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Rethinking the Datacenter
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Today's datacenters need to increase utilization, get control over power and cooling costs, and align with business objectives. Download this eBook to learn about the challenges facing the data center in a world where digital information is growing at a torrid pace and costs are being held in check. Learn more. »
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Putting the Green into IT
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Electricity use in data centers is skyrocketing, sending energy bills through the roof, creating environmental concerns and generating negative publicity. "Going Green" means looking to technologies like virtualization, energy-efficient chips and racks, and implementing policies that extend beyond the data center. Learn more. »
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Managing the Modern Network
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In a global economy where information crosses the globe in an instant, and where Web-based applications power business, it's more important than ever to ensure your network is safe from threats and optimized to deliver the data your business needs. »
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Evaluating Software as a Service for Your Business
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Is Software as a Service just hype, or is something really going on here? See if your company can benefit as SaaS tries to change the face of the enterprise.
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Is Your Disaster Recovery Plan Good Enough?
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Preparing for a disaster is more often than not part of the storage planning process, and it is one of the most difficult tasks, since it includes local hardware and software, networking equipment, and a test plan. Learn how to get disaster recovery right. »
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Inkscape: Vector Graphics For Linux
Raster vs. Vector

Rob Reilly
Tuesday, February 22, 2005 10:39:22 AM
Just about everybody has heard of The Gimp.
It's a raster based graphics editor that's available for Linux and Windows. Other raster editors include Microsoft Paint, Adobe Photoshop and Ulead PhotoImpact. A graphic produced by The Gimp is just a bunch of pixels on the screen. As a matter of fact, if you take a swipe across your screen with the eraser tool, you'll be erasing a swath of pixels, whether it's a shape, line, color or whatever. There are no properties, links or intelligence built into any particular graphical element. It's also known as a bitmap.
Inkscape is different. It's vector based.
Here's how it works. Suppose you insert a filled square onto the screen of a vector graphics editor and then decide you want to change the fill color. That's easy. Just highlight the square and then call up the fill properties panel. Choose a new color from the color wheel and poof, new color on the square. You adjust the properties of the graphical elements, instead of just shuffling around the individual pixels and their colors.
Virtually every 2- and 3-D CAD system are vector based.
Inkscape is also an open source vector graphics editor that uses the SVG (scalable vector graphics) file format. This is neat because SVG is an evolving standard based on XML that can be massaged via programs, scripts or a simple text editor.
In this story we'll do a quick primer on how you can get up to speed on Inkscape. Along the way, we'll explore situations where a vector based graphic would be better suited for a job than a raster based picture. In spite of not being an XML or web development expert I think SVG will be important in the future. Read on and you'll see why.
Next: Drawing With Vectors »