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<h1>SVG <rect></h1>
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<p class="intro">SVG has some predefined shape elements that can be used and
manipulated by developers.</p>
<hr />
<h2>SVG Shapes</h2>
<p>SVG has some predefined shape elements that can be used and manipulated by
developers:</p>
<ul>
<li>Rectangle <rect></li>
<li>Circle <circle></li>
<li>Ellipse <ellipse></li>
<li>Line <line></li>
<li>Polyline <polyline></li>
<li>Polygon <polygon></li>
<li>Path <path></li>
</ul>
<p>The following chapters will explain each element,
starting with the rect element.</p>
<hr />
<h2>The <rect> Tag</h2>
<p>The <rect> tag is used to create a rectangle and variations of a
rectangle shape.</p>
<p>To understand how this works, copy the following code into Notepad and save
the file as "rect1.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><rect width="300" height="100"
style="fill:rgb(0,0,255);stroke-width:1;
stroke:rgb(0,0,0)"/></pre>
<pre></svg></pre>
</td></tr></table>
<p><b>Code explanation:</b></p>
<ul>
<li>The width and height attributes of the rect element define the height and
the width of the rectangle</li>
<li>The style attribute is used to define CSS properties</li>
<li>The CSS fill property defines the fill color of the
rectangle (either an rgb value, a color name, or a hexadecimal value)</li>
<li>The CSS stroke-width property defines the width of the border of the
rectangle</li>
<li>The CSS stroke property defines the color of the border of the rectangle</li>
</ul>
<p><a target="_blank" href="rect1.svg">View example</a></p>
<p>Let's look at another example that contains some new attributes:</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><rect x="20" y="20" width="250" height="250"
style="fill:blue;stroke:pink;stroke-width:5;
fill-opacity:0.1;stroke-opacity:0.9"/></pre>
<pre></svg></pre>
</td></tr></table>
<p><b>Code explanation:</b></p>
<ul>
<li>The x attribute defines the left position of the rectangle (e.g. x="0"
places the rectangle 0 pixels from the left of the browser window)</li>
<li>The y attribute defines the top position of the rectangle (e.g. y="0"
places the rectangle 0 pixels from the top of the browser window)</li>
<li>The CSS fill-opacity property defines
the opacity of the fill color (legal range: 0 to 1)</li>
<li>The CSS stroke-opacity property defines
the opacity of the stroke color (legal range: 0 to 1)</li>
</ul>
<p><a target="_blank" href="rect2.svg">View example</a></p>
<p>Define the opacity for the whole element:</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><rect x="20" y="20" width="250" height="250"
style="fill:blue;stroke:pink;stroke-width:5;
opacity:0.9"/></pre>
<pre></svg></pre>
</td></tr></table>
<p><b>Code explanation:</b></p>
<ul>
<li>The CSS opacity property defines
the opacity value for the whole element (legal range: 0 to 1)</li>
</ul>
<p><a target="_blank" href="rect3.svg">View example</a></p>
<p>Last example, create a rectangle with rounded corners:</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><rect x="20" y="20" rx="20" ry="20" width="250"
height="100" style="fill:red;stroke:black;
stroke-width:5;opacity:0.5"/></pre>
<pre></svg></pre>
</td></tr></table>
<p><b>Code explanation:</b></p>
<ul>
<li>The rx and the ry attributes rounds the corners of the rectangle</li>
</ul>
<p><a target="_blank" href="rect4.svg">View example</a></p>
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