【 Weak current College 】 CAD drawing skills (1)

1. in the AutoCAD sometimes turn * point marked on the mouse to click the Office, use a command that prompts BLIPMODE line input OFF will remove it.
2. some users use AutoCAD will find command in the dialog box will prompt line, such as a print command, control, it is a system variable CMDDIA, close it.
3. ellipse ellipse command is generated to polylines or ellipse to entity is determined by the system variable PELLIPSE, when its 1 PLINE ellipse is generated.
4.CMDECHO variable determines whether the resulting command line echo, its implementation in the program should be set to 0.
5.DIMSCALE determines the proportion of dimensioning, its value is an integer, default is 1, the graphics have a certain scale should preferably be changed to scaling.
Stop the entity two 6.BREAK open, select the second point, use the "@" to answer, the first point to be separate entities.
7.CAD higher version provides the shape and position tolerances, roundness and axiality enough round in circles, in fact, the definition of common symbols in AutoCAD are AutoCAD installation directory SUPPORT subdirectory gdt.shp file, 2, and 4 characters defines a circular shape, the circle radian was 127 °, but not very good mend (such as read 90 ° more does not look good).
8. hollow characters such as the use of the BONUS features AutoCADR14 (be sure to fully install AutoCAD, or custom installation select it), there is a command that can be TXTEXP text fried as lines to do 3D characters.
9.AutoCADR14 of BONUS has a ARCTEXT command for arc text output, use the method is first selected arc, then enter the text content, press OK.
10.BONUS also has a useful command, that is, use it to MPEDIT multiple lines together to polylines, and then change its width.
11.image command in R13 R14 in place of the BMPIN, in order that such PCXIN bitmaps embedded file, only used to display, such as explode into empty frame, how to reproduce the PCXIN commands? please install directory R13 RASTERIN.EXE copy-R14, appload mount it and then you can import a bitmap (editable, you can explode).
12.BREAK command to interrupt the entities, the user can also be a little disconnected entities, usage is on the first point to select, enter the "@". Commonly used a line segment is dashed, another section as solid lines.
13.AutoCADR14 provides extensive command abbreviations, abbreviations in many R13 commands also have initials, the following provides CAD single-character abbreviation: A:ARC, B:Bmake, C:Circle, D:ddim, E:erase, F:fillet, G:group, H:bhatch, I:ddinsert, L:line, M:move, offset, P:pan, R:redraw, S:stretch, T:mtext, U:undo, V:ddview, W:Wblock, X:explode, Z:zoo, extensive use of, use will be found faster than point (especially in 1s transmission speed of 5 characters). Substantial expansion of simplified AutoCADR14 commands, not only adds to the first letter of a simplified command (not listed), but also increases with the first two letters of simplified command commonly used such as: array, copy, dist, donut, dtext, filter, mirror, rotate, pline, trim, scale, snap, style, units, etc., more enhanced keyboard input command, to become familiar with the keyboard's friend, is simply a menace.
14.AutoCADR14 command abbreviations also available in R13 by AutoCADR14 Support subdirectory under ACAD.pgp copy to AutoCAD
R13 subdirectory of Support.
15.AutoCAD ACAD.pgp file is very important in that it records command abbreviation content, users can customize their format: <命令缩写> * command name. You can also define a system command, the command sh AutoCADR14 provides, you can execute DOS commands, but in Windows.
In NOTEPAD, 16.AutoCADR14 EDIT, DIR, DEL, system commands, I believe that where NOTEPAD on custom CAD use larger, but it will find screen Flash (in DOS), and returns that are the unhappy people, let's make a small program, named note.lsp: (defunc: notepad () (startapp "notepad"))
First put the NOTEPAD ACAD.pgp command defines the rows to delete, reentrant CAD, then this program with the command: (load "note") into the next with NOTEPAD command will have better results, it is best to (load "note") to join the Support subdirectory of ACADR14.lsp.
Print line width 17.AutoCADR14 by color setting, this mechanical drawing of various style, line width different lines can be placed in a different layer to layer defines the style and color, while in the Print Setup settings line style and color of the relationship and the results were very good.
18.AutoCADR14 's SuppOrt ACAD.dwt is the default template in, processing it, the commonly used layers, blocks, callout types defined, plus the standard figure box, you can save a lot of duplication of work.
