How to draw three-dimensional drawings in cad

The steps on how to draw a three-dimensional drawing in CAD are as follows:

Material preparation: computer.

1. First draw a three-dimensional cuboid according to the required size, as shown in the figure below.

2. Enter "VPORTS" on the command line and press Enter as shown in the figure below.

3. As shown in the figure below, you can set a two-dimensional or three-dimensional view in the "Viewport" panel.

4. After confirmation, you can see the three views of the drawn graph as shown in the figure below.

5. You can also set the arrangement and order of views through the viewport layout, as shown by the arrows in the figure below.

6. Enter "DI" in the execution command line, as shown in the figure below, you can measure the length or angle of the graphic and other information.

Three-dimensional stereoscopic image classification and imaging principles:

1. Classification

1. Binocular stereoscopic imaging technology

The stereoscopic image consists of two For images with parallax, viewers need to wear auxiliary devices to watch, such as binocular viewers, red and green (or red and blue) glasses, polarizing glasses, liquid crystal light valve glasses, three-dimensional helmet-mounted displays, etc.

2. Raster stereoscopic image technology

Stereoscopic images are synthesized from more than two images with horizontal parallax. The audience can watch the stereoscopic images without wearing glasses. It is widely used in multimedia Display, advertising display, home decoration, wedding photography, three-dimensional printing and other industries.

3. Laser holography technology

Recording images requires coherent light, and is widely used in holographic anti-counterfeiting trademarks, cards, and packaging materials. In addition, there are non-mainstream three-dimensional display technologies such as zoom mirror technology, concave mirror (or convex lens) stereoscopic projection technology, luminous crystal imaging, smoke and water curtain imaging, etc.

2. Principle of three-dimensional imaging

A perfect three-dimensional image is composed of two or more layers. It is visually distinct and colorful, and has a strong visual impact. Let the viewers stay in the scene for a long time and leave a deep impression. The three-dimensional pictures give people a real and lifelike feeling, the characters are ready to be seen, and they have an immersive feeling, which has a high artistic appreciation value.

Use three-dimensional images to package enterprises to make the corporate image more vivid and highlight the strength and grade of the enterprise. Increase the influence and highlight the high quality and high grade of the product. It can also create colorful and layered three-dimensional wedding dresses and photos, which is one of the latest selling points in the current imaging industry.