How about AutoCAD drawing? Can you elaborate on it?

1. Drawing steps: set the map sheet → set the unit and precision → establish several layers → set the object style → start drawing.

2. The graph always uses the ratio of 1: 1. In order to change the size of the pattern, different printing scales can be set in the drawing space when printing.

3. When the pattern of a small area is processed, the scale factor value of the pattern can be reduced; On the contrary, when processing the pattern filling of a larger area, the scale factor value of the pattern can be increased.

4. Set different layers, colors and line widths for different types of primitive objects. The color, line type and line width of primitive objects are controlled by layers.

5. When drawing accurately, you can use the grid capture function and set the grid capture interval to an appropriate value.

6. Don't draw a picture frame and a picture in the same picture. You should insert a picture frame in the layout and print out the picture.

7. For famous objects, such as views, layers, blocks, lines, text styles, printing styles, etc. The naming should not only be concise, but also follow certain rules to facilitate the search and use.

8. Set some common settings in the graphic template file, such as layer, label style, text style and grid capture (that is, save as *). DWT file). When you draw a new picture in the future, you can click Use Template in the Create New Drawing Wizard to open it and start drawing.

Extended data:

Users control CAD by sending a series of commands. After receiving the command, CAD will immediately execute the command and complete the corresponding function. In the specific operation process, although there are many methods to achieve the same goal in computer-aided design CAD, if the appropriate command is selected, the operation steps will be obviously reduced and the drawing efficiency will be improved.

1, generating a straight line or line segment.

In CAD, LINE, XLINE, RAY, PLINE and MLINE commands can be used to generate straight lines or line segments, but only the line command is used most frequently and flexibly.

In order to ensure the correspondence of "long alignment, equal width and high level" among the three views of an object, we should choose XLINE and RAY commands to draw several auxiliary lines, and then use TRIM to cut off the redundant parts.

To quickly generate a closed filled boundary or construction area, you should choose the PLINE command. Line segments generated by PLINE can be edited by PEDIT command.

When multiple parallel line segments are generated at one time, and each line segment may use different colors and linetypes, you can choose the MLINE command.

2. Annotation text

When using a text annotation, if the text in the annotation has the same format and the annotation is short, select the DTEXT command.

When you need to write a long paragraph, the text in the paragraph may have different formats, such as font, height, color, special symbols, molecular formula and so on. , you should use the MTEXT command.

3, copy graphics or features

In the same graphic file, if you copy a graphic, you should choose the copy command. You can select the mode option for a single copy or multiple copies, or you can select the displacement option to specify the location.

In the same graphic file, a graphic is copied many times at will, so you should choose multiple options of the copy command; Alternatively, use the COPYCLIP or COPYBASE command to copy the required graphics to the clipboard, and then use the PASTECLIP or PASTEBLOCK command to paste them to multiple specified locations.

In the same graphic file, if the copied graphics are arranged according to certain rules, such as forming several rows and columns, or evenly distributed along a circle (arc), you should choose the ARRAY command.

In the same drawing file, if you want to generate multiple parallel lines with equal or unequal spacing, or generate a series of concentric ellipses (arcs) and circles (arcs), you should choose the Offset command.

In the same graphics file, if a large number of copies are needed, in order to reduce the file size or facilitate unified modification in the future, the specified graphics should be defined as a BLOCK with the block command, and then the block should be INSERTed with the insert or MINSERT command.

References:

Baidu encyclopedia -CAD