Welcome to Bucaro TecHelp!

Bucaro TecHelp
Maintain Your Computer and Use it More Effectively
to Design a Web Site and Make Money on the Web

About Bucaro TecHelp About BTH User Agreement User Agreement Privacy Policy Privacy Site Map Site Map Contact Bucaro TecHelp Contact RSS News Feeds News Feeds

SVG Image Masking

<svg width="450" height="320" version="1.1" xmlns="http://www.w3.org/2000/svg" style="border-style:solid;">
   <radialGradient id="fade">
       <stop offset="0%" stop-color="white" stop-opacity="1.0" />
       <stop offset="50%" stop-color="white" stop-opacity="0.7" />
       <stop offset="100%" stop-color="white" stop-opacity="0.0" />

   <mask id="fademask">
      <ellipse cx="225" cy="150" rx="225" ry="150" fill="url(#fade)" />

   <image xlink:href="http://bucarotechelp.com/design/graphics/images/leaves.jpg" x="0" y="0" width="480" height="353" mask="url(#fademask)" />

Masking is a similar to clipping, except that clipping defines an area of a graphic element that will be visible and makes a sharp boarder between the visible and clipped areas. A mask defines an area where each pixel of the mask has a degree of transparency and opaqueness that lets some of the graphic element show through, making a blurry boundary between the visible and masked areas.

In the example shown above, a radial gradient is defined and given an id of "fade". A mask is defined and given an id of "fademask". The radial gradient is then used as the fill of the mask. The image leaves.jpg is then loaded with xlink:href and the mask is used with the mask attribute in the leaves image tag.

A mask works by using its alpha channel to allow or block pixels of the image from showing through. The less opaque a part of the mask is, the less visible that part of the image will be. you can make the mask stop-colors any color you like, but it will turn out white in the result because mask uses only the transparency bits of the mask.

More Graphics Design Tips:
• How to Remove PNG and JPEG EXIF Metadata
• Graphics Design for Beginners - Cropping Images
• CSS Button Designer
• Create Animated Glistening Gold Text With SVG
• How to Make a Simple Animated Banner in Flash CS3
• SVG Basic Shapes Tutorials
• How to Make a Simple Video
• Image Processing Filters - How to Sharpen a Photograph
• Inkscape - How to Add a New Node
• SVG Code to Create a Rectangle and Text and Translate as a Group

RSS Feed RSS Feed

Follow Stephen Bucaro Follow @Stephen Bucaro

Fire HD
[Site User Agreement] [Privacy Policy] [Site map] [Search This Site] [Contact Form]
Copyright©2001-2018 Bucaro TecHelp 13771 N Fountain Hills Blvd Suite 114-248 Fountain Hills, AZ 85268