AutoCad - Auto Design Softwares part 12 docx

+ Dap m~c d,nh: cho diem goc thu nhAt ella viewport, sau do cho diem thu 2 Iii dinh d6i di~n ella viewport.. L~NH RULESURF Surface de tao miit kJ bdng each cho dU'mtg thfing ·dU'mtg sinh

Dar de Iva ch<;m:

+ $: cat m!)t dinh d<;lng viewport v6i ten bi.1ll d(lt d~ si'r d~lllg v6 sau

+ R: dlra ra Ill!)t viewport cia luu

+ D: xoa di viewport dang 1m\,

+ S: t<.t0 mQt viewport don

+ ?: hi~n danh sach cac viewport dang hm~t d(>ng va V · ! trf eLla chung

+ 2,3,4: t~o ra 2 ,3 hay 4 viewports k~ nhau lien tiep

Chli y: Khi c6 nhieu vit:.w(XJns Iren man hlnh, b'.lIl chi c6th':: lam vi¢c lrcn lUng viewpon mit Ih6i I nnh 9-13 lit man hlnh duqc 140 vai ~ viewporls ke nhau btlllg l¢nh VPORT ,

Ll;.NH MVIEW

L¢nh nay eOng dung de t<.lo cae khung nhln d(>og(Floating viewports), de: b~t/t~t

cae viewports, Ih~re hi~n vi¢e giau cae duemg khl!at tren viewport khi in tren kh6ng ginn

't,'

-gl<ly ve

Cae viewports t<,to ra bang l¢nh nay eo d~e diem: ACAD eoi dc viewports n~ly nhu la cac nguyen the: ve ella n6, do d6 b"m co the: I,-~o vii hi¢u ehinh cae vicwp0rls a V! trf tLIY y,

cac vicwports co th~ eham Jen nhau Ngtrai la IJurong dtlng J¢nh MVJEW t<,IO ciie khllng nhln d(>ng de: t~o hlnh chieu dung, hlnh ehicu bang, hlnh chieu c1.ll1h va hinh chieu 3D ella v~t the:; Sal! do dung J~nh ZOOM v6'i Iy J¢ bt.ng nhau d~ co Ueh thu6'c wO'ng (rng gifra ba

hinh chieu; tiep t~e dLl1lg I¢nh MVSETUP vai I~ra chqn Align chi hi~u chrnh vi trf cac hinh

chieu dllllg duang gi6ng vai nhau CluJng dl(q'e in ra nhu HI Tl1(>1 nhom Irong kh6ng gian gia"y

ve (Pspace),

~nh MVIEW chi th~c hi?n khi dill biEn TlLEMOD I OPP(O)

* each gQi l¢nh MVIEW tir menu:

0 - - - ,

Menu bar> Mview

Screen menu> Mview

, Go l¢nh tu b~m phfm:

Command: mview

ON/OFF/Ridepiot!Fitl2/3/4IRestore/<First point>:

Dap cae l",a ch<;m:

+ ON/OFF: b~t/t:il viewport

+ H: khi in se bi> cae duang khu5t tren cae viewport.s bl:.lll chQn

+ F: tl:.lO mQt viewport vi'ra khir man hloh

+ 2/3/4: tl:.lo 2, 3 hay 4 viewports tren man hloh

+ R: dua m¢t viewport da hru fa man h'inh

+ Dap m~c d,nh: cho diem goc thu nhAt ella viewport, sau do cho diem thu 2 Iii dinh d6i

di~n ella viewport

Hinh 9-14 1a 3 viewport.s tuy '9 duqc tl:.lO fa bi1i l¢nh MVIEW

9.3 Mt) T PRANG co s6 (CP) TRONG VE 3D

M~t ph~ng co SfJ (Base plane) hay m~t ph.ing kien tl:.lo (Construction Plane) HI cae m~t ph~ng dung lam co sa xac d!nh cae diem ella ~t tM' (day tf1;l, day n6n, ml)t m~t ben ella kh6i hl}p m¢t ll1~t ph~ng nghieng ella v~t the vv ) M~t philng co sa (CP) thuemg dung de X3.c d~nh ml}.t tQa d<,? XY ella hi} tQa ~ nguCri dung UCS khi nh~p cac diem trong 3D M6i khi thl!C hi¢n m~t l~nh ve 3D rna can nh~p vao 1- diem, se xu""t hi¢n dong nhac nhu vi dl,l sau:

