第三章(3)-(扫描、放样特征)

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1、Chapter3第三部分扫描特征、放样特征1LearningObjectivesChapter3创建扫描特征.创建放样特征高级建模工具Someoftheadvancedmodelingtoolswerediscussedinearlierchapters.Theremainingadvancedmodelingtoolsarediscussedinthischapter.创建扫描特征图A是用于扫描的草图.图B是扫描生成的特征.ChoosetheSweepbuttonfromtheFeaturesComman

2、dManagertoinvoketheSweepPropertyManager,asshowninFigureC.FigureCTheSweepPropertyManagerFigureASketchestocreateasweepfeatureFigureBSweepfeatureChapter3链接图D是没有相交的截面形状和路径。图E是扫描结果.FigureFshowsthesketchoftheprofileandtheclosedpath.FigureGshowstheresultingsweepf

3、eature.FigureDNon-intersectingsketchesofprofileandpathFigureEResultingSweepfeatureFigureGResultingSweepfeatureFigureFSketchoftheprofileandtheclosedpathChapter3链接链接扫描属性对话框中的可选项有:方向/扭曲控制选项SketchesforthesweepfeatureSweepfeaturewiththeKeepnormalconstantoptions

4、electedfromtheOrientation/TwistTypedrop-downlistSweepfeaturewiththeFollowPathoptionselectedfromtheOrientation/TwistTypedrop-downlistChapter3链接ShowPreviewMergeResults保持相切AdvancedSmoothingAlignwithEndFacesResultantsweepfeaturewiththeAlignwithendfacescheckbox

5、clearedSketchesforthesweepfeatureResultantsweepfeaturewiththeAlignwithendfacescheckboxselectedChapter3链接应用扭曲选项Whilecreatingasweepfeature,youcanalsoapplytwisttoitbychoosingtheTwistAlongPathoptionfromtheOrientation/twisttypedrop-downlist.TheDefinedbydrop-dow

6、nlistandtheTwistAnglespinnerisdisplayedbelowtheOrientation/twisttypedrop-downlist,asshowninFigureA.FigureATheOptionsrolloutChapter3Youcanalsoapplyatwisttothesweptfeaturekeepingitsendfaceparalleltotheprofileandtheentiretransitionnormaltothesweeppath.Toapply

7、thistypeoftwist,choosetheTwistAlongPathWithNormalConstantoptionfromtheOrientation/twisttypedrop-downlistandthensetthetwistparameters.SweptfeaturecreatedusingtheFollowPathoptionSweptfeatureafterapplyingtwistTwistappliedusingtheTwistAlongPathoptionTwistappli

8、edusingtheTwistAlongPathWithNormalConstantoption链接链接SweepwithGuideCurvesClickontheblackarrowontherightoftheGuideCurvesrollouttoopenthisrollout,seeFigureA.FigureATheGuideCurvesPropertyManagerSketchesfortheswee