Phương pháp lập bản vẽ thiết kế ứng dụng Autocad 2000: Phần 1

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Phần 1 cuốn sách "Sử dụng Autocad 2000 lập bản vẽ thiết kế" trình bày các nội dung: Mở đầu, các lệnh tiện tích về file, nhập điểm và phương thức bắt điểm, các lệnh vẽ cơ bản, các lệnh trợ giúp và hiệu, các phép biến hình, điều khiển màn hình quan sát bản vẽ. Mời các bạn cùng tham khảo nội dung chi tiết.

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Nội dung Text: Phương pháp lập bản vẽ thiết kế ứng dụng Autocad 2000: Phần 1

TS. NGUYEN VAN HIEN sll DUNG • , ~ ,.,,_ LAP BAN VE • ..ft!" ~, THIET KE Gido trinh dung cho sinh vien cac truong dai hoc kj thuat ... Ban ve 20 Ban ve nr rna hinh 3D Tao anh d(>ng Nqon ngG'AutoLiSP HUdng dan bai tap thLJC hanh .8.utoC.6.D 2.000' .' # • .. ~ NHA XUAT BAN KHOA HOC vA KY THUA.T HANOI
sil dyng AutoCAD 2000 5 MUCLUC . . LOI N61 DAU 3 PHANM(H CHUONG 1 MO DAU 1.1. GI61 THI~U AUTOCAD 2000 18 1.2. KHCH DONG vA MAN HINH DO HOA CVA AUTOCAD 2000 19 1.2.1- Khai dong 1.2.2- Man hlnh AutoCAD2000 1.3. cAc CACH NHA,P L~NH CHO AUTOCAD THlJC HI~N 22 CHUONG2 cAc L~NH TI~N iCH v~ FILE 2.1. CACH NHA,P L~NH VB FILE 25 2.1.1- Nhap cac lenh v~ file tir Pull-down menu 2.1.2- Nhap cac lenh v~ file tir Standard Toolbar 2.1.3- Nhap cac lenh ve file tir Sereen menu 2.2. cAc HOP THOAI FILE vA cAc L~NH VB FILE 25 2.2.1- Tao ban ve mai(New) 2.2.2- Mo ban ve da eo (Open) 2.2.3- Cat ban VI. thanh mot file(Save, Saveas) 2.2.4- Dong file ban ve va thu nho man hlnh ban ve (Close) 2.2.5- Xuat ban ve sang cac dang file khac (Export) 2.2.6- Phuc h6i file ban ve (Recover) 2.2.7- Thoat khoi AutoCAD va ket thiic viec ve (Quit, Exit) 2.2.8- Thoat tarn thai man hinh AutoCAD fa thirc hien lenh cua he dieu hanhrShell) CHUONG3 NH~P DIEM vA PHUONG THUC BAT DIEM 3.1. H~ TOA DO 32 3.2. CACH NHA,P DIEM 32 3.2.1- Ole each nhap mot diem 3.2.2- Vi du nhap diem 3.3. cAc PHVbNG THOt BAT DIEM CHINH xAc (OSNAP) 34 3.3.1- Truy bat 1 Hin (tarn tni) 3.3.2- Truy bat thtrong tni 3.3.3- Che d¢ AutoTrack 3.3.4- Trang DRAFTING trong hop thoai OPTIONS 3.4. TAO BAN VB MAU BAN DAU (TEMPLA TE DRAWING) 43 3.4.1- Su dung ban ve mau ban dau 3.4.2- Trinh lI! tao ban ve mau rieng cua ban thea cac biroc sau 3.4.3- Cac Ienh sir dung d~ tao ban ve mau
6 SLtdl;lng AutoCAD 2000 7 CHUONG4 5.8. KEO DAI DOl WQNG (EXTEND) 79 cAc LENH VE CO BAN 5.9. THAY DOl CHIEU DAI DOl WQNG (LENGTHEN) 79 4.1. KHAI NII;M DOl TUQNG vs PHANG vA NHAp LENH vB .48 5.10. TAO cAc DOl WQNG SONG SONG, DONG DANG(OFFSET) 80 4.2. LI;NHvs DIEM (POINT) : : .48 5.11. LI;NH LUQN TRON (FILLET) 81 4.3. LI;NH vs DOAN THANG (LINE) .49 5.12. LI;NH VAT G6c (CHAMFER) 82 4.4. LI;NH vs cAc NUA DUONG THANG (RAY) .49 5.13. PHAN RA cAc DOl WQNG (EXPLODE) 88 4.5. LI;NH vB cAc DUONG THANG cAu TRUC (XLINE) 50 5.14. HII;U CHINH DA TUYEN POLYLINE (PEDIT) 88 4.6. LI;NH vB DOAN THANG c6 BE RONG (TRACE) 51 , 5.15. HII;U CHINH DUONG CONG SPLINE (SPLINE EDIT) 90 ... 4.7. LI;NHvs DUONG TRON (CIRCLE) 51 5.16. HIEU CHINH DOl WONG BANG PROPERTIES WINDOWS 91 4.8. LI;NH vB CUNG TRON (ARC) 53 5.17. THAY DOl DAC TfNH DOl TUQNG (CHANGE) 92 4.9. LI;NH vB DA TUYEN (PLINE) 55 5.18. LI;NH CHIA DEU (DIVIDE, MEASURE) 93 4.10. LI;NH vB DA GIAc DEU(POLYGON) 57 5.18.1- Chia thanh so cac doan bang nhau(Divide) 4.11. LI;NH vB HINH CHUNHAT(RECTANG) 58 5.18.2- Chia thanh cac doan chieu dai bang nhau(Measure) 4.12. LI;NH VE ELIP (ELLIPSE) .5 R 5.19. cAc LI;NH TRA cOtJ 94 5.19.1- Lenh ID 4.13. LI;NH vs HI~H VANH KHAN (DONUT) 60 5.19.2- Lenh DIST 4.14. LI;NH VE MIEN TO MAu (2D SOLID) 61 5.19.3- Lenh AREA 4.15. LI;NH vs DUONG CONG (SPLINE) 61 5.19.4- Xem trang thai ban ve (Status) 4.16. LI;NH VE DUONG PHAc THAo BANG TAY (SKETCH) 62 5.19.5- Xem thong tin ve doi urong ve (List) 4.17. LI;NH vs DUONG THANG KEP SONG SONG (MLINE) , 63 5.19.6- Mot so bien va lenh he thong 4.17.1- Lenh tao kieu Mline (Mlstyle) 5.20. LI;NH TfNH ToAN (CAL) 97 4.17.2- Lenh ve dirong Mline (Mline) CHUONG6 4.18. LI;NH TAO MIEN PHANG (REGION) 67 4.18.1- Lenh tao mien ph~ng(Region) cAc PHEP BIEN HiNH 4.18.2- Lenh lien ket cac regions (Union) 6.1. DOl HINH (MO v'E) 100 4.18.3- Lenh trir cac regions (Subtract) 6.2. SAO CHEP (COPY) 101 4.18.3- Lenh tach phan chung cua cac regions (Intersect) 6.3. SAO CHEP MANG (ARRAY) 101 4.19. DUNG LI;NH BOUNDARY DE