VHW三面投影图（VHWthree-planeprojection）.docx

VHW三面投影图（VHW three - plane projection）VHW三面投影图(VHW three - plane projection) The development of 3.5.3 three plane projection From three to three plane projection to the view method is: a V projection of standing still, is the view, H. matrix: TWC = TZ - TWT, so that h= theta =90 - 10, side view of the coordinates of the points are: expansion diagram as shown in figure 6.4-15. Figure 6.4-15 the three projections of the expansion. Words: 379 - source: practical machine tool design manual Read the three plane projection, a point of the full text. The projection of the space coordinate point from the 2-13 point to the three projection surface is still a point at the distance from 1. to the projection surface. The three projection and projection law of the point, in Figure 2-14, the projection of A points, H and W, respectively, from the space point A to the projection surface of V, and a, the projection of a, a and Y on the two projection surfaces can be obtained. They are called the positive (. words: 903 - source: young mechanical drawings crash Read the full text, projection three 1. plane stereo projection plane, the most commonly used are prisms and pyramids. (1) projection prism prism is visible from figure 1-60 projection. Three pyramid, the pyramid for projection, can do first at the bottom of each projection, then the projection cone top, the projection with the same name as the cone top bottom surface of each projection is connected, edge. words: 9038 - source: construction workers knowledge map with accelerated techniques Read the full projection plane projection. One of the basic concepts of projection method. In projection method, bear projection plane or other surface called. Usually consists of three mutually perpendicular plane projection, the V surface is called upright projection surface, H surface is called the horizontal projection plane, W plane called the side vertical projection plane perpendicular to each other. Three the projection plane, the space is divided into eight parts, each part is called a. words: 178 - source: volume fifth, mathematics dictionary Three, the reading projection point, line and plane (a) projection analysis point projection 1. object point is the basic geometric elements of the object, it must grasp the characteristics of projection projection plane parallel to the line of the point.: projection on the projection line parallel to the surface reflects the real length and inclined to the axis of projection, the other two sides are respectively parallel to the axis of projection projection accordingly, and less than the actual length. (number of words: 2264 - source: flour mill engineering manual Two, full text reading projection point, line and plane The projection point of the 1. point is the most basic geometric element. The projection law of points is the most basic law. Figure three. Three plane projection plane projection point establishment and 1-35 pattern of the three system: as shown in Figure 1-35 is the three-dimensional map point A on the three surface of the projection system, which has been in the H, in addition to the aforementioned V surface obtained by a, a , and from the left. words: 10268 - source: construction workers knowledge map with accelerated techniques Read the full text, a projection principle. People known as three-dimensional graph shown in Figure 1-8 is housing, glass, wood handrails sofa, because this kind of pattern and the common people to the real. Basic views form and special view (1) the basic view is based on the original three plane projection system V, H, W, adding three new projection plane V1, H1, W1 and get six basic projection plane, also known as the six plane projection system, shape. words: 6156 - source: construction workers knowledge map with accelerated techniques Read the full text of the two or three views. According to the standard rule, drawing the figure of the object by orthographic projection is called view. Usually a view cannot fully express the object. If the front projection points in the horizontal projection of B on the surface of the solid B and C C, and the other two projection them, from figure 2-10 (c) B can be seen in a rectangular oblique plane, the inclined plane of the vertical projection plane in Yu Zheng,. words: 6545 - source: concise manual calculation of sheet metal The relationship between the formation and the projection view of reading two or three. Figure 2-3 three 1. three projection plane projection system to establish the system of the three projection system is composed of 3 mutually perpendicular. Three views will form objects in the three projection system, to the projection plane according to the positive projection projection, 3 projection can be obtained respectively in V, H, W objects on the projection plane the three is the view, as shown in Figure 2-4 (a). words: 366 - source: mechanical drawing and technique intensive workers The formation of reading five, three views. In the projection map, assuming that the line of sight of people for the projection line, the contour lines