What is the composition of a line? What is the plane composition of a line?

The composition of the line is: there are endpoints at both ends, which cannot be extended, which is different from straight lines and rays.

Segment, a general term in technical drawing, refers to one or more different lines forming a continuous or discontinuous graphic line, such as a line segment of a solid line or a line segment consisting of a double-point dash composed of "long dashes, short intervals, points, short intervals, points, and short intervals".

Connect the two points with a ruler to get a line segment. The length of the line segment is the distance between these two points. The length of the line segment connecting two points is called the distance between the two points.

A line segment is represented by the letters A, B, or a lowercase letter that denote its two endpoints, and sometimes these letters also indicate the length of the line segment, denoted as line AB or line BA, line A. where a and b represent the two endpoints of the line segment.

The correct way to put it is that a line segment is composed of an infinite number of points, and the length of the line segment has nothing to do with whether the points are long or not. Two values of different scales cannot be simply extrapolated. Finite and infinite cases cannot be simply extrapolated. The detailed discussion is higher mathematics.

contents. Another way of saying it is to explain it from the point of view of motion: a line segment is the trajectory of a point. However, in real life, people have long assumed that "a line segment is made up of an infinite number of points".

lineThe composition of refers not only to the positioning of all points where the third degree is zero (i.e., the minimum limit zero). Through the theory of positive and negative geometry, it is recognized that the smallest points include: zero, positive and negative zeros.

Zero, positive, and negative zeros are all "invisible points". (The line from zero to positive zero is a positive segment line; The line between the zero point and the positive zero point of motion is the positive ray. The line from zero to negative zero is a negative segment; The line between the zero point and the negative zero point of the motion is the negative ray).

Since the third degree of each "invisible point" is zero, the "invisible point" has no point diameter.

For this reason, all points with a little diameter are called "tangible points".

Because "invisible points" do not have a point diameter, the line is not made up of the smallest zero point.

Lines are straight lines, curves, and polylines formed by the sum of the diameters of the points that lead to the "tangible points" and "tangible points" between the zero points and the zero points when they are arranged at one time.

Like a necklace: a "tangible point" is a bead; The diameter of each bead is the point diameter; All the beads and the point at which the beads are arranged at once is the smallest zero point.

If the beads and beads are arranged in a straight sense, then the line formed by the sum of the points and diameters leading by the tangible points is a straight line.

If the beads and beads are arranged in a curved sense, then the line formed by the sum of the physical points leading the points is a curve.

If the beads and beads are arranged in the sense of folding, then the line formed by the sum of the points and diameters led by the tangible points is a folded line.

In the conceptual geometry of lines, the current geometry only has the properties of position and length, but not of width and thickness. A line is the trajectory of a point, the edge of all faces, and the junction of faces. The planar composition of the center line has not only changes in position, length, but also width, thickness, and texture

Plane composition is the arrangement and combination of visual elements on the two-dimensional plane, according to the visual effect of beauty and the principle of mechanics, it is a method of creating images with rational and logical reasoning, and studying the arrangement between images and images.

It is the product of the combination of reason and emotion. The study of creating ideal forms in a two-dimensional plane, or decomposing and combining existing forms (figurative or abstract forms) according to certain principles, so as to form a variety of ideal visual forms of modeling design basic course.

The plane composition is built on the basis of modern science and technology aesthetics, it integrates the achievements of modern physics, optics, mathematics, psychology, aesthetics and many other fields, brings fresh conceptual elements, and it has been successfully applied to many fields of art design, and cannot but become the only way to become the foundation of modern art design.

A line is the smallest zero point and the zero point is guided by a single (one-dimensional) arrangement to determine the direction of its straight, curved or bent extension, and is composed (constituted) of the diameter of the "tangible point" between the zero point and the zero point.

1. If the "tangible points" are arranged in a straight sense (one-dimensional), then the line composed of the diameter of the points is a straight line.