TAO PLINE, REGION 68 6.4. DOl XUNG TRl)C (MIRROR) 102 CHUONG5 6.5. QUAY QUANH 1 DIEM (ROTATE) 103 cAc L¢NH TRq GIUP vA HIEU CHiNH 6.6. PH6NG TO vA THU NHO DOl WQNG (SCALE) 104 5.1. LI;NH HU6NG DAN (HELP) : 71 6.7. CO DAN cAc DOl WONNG (STRETCH) 105 5.2. HUY BO LI;NH VUA TH1!CHII;N (U, UNDO) vA PHUC HOI 6.8. VUA DOl, QUAY vA THU PH6NG Dor WQNG (ALIGN) 106 DOl WQNG SAU LI;NH UNDO (REDO) 71 6.9. HII;U CHINH DOl WQNG BANG K~P (GRIPS) .107 5.2.1- Lenh U va Undo 6.9.1- Cac chirc nang hieu chinh voi Grips 5.2.2- Lenh phuc hoi (Redo) 6.9.2- Tao mang cac doi tuong bang Grips 5.3. TAl TAO LAI BAN vs (REGEN) 72 CHUONG7 5.4. LI;NH vB,LAI BAN V~ TREN MAN HINH, xoA DAU BLIP (REDRAW) 73 DIEU KHIEN MAN HiNH QUAN SAT BAN VE 5.5. CHQN DOl WQNG DE HII;U CHINH 73 7.1. THU NHO, PH6NG TO MAN HINH (ZOOM) 111 5.6. xoA HoAN ToAN HAY 1 PHAN DOl TUQNG (ERASE, TRIM, BREAK) 75 7.2. nNH TIEN MAN HINH (PAN) 113 5.6.1- Lenh xoa hoan toan doi nrong (Erase) 7.2.1- Lenh Realtime PAN 5.6.2- Ngilt bo 1 doan cua doi nrong (Braeak) 7.2.2- Cac lua chon khac cua PAN 5.7. CHAT BO 1 PHAN DOl WQNG (TRIM) 76 7.2.3- Lenh -PAN 5.7.1- Lenh Trim 5.7.2- Lenh Extrim
8 sit dl;lng AutoCAD 2000 9 7.3. LENH VIEW 114 10.4. HI$U CHINH KICH TRUdc 148 7.4. QUAN SAT BAN VE TUPHIA TREN (FROM ABOVE- AERIAL VIEW) 114 10.4.1- L~nh DIMEDIT 7.5. L$NH REDRAW 116 10.4.2- Lenh DIMTEDIT 7.6. DRAG MODE 116 10.4.3- s& dung cac lenh hieu chinh hinh ve d~ hieu chinh kich thiroc 7.7. BIEN VIEWRES HI$N DUONG TRON, CUNG TRON 116 10.4.4- Hieu chinh kfch thuoc bang Properties Window 10.4.5- Hieu chinh kich thuoc bang kep Grips CHUONG8 CHUONG 11 HUaNG DAN VE HiNH CHIEU THANG GOC vA GHI VAN BAN VAo BAN VE HINH CHIEU TRl)C DO 11.1. DJNH DANG KIEU CHU (TEXT STYLE) 152 8.1. cAcH VE cAc HINH CHIEU THANG GOC 117 11.2. NHAP DONG CHUBANG L$NH TEXT 153 8.1.1- Dung POINT FILTER 11.2.1- Nhap dong chir bang lenh Text 8.1.2- 8.1.3- Dung RAY hoac XLINE Dung OFFSET Ie 11.2.2- Can dong chir 11.2.3- Cach nhap tieng Viet co dau 8.2. cAcH vE HINH CHIEU TRUC DO 119 11.3. NHAP DOAN VAN BAN VAo BAN vE AUTOCAD(MTEXT) 155 8.2.1- DlIttSnap va Grid 8.2.2- Cach ve hinh chieu tnic do vuong goc deu 11.4. HIEU CHINH VAN BAN 156 11.'4.1- Hieu chinh bang lenh Ddedit 8.2.3- Ve hlnh chieu true do xien goc(Oblique) 11.4.2- Hieu chinh doan van ban Mtext bang lenh Mtprop CHUONG9 11.4.4- Hieu chinh dong van ban bang lenh Change G~CHM~TCAT CHUONG12 9.1. TRINH TlJTHlJC HI$N GACH MAT CAT 124 T~OLOPD~QuANLfBANVE 9.2. L$NH BHATCH 124 12.1. KHAI NI$M VE tor, MAu sAc, DUONG NET 158 9.3. LENH HATCH 129 12.1.1- Lap (Layer) 9.4. Hi$u CHINH MAT CAT (HATCHEDIT) 131 12.1.2- Mau sac 9.4.1- Hieu chinh bang lenh Hatchedit 12.1.3- Ki~u dU("i1gnet 9.4.2- Hieu chinh bang Properties Window 12.2. LENH LAYER 161 CHUONG 10 12.3. THA Y DOl DAc TINH CUA Ldp QUA THANH OBJECT PROPERTIES 162 GHI xtcn THlJOC 12.4.THAY DOl DAc TfNH CUA i.or QUA PROPERTIES WINDOW 163 10.1. cAc THANH PHAN CUA KICH TRUdc 133 CHUONG13 10.2. TAO KIEU GHI KicH THUdc vA cAc BIEN KICH TRUdc 133 T~O KHOI vA CHEN KHOI(BLOCK) 10.2.1- Trinh ur tao kieu ghi kich thiroc moi 13.1. Y NGHIA CUA VIEC TAO KHOI , 165 10.2.2- Thay d6i 1 kieu ghi kich thiroc da co 13.2. TAO KHOI(BLOCK) 165 10.3. cAc L$NH GHI KICH TRUdc 140 10.3.1- Cach goi lenh ghi kfch thiroc 13.3. CHEN BLOCK vA CHEN FILE BAN vs 166 13.3.1- Lenh Insert 10.3.2- L~nh DIMLINEAR(Linear) 10.3.3- Lenh DIMALIGNED(Aligned) 13.3.2- Chen Block thanh mot day(Minsert) 10.3.4- DIMDIAMETER(Diameter) va DIMRADIUS(Radius) 13.3.3- Dung lenh DIVIDE d~ chen Block vao cac diem chia 10.3.5- DIMCENTER(Center Mark) 13.3.4- Dung lenh MEASURE d~ chen Block vao cac diem chia 10.3.6- Lenh DIMANGULAR(Angular) 13.4. GHI BLOCK THANH MOT FILE(WBLOCK) 170 10.3.7- Lenh DIMORDINA TE(Ordinate) . 13.4.1- Ghi Block thanh 1 file 10.3.8- Lenh DIMBASELINE(Baseline) 13.4.2- Ghi nhorn 1 so doi nrong thanh 1 file 10.3.9- Lenh DIMCONTINUE (Continue) 13.5. PHAN RA BLOCK(L$NH EXPLODE, XPLODE) 171 10.3.10- Lenh QDIM 13.5.1- Phan ra Block trong khi chen 10.3.11- Lenh LEADER 13.5.2- Phan ra Block sau khi chen bai lenh Explode 10.3.12- Lenh QLEADER 13.5.3- Phan ra Block sau khi chen boi lenh Xplode 10.3.13- Ghi dung sai hinh dang va vi trf(Tolerance)
SLr dl;Jng AutoCAD 2000 11 10 16.2.2- Lenh Pastespec 13.6. HI$U CHINH LAI BLOCK DA. D~NH NGHIA 172 16.2.3- Lenh Pasteblock 13.6.1- Dtnh nghia l
