📄 svg_grad_radial.asp
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<h1>SVG Gradients - Radial</h1>
<a href="svg_grad_linear.asp"><img alt="previous" border="0" src="../images/btn_previous.gif" width="100" height="20" /></a>
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<p class="intro">An SVG Gradient must be defined within a <defs> tag.</p>
<hr />
<h2>Radial Gradients</h2>
<p>The <radialGradient> tag is used to define an SVG radial gradient.</p>
<p>The <radialGradient> tag must be nested within a <defs> tag. The <defs> tag is short
for definitions and it allows definition of special
elements such as gradients.</p>
<p>Copy the following code into Notepad and save
the file as "radial1.svg". Place the file in your Web directory:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"></pre>
<pre><svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg"></pre>
<pre><defs>
<radialGradient id="grey_blue" cx="50%" cy="50%" r="50%"
fx="50%" fy="50%">
<stop offset="0%" style="stop-color:rgb(200,200,200);
stop-opacity:0"/>
<stop offset="100%" style="stop-color:rgb(0,0,255);
stop-opacity:1"/>
</radialGradient>
</defs></pre>
<pre><ellipse cx="230" cy="200" rx="110" ry="100"
style="fill:url(#grey_blue)"/></pre>
<pre></svg></pre>
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<p><b>Code explanation:</b></p>
<ul>
<li>The id attribute of the <radialGradient> tag defines a unique name for the gradient</li>
<li>The fill:url(#grey_blue) property links the ellipse element to the gradient</li>
<li>The cx, cy and r attributes define the outermost
circle and the fx and fy define the innermost circle</li>
<li>The color range for a gradient can be composed of two or more colors. Each color
is specified with a <stop>
tag. The offset attribute is used to define where the gradient color begin and
end</li>
</ul>
<p><a target="_blank" href="radial1.svg">View example</a></p>
<p>Another example:</p>
<table width="100%" border="1" class="ex" cellspacing="0"><tr><td>
<pre><?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"></pre>
<pre><svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg"></pre>
<pre><defs>
<radialGradient id="grey_blue" cx="20%" cy="40%" r="50%"
fx="50%" fy="50%">
<stop offset="0%" style="stop-color:rgb(200,200,200);
stop-opacity:0"/>
<stop offset="100%" style="stop-color:rgb(0,0,255);
stop-opacity:1"/>
</radialGradient>
</defs></pre>
<pre><ellipse cx="230" cy="200" rx="110" ry="100"
style="fill:url(#grey_blue)"/></pre>
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