Command: solcone (ve kh6i hlnh non)

Baseplane/Ellipical/<Center poin><O,O,O>: B <de Iflp m~t phllng co sa day non>

Baseplane by Entity/ Last! Zaxis/ View/ XY/YZ/ZX/<3 points>:

Dap cac ll!a ch(;m tren:

+ E: thiet l~p m~t ph.ing co sa trimg vui m~t philng cung tron, phan do~ polyline da ro

+ L: tn1 l~i m~t phllng ·co sil ngay tHroc do

-+ Z: dinh m~t phllng co sa m6'i song song v6i m~t cu, nhung nling len de.') cao z

+ V: d~t m~t ph~ng co sa vuOng g6c v6'i tia nhln, din nh*p diem g6c

+ XY: d~t m~t philng co sa /I v(ri m~t phang XY cuah~ UCS

+ YZ: d~l m~t phiing ca sa //vo; m~t ph~ng YZ ciiah~ ues

+ ZX: d~l m~l phling ca sa // vo; m~l plr.lng ZX cila h~ Ues

+ Dap m~c dinh: xac dinh m~t phAng co-~a b~ng 3 d:i~m:

1 st point on plane: cho diem thu nn!{t 13 g6c

3rd point on pliJne: cho diem thu 3 d.c dinh hu6ng duang t~c y

Chu y: B<:ln nen dung O~nap Mode." de cho CDC diem cho nhanh vA chinh xac

CHUONG 10

Tie-t nay gi6i thi¢u each vi! trong 3D ella cae polyline, m~t khung (wirefram), m~t

(surfaces), m~t ke

LI;;NH3DPOLY

Vnh nay vi! polyline 3D g6m ca.c phan do'.lo thAng

* each g<;>i l¢nh tit menu:

r M-en-u-b-a-r ->-D-r-a-w->-P-o-Iy-I-ine > 3D ] Screen menu> Surfaces> 3D poly

* Go l~nh til ban phfm:

Command: 3dpoly

From point:

Vi¢:c thl!c hi¢:n tiep thea lUang ti! nh112Dpolyline

Vi d~: (hinh 10·1)

Command: 3dpoly

From point: 7, 51, 0 <cho PI,

dan vi Iamm>

Oose/Undo/<Endpoint of line>:

67.131,50 <1'2>

Oose/Undo/<Endpoint of line>:

97,151,20 ~ <1'3>

Oose/Undo/<Endpoint of line>:

150,44,0 <1'4>

Oose/Undo/<Endpoint of line>:

87,-9,-50 <1'5>

Oose/Undo/<Endpoint of line>:

C .J

Ghi eM:

Po

mnh 10-1

- Da tuycn 3D cung co the hi¢u chinh gi6ng nhU da tuye'n 20 boi l¢nh PEDIT

- ACAD.rl3/rJ4 cothern l¢nh SPLINE d6 ve <luemg cong xOlln 3D

LENH3DFACE

r.¢nh nay t~o ra m¢t m~t bao g6m cac mtf.t pluing ke' nhau 3 chitu, m6i dinh c6 t<;>a d¢ x,Y,z kM.c nhall

VI d~: (hinh 10-2)

Command: 3dface

First point: 80,180,0

Second point: 200,250,40

Third paint: 250,100,80

Fourth point: I .J

130,-20,-50

<di~m-Pl, dan v~ 180 mm>

<P2>

<P3>

(Invisible-ve qnh ti€p thea khOng tha'y)

<P4>

Third point:

?ourth point:

Third point:

80,180,0 < P5=PI>

I J

250,100,80 < P6 = P3>

.J

Chli thich: 'Bi~n SPLFRAME di).t Iii I, cae

c:.mh eua 3DFACE deu hien thj ra di b:.m co thi SO!;III

thao nhlt m~t 3DFACE e6 cae e~nh deu thay

L1~.NH 3DMESH

L¢nh nay t'.lO fa mt!t lum kh6ng gian

g6m M hang va N ct')t Chn y r~ng cae dinh

co the cho tQa dt') z tuy y

•

Vi du: (hlnh 10-3)

