Giáo trình autocad 3d chương 2

7UXQJ7qPowR7{R&17773+&0 *LzR7UQK$XWR&$''


%LrQ6R{Q9wFKQKVêDE\

o9pQ7ULX
7UDQJ
&KQJ,,
+WRYệFFSKQJSKSQKSLP
FKÔQK[F
,&FKảWRẫWURQJEQY$XWR&$'
7URQJEQYă$XWR&$'WắQWLKDLKWẵDVDX
:&6:RUOG&RRUGLQDWH6\VWHPOKWẵDPFãQKWURQJEQYă$XWR&$'Fẳ
WKơJẵLOKWẵDJF%LơXWầQJ,FRQFấD:&6QPJẳFWULSKảDGặLEQ
YăYFẳFKé:[XÊWKLQWURQJELơXWầQJQ\7XểYRWUQJWKL21KRF2))
FấDOQK8&6,FRQPELơXWầQJQ\Fẳ[XÊWKLQKD\NKQJ+WẵDQ\F
ãQKYNKQJWKơGãFKFKX\ơQ
8&68VHU&RRUGLQDWH6\VWHPOKWRPQJLGẩQJWềãQKQJKàDKWẵD
Q\FẳWKơWYãWUảEÊWNểYWẩ\YRLơPQKQ9SRLQWELơXWầQJFấDFKèQJ
VăKLQOQNKFQKDX+QKYă6OầQJ8&6WURQJPWEQYăONKQJJLặLKQ
PWSKQJ;<WURQJFFKWẵDOPWSKQJYă:RUNLQJSODQH3KQJFKLôX
FấDOặL*ULGEặFQK\FRQWU6QDS WKD\LWKHRFFWUF ;<WURQJPW
SKQJ;<FấDKWẵDKLQKQK
,,0ẫWVẩOảQKYWDẫ
/ảQK8&6,&21
/QKQ\LôXNKLơQVềKLơQWKãFấDELơXWầQJWẵD1đXELơXWầQJWUẩQJYặL
JFWẵDWLLơPWKWUQELơXWầQJop.KLTXDQVWKQKFKLđXSKLFQKK
WẵDQ\VăWKD\LWẩ\WKXFYRJẳFQKQ
&RPPDQGXVFLFRQ
>212))$OO1RRULJLQ2ULJLQ@21!
x &FODFKQ

212)) 0KRFWWELơXWầQJKWẵDWUQPQKQKYNKXQJQKQ
$OO 7KơKLQELơXWầQJWẵDWUQPẵLNKXQJQKQPQKQK
1RRULJLQ %LơXWầQJWẵDFK[XÊWKLQWLJẳFWULGặLPQKQK
2ULJLQ %LơXWầQJOXQOXQGLFKX\ơQWKHRJFWẵDFấD8&6
7UXQJ7qPowR7{R&17773+&0 *LzR7UQK$XWR&$''


%LrQ6R{Q9wFKQKVêDE\

o9pQ7ULX
7UDQJ
/ảQK8&67RKảWRẫPL
&RPPDQGXFV
>1HZ0RYHRUWKR*UDSKLF3UHY5HVWRUH6DYH'HO$SSO\":RUOG@:RUOG!
&FODFKQ
1HZ 7RKWẵDPặL
0RYH 'LFKX\ơQJFWẵDđQPWLơPPặL
2UWKR*UDSKLF /ềDFKẵQPWVLơPQKQ
3UHY 7UYôKWẵDWUặFẳ
5HVWRUH /LWNFFKWẵDầFJKLELOềDFKẵQ6DYH
6DYH *KLKWẵDKLQKQKYặLPWWQQKÔSWẻEQSKảP
'HO ;ẳDKWẵDầFJKL
:RUOG +WẵDFKXĂQ
ệ 7KQJWKQJWDFKẵQ1HZơWRPặLKWRơGưGQJWKDRWFNKLFKẵQ1HZ
WK[XÊWKLQFFVềOềDFKẵQVDX
6SHFLI\RULJLQRIQHZ8&6RU>=$[LVSRLQW2%MHFW)DFH9LHZ;<=@!
/XíKDLVODFKQVDX
=D[LV &KẵQKặQJ=FKRPKQK&KẵQJẳFWẵDYKặQJ=
SRLQW &KẵQOLKWUFWẵD&KẵQJẳFWẵDSKQJWUF;Y<

,,,&FSKQJWKỉFWUX\EWLPẩLYLẩLWẻQJ'
LYặLFFFQKFấDPKQKNKXQJG\WDWUX\EWầFFFLơPFấDFFL
WầQJ/LQH&LUFOH3OLQHQKFFLWầQJ'
LYặLFFPW6XUIDFHVOWÔSKầSFFPWKRFFQKGRẳWDFKWUX\EW
ầFFFLơPLYặLFQKWRPWQK(QG,QW0LG
&FLWầQJ6ROLGVWUQJWKL:LUHIUDPHWDWUX\EWầFFFLơPFấDFF
FQKWKQJKRFQJWUáQWRGQJNKXQJG\FKR6ROLGV