Let me admit, if I hadn’t had some rudimentary idea on how to use vector illustrations for my online lessons and tutorials, I couldn’t have made them half as okay for the students.
Dropouts are common in online courses; one reason could be that the students find the lessons dull and uninspiring.
Even though books have been replaced because they are costly, there is still no clarity on the right visual format that will make online lessons universally attractive for all times to come.
Before going further, let me first explain what a vector illustration or vector graphic is, and what its advantages are vis-à-vis raster or bitmap images.
What is a vector illustration?
A vector illustration is created using mathematical formulae to draw lines and curves that can be combined to create an image from geometric objects such as circles and polygons.
In simple terms, here are a couple of advantages when you want to design vector illustrations:
- Since it’s a mathematical formula, a simple vector illustration will occupy much less space compared to large space required by a raster image for storing color information for each individual pixel that forms it.
- A vector image is more scalable. When a vector image is scaled up or enlarged, the image is redrawn using the mathematical formula, so the resulting image is just as smooth as the original, unlike a raster image which gets pixelated when enlarged.
See examples here, also watch the vector illustration below as it is enlarged.
A free tool
There are many free tools on the web, and the tool I’m going to explain is also free for designing vector illustrations.
But ‘free’ is not the only clinching factor to use this tool. You can – and you’ll see this shortly – use the tool to download the image in both SVG (vector) and PNG formats.
We will look at this in a future article, for the present let me explain how to design vector illustrations for free for your projects in just a few moments.
Have a look at some of the illustrations below in different colors.