CAD ? ? ? ?

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????????????????? ?????
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?1? CAD????
1.1 CAD????????? 1.2 CAD??????????
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1.1 CAD????????? 1.1.1 ???????(CAD)???
CAD???????????????????????????????????????????????
???????????????????????????????????????,??????????
??????????????? ????,CAD?????????????????
?????
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CAD??????? (1)??????
(2)?????? (3)???????
CAD????????? (1)????????????
(2)?????????????? (3)??????????
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1.1.2 CAD??????? CAD?????????????????????
??,???????????????????? CAD???????????????????????
????????? ?????????????,???????????????,??
???????????????????????????CAD???CAD??????????????
???????????
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???????????777??????????????????????
??????????????CAD?????????CAD??
????????????????????,??????????????????
???????????CAD???CAD?? ???????
??????????????? ???????????????????????

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????????CAD????2000?????????2000?,??????
?????????????????????CAD??,??????(??????????),??
??????,????CAD??,?????CAD????????????????,??????CA
D??? ?2000?,?????????CAD????????????70?
???????CAD????????????100?
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CAD??????????????????? (1) ???????CAD????????????
????????????????,??????????????? (2)???????CAD???,
??????????1/3??,?????????????? (3)????????CAD?????
?????????,????????????,???6??????????,???????? (4)
??????????CAD??,??????????,???????,?95?????????,?
??20?????????,???????????10??
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1.1.3 CAD????????
???????http//rhino3d.com/gallery/id/?????
??,???CAD?? ???????????
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CAD For Products
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CAD In Architecture
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Simulation/Trainning
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Advertisement
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Entertainment
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Entertainment
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Visualization

• Study on how to transfer the scientific data set
  into
• visible images, to help the people to
  understand their
• meaning easily.

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Visualization
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Virtual Reality
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Wireframe Vs. Solid Models - Illustration
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Modelling with Curved Surfaces
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Wireframe Vs. Solid Models - Illustration
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Distributed Architecture VR System (Supported
by National Hi-tech 863 Program)

• VR is introduced in design procedure
• The effects of model, illumination and sound can
  be experienced in the virtual world.
• CSCW team work is supported.

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Image based Modeling and Rendering
1
2
3
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Special Effects of Ink-Wash Drawing
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1.1.4 CAD?????? CAD????????????????????
?????????????? (1)???????(20??5060??)
?????? 1950 MIT ??????????????
  1958 Calcomp ?????? 20??50???
SAGE??????
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(2) ????????????( 20??60??) 1962,Ivan
Sutherland ????Sketchpad????????
????????????,????? ?????????,?Coons??
? (3)??????( 20??70??) ?????????,??????????????
?????????????CAD??? ????????????
?????CAD????????????????
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(4)??????( 20??80??) ???????????????,?????
??? ????UNIX?????SUN???? ????????
? (5)???????( 20??90??)
????PC????????CAD??? CAD??????CGI?GKS?G
KS-3D?PHIGS?OpenGL?IGES?STEP?
???CAD??? ??? ?
??????????????????
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1.1.5   CAD??????? ???????,??CAD??????????
20??60??,CAD???????????????????????
20??70??,CAD?????????????????????????,????CATIA?
20??80??,CAD?????????????????????, ????I-DEAS?
20??90??,CAD??????????PTC?Pro/Engineer????????????
?SDRC?I-DEAS???????????,???????????????
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1.2 CAD??????????
???CAD??? CAD????????????,????????????,???????????
??????????????? CAD????????????? ?????????????
?? CAD?????????????????????????????(????)?
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1.2.1 CAD??????? 1. CAD??????????????????
CAD??????...
????
CAD????AutoCAD,Solidworks,Pro/E...
????
?????Oracle,Sybase,Forpro
????TCP/IP,SPX/IPX
????
????Windows 3.x, Windows95/98/NT,UNIX
??????,???,???,???...
????
CAD???????
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2.?????? (1)??????????
????????????????????? ?
(2)?????????? ?????CAD????,??
?????????(??????????)? 2D?3D???????
???????? ??????? ?????????
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3.CAD????????
CAD ????
??????
?????
CAD ????
CAD ??
???????
?????
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(1)???? ?????????????????????????????????
????Windows 95/98? UNIX?Windows NT??
??????Visual C/C? Visual Basic?AutoLisp?? (2)??
?? ????CAD/CAM???????????????
???????Foxpro/ORACLE/INFORMIX/Sybase??
???????ANSYS/NASTRAN/ADAMS??
????????????????????????
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(3)???? ??????????????????????,???????????????
??????????????CAD???????????
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??CAD?? ?????????CAD??? Autodesk???
AutoCAD?MDT, Solidworks??? Solidworks,
??CV??? CADDS???????PD(Personal Designer)
MicroStation??,Micro-CADAM??,CADKEY??,SolidEdge???
?
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?????CAD/CAM????? ??SDRC?????I-DEAS(Integra
ted Engineering Analysis Software),
IBM?????CATIA(Computer-Graphics Aided
Three-Dimensional Interactive Applications), ??Mat
ra?? EUCLID??, ??EDS?? UG II (UNIGRAPHICS
II)??, ??PTC?? Pro/Engineer?? ?
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1.2.2 CAD????? ??CAD?????????????????????
??????,CAD????????CAD????????CAD?????CAD??????????
CAD??? CAD????????????,?????????????????
?????????????????
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(1) ??????? ??????????????????????????????????
??????????????????????????????,??????????????????
?????????????? SUN ? SGI? HP? DEC?
IBM???????????????????,??????????CAD??????????
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(2)??CAD?? ???????????????
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??CAD????
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(3)????CAD?? ????????????,????????????????
???????????????
Server
??????
?????
TCP/IP
???
...
Client
??
CAD????
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1.2.3 ???????????
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CAD ??
???????
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?????
CAD????
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1. ???????
????????,????????????????????????CPU?????????????
?????????????????????????,??????????????????????
????????,?????????? ??????????????????????????????
???????????????????
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2. ???????
???????????????????????????,???????? (1)
???? ????????????????? ??
????????????????????? ???
????????????????,???????????????????
?????????? ????????? ?????????
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(2) ???? ????????????6???,???(locator)???(stro
ke)???(valuator)???(choice)???(pick)???(string),??
??6??????
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??????,????????????,?????????????????????
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3. ?????????
??????????????????????????????,???????????????
??????????????????????????????????????????????????
??????? ????? 1)???(Printer)
???????????,???????????????????????????
2)???(Plotter) ???????????????,???????????
????????????????????????????
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??1
1-1 ????????????????????? 1-2
CAD????????????? 1-3 ??????????????????????
?????CAD??? 1-4 CAD????????????????????