Please help me Image rotation
I want to develop new iPhone application. I am a new iPhone developer . my application have one UIImage it will rotating on touch base . when user Touch and drag the image it will rotating touch base .. When user continues touch drag it will rotating faster ... just like fan .. base on speed .. when user touch the image stop the rotation....
i spent lot more time in this application... I got some example form this forum it is not realistic .... could any help for me........ with example ...'
Nalan.
Hello DUbbz
This is a my code :
-(void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
timerIsCountingDown = NO;
currentTimerValue = 0;
NSArray *myTouches = [event touchesForView:self] allObjects;
UITouch *t = myTouches objectAtIndex:0;
Begantime = t.timestamp;
CGPoint pointInView = [touches anyObject] locationInView:self;
touchXStart = pointInView.x;
touchYStart = pointInView.y;
-(void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event
degree = self angle:touchXStart y0:touchYStart x1:touchXEnd y1:touchYEnd;
timerIsCountingDown = YES;
UIView beginAnimations:nil context:NULL;
UIView setAnimationBeginsFromCurrentState:YES;
//UIView setAnimationDuration:0.05;
UIView setAnimationDelegate:self;
UIView setAnimationCurve:UIViewAnimationCurveEaseIn;
// timer = NSTimer scheduledTimerWithTimeInterval: 0.02 target: self selector:@selector(hadleTimer:) userInfo: nil repeats: YES;
angle += 10;
if (angle > 6.283)
angle = 0;
CGAffineTransform transform=CGAffineTransformMakeRotation(angle);
imageView.transform = transform;
imageView.alpha = 1.0;
UIView commitAnimations;
-(void)touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event
NSArray *myTouches = [event touchesForView:self] allObjects;
UITouch *t = myTouches objectAtIndex:0;
Endtime = t.timestamp;
CGPoint pointInView = [touches anyObject] locationInView:self;
touchXEnd = pointInView.x;
touchYEnd = pointInView.y;
CGFloat time = Begantime - Endtime;
CGFloat speed = distance / time;
NalaN
Thank you for your reply .... Rotating image clockwise ant anticlockwise ...
you are a iPhone developer .... please keep touch with me... I am new iPhone developer .. i have lot of confusion with the IPhone SDk.. could you please send me iPhone reference free ebook with example ...... But xcode documentation is very confused... .. I lost month i spent in this concept.....
NalaN.
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1 down vote favorite
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1 down vote favoriteHuh?
..Please i have trimed down the code for easy reading. ..Perhaps I am just lazy, but I don't actually like reading code until I've seen it compile in my editor & run. That is why I will advise that for better help sooner, post an SSCCE. For SSCCEs that use images, either generate an image in the code, or hot-link to an image available on the internet. I offer some [images at my site|http://pscode.org/media/#image] that you can hot-link to. -
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super.addNotify();
setTransform();
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2.drawRenderedImage(image, at);
g2.setPaint(Color.red);
g2.draw(bounds);
public Dimension getPreferredSize() {
return new Dimension((int)(imageLoc.x + Math.ceil(bounds.width)) + PAD,
(int)(imageLoc.y + Math.ceil(bounds.height)) + PAD);
private void update() {
setTransform();
revalidate();
repaint();
private void setTransform() {
int iw = image.getWidth();
int ih = image.getHeight();
double cos = Math.abs(Math.cos(theta));
double sin = Math.abs(Math.sin(theta));
double width = iw*cos + ih*sin;
double height = ih*cos + iw*sin;
at.setToTranslation(imageLoc.x, imageLoc.y);
at.rotate(theta, scale*iw/2.0, scale*ih/2.0);
at.scale(scale, scale);
double x = imageLoc.x - scale*(width - iw)/2.0;
double y = imageLoc.y - scale*(height - ih)/2.0;
bounds.setFrame(x, y, scale*width, scale*height);
private void initImage() {
int w = 240, h = 180;
int type = BufferedImage.TYPE_INT_RGB;
image = new BufferedImage(w,h,type);
Graphics2D g2 = image.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2.setBackground(new Color(220,220,240));
g2.clearRect(0,0,w,h);
g2.setPaint(Color.red);
g2.draw(new CubicCurve2D.Double(0, h, w*4/3.0, h/4.0,
-w/3.0, h/4.0, w, h));
g2.setPaint(Color.green.darker());
g2.draw(new Rectangle2D.Double(w/3.0, h/3.0, w/3.0, h/3.0));
g2.dispose();
private JPanel getControls() {
JSlider rotateSlider = new JSlider(-180, 180, 0);
rotateSlider.setMajorTickSpacing(30);
rotateSlider.setMinorTickSpacing(10);
rotateSlider.setPaintTicks(true);
rotateSlider.setPaintLabels(true);
rotateSlider.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
int value = ((JSlider)e.getSource()).getValue();
theta = Math.toRadians(value);
update();
rotateSlider.setBorder(BorderFactory.createTitledBorder("theta"));
int min = 50, max = 200, inc = 25;
JSlider zoomSlider = new JSlider(min, max, 100);
zoomSlider.setMajorTickSpacing(inc);
zoomSlider.setMinorTickSpacing(5);
zoomSlider.setPaintTicks(true);
zoomSlider.setLabelTable(getLabelTable(min, max, inc));
zoomSlider.setPaintLabels(true);
zoomSlider.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
int value = ((JSlider)e.getSource()).getValue();
scale = value/100.0;
update();
zoomSlider.setBorder(BorderFactory.createTitledBorder("scale"));
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 1.0;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridwidth = GridBagConstraints.REMAINDER;
panel.add(rotateSlider, gbc);
panel.add(zoomSlider, gbc);
return panel;
private Hashtable getLabelTable(int min, int max, int inc) {
Hashtable<Integer,JComponent> table = new Hashtable<Integer,JComponent>();
for(int j = min; j <= max; j += inc) {
JLabel label = new JLabel(String.format("%.2f", j/100.0));
table.put(new Integer(j), label);
return table;
public static void main(String[] args) {
RotationZoom test = new RotationZoom();
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new JScrollPane(test));
f.getContentPane().add(test.getControls(), "Last");
f.setSize(500,500);
f.setLocation(200,100);
f.setVisible(true);
} -
Cant' move images from frame to frame inside a Grid in InDesign. Please Help
When creating a grid in indesign there is an option to move images from frame to frame, and having them rotate around the frames to see where each image is best to be placed. Example I created a grid with 6 images (2 rows and 3 columns) and now i want image 1 to be where image 6 is. I know there's a way by hitting the arrows and some other keys and have all the images start rotating. I did it once I just can't remember. Please help. How do you move the an image from one frame to another frame without having to go to edit place?
Thanks,
PaolaSwapping images
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