How to draw three-dimensional objects with cad

How to draw a three-dimensional drawing with cad is as follows:

Material preparation: computer.

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

Secondly, enter "VPORTS" at the command line and press Enter, as shown in the following figure.

Three, as shown in the figure below, you can set a two-dimensional or three-dimensional view in the "viewport" panel.

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

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

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

Classification and imaging principle of three-dimensional stereogram;

I. Classification

1, binocular stereo imaging technology

Stereo images are composed of two images with parallax, and viewers need to wear auxiliary equipment to watch them, such as binocular viewer, red-green (or red-blue) glasses, polarizer glasses, liquid crystal light valve glasses, stereo helmet display and so on.

2. Grating stereoscopic image technology

Stereo images are composed of more than two images with horizontal parallax. Viewers can watch stereoscopic images without glasses, which are widely used in multimedia display, advertising display, home decoration, wedding photography, stereoscopic printing and other industries.

3. Laser holographic technology

Coherent light is needed to record images, which is widely used in holographic anti-counterfeiting trademarks, cards and packaging materials. In addition, there are non-mainstream stereoscopic display technologies such as zoom lens technology, concave mirror (or convex lens) stereoscopic projection technology, light-emitting crystal imaging, smoke screen and water curtain imaging.

Second, the three-dimensional imaging principle

A perfect three-dimensional map is composed of two or more layers, which is visually distinct, colorful and has a strong visual impact, making viewers stay in the scene for a long time and leave a deep impression. Cubic painting gives people a real, lifelike and vivid character image and an immersive feeling, which has high artistic appreciation value.

The use of three-dimensional image packaging enterprises, so that the corporate image is more distinct, highlighting the strength and grade of enterprises. Increasing influence can highlight the high quality and high grade of products. You can also make colorful and chiseled three-dimensional wedding dresses and photos, which is one of the latest selling points in the imaging industry.