12 sil dl)ng AutoCAD 2000 13 19.1.4- Mo hinh khoi ran (Solid) 20.6.3- Ghi kich thuoc trong 3D 19.2. MO HINH 3D KHUNG DAy (WIREFRAM) 247 CHUaNG 21 19.2.1- Mo hinh khung day la gi 19.2.2- v: da tuyen 3D (3D polyline) TAO MO HINH KH(jI RAN(SOLIDS) 19.2.3- Hi~u chinh 3D polyline 21.1. TAO MIEN DAC(REGION) 280 19.2.4- Ve dirong cong tron Spline 21.2. cAc SOLIDS GOC (SOLID PRIMITIVES) 282 19.3. MO HINH MAT 2112 CHIEU (KEO DOl TVQNG 2D THANH MAT 3D) 250 21.2.1- Kh6i h9P(Box) 19.3.1- Dat be day keo len (lenh Elev, Thickness) 21.2.2- Kh6i hinh nemrWedge) 19.3.2- H~~uchinh d6i nrong 2D thanh mat 3D 21.2.3- Kh6i n6n(Cone) 19.4. MAT PHANG 3D (3DFACE) 252 21.2.4- Khoi trl;l(Cylinder) 19.5. cAc MAT 3D CHUAN (3D, AI_BOX, AI_CONE, ) 253 19.5.1- M~t khoi h9P (Box, AI_Box) 21.2.5- Kh6i caut Sphere), 19.5.2- Mat da dien Pyramid(AI_Pyramid) 21.2.6- Kh6i xuyent'Torus) 19.5.3- M~t hinh nem Wedge (AI_Wedge) 21.3. cAc SOLIDS TRON XOA Y(REVOL VE) 285 19.5.4- Nira mat cau tren Dome(AI_Dome) va rnra mat cau duoi Dish(AI_Dish) 21.4. KEO DOl TVQNG 2D THANH KHOI RAN 3D(EXTRUDE) 286 19.5.5- Mat cau Sphere (AI_Sphere) 21.5. TAO SOLID DA HQP nor cAc PHEP ToAN BOOLE 288 19.5.6- Mat non, tru (AI_Cone) 21.5.1- Cong cac Solids (Union) 19.5.7. Mat xuyen Torus (AI_Torus) 19.5.8- M~t luoi Mesh(AI_Mesh) 21.5.2- Trir cac Solids (Subtract) 19.6. MAT Lu6I4 CANH (EDGESURF) 259 21.5.3- Giao giira cac Solids (Intersect) 19.7. MAT LVOI DA GIAc (3DMESH) 259 21.6. cAc BIEN MAT DO LVOI vA KHUNG DAy CVA MO HINH 19.8. MAT PHANG GHEP(PFACE) 260 KHOI RAN 3D 289 19.9. MAT TRON XOAY (REVSUZY) 261 21.7. VI DU VE THIET KE MO HINH 3D CVA VAT THE 290 21.7.1- Vi du 1 19.10. MAT KE (RULESURF) : 263 i 21.5.2- Vi du 2 19.11. MAT TRl) D~NH HVONG (TABSURF) 263 19.12. HI~U CHINH MAT LVOI 3D (PEDIT) 264 ~ CHUaNG 22 CHUaNG 20 HI~U CHiNH MO HINH KH(jI RAN 22.1. VAT MEP KHOI RAN(CHAMFER) 297 cAc L~NH HO TRQ CHO VE 3D ) 22.2.LVQN GOC KHOI RAN(FILLET) 298 20.1. KHONG GIAN MO HINH (MSPACE), KHONG GIAN GIAY (PSPACE) i 22.3. CAT DOl KHOI RAN(SLICE) 299 vA TAO cAc KHUNG NHIN(VIEWPORTS) 265 22.4.T AO MAT CAT(THIET DI~N) CVA KHOI RAN(SECTION) 30 I 20.2- TAO cAc KHUNG NHIN(VIEWPORTS) 265 20.2.1- Tao cac khung nhin tinlulenh Vports) CHuaNG 23 20.2.2- Tao cac khung nhin dongflenh Mview) TO BONG MO HINH KH(jI RAN 20.3- LOP TRONG KHUNG NHIN(VPLA YER) 268 23.1. PHU MAu LEN MO HINH KHOI RAN(SHADE) 302 20.4- L~NH MVSETUP 270 20.5- cAc PHEP BIEN HINH TRONG vs 3D 274 23.2- L~NH TO BONG(RENDER) 303 20.5.1- Quay mo hlnh quanh mot trl;lc(Rotate3D) 23.2.1- Cac nguon sang 20.5.2- Phep d6i xirng qua mat phAng(Mirror3D) 23.2.2- Tao va thay d6i nguon sangrl.ights) 20.5.3. Sao thanh mang cac d6i tuong 3D (3 Darray) 23.2.3- Gan vat lieu cho d6i urong to b6ng 20.5.4- Sap xep d6i nrong 3D bang can ehinh(Align) 23.2.4- Lenh Scene 23.2.5- Ghi lai va goi ra cac anh dii to b6ng(Saveing, Replay) 20.6- TAO KHOI(BLOCK), CHEN KHOI (INSERT), 23.2.6- Lenh Background GHI KICH THVOC TRONG.3D 276 23.2.7- Lenh Fog 20.6.1- T';\okh6i(Block) 20.6.2- Chen kh6i(lnsert)
14 sl't dl;lng AutoCAD 2000 15 CHUONG24 CHUONG27 PHAN TICH cAc D~C TINH CVA KHOI RAN HUONG DAN MOT s6 BAI T~P THVC HANH VE 3D 24.1. PHAN rtcn cAc DVONG BAO THA Y, KHuAT TREN BAI TAp 1 Ve rna hlnh 3D cua vat th~ ran va duoc cat bo i g6e d~ thay 10 e6 bac, Biet each sir dung Mq HINH 3D (SOLPROF) 310 cac lenh ve co ban, cac lenh hieu chinh va thay d6i he toa d(>UCS trong khi ve 360 24.2. KIEM TRA Sl/GIAO NHAU GIUA cAc SOLIDS (INTERFERE) 311 BAITAp2 24.3. TAO cAc HINH CHIEU 2D TlrMO HINH KHOI RAN 3D 312 Lap ban ve chi tiet may GIA DO voi cac hlnh chieu dirng, hinh chieu bang, 24.4. TAO KHUNG NHIN DONG Val cAc HINH CHIEU, HINH cAT, hlnh chieu canh va hinh chieu true do 365 HINH CHIEU PHl)(SOLVIEW, SOLDRAW) 316 " BAI TAp 3 24.5. PHAN TiCH KHOI LVQNG, KicH THVOC KHOI RAN (MASS PROP) 320 Lap ban ve chi tiet may NAp TREN voi cac hlnh chieu dirng, hinh chieu bang, CHUONG25 hlnh chieu canh, hlnh chieu true do va hinh edt dlje llj,p 371 XUAT BAN VE RA GIAY BAITAp4 Lap ban ve chi tiet may GOI TRl)C voi cac hl~h chieu dung, hlnh chieu bang, 25.1. cAc KHAI NII;:M co BAN LIEN QUAN DEN IN BAN vs 321 hlnh chieu canh, hlnh chieu true do va cdc hinb edt lien quan voi nhau 380 25.2. TAO LAYOUT TRVOC KHI IN 321 25.3. THIET LAp TRANG IN TREN MOT LAYOUT BANG HOP THOAI PAGE