I have a question about generalpath().

I am implementing a clock in java. I have a formula to determine the position of the hands. It is degrees * (2 pi / 360) and then the cos and sin is taken. My problem is when using the following code:

public void paintComponent(Graphics g) { Graphics2D g2 = (Graphics2D) g; super.paintComponent(g2); // draw the ticks int tickLen = 10; int medTickLen = 15; int longTickLen = 20; int r = width/2; //radius of clock int cX = x+(width)/2; int cY = y+(width)/2; Stroke tickStroke = new BasicStroke(2f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 1f); GeneralPath ticksPath = new GeneralPath(); Ellipse2D.Double clockFace = new Ellipse2D.Double(this.x,this.y,width, width); g2.setColor(Color.WHITE); g2.fill(clockFace); for ( int i=1; i<= 60; i++){ // default tick length is short int len = tickLen; if ( i % 15 == 0 ){ // Longest tick on quarters (every 15 ticks) len = longTickLen; } else if ( i % 5 == 0 ){ // Medium ticks on the '5's (every 5 ticks) len = medTickLen; } double di = (double)i; // tick num as double for easier math // Get the angle from 12 O'Clock to this tick (radians) double angleFrom12 = di/60.0*2.0*Math.PI; // Get the angle from 3 O'Clock to this tick // Note: 3 O'Clock corresponds with zero angle in unit circle // Makes it easier to do the math. double angleFrom3 = Math.PI/2.0-angleFrom12; // Move to the outer edge of the circle at correct position // for this tick. ticksPath.moveTo( (float)(cX+Math.cos(angleFrom3)*r), (float)(cY-Math.sin(angleFrom3)*r) ); // Draw line inward along radius for length of tick mark ticksPath.lineTo( (float)(cX+Math.cos(angleFrom3)*(r-len)), (float)(cY-Math.sin(angleFrom3)*(r-len)) );

} // Draw the full shape onto the graphics context. g2.setColor(Color.BLACK); g2.setStroke(tickStroke); g2.draw(ticksPath); g2.setColor(Color.RED); for ( int i=1; i<=12; i++){ String numStr = ""+i; FontMetrics fm = g2.getFontMetrics(g2.getFont()); int charWidth = fm.stringWidth(numStr); int charHeight = fm.getHeight(); double di = (double)i; double angleFrom12 = di/12.0*2.0*Math.PI; double angleFrom3 = Math.PI/2.0-angleFrom12; int tx = (int)(Math.cos(angleFrom3)*(r-longTickLen-charWidth)); int ty = (int)(-Math.sin(angleFrom3)*(r-longTickLen-charHeight)); g2.drawString(numStr, (int)cX+tx, (int)cY+ty); } GeneralPath newPath = new GeneralPath(); double minute = 180 * (2 * Math.PI/360); double minX = Math.cos(minute); double minY = Math.sin(minute); newPath.moveTo(r, r); newPath.lineTo(minX , minY ); g2.setColor(Color.BLUE); g2.draw(newPath); /* double minuteHand = 55/60.0*2.0*Math.PI; double minute = Math.PI/2.0-minuteHand; GeneralPath minutePath = new GeneralPath(); minutePath.moveTo(r, r); minutePath.lineTo((float)cX+Math.cos(minute)*450,(float) (cY+Math.sin(minute)*450)); g2.draw(minutePath); */ } private int x; private int y; private int width; }

The position of the line from the generalpath only moves with very large values. WIth smaller values it always shows the line in the same place. Is there a way to scale this down so that my formula will accurately place the hands?

Thanks.