Command: 3dmesh

Mesh M size: 4

Mesh N size: 3

Vertex(O,O): 80,70,80 <dan vi mm>

Vertex(O, I): 80,110,85

Vertex(0,2): 80, 160,80

Vertex(l,O): 120, 70, 85

Vertex (I , I): 120, 110,80

Vertex(I,2): 120, 160,70

Vertex(2,0): 180, 70, 80

Vertex(2,1): 180,lfo,.85

Vertex(2,2): 180, 160,90

Vertex(3,0): 240, 70, 90

Vertex(3,1): 240, llO, 85

Vertex(3,2): 240, 160,75

Vertex(3,3): J

L1;NH PFACE

P2r _ _

_ _ ~P3-P6

3,2)

(3,0)

(0,0)

Hloh 10-3

L¢nh PFACE dung de t~o cac m{lng lum cua cac da gwc 3 chieu (3D polygon mesh) B~n phai xac d!nh m6i dinh va m6i m~t cua cac da giac

Vi d~: (hlnh 10-4)

Command: pface

Vertex I: 90,70,0 <dinh I>

Vertex2: 70,140,50

Vertex3: 170,50,100

Vertex4: 220,170,70

Vertex5: J

Facel, Vertex1: 1

Face I, Vertex2: 2

Face I, Vertex3: 3

Facel, Vertex4: 4

Facel, Vertex5: J

Face2, Vertex 1: 1

Face2, Vertex2: 3

Face2, Vertex3: .J

Face3, Vertex 1: 2

P4

PO

H'ioh 10.4

Face3 Vertex2: 4

Face3 Vertex3: 1

Face3 Vertex4: .J

Ghi chu: Cac m~t IWi da giac 3D mesh, pface co thi hi¢u chlnh boi I¢nh PEOn:

L~NH TAB SURF

Tabsurf (Tabulated Surface) la l¢nh t'.l-o mij.t tr~ vai mN dU'Ong chuAn va m¢t dU'Ong th&ng vec to dinh hU'ang dU'Ong sinh t~

Command: tabsurf

Select path curve: <B<.lfl chQn dU'Cmg chuftn C>

Select direction vector: <aWn dU'Cmg thfing lam vec to hU'Cmg dU'Ong sinh s>

CM y:

+ Vec to d,nh hUOng e6 g6c ia mut

ella do~n thang g.1n diem b~n eh9n

+ DuOng thang vec to d,nh huang cho

trong 3D

+ Bl,ln c6 thi d6i m~t d¢ cac duang

sinh bang bien SURFTABl, SURFTAB2

Hinh 10-5 la VI du ve cac mat

trl! voi cae dU'Cmg chua~ c va hU'an·g

dU'Cmg sinh s boi l¢nh TABSURF

trong 3D

L~NH RULESURF

Surface) de tao miit kJ bdng each

cho dU'mtg thfing ·(dU'mtg sinh) di Hinh 10-5 chuyen trtn 2 dU'Ong khac trong khOng gian (gQi la dU'Ong chuan) Hai dU'Ong chuan co the

la dU'Cmg cong dU'Cmg thing, co the ph~ng hay ghenh

Command:

Select first defining curve:

Select second defining curve:

ChUy:

+ Ca 2 duO'ng chuan phai ctmg la dong

kIn, hortc cung ho M¢t trong 2 dUOng chuan

c6 the 13 1 di~m

+ Thay d6i m~t d¢ c~k dUang sinh bang

cae bi€n nhu trong l¢nh TABSURF

Hinh 10-61a VI du ve cac mat ke

bilng l~nh RULESURF

L~NH REVSURF (Surface of

Revolution)

L¢nh nay de t~o m{lt tron xoay

dung mQt dll'Cmg lam dll'Ong sinh va

m¢t dU'Cmg tha.ng lam trl!c xoay

Command: revsurf

Select path curve: <chQn m¢t

dttOng lam dU'Cmg sinh>

rulesurf

<chQn dU'mtg chua.n c 1 >

<chQn dU'Cmg chmln c2>

Hinh 10-6

Select axis of revolution: <ch<;m tfl;1c xoay>

Sta.;t angle<O>: <cho gOc ban dlu lam g6c xoay> Included angle(+=CCW, -_CW)<Full circle>: <cho g6c,xoay>

mnh 10-71a VI dl,l t<,Lo cac m~t tron xoay boi I¢nh REV SURF

Hlnh 10-7'

Li;,NH EDGESURF (Edge defined surface)

