VECTOR

VECTOR GRAPHICS 

Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygons—all of which are based on mathematical expressions—to represent images in computer graphics. Vector graphics are based on vectors (also called paths), which lead through locations called control points or nodes. Each of these points has a definite position on the x and y axes of the work plane and determines t
he direction of the path; further, each path may be assigned a stroke color, shape, thickness, and fill. These properties don't increase the size of vector graphics files in a substantial manner, as all information resides in the document's structure, which describes solely how the vector should be drawn. The term vector graphics is typically used only for 2D (planar) graphics objects, in order to distinguish them from 2D raster graphics, which are also very common. 3D graphics as commonly implemented today (e.g. in OpenGL) are typically described using primitives like 3D points and polygons connecting these (which in turn describe surfaces); these 3D primitives are much more similar to vector graphics than to raster graphics, but aren't explicitly called vector graphics. The equivalent of raster graphics in the 3D world are voxel-based graphics.
 Some authors have criticized the term vector graphics as being confusing.^[ In particular, vector graphics does not simply refer to graphics described by Euclidean vectors.^[ Some authors have proposed to use object-oriented graphics instead. However this term can also be confusing as it can be read as any kind of graphics implemented using object-oriented programming.^[

You know that feeling when a piece of work isn’t coming together and you need to test out lots of ideas but can’t risk the extra time drawing something from scratch? So you decide to search for some free vector art online – but it's not always easy to find what you're looking for.
A good free selection of vector art can be a lifesaver for any designer. But more often than not, the process of finding what you need amidst cluttered, confusing pages just adds to the mounting deadline stress. To help you avoid that experience, we've put together a hand-picked guide to the best free vector art resources, including various useful designs that you can download in preparation for future projects. Please note and respect the Creative Commons licence if there is one.

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