picking)and
parametricinteractionis
XML(ExtensibleMarkupLanguage),
SOon
parametricmodelingforsectionsteel,steelplate,boltand
precision
isbased
operation
on
facets,SOhighvisualization
3-dimensionsolidmodeling,interactive3-dimension
and
3-dmenstionviewareintegrated.
Indetail,steelstructurejoint’Svirtualassemblyisdividedinto2phases:earlierphaseofvirtual
assembly
based
andlaterphaseofvirtual
assembly.Respectivetechnique
isadoptedin
differentphases:intheearlierphaseofvirtual
one
by
one
on
facets
to
formthe
assembly,thepartsareinteractivelyassembledassemblieswhichareinconllnonuseforthefinal
and
reconstructiontechniqueisadopted
use
一,
products;inthelaterphaseofvirtual
assembly,reuse
andthefinished
assemblies
intheearlierphasewillbe
againto
implementassemblies’
includes2kindsof
j。
,
automaticassembly.
Reuseisthefoundationofautomatic
assembly’Simplementation,and
form:instantcopy,importandexport;reconstruction
istheimportantpointofautomatic
assembly’Simplementation,and
positionaccording
relatingfacets.
to
itsessentialprocessist
oautomaticallymodifytheprimary
thereferringsteelstmcture
jointand
bytheaidofthepicking
point
and
Moreover,three
views
and