Graphic motion

The movement of graphics is particularly common in life, so what is the movement of graphics?

The movement of graphics is the rotation and translation of graphics.

? Through the rotation and translation of graphics, you can get any object in your life. So how does the graph rotate and translate? Let me explain something to you.

? Are cubes particularly common in life? So what "changes" did the square come from? Let's find a square first, and then translate vertically from bottom to top. The faster you drag, the more obvious the middle trajectory is. The middle trajectory "becomes" a cube. (But to ensure that the height of the middle rail must be equal to the side length of the square, otherwise it will become a cuboid, but the method of "changing" a cuboid is the same as that of a cube. ) We can also stand a square and translate it to the left (or right) to get a square or rectangle.

? Then the cube is obtained from the translation trajectory of the square.

? So what kind of figure does the cylinder have and what kind of movement does it get? Let's take out a rectangular piece of paper, insert the vertical symmetry axis of the rectangle on a propeller, and then turn the propeller. We found that the faster a rectangle rotates, the more it rotates like a cylinder. In fact, if we put the rectangle horizontally and find the trajectory of symmetrical rotation, it can also become a flat cylinder. (Actually, it's just a trajectory of 180 degrees. )

? Then rotate the trajectory of 180 degrees around the rectangular symmetry axis to get the cylinder.

? Here comes the problem again. What kind of graphic motion does the cone get? We erect an isosceles triangle, find the symmetry axis between the two waists, and then plug in the propeller to make it rotate quickly. The faster the rotation, the more like a cone. We can know that the cone is derived from the trajectory of isosceles triangle rotating around the central axis. But why use an isosceles triangle? Because the length of this place from the circular tip of the cone to the bottom area must be equal at every position, and the included angle between this line and the bottom area must be equal at every position, an isosceles triangle must be used)

? The movement of graphics is ever-changing. You got it?

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