What does two-dimensional mean?

Question 1: What do you mean by car 2D? Inspect and adjust the safety components such as steering knuckle, steering rocker arm, brake shoe and suspension that are easy to wear or deform after a certain period of time, disassemble and inspect the tires, transpose the tires, inspect and adjust the engine working conditions and exhaust pollution control devices. The maintenance enterprise is responsible for vehicle maintenance.

Question 2: What do two-dimensional and three-dimensional mean respectively? A two-dimensional image is an image on a plane. Two-dimensional animation is an improvement of traditional manual animation. By inputting and editing key frames; Calculating and generating an intermediate frame; Define and display the motion path; Color the picture interactively; Produce some special effects; Realize the synchronization of picture and sound; Control the recording of sports series and so on.

Also known as 3D animation, it is a new technology with the development of computer software and hardware technology in recent years. Three-dimensional animation software first establishes a virtual world in the computer. Designers build models and scenes in this virtual three-dimensional world according to the shape and size of the objects to be represented, then set the motion trajectory of the model, the motion of the virtual camera and other animation parameters according to the requirements, and finally assign specific materials to the model, and light it as needed. When all this is done, the computer can automatically calculate and generate the final picture.

The way 3D animation technology simulates real objects makes it a useful tool. Because of its accuracy, authenticity and unlimited maneuverability, it is widely used in many fields such as medicine, education, military affairs, entertainment and so on. In the production of film and television advertisements, this new technology can give people a refreshing feeling, so it has been welcomed by many customers. Three-dimensional animation can be used to make special effects (such as explosion, smoke, rain, light effects, etc.). ), special effects (crash, deformation, illusory scenes or characters, etc. ), advertising product display, title flying and so on.

Question 3: What does two-dimensional mean? It's too thin, you can't see it when you turn around, it's not three-dimensional ....

Question 4: What do two-dimensional numbers mean? Two-dimensional array.

Int[ subscript 1][ subscript 2];

int a[2][2]；

Number of values that can be stored: subscript 1* subscript 2= total number.

The assignment subscripts all start from 0 and end with the following subscript N- 1

Assignment example 1:

for(I = 0； Question 5: What do you mean by two dimensions? The content on the plane is two-dimensional. Two dimensions are left and right, up and down, without front and back. The content on a piece of paper can be regarded as two-dimensional. That is, only area, no volume. Two-dimensional is a kind of plane technology, such as ordinary plane animation, which is called two-dimensional animation. Three-dimensional is three-dimensional.

Question 6: What do you mean by one-dimensional, two-dimensional and three-dimensional respectively? The line is one-dimensional and the parameter is a point.

The surface is two-dimensional and the parameters are lines.

The volume is three-dimensional, and the parameters are surfaces.

By analogy, the space with volume as a parameter is a four-dimensional space, usually understood as time, and similar statements can be seen in many science fiction novels.

Then the space with time as the parameter should be a five-dimensional space. Science fiction seems to be related to black holes and wormholes, which is hard to understand ~ ~

We humans can only perceive four dimensions.

You didn't find this rule:

One-dimensional things can accommodate so-called zero dimensions (straight lines are made up of points)

Two-dimensional things can hold one dimension (you can draw a straight line on paper)

Three-dimensional things can be packed in two dimensions (put a piece of paper in the box)

Then four-dimensional things naturally accommodate three dimensions. Our human body is three-dimensional. Our world is four-dimensional Why is it four-dimensional? Because our world has four elements: length, width, height and time.

Do you have a five-dimensional one? In other words, a medium that can accommodate our world? That depends on what is outside our world and what is outside the universe. I don't know yet!

One-dimensional, two-dimensional and three-dimensional space originated from the study of mathematical concepts. Mathematicians want to make measurement standardized, strict, integrated and universal, so they define various multidimensional spaces such as one-dimensional, two-dimensional, three-dimensional and four-dimensional.

In which branches of the topology are generated. Look at the latest basic geometric topology, and you will gain a lot. If you read books on algebra and topology, it will be difficult and a waste of time. If you just want to know, it is enough to read popular science books that introduce one-dimensional, two-dimensional, three-dimensional, four-dimensional and high-dimensional spaces, and you can get it quickly. Sometimes the theory introduced by suitable popular science books is easy to understand and profound, while some professional books are not difficult enough.

Four-dimensional space and above belong to high-dimensional model.

High-dimensional model is divided into two concepts: mathematics and physics.

Mathematically, there are many models in multidimensional. Theoretically, the dimension can be very high. There are many models. However, few people satisfy the property of exchange invariance, so some people think that four-dimensional space is the physical upper limit. But some people think that there will be higher-dimensional physics. Thinking is beneficial to intelligence, because it is only limited by mathematical conditions.

Physically, there are many models in many dimensions. Theoretically, the dimension can't be very high. In order to explain the infinity of the universe as a whole, it is necessary to introduce multi-dimensions, generally four-dimensional space-time (a pair of relative composition properties), and some other finite countable dimensions, so there are not many models that may be established in physics. Thinking is very difficult because it is bound by physical phenomena.

Question 7: What does a two-dimensional diagram mean? One-dimensional line, two-dimensional line vertical nail! Three dimensions are three vertical lines! We are three-dimensional space! Look at your corner! What plane is two-dimensional?

Question 8: What does two-dimensional mean? Two-dimensional bar code is a black-and-white figure with certain geometric figures distributed on the plane (two-dimensional direction), which is used to record data symbol information. In coding, the concepts of "0" and "1" bit streams, which constitute the internal logic foundation of the computer, are skillfully used, and several geometric figures corresponding to binary are used to represent the numerical information of characters, which can be automatically read by image input equipment or photoelectric scanning equipment to realize automatic information processing. Two-dimensional code/two-dimensional code can express information in both horizontal and vertical directions at the same time, so it can express a lot of information in a small area.

Question 9: What do two-dimensional numbers mean? Two-dimensional array.

Int[ subscript 1][ subscript 2];

int a[2][2]；

Number of values that can be stored: subscript 1* subscript 2= total number.

The assignment subscripts all start from 0 and end with the following subscript N- 1

Assignment example 1:

for(I = 0； Question 10: What do you mean by car 2D? Inspect and adjust the safety components such as steering knuckle, steering rocker arm, brake shoe and suspension that are easy to wear or deform after a certain period of time, disassemble and inspect the tires, transpose the tires, inspect and adjust the engine working conditions and exhaust pollution control devices. The maintenance enterprise is responsible for vehicle maintenance.