Graphics
PAGE (3 of 4)
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Graphics |
PAGE (3 of 4) |
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Another method for representing and storing graphic/image data in uncompressed form is a vector or structured graphic representation. A vector graphic file format is composed of formulas for analytical geometry representations for geometric shapes. This format is used primarily for storing graphics produced with technical drawing programs, (CAD, 3-D, etc.). Although some method for imbedding a bit-map as part of the image is usually provided. The major advantage of a structured graphic representation is that the geometric formulas are scale and resolution independent. The graphic can be resized easily by simply changing the coefficients of the geometric formulas. This negates the errors and side-effects introduced when scaling bit-maps, (i.e. aliasing or jaggies).
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Vector Graphic example |
The image below is a 200% scaling of the previous vector graphic. Compare the aliasing or jaggies affects that result from the vector scaling as compared with the prior bit-map scalings.
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Vector Graphic 200% scaling example |
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© CS Dept Va Tech, 1997. |
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