Sunday, April 3, 2011
【 Weak current College 】 AutoCAD troubleshooting and tips (6)---Power By 【 China power house network 】
19. learn 3D software of taboos.
First, fastidious and skill rather than real time. Software application is a skill, but this kind of skill not specifically * skills to gain. Too particular about methods and techniques will be their take up a lot of time and effort, and learning content itself into less time and effort, but will affect the learning effect. If there is a ready to CG job young, he had few CG magazine, look at the posts per day surfing the Internet, study and research, talk to a set, but each time he should try to have a decent work. This is because he only research methods and techniques, learning content spend too little time and effort, and get into the habit of opportunist, refused to make habit. Methods and techniques can only be properly used and to learn from his own practice in view of the appropriate methods and techniques will be truly effective.
Second, fastidious speed and efficiency, not willing to spend time regularly repeated (review) has learned. Software application is a skill, skill only * practice makes perfect, to constantly repeat will have skilled, only skilled will form a hesitation of skills.
Third, the three-day fishing for two days the Sun network, there is no persistence, not long learning. Skill skilled to a process whereby encounter various difficulties, but not to difficulties, to persistently repeated learning, persevere.
Fourth, don't pay attention to space and beauty training, which is the only technology not to art and creativity. We feel the nature is the Visual aspects of the first. If you do not have a sense of space art Foundation, is not strong, and every day just blind do, hard to do only the scenes do mess.
Fifth, only to learn instead. 3D software for practicality strong, if only to learn instead, they never learn. We learn 3-d's purpose is to apply, to learn how to use the learning in order to increase the interest to achieve better learning outcomes.
20. How will your AutoCAD drawingspeed
With CAD, CAM application in industrial production, on a project who does AutoCAD does not work, but even a slowly in practice is not acceptable. That's how to improve the speed? my own learning practice to simple talk about improving the speed of several methods.
1, familiar with the basics of CAD commands/use of shortcut icon
This point most people know, the ancients said: practice makes perfect. Basic commands and shortcut icon that is most familiar in CAD, should also be able to master, so not elaborate.
Second, ACAD.PGP file modification
We all know the LINE command in the COMMAND input is simplfy for L, why so? because in AutoCAD has one encrypted file ACAD.PGP LINE command defined in shorthand, to identify the file to open it. Locate the "Theseexamplesincludemostfrequentlyusedcommands." In prompt, under which a few lines of text can be on the short definition, remember it's column on the left is the shorthand command text for you according to your need to be modified (of course you are more familiar with the initials of myself), it's the right column is the default command do not make any changes. I believe this can give you raise a certain speed.
III. action on graphics pinch
Pinch, have you used? when you click with the left mouse button on the graph, the graph will appear many boxes of these is the pinch point. By controlling the pinch point will be able to do some basic editing operations. Such as: COPY, MOVE, change shape as the layer. But different graphics, as well as its special operations. Such as: straight with extended operation.
Fourth, significant use of modification commands
For CAD drawing staff, a picture 60%-70% is modified only 30%-40% is the drawing, it is not difficult to understand. Judging from the graphics constitute only straight lines and curves graphics both, but also by the numerous curves round cut, so a figure ultimately by straight lines and circles. The case mapping just to draw a circle or a line and determine the location, and then make a series of actions such as: OFFSET, TRIM, CHAMFER, FILLET, ARRAY, and so on, to implement graphics.
If a bearing of the drawing, you only need two mutually perpendicular to the line, and then OFFSET, CHAMFER, FILLET, a series of actions will be precise to complete the drawing of the bearing.
5. building blocks to simplify drawing work
The tile is CAD operation compare core work, many programmers and drawing workers are established in a variety of segments. Because their work has brought to us, we can use them just as you would like a brick and tile. Such as the establishment of various engineering drawing of gear and bearing specifications; architectural drawing, establishing some doors, Windows, staircases, stairs, etc. for easy invocation when drawing.
In the figure a block of one of the most flexible block is called, it actually is used the AutoLISP/VisualLISP programs written in. If you want to learn the recommended use of the VisualLISP "this book tutorial. Mainly introduces the graphics of the outer block and invocation.
1. establish a pattern of prototypes and save DWG files (in the order of operations under the WBLOCK, to establish the basis of the tile for later calls)
2. from the need to figure in the INSERTION of a block of graphics in the segments.
Through these two will be able to set up and use the tile. The application of the tile will further increase the speed of the drawing.
21. the most simple CAD picture to WORD conversion method
Point in CAD-go to the chosen WORD--paste-----photo-copied after picture ungroup-----until cannot ungroup-----deleteShadow-the-box--------the line thickness and fill color selected.
This has the effect of better figure it out.
22.AutoCAD application skills featured
To perform editing commands, prompts, select a target, choose the rectangular box, drag the cursor from left to right, the window Windows "mode, if you drag the cursor right to left; otherwise, the AC * Cross".
2. relative coordinates input points, orthogonal, General @ x, 0, 0 or @ y
(For example enter relative coordinates "@ 100, 0," said a little bit on the relative increase of 100 X direction, and if input relative coordinate "@ 0, 50," said a little bit Y direction relative increase 50), both of these cases, you can directly enter 100 or 50 you can achieve the same purpose, thus saving time.
