rotation

问题 I know there's a million questions on rotating, I've tried and read many things but I can't seem to solve this particular problem. The only way I can think to explain it properly is with some poorly drawn diagrams so here goes! I have a parent object, and a child object (here it's represented as a die where opposite faces add up to 7), the axes in this diagram are the parents X, Y, and Z directions Starting point: I want the child object to have two methods that I'll call RotateZ and RotateX

问题 I am using a the following code for a image, which will rotate, zoom in-out with pinch. User can make its position by dragging it. activity_img_match.xml <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:background="@drawable/brokenbone" android:gravity="center_vertical|center_horizontal" > <ImageView android:id="@+id

问题 I'm trying to make more dataset to train my model in Tensorflow for data augmantaion. I added the labels of boundary boxes to original image. I want to rotate image 45 degree and modify the xml file for the new exact boundary box(rectangle) to label new created image. It's resizing and fetching to window to not to loose anything on image. Let me show you how I try: def rotateImage(mat, angle): height, width = mat.shape[:2] image_center = (width / 2, height / 2) rotation_mat = cv2

问题 I'm trying to make more dataset to train my model in Tensorflow for data augmantaion. I added the labels of boundary boxes to original image. I want to rotate image 45 degree and modify the xml file for the new exact boundary box(rectangle) to label new created image. It's resizing and fetching to window to not to loose anything on image. Let me show you how I try: def rotateImage(mat, angle): height, width = mat.shape[:2] image_center = (width / 2, height / 2) rotation_mat = cv2

问题 I need to rotate an horizontal line about its end point in VB Excel. I tried various solution found on internet but they don't work well. I give you some images about what I want to do: This is my line: point A (72; 378) point B (165; 378) And I want to rotate the point A about the point B, the angle of rotation is variable. For example this is a 60 degrees rotation The letters A and B were added after the screenshot with a photo editor 回答1: Try this. Sub test() Dim x As Single, y As Single

问题 I need to rotate an horizontal line about its end point in VB Excel. I tried various solution found on internet but they don't work well. I give you some images about what I want to do: This is my line: point A (72; 378) point B (165; 378) And I want to rotate the point A about the point B, the angle of rotation is variable. For example this is a 60 degrees rotation The letters A and B were added after the screenshot with a photo editor 回答1: Try this. Sub test() Dim x As Single, y As Single

问题 I have my world rendered. Based on some specific requirements it includes (some time) some lights on the floor. I am rendering these lights using triangle primitives. Right now I have the following code to zoom and limit the rendering area: if(aspect>1) gl.glOrtho(-scale*aspect, scale*aspect, -scale, scale, 0, 2); else gl.glOrtho(-scale, scale, -scale/aspect, scale/aspect, 0, 2); As you can see in this image, the far plane is cutting the light throught a line (parallel to the line on the

问题 I am trying to make BitmapImage myImage1 and myImage2 rotate to an arbitrary angle (could be 45, 30, 10... etc.) The error I'm getting is that I can only rotate it to 90, 180, or 270 degrees. XAML Code: <Window x:Class="CSWPFAnimatedImage.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="WPF Animated Image Sample" Height="300" Width="300" Loaded="Window_Loaded"> <Window.Resources> <Storyboard x:Key=

问题 I am trying to make BitmapImage myImage1 and myImage2 rotate to an arbitrary angle (could be 45, 30, 10... etc.) The error I'm getting is that I can only rotate it to 90, 180, or 270 degrees. XAML Code: <Window x:Class="CSWPFAnimatedImage.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="WPF Animated Image Sample" Height="300" Width="300" Loaded="Window_Loaded"> <Window.Resources> <Storyboard x:Key=

问题 I am working on orientation work on uitabbar application. I am using 5 tabbar item in tabbar. I want only 4 tab bar item to be rotated in both Landscape and potrait. but the issue is when i put "return no" to shouldAutorotateToInterfaceOrientation in non rotating tabbar item, all tab bar are not working. can anybody please tell me what i went wrong? Thanks in advance. Regards, sathish 回答1: By default, a UITabBarController will only return YES to the shouldAutorotateToInterfaceOrientation: