lesson-1-GC-lesson 1-getting started

《lesson-1-GC-lesson 1-getting started》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、GenerativeComponents101Lesson1:GettingStartedYikes,wheredoIstart?LetsstartbycreatingadrawingusingtheseedGC.dgntouseeverytimeyouuseGC.WhenyouopenthedrawingtheGCdialogboxwillappearandnowindowswillbeopenonyourscreen.LetsstartwithanewScriptFile.GotoFile>NewScriptFileorusetheNewScri

2、ptFiletool.TheCreatingnewscriptfiledialogtellsusthatallfeatureswillbedeletedfromthecurrentgraph.Thisisok!Don’tworryabouttickinganyextraboxesatthisstage.Clickok.Glossary:Script.Ascriptistypicalofprogrammingtools.Ascriptisexecuted“onetime”andpopulatesamodelwithelementsorcomponent

3、s.Tochangetheresultorcreateanewfile,allthegeneratedelementsorcomponentshavetobedeleted(hencethedialogatleft)andthescriptisre-runwithdifferentinputparameters.YournewGCdialogboxwillchangeslightlyandnowincludetheScriptPlayerBar,ScriptEditortoolandTabs.Twowindowsalsoopen–aDefault-t

4、opviewandaSymbolic-topview.Thesymbolicviewwillshowourdrawingpathinasymbolicgraph.YouwillseeintheSymbolicviewtheCoordinateSystem/BaseCSsymbol,andintheotherviewitsGCgraphic.Glossary:CoordinateSystem.Thecoordinatesystemcontrolsthedirectionofthex,yandzcoordinates.Whenyoustartanewsc

5、riptyouareautomaticallyassignedacoordinatesystemcalledBaseCSanditsits“AtModelOrigin”.Rotateyourdefaultviewandyouwillseeitmoreclearly.TheredlineisX,thegreenYandthecyanisZ.Theactiveplaneisdefinedbytheyellowsquare.TobeginwithitsitsontheXYplane.YoucanchangetheplanetotheYZplaneorXZp

6、laneintheGCdialog.ChangetheplaneintheGCdialogandwatchtheyellowsquarerotatetotheassignedplane.Ok,I’mreadytodrawaline!Firstweneedtoplacesomepointsthatdefinetheline.InGCwealwaysstoretherelationshipbetweenthepointsandthelineandalwaysrecomputedthelinefromthecurrentvalueofthepoints.F

7、indthePointtoolandplacetwopointsinspace.Anywhere.YouwillnoticeyourSymbolicdiagramhasrecordedyourmovesandhasdrawntwopointsymbols.Nowwecancreatethelineor“Feature”.Glossary:Feature.Afeatureisthenameusedtodescribedifferentgeometricconstructions.Thesecanbegeneralsuchaslines,arc,curv

8、esorsurfacesandsolids.Inturnwhatyoubuildcanformthebasi