * moveX) >> dp); 
		int dx = (moveX == 0) ? 0 : (modulePitch * moveX) >> dp; 
		int dy = (moveY == 0) ? 0 : (modulePitch * moveY) >> dp; 
		if (dx != 0 && dy != 0) 
			point.translate((dx * cos - dy * sin) >> dp, yf * (dx * cos + dy * sin) >> dp); 
		else if (dy == 0) {  
			if (dx < 0) yf = -yf; 
			point.translate((dx * cos) >> dp, yf * (dx * sin) >> dp); 
		} 
		else if (dx == 0) { 
			if (dy < 0) yf = -yf; 
			point.translate(-yf * (dy * sin) >> dp, (dy * cos) >> dp);	 
		} 
		point.translate(origin.getX(), origin.getY()); 
 
		return point; 
	} 
}