image-rotation

问题 I have Google Maps icons which I need to rotate by certain angles before drawing on the map using MarkerImage. I do the rotation on-the-fly in Python using PIL, and the resulting image is of the same size as the original - 32x32. For example, with the following default Google Maps marker: , a 30 degrees conter-clockwise rotation is achieved using the following python code: # full_src is a variable holding the full path to image # rotated is a variable holding the full path to where the

问题 This question already has answers here : Rotate image by 90, 180 or 270 degrees (10 answers) Closed 4 years ago . I'm capturing image from webcam and I need to rotate it by right angle. I found myself theese functions: getRotationMatrix2D - to create rotation matrix (whatever it is) transform - transform one matrix to another by rotation matrix But, I don't get anything but black area. This is my code: if(rotate_button.click%4>0) { double angle = (rotate_button.click%4)*90; //button

问题 I am making a winforms application. One of the features I hope to implement is a rotating gear on the home form. When the home form is loaded, you should hover over the picture of the gear, and it should rotate in place. But all I have so far is the RotateFlip and that just flips the picture. Is there a way to make the gear turn in place when the mouse is hovering over it? The code I have so far is: Bitmap bitmap1; public frmHome() { InitializeComponent(); try { bitmap1 = (Bitmap)Bitmap

问题 I have got class called Airplane . Inside this class i have got variable img which is a BufferedImage type. What is more i have got class WorldMap which overrides function paintComponent(Graphics g) : @Override public void paintComponent(Graphics g) { Graphics2D g2d = (Graphics2D) g; g2d.drawImage(mapa, 0, 0, getWidth(), getHeight(), null); drawAirplanes(g2d); } Function drawAirplanes() look like this: private void drawAirplane(Graphics2D g){ for(Samolot i: s){ i.rotateAirplane(); g.drawImage

问题 i'm developing an app i which users can upload images from the camera to an event, i did it in the usual way, but when i got to the part of rotating it according to the Exif interface i would sometimes get OOM errors, which were really frustrating, i decided to try and use JniBitmapOperations library which seemed to work fine (i wouldn't get OOM errors) but when trying to rotate the image it gets corrupt and messed up :/ heres pictures as you can see the picture above is rotated to the

问题 I have an effect that when you hover over this one particular area, it raises it from the bottom, rotates the images, and scrunches them together. It is supposed to emulate "fanning out" a hand of playing cards. It all works well and good except I need them to be centered. The only way I can think how to do that is to measure the farthest corner on each side, but I don't know how to do that. Anyone have any suggestions? I'm using jQuery 1.7. Link to example: http://aws.redemptionconnect.com

问题 I have an image button that I want to rotate when the orientation of the device changes. How can I rotate the image with some animation or transition ? 回答1: try this code snippet. rotate.xml <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <rotate android:fromDegrees="0" android:toDegrees="360" android:pivotX="50%" android:pivotY="50%" android:repeatCount="0" android:duration="2000" /> </set> rorate_anticlockwise.xml <?xml version="1.0"

问题 I'm new to SWIFT and I'm practicing to learn but I'm having some difficulty with something. I have an image in an UIImageview defined at the Main.storyboard that I need to rotate. I have an IBOutlet defined as: @IBOutlet weak var imageToRotate: UIImageView! I was trying to rotate it with the center of rotation on the rightmost side and middle of height and as per the apple documentation and some posts in here I used the anchorPoint: imageToRotate.layer.anchorPoint = CGPointMake( 1.0, 0.5 )

问题 i have a problem with jQuery fadeIn(or fadeOut) method. i build an article rotator , all works fine but there is a problem when the page is scrolled bottom and the article rotate, The fadeIn (or fadeOut) method causes a scroll to the article position. I think that these methods ,changes the css top property of body, but I do not know how to avoid this! Any idea??? here the code function rotate(direction) { if($('articles > article:visible:first') == 'undefined') $currentArticle = $('articles

问题 I'm trying to create an image rotator that displays certain images at certain times, but also rotates at other times in the day. When I first created it, I just had it rotate every three seconds. That worked fine. But once I added the code to make a different image show up at different times, it quit working all together. Part of the problem is I'm confused about where I should put the setInterval and clearInterval. Anyway, here;s the code. <img id="mainImage" src="/arts/rotatorpics/artzone