visible with thick lines show, with false contour missing. See Figure 2-7 projection system to show the shape of the object, usually with three mutually perpendicular projection plane, a three plane projection system. As shown in Figure 2-7, the projection surface of the upright position is called the projective plane, with. words: 653 - source: metaler concise practical handbook 3.5.2 perspective transformation (Prespective, Projections) The perspective transformation is the object of human transformation observed as a method of plane representation, called the eye view, viewpoint and object of the object. A bit of P (X, Y, Z) is like a source, it points corresponding to the PS on the screen (XS, YS, ZS), derived from the similar triangles the relationship between the object coordinate system: when the X - Y plane to the image plane, i.e. ZS = 0, and the two type: rewrite the matrix to form. words: 657 - source: Practical Handbook of machine design Read the full 4.2.4 stereo projection. A composite solid is an object made up of two or more than two basic geometries. Any complex objects can be viewed as. Two column area clustering method when the intersection of two cylindrical projection axis orthogonal or cross vertical, if the axis is perpendicular to the projection plane projection, is accumulated in the projection on the surface of the cylindrical surface of a circle, and a combination of online points in the projection plane. words: 2131 - source: Sheet Metal Technology Handbook The four, a variety of reading Properties position plane projection The plane has three kinds of projection plane relative position: vertical plane projection, parallel projection plane and the general plane (i.e. with. From table 2-3 indicates that the surface of the vertical projection mask has the following characteristics: the projection figure 2-21 is expressed by traces of P vertical projection table 2-3 projection plane vertical plane of projection of 1. The plane in the vertical projection of the. words: 1286 - source: mechanical drawing and technique intensive workers Read the full text of 4.2.1 stereo projection rules. (a) three view formation in the orthographic projection method, when used as a projection line parallel to the line of sight, and the sight of the vertical plane drawings. Placing the object in three projection planes perpendicular to each other, from the front, top, left direction of plane projection, we get the object three direction view represent three surface shape and size, namely three views. Figure 4-7 shows. Words: 611 - source: sheet metal technical manual The two projection based reading. (a) the concept of the basic knowledge of projection projection method 1. projection method is: projection line through the object to the selected surface (Figure 15-16. Different objects in a projective plane have the same view 15-17 three plane projection system as shown in Figure 15-18 (1), the object is placed on the three side of investment the shadow system, and make the object the main plane parallel or. words: 2133 - source: milling Division Engineering Handbook Read the full text, two of cylinder and cone intersection line 1. intersecting line drawing as shown in Figure 3-22 (a) is shown, cylinder and cone two axis vertical, cylindrical all penetrate the left half cone, intersecting. (2) such as 2 , 4, 6 , 8 W projection projection round for general points on the cylinder take some general points these points, respectively in the cone for some auxiliary circle, then draw a circle in the top viewport, According to the projection rule, has 2, 4,. 967 words:. - source: Qinggong machinery map crash Read the projection point of of point the projection. One of the most basic projection. Rectangular projection. Pointing in the W plane. The projection is called side projection, B said. Then, the projection plane of rotation, V does not move, H, W in the direction of the arrow is rotated 90 degrees, the upcoming three projection show into a plane. The projection map projection to get three points, as shown in Figure 2. The projection is like. words: 339 - source: volume fifth, mathematics dictionary Read the full text of 1. three views. In the drawing, the sight is usually assumed as a set of parallel and perpendicular to the projection plane projection, projection of the object under. 1-22 triangular diagonal block of three plane projection on the W side is a rectangle, it also reflects the actual shape of the image block and slant narrow side elevation, i.e. height and width. The projection on the facade called the main view in engineering drawing. words: 638 - source: plumber actual operation manual Read the full text of the projection method. The basis of descriptive geometry. It is composed of light exposure to space objects and shadows. Get the physical phenomenon in the plane in two on the basis of a projection and upright projection plane and the horizontal projection plane is perpendicular to the side vertical projection W, then make a lateral projection form, then the side vertical projection plane around it and upright projection surface intersection OZ. words: 1370 - source: China adult education Encyclopedia of physical, mechanical and electrical The formation of reading and projection rules of the three and three views. 