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主講人:趙慧、楊國星TianjinLightIndustryVocationalTechnicalCollege

ReadingDrawingsUsingtheShapeAnalysisMethod

PartILessonIntroductionPARTILessonIntroduction

PartIIConceptoftheShapeAnalysisMethodPARTIIConceptoftheShapeAnalysisMethodcompositesolidsTheshapeanalysismethodinvolvesimaginingthedecompositionofacompositebodyintoseveralbasicbodies.Byunderstandingtheirshapesandrelativepositions,aswellasanalyzingtheirsurfaceconnectionrelationshipsandprojectioncharacteristics,thismethodallowsonetointerprettheanalysisofviews.ShapeAnalysisMethodformedprimarilybystackingApplicabilityEachviewiscomposedofseveralwireframeoutlines,eachrepresentingasimplesolid.ConceptoftheShapeAnalysisMethod

topandbottom

leftandright

frontandbackConceptoftheShapeAnalysisMethodReadingDrawingsusingtheShapeAnalysisMethodAnalyzetheshapeofeachsimplesolidindividually.Basedontherelativepositionsandsurfacerelationshipsofeachsimplesolid,mentallyreconstructtheentirecompositesolid.

PartIIIStepsforReadingDrawingsPARTIIIStepsforReadingDrawings從最能反映物體形狀、位置特征的主視圖入手,將復(fù)雜的視圖按線框分成幾個部分。Dividebywireframes,partbypartProjectandimagineshapesComprehensivelyimagineanddeterminetheoverallshapeStartwiththemainview,whichbestreflectstheobject’sshapeandpositionalfeatures.Breakthecomplexdrawingintoseveralpartsaccordingtothewireframes.Usingtheprojectionrulesofthethree-viewsystem,identifyeachwireframe’sprojectionintheotherviews.Beginwiththewireframesthatbestreflectshapecharacteristicsandmentallyreconstructthesimplesolidformsandstructureseachwireframerepresents.Startwiththeviewthatbestconveyspositionalfeatures.Combineitwiththeotherviews,andbasedontherelativepositionsofthewireframes,determinehowthesimplesolidsarearranged.Finally,mentallyreconstructtheoverallformofthecompositesolid.ⅡⅢⅠⅣStepsforReadingDrawingsDividebywireframes,partbypartStepsforReadingDrawingsProjectandimagineshapesStepsforReadingDrawingsProjectandImagineShapesStepsforReadingDrawingsProjectandImagineShapesStepsforReadingDrawingsTheL-shapedplateispositionedatthebottomItisplacedcentrally—leftandright—ontopofthebaseplate,withitsrearedgealignedwiththerearedgeofthebaseItisalsosituatedonboththeleftandrightsidesofthesolidrepresentedbywireframe2,withtheirrearedgesallalignedComprehensivelyimagineanddeterminetheoverallshapeWheninterpretingdrawings,itisnecessarytorelateseveralviewstogethertovisualizethespatialshapeofthesolid.Analysis

oftheissueDonotapproachtheproblemsubjectively,one-sidedly,inisolation,orinastaticmanner.Considertheinterconnectionsofthingsandapproachtheproblemcomprehensivelyandinadevelopmentalmanner.0102StepsforReadingDrawingsUsingtheShapeAnalysisMethodMethodsforReadingDrawingsUsingtheShapeAnalysis

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