My name is Han Cao, last year graduated from the University of Jilin college of Computer undergraduate students, because of the epidemic, there is no...
Linear gradient Linear gradient changes colors in a linear pattern, that is, horizontal, vertical, or diagonal. The addColorStop() method takes two arguments. The first argument...
Building automatic control refers to the power equipment in the building, such as elevator, water pump, fan, air conditioning, etc., its main work nature is...
1. Touchstart: When your finger touches the screen, get the initial coordinates, lastpos.x, lastpos.y. 2. Touchmove: Get the current coordinates, Curloc. x, Curloc. y, as...
In a recent project, reports needed to be drawn to clearly and intuitively reflect the creation of business processes. G2 is a data-driven visualization engine...
Introduction: Nowadays, in order to prevent program attacks when users log in or register, dynamic verification technology is added, which is generally realized by letting...
It doesn't require any rendering from the server, the entire image is created in the client browser. When the browser does not support Canvas, Flashcanvas...
This is the fourth day of my participation in The August Genwen Challenge. Check the details of the activity: The animation of August Genwen Challenge...
Context. DrawImage (image, x, y, W, h) Parameters: image: specifies the image, canvas, or video to be used, x: specifies the x-coordinate position of the...
This article is suitable for those who have a certain canvas foundation. 1. Project introduction: I really feel the interface design is beautiful, so I...
In the previous article "Cat guest Tangram page component dynamic scheme", VirtualView Android implementation details (a) introduced the VirtualView scheme, but the content is focused...