search
HomeWeb Front-endHTML TutorialCanvas 与 SVG 的区别_html/css_WEB-ITnose

这个说实话,我只用过canvas画过一些简单的图形,复杂的不懂,之所以列出来,是因为之前在面试中有被问到,在这里mark一下,后期深化。

以下的内容全部来自于w3school

http://www.w3school.com.cn/html5/html_5_canvas_vs_svg.asp

 

 假装是华丽丽的分割线

 

Canvas 和 SVG 都允许您在浏览器中创建图形,但是它们在根本上是不同的。

SVG

SVG 是一种使用 XML 描述 2D 图形的语言。

SVG 基于 XML,这意味着 SVG DOM 中的每个元素都是可用的。您可以为某个元素附加 JavaScript 事件处理器。

在 SVG 中,每个被绘制的图形均被视为对象。如果 SVG 对象的属性发生变化,那么浏览器能够自动重现图形。

Canvas

Canvas 通过 JavaScript 来绘制 2D 图形。

Canvas 是逐像素进行渲染的。

在 canvas 中,一旦图形被绘制完成,它就不会继续得到浏览器的关注。如果其位置发生变化,那么整个场景也需要重新绘制,包括任何或许已被图形覆盖的对象。

Canvas 与 SVG 的比较

下表列出了 canvas 与 SVG 之间的一些不同之处。

Canvas

  • 依赖分辨率
  • 不支持事件处理器
  • 弱的文本渲染能力
  • 能够以 .png 或 .jpg 格式保存结果图像
  • 最适合图像密集型的游戏,其中的许多对象会被频繁重绘
  • SVG

  • 不依赖分辨率
  • 支持事件处理器
  • 最适合带有大型渲染区域的应用程序(比如谷歌地图)
  • 复杂度高会减慢渲染速度(任何过度使用 DOM 的应用都不快)
  • 不适合游戏应用
  •  

    Statement
    The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
    What is the purpose of the <datalist> element?What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PM

    The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

    What is the purpose of the <progress> element?What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PM

    The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati

    What is the purpose of the <meter> element?What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PM

    The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex

    How do I use HTML5 form validation attributes to validate user input?How do I use HTML5 form validation attributes to validate user input?Mar 17, 2025 pm 12:27 PM

    The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.

    What is the viewport meta tag? Why is it important for responsive design?What is the viewport meta tag? Why is it important for responsive design?Mar 20, 2025 pm 05:56 PM

    The article discusses the viewport meta tag, essential for responsive web design on mobile devices. It explains how proper use ensures optimal content scaling and user interaction, while misuse can lead to design and accessibility issues.

    What is the purpose of the <iframe> tag? What are the security considerations when using it?What is the purpose of the <iframe> tag? What are the security considerations when using it?Mar 20, 2025 pm 06:05 PM

    The article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.

    What are the best practices for cross-browser compatibility in HTML5?What are the best practices for cross-browser compatibility in HTML5?Mar 17, 2025 pm 12:20 PM

    Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.

    How do I use the HTML5 <time> element to represent dates and times semantically?How do I use the HTML5 <time> element to represent dates and times semantically?Mar 12, 2025 pm 04:05 PM

    This article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit

    See all articles

    Hot AI Tools

    Undresser.AI Undress

    Undresser.AI Undress

    AI-powered app for creating realistic nude photos

    AI Clothes Remover

    AI Clothes Remover

    Online AI tool for removing clothes from photos.

    Undress AI Tool

    Undress AI Tool

    Undress images for free

    Clothoff.io

    Clothoff.io

    AI clothes remover

    AI Hentai Generator

    AI Hentai Generator

    Generate AI Hentai for free.

    Hot Tools

    SAP NetWeaver Server Adapter for Eclipse

    SAP NetWeaver Server Adapter for Eclipse

    Integrate Eclipse with SAP NetWeaver application server.

    SublimeText3 Linux new version

    SublimeText3 Linux new version

    SublimeText3 Linux latest version

    MinGW - Minimalist GNU for Windows

    MinGW - Minimalist GNU for Windows

    This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

    WebStorm Mac version

    WebStorm Mac version

    Useful JavaScript development tools

    VSCode Windows 64-bit Download

    VSCode Windows 64-bit Download

    A free and powerful IDE editor launched by Microsoft