touch screen scale

One of my friends once said that scaling and rotating an image on a multi-touch screen should be as basic as "Hello World" in the program. I think this is very reasonable. In the first part of the video (two parts in total), I will explain how to make the flex component rotate and zoom. The following class allows the image to be scaled and rotated, which is as classic as "Hello World" and also applies to vi

in the mobile browser The page is often scaled in use, and the scaled element coordinates change? The answer is somewhat different. Use a scenario to illustrate the problem: After page A is loaded, JavaScript obtains the coordinates of the element in document (100,100), and then the user enlarges the page, and then outputs the coordinate of the element again with JavaScript, still (100,100), However, the element's response area on the screen is offse

, and the underlying substrate is a voltage probe. The continuous deformation on the outside of the surface changes the feature (resistance) of the secondary node, thus reducing the linearity and accuracy of the axis. The base plate is used for X and Y axes measurement. The soft surface is used only as a voltage measurement probe. This means that the touch screen can work continuously even if

Reference: http://blog.chinaunix.net/uid-22174347-id-1786941.html ========================================================== ============================ Development Environment Compilation System: fedora9 Compiler: arm-linux-4.4.3 Master chip: S3C2440 Development Board: mini2440 ========================================================== ============================ I. Working Principle of resistive touch screenIi. S3C2440 resistive

Today I got a touch screen and tested it for use under WIN10 and Ubuntu14.04. The touchscreen brand is LS530TM, a 15-inch resistive touch screen.Windows is easy to use, a total of three lines on the display: power cord, VGA cable, USB cable, respectively, connected to 220V electricity and computer. Wherein, the VGA transmits the video signal, the USB transmits th

electronic scale. Although the app was rejected by Apple, it's a great idea. So, to show the workflow of 3D touch, let's make a simple app. Go ahead and download the initial case. There is only one empty single View in the initial case. I created the necessary UI elements ( UILabel and UIImage ViewController.swift ) in the app, and associated them.The app is designed to be simple: there are two label

Brief Introduction to Android touch screen Gesture Recognition and android touch screen gesture Most of the time, the use of touch screen Fling, Scroll and other Gesture (Gesture) operations will greatly improve the user experienc

Reference: http://blog.chinaunix.net/uid-22174347-id-1786941.html ========================================================== ============================ Development Environment Compilation System: fedora9 Compiler: arm-linux-4.4.3 Master chip: S3C2440 Development Board: mini2440 ========================================================== ============================ I. Working Principle of resistive touch screenIi. S3C2440 resistive

. gesturedetector. ongesturelistener; Since api-1, Android. View. gesturedetector; Since api-1, From the API, from the beginning of the api-1 has supported the gesture and gesture listener, so many say api-4 to support this sentence is also true! Because:Android. gestureThis class is fromApi-4Is supported. This classInput Method Gesture RecognitionWill be used in! So ~ Conclusion: Touch Screen Gesture Recog

Linux (kernel 3.2.x), based on the Eeti Touch screen controller, USB touch screen application, found that the USB touch cable unplugged and plugged in, touch screen failure, the

Light Sweep1. If you want to turn on the Super button, swipe from the right side of the touchscreen to the middle.2. If you want to open a recently used application, swipe from the left side of the touchscreen to the middle.3. If you want to display the application command, swipe from the touch-screen direction or from the bottom of the touchscreen and swipe upwards.4. If you want to see all installed appli

Last year, because of the novel, bought a touch-screen notebook. I liked it at first, and then I always encountered someone pointing at my computer screen which led to the wrong operation. After research and discovery found that the touch screen function is provided by the "

-8863-400) or online customer service.The following uses TL-WDR6510 as an example to describe how to update the screen.Upgrade method1Go to the software upgrade pageClick the touch screen using a touch pen and enter the administrator password to enter the settings page. ClickSet, As follows:ClickSystem Settings, As shown in the following figure:Go to the software

Win10 system laptop how to turn off the touch screen, win10 Touch Screen After upgrading win10, I found that the touchpad is often accidentally touched. How can I disable the touch screen in win10 system notebook? Let's share it

(event) {var self = this; // this indicates the events object if (event. type =' Touchstart') {self. start (event);} else if (event. type = 'touchmove ') {self. move (event);} else if (event. type = 'touchend') {self. end (event) ;}, // slide start: function (event) {var touch = event.tar getTouches [0]; // The touches array object obtains all the touch on the screen