What is a vector field? #
Vector fields are used in physics and engineering and it assigns a vector to every point in space. This might feel confusing, but I think it will be clearer when we draw one. If we display vectors as arrows we get this:
If you think that it is looking like air or water flow, you are right. Among other things, vector fields are used for flow simulations.
How to visualize a vector field #
Technically we already saw one way of visualizing it. If we draw vectors in each point of the grid, it gives a pretty good idea of the flow direction and the speed.
Drawing a single line #
Using random seed points #
Prevent overlaps #
Using normal points for seeds #
https://en.wikipedia.org/wiki/Vector_field
Streamlines https://en.wikipedia.org/wiki/File:Cessna_182_model-wingtip-vortex.jpg