SETUP 322 PHAN III 25.4. THIET LAp TRANG IN TRENMOT LAYOUT BANG LAYOUT WIZARD 324 25.5. DJNH TY LI;:CHIEU RONG NET'IN (LINEWEIGHT SCALE) 327 25.6. GAN LVQNG Ml/C IN (SCREENING) 328 25.7. DAU DVONG KHuAT KHI IN TREN VIEW PORTS (HIDING LINE) 329 25.8. TAO VIEWPORTS Val KHUNG co HINH DANG BAT KY 329 25.9. GHI KiCH THUOC TRONG PSPACE 331 CHUONG28 25.10. DJNH cAu HINH CHO THIET BJ IN 332 MDI TRlJONG PHAT TRIEN GIAO TIEP AUTO LISP 25.11. SVDl)NG KIEU IN(PLOT STYLE) vA BANG KIEU IN (VISUAL LISP) (PLOT STYLE TABLE) 334 28.1. KHdI DONG VISUAL LISP 390 25.12. TIEN HANH IN BAN vE(PLOT) 337 28.2. CONSOLE WINDOW 390 25.13. QUI TRINH IN BAN vs 339 28.3. CVA so VISUAL LISP '!EXT EDITOR 391 25.14. IN cAc ANH TO BONG 344 28.4. TAl vA CHA Y CHVONG TRINH AUTO LISP 392 2X.4.1. Chay mot chuang trinh CHUONG 26 2X.4.2. Chay cac dong rna tuy y chon XUAT BAN VE THANH T~P TIN VA TAO ANH D
16 CHUONG29 cAc VAN DE co BAN CVA AUTOLISP 29.1. Md DAU AUTOLISP .402 29.1.1. Cau tao chuang trlnh AutoLISP 29.1.2. Soan thao chuang trinh 29.1.2. Tai chuang trinh AutoLISP 29.1.3. Chay chuang trinh AutoLISP 29.1.4. Tao them lenh cho AutoCAD 29.2. cAc KHAr NII;:M co so TRONG AUTOLISP .406 29 .2.1. Bi~u thirc trong AutoLISP 29.2.2. Cac kieu dfr lieu cua AutoLISP A' A 29.2.3. Oie bien trong AutoLISP PHANMOT 29.2.4. Cac ham (hay lenh) trong AutoLISP 29.2.5. Cac ham (hay lenh) co ban cua AutoLISP 1). Ham Quote ? ~ ~ 2). Ham Setq 3). Ham tra ctru va gan gia tri cho bien he thong cua AutoCAD 4). Ham nhap dfr lieu BAN VE PHANG 5). Cac ham roan 6). Cac ham xu Iy chuoi ky tl!(String) 7). Ham xu Iy danh sachfl.ist) 8). Ok ham logic 9). Cac ham hlnh hQC va luong giac 10). Ham kiem soat loi 29.2.6. Nh~p va xuat CHUONG30 cAu TRUC TRONG CHUONG TRINH AUTOLISP 30.1. HAM DIEU KII;:N (IF) .424 30.2. HAM LlJA CHQN (COND) .425 30.3. HAM PROGN 427 30.4. VONG LAP Hill HAN(REPEAT) .427 30.5. VONG LAP KHONG BIET so LAN(WHILE) .428 30.6. HAM FOREACH (XVL Y LIST) .430 30.7. LENH COMMAND TRONG AUTOLISP .430 30.8. cAe vi DlJ VE cAc cHlfdNG TRINH DO HOA .432 * CHlfdNG TRINH AUTOLISP TRONG 3D .437 PHlJ LlJC 443 === * ===
Slt dl;lng AutoCAD 2000 19 3Dorbit: la lenh d~ quay diem nhln dci voi mo hinh 3D. V6'i hra chon Gouraud trong lenh nay ban co tM quay diem nhin ngay ca khi mo hinh 3D da to bang. V6'i hra chon Continuous orbit ban co the quay dong mo hinh 3D da to bang. CHUONG 1 Tao UCS doc lap tren tung Viewport. - Tao ki~u va cac lenh ghi kfch thuoc moo: trong hop thoai "Dimemsion Style MODAU Manager" co hien thi anh minh hoa cac kich thuoc chon. Co them cac lenh ghi kich thuoc Ut Qdim, Qleader. l.1.GIOI THI~U AUTO CAD 2000 AutoCAD 2000 duoc ket hop chat che voi internet: caclenh Open, Save co Cong nghe thiet ke va gia cong diroc tro giup cua may tinh (CAD_Computer Aided th~ tim kiern va cap nhat cac ban ve va cac du an tren internet. Design. CAM_Computer Aided Manufacturing) dang duoc su dung nhieu trong cac linh vue ky thuat va trong san xuat. No thuc su thay d6i ve chat trong cong tac thiet ke va gia 1.2. KHOI DONG VA MAN HINH DO HOA. CUA AUTOCAD 2000 cong va mang lai nang suat lao dong cao hon, chat Iuong tot hon. 1.2.1. KhOi dong CAD thuong duoc irng dung trong cac linh vue sau: Ve kien true, xay dung, ve ky Neu trong may da cai d~t chirong trinh AutoCAD 2000, d~ khoi dong ban di con tro thuat COkhi, dien nr, oro, hang khong, ve ban do, thiet ke studio nha hat, quay phim, ve a vao bieu tU"{1ng(hlnhl.1) tren man hinh Windows Desktop va nhay diip 2 Ian phim trai cac kieu trang tr'lhiep moi v.v... Su dung CAD ban co th~ lap cac ban ve thiet ke 2 chuot. chieu(2D-two dimensions), cac mo hinh 3 chieu(3D-three dimensions) va co th~ phan tich, . Neu tren Windows Desktop chua co bieu nrong nay thi ban tao bieu tuong bang each tfnh toan cac ket cau bang phirong phap phan tll' hiru hL;ln(FEA-analysis). an phirn phai chuot tren man hinh Windows Desktop va tiep tuc chi vao: Hien nay tren the gioi d!l co rat nhieu phan mern CAD, nhung AutoCAD la phan N ew>S hortc utz-Brow set-Pro gram files>Acad2000>billl tl((;mg>O nz-Next> Finis h. pe mern cua hang AutoDesk dang diroc sir dung ph6 bien nhat. Cac ban ve thl;i"chi¢n bang Ban cling co the khoi dong bang file acad.exe trong thu muc Acad2000. thu6'c va compa thi deu ca th~ sll'dl;lngAutoCAD thl;l'C hi~n chfnh xac, nhanh chang hon. 1.2.2. Man hlnh AutoCAD2000 Phien ban m6'i nhat cho t6'i nay la AutoCAD 2000. Na cIWy trong moi truang ella Sau khi khoi d¢ng, man hlnh AutoCAD2000 xuat hi~n h¢p tho