3. 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.
4. the user 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.
5. 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.
6.CMDECHO variable determines whether the resulting command line echo, its implementation in the program should be set to 0.
7.DIMSCALE determines the proportion of dimensioning, its value is an integer, default is 1, the graphics have a certain scale should preferably be changed into a zoom percentage.
CAD's later versions are provided in the callout 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).
9.8 hollow characters such as the use of AutoCAD &] "\ * x8S7\1 {4c" X5n
The BONUS features in R14 (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.
10.AutoCADR14 of BONUS has a ARCTEXT command for arc text output, use the method is first selected arc, then enter thetext content, press OK. R
23. in CAD Chinese font in sight, there may be many reasons.
1. may not have the Chinese language-files.
2. There may be corresponding Chinese characters, you are not located.
3. it may be your font path is modified.
4. also possible and your window system settings for
You do not have the appropriate fonts, do not use the open file command to open the file, you can try using the tools in the repair order. I had some drawings of the font to the font, change the hztx.shx camera, not the font open to confusion, the command displays properly, but it seems to be the first time you open it.
For the text each time you open are?, key is you did not set the font style that you previously set in the font style of Chinese font does not exist, or there is no set Chinese font. So the best is to open the graphic in the Format menu-> font style, set your Chinese fonts.
On the text in the "?", what is not clear, but I suggest you create your own template files in template files to build your own writing style, do not use system default "Standard" text styles, I've been doing, and never a problem, because I think that if you modify the input text is "Standard" style of font, then in turn, AutoCAD to "Standard" style in the default "txt.shx" font to identify text, it would not have known, of course this is only my personal opinion, not necessarily accurate, is for informational purposes only.
Cad has a setting in tools-options-font file replacement, is on the default alternate fonts, the default is simplex.shx, when the font style of the font is missing shx, cad uses simplex.shx instead, this is the reason to produce garbled, change the simplex.shx txt.shx will be much better
24. the model and the paper space of contact and the difference
Model space is placed AutoCAD objects one of two major space. Typically, geometric model in three-dimensional space known as the model in the coordinate space, and includes amodel specific views and comments of the final layout is located in paper space. Paper space used to create the final print layout, and not on a drawing or design work. You can use the Layout tab design paper space viewport. While the model space is used to create graphics, preferably in the "model" tab for design work. If you just draw two-dimensional graphics file, then in model space and paper space is not much difference, you can make design work. But if it is a three-dimensional graphical design, the situation is completely different, only in paper space with graphic editors, graphic output, etc.
Model space and paper space relationship is
"Model space", it means your picture of in-kind (as of 1: 1 mapping them), such as a part, a building. Because I haven't made it out, it's just a model, but it reflects the real things, so called "model space." R > "paper space" is a general drawings, blueprints and real simple difference is proportional. From the paper space into real drawings is 1: 1 print.
Print directly from the model space, * the print scale, now you can put the model space to paper space also understood as "print". The "print" ratio is the ratio of the viewport, that is, prior to model print to paper space.
Model space map and print out the physical drawing is "real" relationship with drawings, paper space and printed physical drawing are electronic files and the relationship between the physical drawing, like Word files and print out the relationship between the written article.
In this way, the model space and paper space are:
(1) parallel relations
Model space and paper space is a parallel between the two is equivalent and placed parallel to the paper.
(2) a one-way relationship
If the model space and paper space compared to a second sheet of paper, model space at the bottom, paper space in the upper part, can be seen from the paper space model space (through the viewport), but the model space don't see paper space, therefore they are unidirectional relationship.
(3) no connection between the
Because the model space and paper space equivalent to two parallel placement paper, there is no connection between them, that is, either draw in model space or paper space in painting. In the paper space to activate the viewport, and then in the viewport in the drawing, it is through the viewport to draw in model space, despite your position in the paper space, we face a paper space, put the pen into the viewport reach model space editing, connectionless relationship enables it in paper space still called model space, but in order to distinguish with a "floating".
We should pay attention to these connections, it is not like layer, even though the object is placed in different layers, layers and layer relative position remain consistent, allowing the relative position of the object will always be correct. Model space and paper space can change the relative position, or even completely different coordinate system, so we have to do some object placement in model space, some of the objects placed in paper space.
Beginning AutoCAD 2002 increased DIMASSOC this system variable, dimension has a breakthrough. That is, when DIMASSOC = 2, marked on the paper space on dimensioning and in model space is marked object establishes a connection between them.
You can think about it, imagine the model space is like an infinity of drawings, you want to draw graphics size is how much input, i.e. 1: 1 mapping, and the paper space just like a picture of the actual drawings, such as A1, A2, A3, A4 so big, so, if you want to plot in the paper space, you need to build in paper space viewport, seeks to model space graphics displayed in paper space, select the viewport border, in the view property to adjust the zoom, i.e. the model space graphics scale you want final printed drawings (such as A1, A2, A3, A4), in the paper space on the same sheet of drawings may be more viewport to set different view orientation, such as the main view, looking down, right, left, etc.
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