python 2d packing irregular shapes one by one

Question

the context:

an artpiece where i iteratively fit irregular blobs into a square and paint the outcome with my drawing robot.

the problem:

I have a bunch of irregular shapes that

• can resize between a maxsize and a minsize
• can rotate
• are irregular in shape

and i need to place them, one by one, in a rectangular so i minimize the empty space.

Special problem constraints:

1. i need to place them, one by one, and do the computation only for the next item, i cannot use packing algos that know the next items, in plural, since that information does not exist.

.

My question:

1. What is the name of this problem ?
2. Can you give some directions on how to approach this, relevant papers etc?

my question is related to Packing An Irregular Polygon with Different Sized Circles