21 20 ChU'dng 1: Mc1dau - Trang Start from Scrastch: neu an nut Metric thi ban ve moi co don vi la mm va kich thiroc 420x297; con nut English thi don vi la insh (tac Anh) va kich thuoc 12x9. - Trang Usre a Template: cho phep ban Slr dung cac ban ve mauf'Iemplate) eo san cua AutoCAD 2000 (cac files nay eo duoi la "DWT). Ban eo th~ chon ban ve mau ANSI- tieu chuan My, ISO-tieu chuan quae te, Dll-l-tieu chuan Due ... - Trang User a Wizard: a day ban co th~ tu xac lap don vj(UNITS), kich thuoc rieng eho ban ve mau ban dau dua tren rnau cua aeadiso.dwt. * Chit j: neu h9P thoai Startup hoac h9P thoai Creat New Drawing khong xuat hien, ban rna h9P thoai Options nhir sau: Menu bar>TooI>Options>System>Danh (Mil () "Show Startup dialog" H9P thoai Options diroc chi ra (j hinh 1.4 duoi day. Neu ban khong sir dung 4 trang noi tren, hay an vao nut Cancel hoac phim ESC d~ tro v~ man hinh AutoCAD 2000 (hlnh 1.3). Duoi day trinh bay eae \lung man hinh: B;,E:.?
22 ChLtdng 1: Md dau sa d\Jng AutoCAD 2000 23 - Toolbars: la cac thanh cong cu chua cac nut lenh cua AutoCAD. Tren dinh an m Tren h9P thoai tool bars ban chi VaGcac a vuong se lam hien ra hay tat di cac thanh hinh thuong co thanh cong C1;l huan Standard c toolbar. Cac thanh cong C1;lkhac co th~ d uoc I . /t" t be, cac cac h sau d ay: , cong C1;lren man hinh do hO hop thoai Toolbars (hinh 1.7). 300ibit th~ chi con tro len phia tren thanb cong ClJ nay, an phim trai chuot giii va di toi vi tri can 2). Dung Pull-down menu: View> Toolbar> hop thoai Dimension dat thanh cong C1;l ho tien loi. c Toolbars. " DraW Inquiry 2). Dung Pull-down menu: View> Toolbar> hop thoai H tch Insert Toolbars. Lay~4ts Tren h9P thoai Toolbars ban danh dau VaGcac a nao rna ., Mo'dify ban muon hien hay tat cac Toolbars, MOdify" " ..Object Properties !~mmlllll.II.:1111mlll_ I;_?I·~J ". Object Snap Hinh 1.9: Thanh cong C1;l oolbar cac lenh Draw. T Refedit Reference 5- Shortcut menu: shortcut menu la h9P thoai menu phim tat; no chua cac D3D Orb it Hender lenh va cac hra chon giup ban ve nhanh chong han. Khi ve ban co the lam no xuat en bat hi 181 Dimension Shade cir hie nao bang each dira con tro VaGvung do hoa va nhay phim phai 181 Draw .!:!ew... Souds TemporalJ'tracls point Dlnquiry chuot. Duoi day la 6 shortcut menus trong vung do hO
24 Chltdng 1: Md dau b- COMMAND: khi dang thirc hien mot lenh rna ban an phfm phai chuot thi hop CHUONG 2 thoai shortcut menu se hien ra. Trang do chua cac lua chon lien quan den lenh nay. cAc L(tNH TI(tN iCH VE FILE c- OBJECT SNAP: neu ban an shift + phim phdi chuot thi hop thoai shortcut menu se hien ra. Trang do chua cac che do bat diem tarn thai va bat diem thirong tnitosnap 2.1. CACH NH~P L~NH VE FILE setting), dong thai con cho ta plurong phap IQctoa dQ dierntpoint filter). 2.1.1. Nhap cac lenh ve file tir Pull-down menu d- DEFAULT: khi huy bo(U) hay khong huy bo(UNDO) cac doi nrong hay lenh Chon danh mue chinh File ella menu bar ta co Pull-down menu chua cac lenh lien rna ban an phfm phai chuot thi hop thoai shortcut menu se hien ra. Trang do chua cac lenh quan den File ban \:c nlur: New, Open, Close, Save, Plot, Exit ... (hinh 2.1). Trang 111Qt thong thuong nhu: copy, paste, zoom, pan. . so lenh file co cac hop thoai file ta se nghien ctru duoi day. e- OLE: khi ban Slr dung doi nrong OLE rna an phfm phai chuot len no thi hop thoai shortcut menu se hien ra. Trong do chua cac lua chon d~ hieu chinh doi nrong do. f- GRIPS: khi chon GRIP tren doi urong sau do an phim phai chuot thl hQP thoai shortcut menu se hien ra. Trang do chua cac hrachon M hieu chinh bang grips. I * Clui y: neu cac shortcut menu do khong hien ra tren man hinh do hoa thi ban --_ Byl.eyer ... ' dung chuot chi nhu sau: Danh muc Ir -T=-o-o--=-Zs->-O=-p-(-:-io-n->-U-s-e-r-p-re-ifj-er-e-n-c-e-s - chinh FILE sau do hien ra hop thoai Options va ban danh dau van 6 "shortcut menus in drawing area", tu day se co cac hop thoai shortcut menus. DO DO Plot St,l!leManager... 6 - Dung cac phim dieu khien va go tat lenh + Plot Pre;tiew F1 - xem tro giup CJ. flot... F2 - chuyen d6i man hinh do hoa voi man hinh van ban o Drawing.!.IJilitie$ F6 = Ctrl+D - hien thi toa dQ dong ella con tro Seng... Drawing Pr()pei~es: .. F7 = Ctrl+G - tat/rna hien thi luoi (GRID) / .' 