- Block: ditm CP trd thanh vi tn mm cua Block, ~n Enter tiep thl b~n c6 tM thay d6i duqt:
II." II Cance l
Hinh 5-.1: 110p Iho:,11 "Choo,c Hutch 0plions",
Iho.~i "I-Ialeh Oplion" de chQIl kieu g<,lch sQC (Style) a 0 "Hatching Style" n~m a ben phai.
Co 3 ki~u gi)ch:
- N (Normal): day la kieu ma sau khi chQIl nhit!u duong bac thl m~11 cill dl1<;'C 10 tu duong ngoai cung (s6Ie) toi duOnS bilo kc tiep, sau d6 khtlng g',lch cho 16i dtrons bao tier theo h.li
S<,lch vv .. , (hlnh 5-4a),
·0 (Outer): voi kieu nay. m~H cal chi du(1C t6 IU dl10ng ngolli dillS loi duong Irong k6 n6 ma IhOi (hlnh 5-4b).
- I (Ignore): m~1I cJ.1 se du(1C Itl tu dUOng bao ngoai cung va phil 10~1Il bO ben lrong. bO qua cac dlCOng bao mim Irong da du(1C chon (hinh 5-4c).
0). Normal b).O ... ler • c).lgnore
Hinh 5-4
+ () exploded Hatch: (phan ra kh6i gl,lch sQc)
Tilt d cac duang g~ch sQc duqc xem nhu mqt kh6i (Block). Khi bi.~n mu6n kh6i do Ira
thanh dc dtrang rieng bi¢t, b':lfl danh dau va~ 6 vuong nho dau dong "Exploded Hatch". D~ la.m diell do, b~n cling co the dung I¢nh EXPLODE sau khi dii g~ch roi.
+ () copy existing Hatch: sao cMp mall d5. g~ch.
Sau khi b~n da chQn xong mau (Pattern), kieu (Style) g~ch sQc Irong hqp thm.li "Halch Option", b<.l11 an OK dong hQp tho~i nay, tro ve hQp Iho~i chfnh "Boundary Hatch".
Bay gia b~n dn chon liep mien ke sQc IU dong "Define Hatch Area" bhng hai c;:"ich
nhL! sall:
b. 0 Pick Point
B'.lll Click chuqt vao 6 nay, ACAD nhk b~1l chQIl I diem trong vllllg kin dn g'.lch: Select intcral point: <eho I di6m a ben (rong mien din g<.tch>
ACAD se tlf dQng dlfng I Polyline kin bao quanh mien nay va g<;lch (hlnh 5-5).
Cit.:. y: Sau khi b4n chQIl I diC:m trollg miell gf.ICh, ACAD si! di'! 11m (\wJng bao giln no nhat M dl!ng lhimh dubng bao Polyline eho miCn g,!cli. Neu di6m d6 b ngoai dlIung I!m th<"iy. ACAD s;: Ihollg bilO ri1ng: Poin1 is
outside of boundary (diem chc,m b Ilgoai dlIong bao).
x
Pick oint
Chon mi~n g'.lch
Hi.nh 5-5 Hinh 5-6 chi ra ding diem chQn PI a trong dtrang Iron, nhlmg l~i gan dU'ang bao hlnh vuong han, eha nen ACAD se thong bao rang diem a ngoai duong bao. B~n hay chQIl 11;li.
B<.tn cung co the chQn Pick point a mifn trong cung trU'ac roi chQn Pick Point ra mi6n ngoai sau. VI d~ tren
hlllh 5-6, dau tien b<;ln co the chQn Po Irong hlnh vuong, roi P2 a ngoai hlnh vuong.
c. Select object
Neu click phfm chu¢t vao 6 nay d~ ChQll cac duang
P~Gl
XP2~
2) llinh 5-6 llinh 5-6
baa cua mi~n g<;lch sQc, b<;tJl dung dc each chQn d6i tuqng de tra 10i dong nhi1c "Select object:" .
d. View sellections
Nhan ph{m chu('lt vao 0 nay d~ xem I~i cac duong bao da chQn a tren. e. Preview Hatch
ChQn 0 nay d~ xem tru'Oc vung g<;lch dft duqc nhu y chua.
r. Advanced Options ... : cac chue nang nang cao. g. Apply
B<;ln a:n vao () nay, ACAD se ap d~t ta:t cae h!a chQn g~ch SQC da d~t a tren vao ban ve va k€t thue l~nh BHATCH.
h. Anolher
B¥t click vao 0 nay, h"p tho~i chinh "Boundary Hatch" I~i hi~n ra de: b,.m tien hanh g~ch s(Jc mj~n khac .
• Anh huimg cua cac dutmg g<;lch sQc tm dong Text, Attribute, Solide
Khi chQn ca .. c duemg bao mien g'.lch, b'.ln chQn d. cac d6i tuqng nay, thi cac dut'mg g~ch SQC se tI! d"ng ngat di khi g~p chung; trit khi b~n ch(Jn ki~u g~ch la "l"(Ignore).
Vi df:.l: G'.lch m~t cat cho h'inh Ve tren hinh 5-7 a tren, sao cho cac duemg g'.lch kh{)ng de len chi} "Ban may". B'.ln hay tam nhu sau:
Command: bhatch
- Trong h('lp tho~i "Boundary Hatch" hay chi vao "Hatch Option" va chQn Pattern la ZIGZAG, chQn Scale = 24. Angle = 0 va an OK.
- Trong h¢p tho'.li "Boundary Hatch", hay chi vao () "Select
MInh 5-7
object", sau do chI vao dong chu "BAN MAy" va a:n Enter. Tra liili h('lp thoiili "Boundary Hatch" d~ chQn mien g'.lch bang "Pick point", cu6i cling la "Apply". K€t qua mi~n S<;lch nhu
hinh 5-7 a tren. -
52
5.1.2. HATCH
'" Okh gQi l¢nh HATCH tu Menu:
~---~~----~ Screen Menll > ORA W·> Hatch Menu Bar > DRAW > Hatch
•• C'. _ - , _ • GO l~nh tit bail phlm: • GO l~nh tit bail phlm:
Command: ' hatch.
Pattern(? or namelUlStyle)< ••. >: B¥t tre! lai dong rmik do:
+?: ACAD li¢t ke ra danh sach dc ten Pattern co trong file acad.pat
+ Go ten mao g~ch SQC vao: ACAD se hoi ti€p: Scale for pattern< ... >: <cho ty l¢>
Angle for pattern< ... >: <cho goc nghicng dut'mg g'.lch>
Angle for cross hatch line< ... >: <cho gOc nghieng>
Spacing between Line< ... >: <cho khming each cac duemg g~ch>
Double hatch area?< ... >: <go Y di g~ch cheo 2 chi6u nghieng, N - 1 chitu>
+ S: de chon kieu g~eh (Style: N. I. 0).
B~n cung co th~ xac dinh kiiu g~ch b&ng each them N, I hay 0 vao sau ten mau g~ch
s,?c co da'u ph.iy ngan each nhu vi d\,l sau day: '
Command: hatch
Pattern\? or name/U/Style)< ... >: BRICK. 0 5.2. GHI KICH THUOC (DIM)
5.2.1. Caeh ghi kich thuoe
Nhu ta biet kich thu6c g6m 3 thanh pMn nhu sau: (hlnh 5-8)