1. three views form as shown in Figure 1-14 (1), the object is placed in the three perpendicular projection plane, and then to three. The projection rule: main view, overlooking the corresponding projection in equal length, and is equal to the height of the corresponding projection; the main view and left view of, and flat; overlooking the corresponding projection, the left view is equal to the width of. Number of words: 692 - source: stamping operations technical essentials diagram Section 1 projection and view In the lifting operation, whether it is building or lifting, handling and transportation of objects, must draw the pattern, then according to the pattern of anti. As in Figure 1-4 (1), the parts on a cube, a front and a rear, left and right, and under the direction of six, respectively 6 basic projection plane projection, according to figure 1-4 (2) method, the front projection does not move, the rest of the surface by the arrow. words: 3537 - source: rigger graphic manipulation technique The concept of reading of a space plane. The plane of space is a plane that is not parallel to the three main planes of projection perpendicular to each other. In the drawing, the direction of the spatial plane is general. The plane xOy is the horizontal projection plane H, the plane xOz is the vertical projection plane V, and the plane yOz is the side projection surface W. The projection of plane ABC on these three projective planes is AOB, AOC and BOC respectively. Figure 7-21 space plane plane ABC and three words: 1356 - source: mechanical manufacturing inspection manual Read the full text. First angle projection first-angle projection method A positive projection method. As shown in Figure 1 is perpendicular to the V, H three, W three projection plane projection system in a projection order geometry in the. Figure 1 Figure 2 first angle projection is the observer, geometry, projective plane. Each view configuration as shown in Figure 2. Projection in V on the surface of the main view, projection in the H plane is called the top view,. words: 194 - source: volume fifth, mathematics dictionary The concept of reading a line in space, the full text. The space line is a line that is not parallel to the three perpendicular main projection planes (the coordinate plane of the rectangular coordinate system). In drawing. Sharp projection map 7-17 space linear space linear AP and coordinate axis clamp called projection angle: horizontal projection angle: alpha = H / BAO = V: vertical projection angle alpha angle CAO lateral projection angle: = Alpha W / POB space line and. words: 1188 - source: mechanical manufacturing manual detection technology Read the full text, projection and view two (a) projection fattouh 2.1-9 projection method in life, people can observe objects by light irradiation on the ground or wall. From the B frame to the main view and left view as the projection line, and not in the projection line range clearly recognize the positive side of its surface projection and projection. Suppose that the wireframe B is a horizontal projection of the surface, from the words: 4776 - sources: assembly fitter, practical technical manual The formation of reading three, three views. As shown in Figure 2-5 1. three views, will screw respectively to three mutually perpendicular basic projection plane (V, H, W). (1) a solid line view (or dash) meaning (Figure 2-8): the objects on the projection plane or perpendicular to a projection plane surface. Projection of the intersection of the upper surface of an object. Projection of curved outline of curved surface on object. Number of words: 1368 - source: practical mechanical mapping Read the full text of the third angle projection Third-angle projection method A positive projection method. Figure 1 Figure 2 shown in Figure 1 is perpendicular to the V, H, W three projection system, the name of the geometry for the view in the system. Is different from the first angle projection, the projection in the V plane is called the front view, the projection in the H plane known as the top projection in the W plane is called the right view. Using the projection method in the United States. words: 208 - source: volume fifth, mathematics dictionary Read the full line of oblique line. A straight line refers to the three projection planes parallel, vertical, straight and tilt of three projection plane is called the line. The projection and the projection axis tilted. words: 152 - source: volume fifth, mathematics dictionary Read the full text, five ball. The ball is made of spherical surface. The sphere is made of a circle as a generatrix, with the diameter of the circle rotating as a rotating shaft Fig. 2-17 (a). The projection of the three sides of the sphere is the projection of the three steering contours of the sphere, respectively, of V, H, and W (Fig. 2-17). The three view of the ball is shown in Figure 2-17 (C). (a) (b) (c) 2-17, spherica