1C:\HIEN_DWG\L-trucn dwg F8 = Ctrl+L - tat/rna che dQ ORTHO chi ve dirong thang dirng hoac nam ngang ZA:\b~tgiac;:dwg " F9 = Ctrl+B - tat/rna che d(>luoi (SNAP) -'1" 'lC:\HIEN\batgiC)c.dxf··' 1!J FlO = Ctrl+U - tat/rna che dQ polar tracking _ 4 C:\HIEN DWG\do360.dwa Fll = Ctrl+W - tat/rna object snap tracking Hinh 2.1: Cac lenh vc file tir Pull-down menu. Ctrl- 1 - lenh propoties 2.1.2. Nhap cac lenh ve file tir Standard Toolbar: Ctrl+Ctrl+2 - hien ra AutoCAD DesignCenter window Standard Toolbar thirong d~t tren dinh man hinh (hinh 2.2). Ctrl=C - copy doi nrong ve len clipboard New S' ve Cut Paste Redra All Ctrl- N - lenh new Ctrt=O - lenh open Ctrl-sP -l~nh plot hay print Ctrl--S - lenh save, qsave Hinh 2.2: Standard Toolbar. Ctrl-s V - lenh dan d6i nrong tir clipboard van ban ve R -l~nh redraw d~ lam sach ban ve kh6ng con dau "+" (blip) 2.1.3. Nhap cac lenh ve file tir Screen menu ESC - huy b6 l~nh dang tien hanh Xem hQp tho:;ti Screen menu a hlnh 1.6. Tren do chQn danh m~c chinh File ta cung co cae l¢nh ve File. Shif+phim phai chU(?t - hi~n ra h(>ptho
26 ChLtdng2: Cac I~nh ti~n ieh ve file Slt dl:lng AutoCAD 2000 27 * MO NHFEU FILES BAN VB MOT LUC D6i voi AutoCAD 2000 ban co th~ rna va lam viec voi nhieu ban ve cung 1 hie. Danh sach cac files duoc rna hien ra tren Pull-down rnenu cua danh muc chinh Window tren rnenu bar (hinh 2.5). 2000 ~ .; ]Xe1.dwg EXel.dwg .1batgiac.dwg . ...................................................... I Hlnh 2.5: Danh muc chinh Window. Tren Pull-down menu do hoac dung lenh SYSWINDOWS cho phep ban sap xep Hmh 2.3: Creat New Drawing. cac files dJ rna theo nhieu each nhir sau: 2.2.2. MiJ ban ve da co (Open) - Cascade: cac windows ban ve chong len nhau, chi thay thanh tieu d~ (title bar). D~ rna ban ve ta co h(>pthoi;liSelect File>ch9n nut Open. Cach rna h(>pthoai nay: - Tile Horizontally: sap xep cac windows k~ nhau theo chieu ngang(hlnh 2.6) - Tile Vertically: sap xep cac windows ke nhau theo chieu dirng. 1). Pull-down menu: File> Open> H()p tholJ,iSelect File (hlnh 2.4) 2). Standard Toolbar: nut Open> Hop thoai Select File - Arrange icon: chi sap xep cac bieu nrong cua windows. 3). Go lenh: Open > Hop thoai Select File 2000 ~ 11W1~1.~I!'JJf)J~' -I~Ixl !:ielp WSample CJ Support CJ Template {~ .oii ~ /~;:J r,::-,__,.--,----n ==~:..:JDrawinQ Ternolete ~e F f'.dwtl Hlnh 2.4: Hop thoai Select File. - Tren Bang Look in: ban chon thu muc bang each chi con tro vao nut ....thi danh a sach cac files ban ve se hien ra 6 duoi. Ban chon 1 file ban ve roi an nut Open sau do ban ve duoc rna ra. - Tren bang File of type: a phfa duoi hop thoai do chi con tro vao nut ...., ban co th~ dinh loai file can rna nhir: file ban ve AutoCAD la AlitoCAD 2000 Drawingt+dwg}, file factor or ban ve mau la AlItoCAD Drawing Template File(*.dwt), AlItoCAD 2000 DXF(*.dxf) ~.. .._~w_' mm_.~""_""·'''''~.·_ __ _ • ''''__ __ ~_...M'''"_'''".,,_'''... ~,,__ _'''''.m''''''_;_:,'''''~'''''''''_._~'''_._,,_'''~, . - Nut Partial Open: hien hop thoai M ban co th~ rna open, tai load mot phan cua ~Q~=j.?~L [~~t .... ;
sl't dl)ng AutoCAD 2000 29 28 . . ChLtdng 2: Cac lenh tlen ieh ve file _ an vao nut Yes: cat ban ve roi moi dong 2.2.3. Cat ban ve thanh mot file(Save, Saveas) _ an vao nut No: dong ban ve rna khong cat , - ~~n~ Sa~,e: d~ c,at nhanhrnoi tiep) vao ban ve eli rna sau nhat, khong can hoi. _ an vao nut Cancel: huy bo lenh dong (close) tro lai ban ve. cach nha I~nh cat nhanh ban ve: * Chu y: 1). Pull-down menu: File> Save + Ban nen dong lai bdn ve nao mel khong dung tai de'tier kiem bo nho. 2). Standard Toolbar: nut Save +De' thu nho 11)(111 liinh, hay chi VaG 6 co ddu "_" d goc phdi-tren cua ban ve. - Lenh Saveas: d~ car ban ve thanh 1 file voi ten moi, ta co hop thoai Save Drawing As. Caeh rna h(>ptho~i nay nhu sau: 2.2.5. Xuat ban ve sang cac dang file khac (Export) 1). Pu_ll-,downmenu: Fil~ > Saveas > Hc,p tho:;ti Save Drawing As (hlnh2:7) Lenh Export clio phcp ban xuat du li~u cua ban ve AutoCAD sang cac dang file co 2). Go lenh: Save > HQP thoai Save Drawing As cac duoi khac. Nh6' do ta co th~ trao dbi du lieu ban ve voi cac phan mem khac. Diroi day Save Drawing As ' iiiEf la cac each nh~ l~nh Ex ort: 1). Til Pull-down