There are many external 19.AutoCAD Lisp command file, you can watch them directly, if you learn to develop Lisp applications, note: R14 but the last version of Lisp file content disclosure of AUTOCAD in Lisp file content in CAD2000 is encrypted (the author is working on decryption program).
The second development tools 20.AutoCAD, Lisp has a long, R11 provides ADS (AcadDevelopsystem), R12 for ADS on the real-mode C compiler (such as BC, MSC) support, R13 provides ARX (AcadRuntimeeXtend), R14 provides this Automation enables VBAutomation VB write CAD programs possible, eager to CAD programming has been one of the best choices, you do not have to learn the ADS, ARX, ObjectARX, and AutoCAD AutoLisp, joined with the programming world.
21. user custom Lisp file to automatically load the AutoCAD, so you need to add the user acadr14.lsp Lisp file load statement, acadr14.lsp (earlier version acad.lsp), like DOS Autoexec.bat, be sure to take advantage of, such as defining a S:: STARTUP () function to automatically run it (to CAD plus a picture how to enabled, the available STARTUP plus startapp function, can also be combined with your login password).
22. will insert AutoCAD graphics in a WORD, sometimes found round into a regular polygon, use a command, it VIEWRES is set too large, you can change the graphic quality.
23. the form, such as f30H11 () mark how to the callout, please enter the text content of the "%% c30 {H11 () {\\H0.7x; \\S + 0.1 ^-0.2;}}" , You can implement, as too cumbersome, compiling a program to simplify operation.
In the file as 24.AutoCAD block insertion in other documents, but so too many block so that the file is too large, use the PURGE to remove them, clear a layer at a time, be sure to use a few times!
The contents of the help file 25.AutoCADR14 is very rich, many of these "books", composed of layers of open, read their usefulness is big, including CAD, than any CAD encyclopedia also whole, do you want your help to join, please modify acad.cnt, join their help.
26. in may, in accordance with the regulations in CAD fix .ahp CAD help file, R14 by ahp2hlp.exe it into .hpj file and .rtf file, and then use HelpWorkshop tool (in the VC5) will open the project, compiled to .hlp files.
27. in AutoCAD with some DOS exe files in R14 still uses slides with Slidelib.exe for libraries, mc.exe enables menu of compilation.
28. in the finished parts to assemble the parts after the welding block insert, and then open group group after Assembly, then use the Select command control group ddselect is inscribed status, cancel the group selected may be a member of the group to cut, delete, modify, to move the parts then open Group status.
29. in the menu source file in AutoCAD as a .mnu file and modify it to add your own commands to the menu, and then use the menu command to mount, you can participate in AutoCAD help understand menu file format. Icon on the toolbar to add your own commands for relatively simple, you can right-click on the point, in the toolbar, point to the new button, enter the tool bar, a new tool bar, then choose Customize button, the selected custom, the empty button onto the toolbar, and then in the blank button on the right, so that you can defineyour own button image and commands.
30.AutoCAD status lines can also be customized, using DIESEL languages can access it, the easiest method to use when entering modemacro command to $ (getvar, clayer), beyond the current layer name is displayed in the status line, the user of it all!
31.AutoCAD graphics format .dwg, can also be exported as .bmp, .eps, and .wmf or .dxf, .3ds, if you use the render command can be saved as .tga, .pcx, .tif format, AutoCAD you can also save the file directly to a format that you want to install to the system named "Rasterfileexport" printer, use it to print to a file, the file can also be ACAD2000 saved as JPG format.

32.render is colored, render no off button, users can: (arxunload "render"), because it is an ARX file extension functions.
33.dimzin system variable'd set to 8, then the default values in the dimension does not end with a few zeros users directly accept the default value is very convenient.
34. in the event of failure, such as shortcut keys ^ o loss of function, become orthogonal mode switch, please use the menu to be currently using menu .mnu menu source file reload again.
35. in multiline text (mtext) command in the edit text with Word97. Mtext multiline text editor is AutoCADWhat's new in R14, it provides Windows word processing software of the interface and work methods, it can even take advantage of the powerful features of Word97 to edit text, this feature can be used as follows: open the "Tools" menu select "Preferences" command, "Preferences" dialog box pops up, open "Files/TextEditor, Dictionary, andFontFileName/TextEditorApplication/Internal", double-click on the "Internal", "dialog box appears" Selectafile, he went on to found the "Winword.exe" application file, click "open" button, then click "OK" to return. After completing the above setup, users like to use mtext command system will automatically call our familiar Word97 application, text for AutoCAD.
