1, the requirements are different: one of the peripheral graphics and mosaic graphics has lower requirements on the number of graphics, and mosaic graphics are generally a few scattered graphics that are finally spliced into a whole pattern.

2. Different positions: as the name implies, a jigsaw puzzle and a surrounding picture, one is a puzzle and the other is a surround. The puzzles are in contact with each other or even overlap, and the surround is combined in the outer circle of the picture, paying more attention to the word "surround".

3. Difficulty: Take jigsaw puzzles as an example. It is more difficult to spell out the same pattern than just circling the outer circle, and the operation is more complicated.

Behind the combined graphics

The composite figure consists of several regular plane figures (triangle, square, parallelogram, trapezoid, etc.). ), that is to say, a composite figure can be divided into several regular plane figures with straight lines.

It should also be noted that there is no U-turn curve. For example, the profile of the house; Irregular graphics are generally considered as those that cannot be defined and named. Generally speaking, graphics that can't be named are irregular graphics. Its lines are not fixed, some are straight and some are crooked, such as the shape of leaves and palms.