2. If the "tangible points" are arranged in a single term (one-dimensional) with the meaning of the song, then the line composed of the points and diameters is a curve.

3. If the "tangible points" are arranged in the sense of a single item (one-dimensional) in the sense of folding, then the line composed of the point diameter is a broken line.

Types of Lines:

1. Straight line class.

Straight line: can extend infinitely to both ends.

Rays: One end is fixed, the other end can be extended infinitely Line segment: Both ends are fixed, have a fixed length, and cannot be extended.

2. Curves.

Arc: A part of a circle.

Conic Curve: The section of the conic to the plane.

Circumcision curve: A type of curve discovered by Hippias.

Helix: A line in which the tangent vector of each point on the curve always intersects at a fixed angle in a fixed direction. (Note: Randomly drawn curves do not count.) ）

The composition of the line is the nature of the arrangement of "tangible points" and "tangible points" at one time, which leads to the zero point and zero point on the point diameter to the edge into which the surface or volume is divided into a straight or curved nature or a folded nature.

A line is a graph made up of an infinite number of points.

Straight line class: it can be extended infinitely to both ends; Rays: one end is fixed, the other end can be extended indefinitely; Line segments: Both ends are fixed and have a fixed length that cannot be extended.

Curve-like arc: A portion of a circle. Conic curves:

The section of the cone from the plane. Circumcision curve: A type of curve discovered by Hippias. Helix:

The tangent vector of each point on the curve always intersects the line at a fixed angle in a fixed direction. (Note: Randomly drawn curves do not count.)

At both ends of the line segment are dots. There is only one straight line after two points. Line segments (finite lines) cannot be extended indefinitely.

If a straight line intersects two other straight lines in the same plane, if the sum of the two internal angles on the same side of the straight line is less than 180°, then the two straight lines must intersect on this side after an infinite extension.

Line, a commonly used Chinese character (first-level character), read as xiàn, a phonetic character, was first seen in the small seal of "Shuowen". The original meaning is a slender object made of silk, cotton, linen or metal, such as silk thread, cotton thread, woolen thread, gold thread, etc.; The latter is a metaphor for something as slender as a thread, like light; It also refers to clues, routes, etc.

"Zhou Li, Tianguan, Sewing Man": "Sewing people are in charge of the stitches of the palace." "The Legend of the Ram: The Four Years of the Prince":

China is endless. He Xiu's note: "Thread, sewing silk wisps, in order to metaphorically micro."

The nineteenth chapter of "The Appearance of Officialdom": "The top shirt was broken again, and the tailor was ready-made, so he immediately took the red silk thread and connected two stitches."

What does <> line mean?

Pronunciation: xiàn

1. Measure words, used for abstract things, and number words are limited to "one", which means very little: a glimmer of hope.

2. Geometry refers to a figure formed by the arbitrary movement of a point: a straight line. Curve. Lines.

3. Something made of silk, cotton, linen, metal, etc., which can be twisted and turned: silk thread. Cotton. Coil. Wire rod. Cord.

Composition of lines: Lines in three-dimensional composition are material entities that determine the length of the material, and this material is usually called wire. The three-dimensional form composed of linear materials is called linear three-dimensional.

Wire rod can be divided into hard wire and soft wire due to the different strength of the material. In life, common hard wires are: strip-shaped wood, metal, plastic, glass, etc.; Soft wires include: wool, cotton, silk, hemp and chemical fiber and other soft wires and soft wires.

Thread is something made of silk, cotton, linen, metal, etc., which is slender and can be twisted at will: silk thread, cotton thread, coil, wire rod, thread rope. Mingxi.

1. Something like a line: guess the ray. Line of sight. Clues (a, the clue or the way to the matter; b. The plot of the literary work radically changes the context of the exhibition or the idea of the article). Front. Lifeline.

2. Measure words, used for abstract things, and the number words are limited to "one", which means very little: a glimmer of hope.