menu: File> Export> Ht)p thoai Export Data (hinh 2.9) Selve jrF " ,J ,~ Acad2000 2). Go lenh: Export hade Ctrl+O hien ra hop thoai Export Data :::.J Dala Links -.I Plot Slyles DTutorial Drv L::J Plotters Im'A4n.dwg Export Data II C:J Sample ~ A4· TCYN ,dwg -.I Support I·.:::J Hien i.::J Template CJ Textures "Filename: Immr' ,~clYe Save as!ype,:1 r;A~ut:-'oc;.:::"-;::::)-;:2:::::00::::0-;:::D"';'raw-i-ng~(·-.d:-w-:-gl--""'_--..oy Hop thoai Save Drawing As. ~ren ban~ "Save in" ban chon thu muc d~ cat ban ve bang each chi vao nut ... thi a ~!a~h sach c~~ fl~es d,a ~o se, hien ~a 0 diroi d~ ban chon. Hoac go ten file ban ve trong 0 File name: , va chi vao nut ... a 0 "Save as type:" d~ dinh kieu file can ghi roi an nut Save ban ve se duoc ghi. ' 2.2.4. Dong file ban ve va thu nho man hinh ban ve(Close) Hop thoai Export Data. e D'd' ong 1 file ban ve ban lam nhu sau: 1)- Dung Pull-down menu: File> Close ~, 2)- An vao 0 vuong co dau "X" (1 g6c phai-tren ella ban ve * Vi du sir dung lenh Export Gia sir ban muon chen 1 ban ve vao 1 tai lieu soan thao bang phan mem Word, hay 3)- Go lenh: Close , , , , " , , lam nhu sau: . ' Sa~, do, tIer: rr:an hmh,.xuat hien h9P thoai (hinh 2.8) nhac ban co ghi l~i ban ve 1- Vao Auto CAD 2000 va rna ban ve ra khong, neu ban ve da thay doi: "Save changes to Drawing'Ldwg ?" 2- Nhap lenh Export: AutoCAD EI chon kieu file xuat tren hop "Save as type:" la Metaflle(*.wmt) ."," an con tro vao 0 "File name:" va go ten file xuat '(:.l,l ,,'.,,/r." S~ve changes to Dlawingidwg? 3- Chon thtr rnuc de ghi vao bang each chi len 0 "Save in:" 4- An nut "Save", hop thoai tat va AutoCAD nhac b~n ch9n cac doi tuqng ve d~ xuat "Select objects:". Xuat ca ban ve thl ch9n ALL va an ENTER. 5- Ma van ban Word ra, d~t con tro vao eh6 chen ban ve Hinh 2.8: J:I(>p tho~i nMe nha khi ghi h.liban ve.
30 ChLtdng2: Cac I~nh ti~n ich ve file sl't dl;lng AutoCAD 2000 6- Chen: menu bar> Insert> Picture> From file > Hien hop thoai Insert Picture 2.2.8. Thoat tarn thot man hmh AutoCAD ra thuc hien lenh cua he (hinh 2.10 diroi day). dieu hanh(Shell) File of type: ban chon "Windows Metafile(*.wmf) Lenh SHELL duoc nhap bang go ten lenh tir ban phim: Look in: ban chon thu muc va ten file(*.wmf) can chen . Command: shell (SH) - Chi vao nut Insert va sau do an vao Cancel la ban ve diroc chen vao van ban. OS command: -cnhap lenh cua he dieu hanh> Xuat ban ve ra cac tep tin khac duoc trinh bay them 6 chuong cuoi phan II. Sau khi thirc hien lenh cua he dieu hanh xong, muon tro ve man hinh AutoCAD ban go Exit: Command: Exit Inser. Picture 6f3 Cac hop thoai Plot, Page Setup ... se diroc trinh bay 6 chuang cuoi phan II. Insert Cancel == * == @ . £idvaI'1Ct;d; ,. r Lin!s_tofIle Find files that match these search criteria: File Q.ame: . I' ::::1'.Te~tw,prciperty: I Ejnd Now Files oftvpe: ,...W-in .... do-w-s-M-e t e-("'wrn ....... , . -..,.....,~I,·last af-il .........f)................ ... m.odified:1 r-a-ny ........ .... t.... irn-e .......__...........;._.., New Search . f"".:"'_;;;""'C,-, All Files (*.*) ... 11 f1le(s)foun All Pictures (·.emf;*.wmf;*,jpg;"'.jpeq; Windows Enhanced '·.'letafile "'.emf ~- ........ -- ........ ----------~- ~11IJf@]:~l ~ IJPEGFile Interchange Format (*.jpg;*.j _'__.L.:;:;;.L~~IPortable Network Graphics(" .ono) ...._,t:-::-~~~ . ........ ~--:---....._ .......... .........J Hinh 2.10: HQp thoai Insert Picture. 2.2.6. Phuc hoi file ban ve (Recover) Lenh Recover d~ phuc hoi ban ve. Co hai each nhap lenh Recover: ). Pull-down menu: File> Drawing Utilities> Recover> nu« hop thoai Select File (hinh 2.4 o' tren) ~ ). Go l¢nh: Recover> Hi¢n hQpthoCJiSelect File (hinh 2.4 0- trerl) Tren hQP thoai ban chon file can phuc h6i va an OK. 2.2.7. Thoat khoi AutoCAD va ket thuc viec ve (Quit, Exit) - Lenh Quit dung d~ dong(Close) ban ve va thoat khoi AutoCAD - Lenh Exit giong nhu Quit, nhung Exit con tl! dong ghi lai cac thay d6i ban ve. Cac each thoat khoi AutoCAD: 1). Pull-down menu: File> Exit ~?). hi ten ddu "x" 0- g6c phdi-tren cLlamim hinh AutoCAD nhay chllot C 3). Chi 1hz bill( tUlfngeLlaAutoCAD o' g6c trai- tren eLlaman hinh(hinh 1.1) 4). Go lenh: Exit hoiic Quit ~ * Chu y: Khi dang o' trong AutoCAiJ ban khong nen tat I1UlY neu chua dung lenh. thodt khoi AutoCAD. Vi lam nhu v{iyldn sau khOi dong may se-g{ip lDi.
