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1、VHW三面投影图（VHWthree-planeprojection）VHW三面投影图(VHWthree-planeprojection)Thedevelopmentof3.5.3threeplaneprojectionFromthreetothreeplaneprojectiontotheviewmethodis:aVprojectionofstandingstill,istheview,H......matrix:TWC=TZ-TWT,sothath=theta=90~-10,sideviewofthecoordinatesofthepointsare:expansio
2、ndiagramasshowninfigure6.4-15.Figure6.4-15thethreeprojectionsoftheexpansion.Words:379-source:practicalmachinetooldesignmanualReadthethreeplaneprojection,apointofthefulltext.Theprojectionofthespacecoordinatepointfromthe2-13pointtothethreeprojectionsurfaceisstillapointatthedistancefrom1.tot
3、heprojectionsurface.Thethreeprojectionandprojectionlawofthepoint,inFigure2-14,theprojectionofApoints,,HandW,respectively,fromthespacepointAtotheprojectionsurfaceofV,anda,theprojectionof"a","a"and"Y"onthetwoprojectionsurfacescanbeobtained.Theyarecalledthepositive(......words:903-source:you
4、ngmechanicaldrawingscrashReadthefulltext,projection>>>three1.planestereoprojectionplane,themostcommonlyusedareprismsandpyramids.(1)projectionprismprismisvisiblefromfigure1-60projection...Threepyramid,thepyramidforprojection,candofirstatthebottomofeachprojection,thentheprojectionconetop,th
5、eprojectionwiththesamenameastheconetopbottomsurfaceofeachprojectionisconnected,edge......words:9038-source:constructionworkersknowledgemapwithacceleratedtechniquesReadthefullprojectionplaneprojection.Oneofthebasicconceptsofprojectionmethod.Inprojectionmethod,bearprojectionplaneorothersurf
6、acecalled...Usuallyconsistsofthreemutuallyperpendicularplaneprojection,theVsurfaceiscalleduprightprojectionsurface,Hsurfaceiscalledthehorizontalprojectionplane,Wplanecalledthesideverticalprojectionplaneperpendiculartoeachother.Threetheprojectionplane,thespaceisdividedintoeightparts,eachpa
7、rtiscalleda......words:178-source:volumefifth,mathematicsdictionaryThree,thereadingprojection>>>point,lineandplane(a)projectionanalysispointprojection1.objectpointisthebasicgeometricelementsoftheobject,itmustgraspthecharacteristicsofprojectionprojectionplaneparallel
