在线手册

  • css3 pr background

    ... images on one element. Note: See individual browser support for each value below. CSS Syntax background: color image position/size repeat origin clip attachment initial|inherit; Note: If one of the properties in the shorthand declaration ...

  • canvas createpattern

    ... Definition and Usage The createPattern() method repeats the specified element in the specified direction. The element can be an image, video, or another <canvas> element. The repeated element can be used to draw/fill rectangles, circles ...

  • canvas putimagedata

    ... earlier versions, do not support the <canvas> element. Definition and Usage The putImageData() method puts the image data (from a specified ImageData object) back onto the canvas. Tip: Read about the getImageData() method that copies ...

  • coll doc images

    ... it yourself » Example Loop through all <img> elements in the document, and output the URL (src) of each image: var x = document.images;var txt = "";var i;for (i = 0; i < x.length; i++) {    ...

  • default

    ... input checkbox input color input date input datetime input datetime-local input email input file input hidden input image input month input number input password input radio input range input reset input search input submit input ...

  • dom obj canvas

    ... object that copies the pixel data for the specified rectangle on a canvas putImageData() Puts the image data (from a specified ImageData object) back onto the canvas Compositing Property Description ...

  • prop style borderimageoutset

    ... .borderImageOutset="length|number|initial|inherit" Note: The borderImageOutset property specifies the amount by which the border image area extends beyond the border box. on the top, right, bottom, and left sides. If the fourth value ...

  • att img ismap

    ... is a boolean attribute. When present, it specifies that the image is part of a server-side image-map (an image-map is an image with clickable areas). When clicking on a server-side image-map, the click coordinates are sent to the server as a ...

  • att input accept

    ... action="demo_form.asp">   <input type="file" name="pic" accept="image/*">   <input type="submit"> </form> Try it yourself » Definition and ...

  • att input src

    ... name: <input type="text" name="fname"><br>   <input type="image" src="submit.gif" alt="Submit"> </form> Try it yourself » Definition and ...

推广服务(新)
最新文章
  • OpenGL/WebGL顶点坐标变换过程简介

    世界坐标是按照笛卡尔坐标系定义出来的绝对坐标系,下面的各种坐标系都建立在世界坐标的基础上。对象坐标系对象被应用于任何...

  • 增强现实引擎ARToolKit工作原理简介

    ARToolkit是一个基于CV(计算机视觉)和Marker(标识)的开源增强现实引擎。其具备如下功能特性:A. 鲁棒跟踪,包括基于标记的跟踪与基于特征的跟踪;

  • 常用光照类型基本概念工作原理及其计算公式

    在三维场景中,原理上物体的渲染效果取决于光照与物体表面的相互作用,对于渲染程序而言,可以通过把一些数学公式应用于像素着色来实现,从而模拟出真实生活中的...

  • WebGL场景中多相机拍摄的原理和意义

    一般而言,3D场景的渲染只需要一个相机,不过借助多相机可以获取一些单相机无法达到的特效。比如突显特定对象并模糊背景。
    3D相机渲染的基本原理是依靠颜色...

  • ARCore基本概念和工作原理简介

    谷歌的WebAROnARCore项目基于Android手机提供的ARCore增强现实引擎,要了解WebAROnARCore,需要先了解ARCore的工作原理。基本上ARCore做了两件事,首先跟踪手机...

  • 更多...