lesson-3-GC - Lesson 3

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1、GenerativeComponents101Lesson3:CreatingaGenerativeComponentWhatisaGenerativeComponent?Glossary:GenerativeComponent.ToputitverysimplyaGenerativeComponentcanbecomparedtoacell–exceptaGChasalotmorepoweraswecanmakeonethatcontainsGlobalVariablesandweknowthatwhenyouchang

2、etheGlobalVariableallreferencestothatvariablewillchangealongwithit.WecreatedapyramidinthelastexercisesoletsusethistocreateanewFeature(AfeaturecanbeanythingfromasinglepointtoamorecomplexGenerativecomponent,whichwearecreating).GotoTools>GenerateFeatureType.Thedialog

3、boxGenerateNewFeatureTypeappears.1.FirstgiveyourGenerativeComponentaname.StartallCompanyfeatureswithCompany_nametohelpusidentifyusercreatedfeatures.WewillnameourpyramidCompany_Pryramid.2.ThenweneedtoDefineInputs.Yourinputsarewhatyouneedtodrawbeforeyoucanplaceyourn

4、ewfeature.Letsuseour3basepointsofthepyramid.ThismeansthatIneedtodraw3pointsbeforeIcanplacetheCompany_Pyramidintothedrawing.3.Ichosemy3basepointsfrommysymbolicdiagramandtheyturnedblue–alsotuningadashedblueweretheassociatedcomponents–myBaseCSandbyglobalvariable.When

5、partsturnadashedblueit’sGC’swayofsayingthatyouneedtoselectthemtoo!4.Clickok.YouwillnoticetheCreateNewFeaturedialogisnowfullofinputsandoutputs.Remember:Inputs

6、aximumoutputs!Wenowneedtolookatourinputsandoutputsindetail.Theinputsareinthetoppartofthedialogandtheoutputsinthelowerpart.5.IntheinputsplaceticksintheReplicatablecolumn.Glossary:Replication.LetssaywecreatedaGCthatcontainedalinedrawnbetweenastartpointandendpoint.Wh

7、enplacingthisnewfeatureitwouldrespondtoasinglestartpointandasingleendpoint,butifithad“inbuilt”replications,itcanactuallyrespondtoaseriesofstartpointsandaseriesofendpoints.TheresultingGenerativeComponentwouldendupbeingasetoflines.Thisisagoodfunctiontohave!Letsticka

8、llourinputstobeReplicatable.6.Nowletslookatouroutputs.Atickintheconstructioncolumnmeansthatyouwon’tseethatoutputwhenyouplaceyourGC(itsjustbehindthescene