~nh nay \<;10 m~t m~t luoi d\,fa tren C(1 so 4 q.nh ta 4 duemg ghep kin voi nhau

Command: edgesurf

SelQCt"edge 1: <chQn c~nh 1>

SeIec1 edge2:~ch<,ln qnh 2>

SeleCt edge3:' <chgn c'lIlh 3>

., Select edge4: <cht;>n qmh 4>

Xem vi d1,l trtn hinh 10-8,

eM thich: BI,IIl c6 thi! thay d6i

mfl,t d¢ \lrai cua m~t b~ng cac bi~n

SURFfABl, SURFfAB2

L~NHEI,EV

4nh ELEVchopMp b'lIl nlog,', ' " i

d~ cao z (Elev) ban 114Q 16nril!)t gill

tri v~ lam nhO len ffi\lt hi! d~y , , " , ,,' , ffmh 10-8 (Thickness) cho dc nguyen the b~n se v! sau do, M~ pbang XY co cao d~ lit 0, d6i nrgng

co be day 0 tuc lit khOng nhO len (ph/lOg), d6i nrgng nhO'len ttil: Iii co hi! day duong va ngugc

Command: etev

New current elevation< >: <b;:m cho cao d~ ban d1.u m(tt gia tr! mob New curent thickness< >: <cho be day mcri nhO l~n>

HinhlO-91a VI dl;l cho d¢ cao ban diu va nAng bt day Itn t~o thanh cac m~t 3D tlr cac

nguy~n the 2D

Vi dl,l 1: Ve binh dvng sua nhuhlnh 10-10 HUCmg dan dtroi day siIdl,lng l~nh REVSURF, ELEV vit TIlICKNESS,

1- GQi ban ve khOi thuy ra (vi d~ b~n da: covm ten

"A4.dwg"), t~o cac lap 2D, 3D, va cho di~m nhin

vpoint (1,·1,1)

2· Xlic dinh 1 m~t phAng kinh tuyen cua binh sila

- Command: line

From point: 0,0 (diem A)

To point: @0,100 (diem B, hlnh 1O·l\)

- Nang Thickneess dllbng AB len 150:

Command: change

Select objects: <chi vito AB>

Properties/<Change point>: P

Change what property (Color • Thicknees)? T

New thicknees< >: 150

3· Chuyin UCS tell vi tri m~t phang (XY) trung

vell m~t phang kinh tuyen do (hlnh 1O·l\)

4· Ve dllimg kinh tuyen (Path Curve) vii tay dim

-Hi~n ml.it phclng (XY) song song voi man hlnh de ve

dllCmg kinh tuyen (Path curve) va tnJ.c xoay (t) a day

dung l~nh PLAN/current ucs

- Dlla lOp 2D ra hi¢n thai d~t bien FILLMODE=O

(kh6ng to den be r(lng pline) dung l~nh PLiNE voi be

r(lng width=3 de ve path curve (hlnh 10-12)

Vi! tay dm b~g I~nh PUNE vai width=6 (btl day

tay clim) Sau do dung l~nh CHANGE/ thickness=12 (btl

r(lng tay d.m)

mnb 10-10

Hinh 10-11

'

- Xac djnh s6 dui'mg khung luai: SURFfAB1=32,

SURFfAB2=12

- Command: revsurf

Select path curve: <chi vao Path curve>

Start angle< >: 0

Include angle<Full circle>: J

- Lam dong(Freeze) liip 2D; chon Vpoint(l,-I,l) va

b~n se co blnh sua nhu hlnhlO-lO

a tr~n

VI d~ 2: VO nha kh6ng mID nhu hlnh 10-13 duai

day Hu6ng dAn sir d~ng l~nh ve trong 2D, sau do dung

I¢nh nang dQ cao z de thilnh d6i tuqng 3D

1- Mil biin ve khiri thuy da cO, t~o ole liip 2D, 3D

HlohlO-J3

t

Hlnh 10-12

- Dull lap 2D r hi¢D thlli, ~tbitn ~Dl!=6 (kit6ng to den be rQng pline), dung l¢nb!'LINE vm be rQng width=4dl eve tui'mg, cQt;eOn cktaiiilAt ttU6r; eira chon be rQng

width=20 ve dQc chi~u ~ng em (hlnb 10-\4), '"

3- NAng d(> eao z ehuy~n bin ve 2D !banb ban ve 3D

- Nang d(l cao tulmg va c(lt len 100:

Command: elev

New current elevation< >: 0

New current thickness< >: 100

- Na.ng d~ cao cae til'm lat dla len 4:

Command: elev