A Vector graphic is an image that is stored in a file as a collection of objects such as a rectangle, ellipse, line and polygon.  The attributes of each object are stored such as X and Y co-ordinates, fill colour and line colour.  Objects can be layered one on top of the other to create image.

• A Vector graphic is stored in a file as a group of objects and their attributes.
• The more objects that are added, the more data that must be stored, therefore the file size will increase.  
• A Vector graphic is resolution independent, this means it can be resized without losing clarity (it does not pixelate). 

The 4 vector graphics that you need to know for N5 Computing Science is:

A vector graphic does not store the picture itself but the instructions of how to draw the picture.

A ellipse might be stored as:

     ellipse (centre xcoordinates , centre y  coordinates start, radius, line colour, fill colour) 

A line might be stored as

     Line(x coordinates start, y coordinates start, x coordinates start, y coordinates start, line colour) 

When stored in the computer, instructions to draw the picture would be stored as a binary numbers.