II. CAC LENH THIET L~P BAN VE
1. VI m~t cilt bling I~nh Bhatch
.
Pull - down Menu Type in Toolbar
Dung l~nh Bhatch (Boundary Hatch) de ve m~t d.t vai ky hi~u v~t li~u trong vung ve m~t cat giai h~n bOi m¢t duong bien kfn.
Khi l~nh Bhatch duqe tht!e hi~o se xuat hi~n h¢p tho~i Boundary Hatch and Fill.
1.1. Trang Hatch
• Ch9n mau m¢it cat: (6 ehQn Type).
C6 the ehQo d<;log eho cae mau m~t cat: Predeji"ed, User-defined ho~e
Custom.
+ Predeji"ed: ChQo cae milu m~t cat e6 san trang file ACAD.PAT ella
AutoCAD
+Custom: ChQn mall duqe t~o bang file. PAT. Khi do nh~p ten file. PAT
vao 6 sO<;ln thao Custom Pattern.
+ User-defined: ChQn m<1u c6 d~ng cae do~n thAng song song (wang tt!
mall ANSI13l), rei ehQn khoiing each (Spacing) giua cae duong g;;teh va g6e nghieng (Angle) ella duong g~eheheo.
• Ch9n cac mau m¢it cat bang each ch(Jn dnh: (6 ehQn Pattern).
ChQn nut [... ] ngay ben phiii daoh saeh Pattern, lam xllat hi~n h¢p tho~i
Hatch Pattern Palette. Bang cae nut Next va Previous ta co the l~t trang de xem cae mao. Khi eh9n mall nao ta chi can keo can tro vao mau d6 va nhap vao nut OK.
• Can cac tinh che/t cho mau m¢it cat: (Pattern Properties).
C6 the gan cae tfnh chat cho mau m~t cat.
+ ISO Pen Width: ChQo cae mAo theo ISO thi eho phep ehQn ehieu r¢og
but khi in ban ve ra giay (tily thu¢e vao thiet b! in).
+Scale:Nh~p gia tri h~ s6ti l~ eho mau m~t dt dang ehQn. Gi6i h~n m~e d!nh ella h~ so ty l~ nay la 1.
+Angle:Dinh d¢ nghieng ella cae duong eat so v6i mau eh9n. Gia tI! m~c dinh to O.
+Spacing va Double:
ch9n Double Hatch se ve them ca.c duang ky hi¢u m~t calvu6ng goc (t'.lO cac duang g'.lch dan cheo nhau).
- Xde dinh vLlng ve mift edt.' (Boundary)
D~ xac dinh vung ve ky hi¢u m~t ca.t ta su dl:mg m¢t trang hai cach: Pick Point ho~c Select Objects, ho~c ket hgp hai cach tren.
+ Pick Point: Xac dinh m¢t duang bien kin bang cach ch9n m¢t di~m
nam trang vung ve m~t cat. Khi ch9n m¢t di~m trong duang bienkin thi t<;tm
thai AutoCAD t'.l0 m¢t duang bien kin la m¢t Pline ho~c chuy~n vung ve thanh mien (Region). Nen ch9n di~m gan v6i duemg bien cAn do tim. Dong nhac ph~:
Select internal point: (Ch9n m¢t di~m ben trang duong bien kin).
Select internal point: (Tiep we ch9n m¢t di~m ben trang duong bien kin
khae nib), ho~c nhan Enter d~ ket thuc vi~cchQn.
+Select Objects: Ch9n duang bien kin bang cach ch9n ca.e d6i tuqng bao
quanh t<;1.o nen duong bien. 1.2. Trang Advanced
-Island Detection Style: Cho phep chQn ki~u ve m~t cal.
- Object type: Cho phep ch9n d'.lng duong bien gifr l'.li co th~ la mien (Region) ho~cPolyline kin.
-Island Detection Method: Neu ch9n Flood thi cac island se la d6i tu<;mg
bien. ChQn Ray Casting cho phep do tim duong bien thea huang nguqc chieu kim d6ng h6 thea cae diem ta chi ra .
• Boundary Set: eho phep chQn duong bien cua vimg co m~t cAt duqe
nhanh han.
2. l~nh HATCH
Pull - down Menu Screen Menu TYpe in Toolbars --- --- - Hatch hoifc -H
L~nh Hatch dung dl! ve ky hi¢u v~t li¢u m~t cat kh6ng lam xuat hi¢n cae
l¢nh Hatch cae m~t cAt se kh6ng co quan h¢ t~p hqp (Nonassociative) va kh6ng sir d~ng dugc phuong phap do tim dUOng bien (Ray-casting method) bang each eh(;m di6m (Pick Point) d6 xae dinh.
3. Hi~u chinh m~t c~t (L~nhHatchedit)
Pull - down Menu Screen Menu Type in Toolbars
ModifyIObject>/Hachedit ... MODIFYlHachEdit Hatchedit hOQc Ha
L¢nh Hatchedit eho phep ta hi¢u ehinh cae m~tcat se co quan h¢ t~p hqp (associative) (tao biing l¢nh Bhateh).
Khi thl!e hi¢n l¢nh Hatchedit se xuAt hi¢n h¢p tho'.li Hatchedit tuong tl,l
h¢p tho'.liBoundary Hatch and Fill. Ta sua chuam~tcat theo cae nut eh9n eua h<)p tho'.li nay.