rotatetransform

问题 I have a 3d array created with numpy, and I was wondering how I can rotate it by a custom angle, not just the rot90 function that numpy has. Can anyone help? The 3d matrix represents an image (such as a cube, or some other shape) ie 0: 1 1 1 1 1 1 1 1 1: 1 1 1 1 2: 1 1 1 1 1 1 1 1 EDIT: Moved solution to answer 回答1: Have a look at the scipy.ndimage.interpolation.rotate function. The reason this is in scipy and not in numpy is that rotating an image 90 degrees is done by just chaning the

问题 I'm trying to first draw a shape (which i've done already) and then have it transformed as selected by a user for example, rotated to a certain angle, or scaled, showing this original shape and the newly transformed shape. I've tried the following on trying to rotate: Private Sub paint_box_Paint(sender As Object, e As PaintEventArgs) Handles paint_box.Paint Dim x As Integer = paint_box.Size.Width / 2 Dim y As Integer = paint_box.Size.Height / 2 Dim rect As New Rectangle(x, y, 80, 80) ' Create

问题 I am using the Thumb class to let the user drag and drop an image across a canvas. When the right button gets pressed, i want the user to be able to rotate the image. The rotation is based around the center of the image. I have the following XAML Code <Grid> <Canvas Background="Red" Grid.RowSpan="2" x:Name="canvas" PreviewMouseRightButtonUp="Canvas_MouseUp" PreviewMouseMove="Canvas_MouseMove"> <UserControl MouseRightButtonDown="Canvas_MouseDown" RenderTransformOrigin="0.5,0.5"> <Thumb Name=

问题 I have one border inside which am having an image. on button click am rotating that image to 90 degrees. this is my original image The below is after rotation As you can after rotation my image doesn't fit into the border. I need it to be fill the border completely. What is am missing here? 回答1: I think, you are using RenderTransform to rotate the image. Instead, use LayoutTransform . See the sample: <StackPanel> <Border Width="500" Height="300" BorderBrush="Black" BorderThickness="1"> <Image

问题 Let's say I have one or more 100*50 rectangular buttons on my ViewController. import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } @IBAction func myButton(sender: UIButton) { } } usually I put my graphic images as their image. then I apply auto

问题 Let's say I have one or more 100*50 rectangular buttons on my ViewController. import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } @IBAction func myButton(sender: UIButton) { } } usually I put my graphic images as their image. then I apply auto

问题 I'm trying to create a doughnut chart in WPF and using this helpful previous answer. However, currently the StartAngle starts from the 3 o'clock position e.g. How can I change this code so that the StartAngle starts from the 12 o'clock position and the angle measures clockwise e.g. 1] StartAngle = 0, EndAngle = 90 => covers top right corner. 2] StartAngle = 0, EndAngle = 180 => covers right half. 3] StartAngle = 0, EndAngle = 270 => covers three quarters of the chart. I've tried changing the

问题 I fear I quite don't know how to explain it as well as I can show it. So I've set up this Fiddle. As you can see, the nav menu is not where it should be. It should be set exactly at the bottom border of the head element and to the left border. I.e. bottom: 0 and left: 0 . However, I'm setting a rotation of -90degs and it is obvious that the absolute positioning on the nav element is happening before the rotation or perhaps rather on the original element as if the rotation didn't exist. I've

问题 I want to know about How to rotate the bitmap image with single touch gestures.kindly help and suggest some solutions. I done scaling the bitmap with the help of http://grishma102.blogspot.in/2013/10/drag-and-drop-functionality-to-move.html . Now I need to rotate the whole image while touch and rotate the resize button. How to acheive it? Thanks in advance 回答1: Check out my blogspot in which i have tried to implement the functionality of stretch the image on arrow click and also delete it,

问题 I have the following function: static private Image CropRotate(Image wholeImage, Rectangle cropArea) { Bitmap cropped = new Bitmap(cropArea.Width, cropArea.Height); using(Graphics g = Graphics.FromImage(cropped)) { g.DrawImage(wholeImage, new Rectangle(0, 0, cropArea.Width, cropArea.Height), cropArea, GraphicsUnit.Pixel); g.RotateTransform(180f); } return cropped as Image; } It's supposed to crop an image, then rotate the resulting sub-image. In actuality though, it only performs the crop.