2009

Table Of Contents

1.2BALANCINGPERFORMANCEANDDESIGNCOMPLEXITY

ThedesigncomplexityofafamilycanaffectitsperformancewhenitisusedtocreateelementsinRevitprojects.

Thisisanimportantconsiderationwhencreatingfamiliesthatincludealotofgeometry,multipleparametric

relationships,and/oralargenumberoffamilytypes(sizes).Efficientgeometrycreation,judicioususeof

parametricconstraints,andcarefullyplanneddetailandvisibilitysettingscanreducetheperformanceimpacta

familywillhaveontheprojectsinwhichitisused.

Inthissection,youlearnto:

• Identifypossibleperformancegainsandimpedimentspriortofamilycreation

• Managedifferentperformancefactors,includingparametricrelationships,detaillevel,andvisibility

settings

• Createefficientfamilies

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DESIGNINTENTVS.PERFORMANCE

Themorecomplexanddetailedafamilyis,thelargeritsfilesizeandimpactonperformancewillbe.Before

creatingafamily,determinethefollowing:

• Thedesignintentofthefamily:Whataretherepresentationsthatthefamilymustcontain(schematic,

designdevelopment,constructiondocumentation,highqualityrendering),andhowdetailedmusteach

representationbe?



• Thetypeofprojectinwhichthefamilywillbeusedandhowfrequentlyitwillbeused:Willthefamily

createonly10elementsinasmallresidentialproject,orwillitbeusedtocreatehundredsofelementson

manyfloorsofalargecommercialbuildingmodel?



RMCSG—16 Version2.1

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