As an overview when objects are in close
proximity we perceive them to be related.
A huddle of students in a corner will look like a group
however, the same students spread out in the same
classroom will not look like a group.
Continuity
The law of continuity says that
we will link things that follow a
predictable pattern.
We expect straight lines
to carry on as straight
lines and curves to
continue as smooth
curves.
Closure
We tend to perceive objects as a whole, even if they are not. If
you almost draw a triangle but don't join up the last two sides ,
it still looks like a triangle. This is because we 'Fill in the gaps'.
Instead of seeing lines, we make the lines into a
complete edge and therefore perceive a shape
surrounded by the line.
Closure is more likely to happen when the shape produced
by joining the lines is a regular shape.
If we see familiar image, such as an outline of a house or a chair,
we don't notice if there are any parts missing as we tend to fill in
lines based off of schemas.
Similarity
The principle of similarity states that things which share visual characteristics such as
shape, size, colour, texture, value or orientation wil be seen as belonging together.
In the example in the middle there are columns of shapes that are the same colour,
shape, etc. and this is why we perceive the shapes to belong in a group.