Slt dl;lng AutoCAD 2000 33 CHUONG 3 Co th~ vao dfr lieu tir ban phirn, vao bang phim chuot, tablet va cac phim dich chuyen sci toct Cross hair). NH~P DIEM vA PHUONG THUC BAT DIEM . 3.2.1. Cac each nhap mot diem Duoi day trinh bay cac each cho diem bang toa d¢ thirong dung trong thiet ke: 3.1. H~ TOA. DO 1- Dung con tro chuot, hoac phim dich chuyen tren ban phim. Co hai he thong toa do : \VeS (World Coordinate System) la he toa do the gioi hay 2- Toa de) tuyet d6i(x,y), toa de) circtkhoang each p, goc
35 34 ChLtdng3: Nh~p di~m va phLtdngthirc b~t di~m SLr dl;lng AutoCAD 2000 Neu con tro dang tren vung do hoa, ban an phim Shift va phim phai chuot se xuat 1- An SHIFT +phim phdi chuot (khi con tro (J trong vimg do hoa) hien ra hien Shortcut menu chua cac Point Fillter (hinh 3.4). Chung ta xet each dung bo 19Cdiem Shortcut menu chua cac phirong thirc cua Object Snap. qua vi du sau day: 2- Sit dung thanh cong ClJ Toolbar cua Object Snap (hinh 3.8). * Vi du I: ve dirong tron 30rong hlnh chtr nhat 1234 (hinh 3.5). t Command: circle (hinh 3.5) racking point Nod Specify center point for circle or[3P/2P(ftr(tan tan radius): .X.J of MID Need(YZ): .Y .J of MID < chon tOI;1o Y cua diem giira doan 14> d Need(Z): O.J s Specify radius of circle or[Diameter]: 30 8- Dung lenh CAL nhap diem: (xem chuong 5, tier 5.20) "Inh 3.8: Toolbar Object snap. D~ hien Toolbar cua Object Snap ban c6 2 each sau: 3.2.2. Vi du nhap di~m ai-Pull-down menu: Vie'rv>Too/bar>H9P thoai Toolbar va eh911 Object snap Su dung cac each nhap diem tren day ve cac hinh, b- Standard Too/bar va all phim phdi > Object Snap a- Ve hlnh tam giac deu (hlnh 3.6) dung lenh ve doan thang Line: 3- Go 3 chit cai dilu(End, Mid, Tan, Cen...) vao dong nhdc lenh, Command: line 4- Screen menu chi ten **** hien ra Object Snap. From point: 100,120 (dung don vi mm, cho tOI;1¢ tuyet doi diem dau PI) d ¥' nghia cdc phuong thuc truy bat: , To point: @60
36 Chll'dng3: Nh~pdi~m va phll'dngthirc b~itdi~m :ill' dl;lngAutoCAD 2000 37 Vi du duoi day minh hoa each dung truy bat From. Cho hlnh chir nhat P1P2P3P4 cua doan thang hoac cung tron, dau "+" hien ra; di chuyen tiep v~ phia keo dai doan thang, (hinh 3.12), hay ve dirong tron tam 0 va ban kinh bang 25. . cung tron thi duong "----,, hien ra, ban nhap do dai keo dai. , Command: circle (lenh ve dtrong tron) * Vi du: dung lenh Line ve tam giac OAB hinh 3.14a, va dung phuong thirc bat Specify center point for circle or[3P/2P(Ttr(tan tan radius)]: Fro diem keo dai Extention ve tiep cac tam giac nhu hinh 3.14b diroi day. a Base point: END (bat dinh PI lam goc, hlnh 3.12) -Cornmand: Line : @40,35 (d~ do chon tam 0) Specify first point: Specify radius of circle or[Diameter]: 25 Specify next point or[Undo]: Specify next point or[Undo]: Specify next point or[Undo]: C -Comrnand: Line Specify first point: end Specify next point or[Undo]: ext of 20 Specify next point or[Undo]: ext Hlnh 3.11 Hinh 3.12 of 40 Phuong thirc Paralell dung d~ ve duang thang song song voi duang tMng da co. Specify next point or[Undo]: end , * Vi du: ve hinh binh hanh MNPQ co cac canh song song Ian luot voi cac duong Specify next point or[Undo]: ext thang AB, BC (hinh 3.13). of
38 ChU'dng 3: Nh~p di~m va phU'dng th(tc bat di~m Slr dl;Jng AutoCAD 2000 39 14- TEMPOARY TRACK POINT (IT) Su dung Temporary Track point (tt) ban co th~ nhap diem bang phirong phap do tim dua vao 1 diem gee, urong ll! nhu dung From, filter. Dat che do Temporary Track point ban chi vao nut Temporary Track point tren Standard Toolbar hoac Tool bar, Vi du sau day su dung Temporary Track point va lenh Break d~ cat ba 1 doan cua hinh chfr nhat (hinh 3,16). Command: Break Select object: Specify"second break point or[First point]: F Specify first break point: tt Specify OTRACK point: end Specify first break point: @20,0 Specify second break point: tt Specify OTRACK point: end Specify second break point: @ - 120,0 P2~---------------------+~~ P3 Hinh 3.17: Hop thoai Drafting Setting. P5 3.3.3. Che do AutoTrack Pi P4 Voi che d
40 ChU'dng3: Nh~p di~m va phU'dngthuc b~t di~m Slr dl;lng AutoCAD 2000 41 l' x] b). OBJECT SNAP TRACKING Su dung Object Snap Tracking dii do tim dau vet tir 1 diem danh dau, va d9C theo P folalTracking On(FlO) •.....• :-~~'~Tk;:: :'\~::': i~'&; 1 setlin~ (1'11 nut OSNAP len ON tren thanh Status bar(a day man hinh) . va Autotrack. Ma h(>ptho~i Options nhu sau: Specify next point or[Close/Undo]: C 1)- Pull-down menu: Tool> Options> HQp tho~i Options (hlnh 3.22) 2)- Go )~nh: . Options > HQP tho~i Options Cac Iva ch9n tren trang Drafting cua h(>pthol;liOption nhu sau: Relative Polar: 150 < 120d 1- Bang AutoSnap Setting: A \ \ Bang nay cl6 kiem tra cac yeu to lien quan den vi~c truy bat di~m. Polar: 150 < Od \ - Marker: rna/tat 0 hlnh ve ky hi~u(~,O,lJ) duqc xuat hi~n t~lidi~m can truy bat A------ A "------- ...... (hlnh 3.21 dn6'i day). B~n cling co th~ dung bien AUTOSNAP. a). b). c). - Magnet: rna/tat che d(>Magnet keo va giG'0 vuong truy bat. Hlnh 3.20 - Display Autosnap Tooltip: rna/tat SL! hien thi Tooltip 0 chfr mo ta doi tuqng dnqc truy bat (hlnh 3.23). Bl;lncling co th~ dung bien AUTOSNAP=2.