36. using custom tools button.AutoCAD in lsp file can provide us with very useful commands, such as chtext.lsp is a good text modification commands, especially for large quantities of text changes, but use this command must be preceded by the lsp file loaded. Usually you can select the "Tools" menu, "LoadApplication ..." option, and then use the dialog box open AutoCADR14/Support of Chtext.lsp file, and then click on "Load" button, or you can directly in the command line, type "(load" chtext ")" to achieve the purpose of loading, so do some cumbersome. Here we use a custom tool button on the way to solve this problem, right-click any of the Tools button, pop-up dialog box "Toolbars" and click "Customize ..." button in "Categories: choose" Custom "," item appears in the empty button onto the target location in the sidebar, click "Close" button to return to, and then right-click the empty button appears "ButtonProperties" dialog box, in the "Name:" bar as a command button named, "Help:" bar you can write or not to write content, and then in the "Macro:" type "(load" chtext "), as regards the" cht "ButtonIcon", user-selectable system icons, you can also Edit point "..." to draw or a direct call to existing bmp file, the last point of the "Apply" button and then close the dialog box returns. So you've made work button. Because behind increased "cht" (Note: there is a space in front of you), so you just press the tool button you can directly go to select the file you want to edit.
37. "Stretch" command is also a commonly used commands, enter the command, the system always prompts "selectobjecttostretchbycrossing_windoworcrossing_polygon ...", requires you to enter a "C" before you can use the mouse to select the destination. In order to simplify the operation, the user only needs to be a system-supplied tools button to do some small modifications. Right-click any of the tool button pop-up Toolbars "dialog", and then right-click the "stretch" tool button popup "ButtonProporties" dialog box, in the"Macro:" box "^ c ^ c_stretch type a space after" and "C". After you click the Tools button you can directly select the destination.
38.AutoCADR14 users typically uses the system gives the default format for filing, the filing of this format is file space, you cannot use low versions of applications (e.g. AutoCADR12, AutoCADR13) open, to avoid the waste of disk space, you can "SaveDrawingAs" dialog box, choose the "Save as type" to "AutoCADR12/LT2Drawing" format. For example: the same dwg file filed in two ways, their size is 87KB, 58KB respectively. Visible difference is still very significant. But the latter file can R12, R13 version opens in an application. In this way to configure a lower user is particularly useful.
39. sometimes open dwg file, the system pop-up "AutoCADMessage" dialog box prompts "Drawingfileisnotvalid", tell the user that the file cannot be opened. In this case you can quit open, and then open the "File" menu, selected "DrawingUtilities/Recover" command, or directly in the command line by using the keyboard to enter the "recover", then "SelectFile" dialog box, enter the file you want to restore, verify that the system starts the restore file operations.
40. the finished menu. The support directory of the file copy to chinese.mnu acad.mnu. Use WordPad to open chinese.mnu. Careful observation will find many similar "* to * the * POP" entries, each entry defines a column drop-down menu. The quotation marks in the English command names changed to Chinese, save and exit. Then enter the R14 "menu" command menu file mount, chinese.mnu dropdown menu becomes Chinese. You can then mount acad.mnu file will restore the menu.
41.R14 default "command to cancel" key "ESC" key, if you're already accustomed to R12 "Ctrl + C"? click on menu Tools\\preferences\\compatibility\\prIorityforacceleratorkeys\\autoCADclassic, then you can use the "Ctrl + C" to cancel the order, while the "ESC" key is still valid.
42.trim command prompts you to select the graphic you want to cut, does not support common window and select a style. crossing When you want to cut the number of line segments, to select multiple times to complete. Then you can use the Select method. fence When the trim command prompts to select the graphic you want to cut off, enter "f", and then draw on the screen a dashed line, carriage return, and be in contact with the dotted line graphics were cut off.
43. click "ObjectPropertys" toolbar "Makeobjects\ ' layercurrent" button, and then select the drawing area to go to the layer of any graphics, current layer immediately transform into a selected shape's layer.
44. with R12 file R14 open, even if the proper selection of a file, or Chinese characters will appear garbled characters due to use of R12 R14 and different code pages. You can download the Autodesk master code page conversion tool wnewcp. Run wnewcp, first select the "R11/R12" check box, and then click the "Browse" button, choose to convert a file or directory, and then select the new code page, or both ANSI936 GB2312, click "start conversion" StartConversion. After conversion, the R14 was able to display Chinese characters correctly.