Slideshow drawn with HTML5 canvas

08 Sep 2023

The task we are going to perform in this article is about HTML5 canvas drawing such as lines looking blurry. We observe a blurring effect because different devices have different pixel ratios. The browser or device used to view the canvas often affects how blurry the image is. The PixelRatio gadget of the Window interface returns the ratio of the display device's physical pixels to its CSS pixel resolution. This number can also be understood as the ratio of physical to CSS pixels, or the size of one pixel to another. Let's dig into the following example to learn more about HTML5 canvas drawing, where lines look blurry. Example 1 In the example below, we take a simple text that is blurred to make it clear. We are considering this blurry

07 Feb 2018

This article mainly introduces you to the telecommunications network topology diagram drawn based on HTML5 Canvas. I hope it can help you.

03 Sep 2023

In order to change the color of the image drawn on the HTML5Canvas element, you can try running the following code. Use drawImage() method-functiondisplay(img1,red,gr,bl){//functochangecolorofimage varcanvas1=document.createElement('canvas');//canvaselementinitialisationcanvas1.width=img.width;//ca

29 Aug 2023

This introductory tutorial in the series teaches you how to draw your first shape using Konva. It also explains how layers and groups work in Konva. In the remainder of this series, we'll focus on more specific topics, such as creating basic and complex shapes or attaching event listeners to different shapes to make graphics interactive. This special tutorial will show you how to create basic shapes in Konva such as rectangles, circles, and ovals. You'll also learn about the different properties you can use to customize the appearance of all these shapes to suit your needs. The remainder of this tutorial will discuss how to use Konva to draw different types of lines and regular polygons. To draw rectangles, circles and ovals you can use the Konva.rect() object in Kon

03 Jul 2018

This article mainly introduces the four-gradient color play button effect drawn using javascript and HTML5 Canvas. Friends in need can refer to it.

16 May 2016

This article mainly introduces the jQuery implementation of slide focus map, which can achieve a very dazzling and fashionable slide effect. It is of great practical value and can basically satisfy you when using slide (focus map) effects on web pages. Friends who need it can refer to the following

11 May 2018

HTML5 canvas drawing fonts, pictures and graphics are blurred. What happens is that it mostly occurs on high-dpi devices, which means there are more pixels per square inch, such as mobile phones and tablets. Of course, many high-end desktop computers also have high-resolution and high-dpi monitors. The scaling principle of canvas in the browser. If style is not set, the HTML attributes width and height will be used as the size. If the width and height in the style are set, then the style setting will be the final size drawn to the browser. In other words, the width and height in the attributes do not represent the actual width and height, so the canvas will be enlarged at high dpi, resulting in blurring.

16 May 2016

An atmospheric jQ website slide transition effect focus image code. Friends who need to know more about it can enter it for reference. This jQuery website slide transition effect focus image is very atmospheric. If this effect is applied to the homepage of the website, it will definitely be a success. Hui ah

16 May 2016

This article mainly introduces how to draw text in canvas using HTML5. There are two ways to draw text in canvas: strokeText and fillText. You can choose according to your needs.