平面立體的投影Projectionofaplanarsol

平面立體的投影Projectionofaplanarsolid主講人：李帥Speaker:LiShuai教學目標Teachingobjectives1.了解平面立體的形成2.熟悉平面立體的投影規(guī)律3.掌握平面立體以及其上點的作圖UnderstandtheformationofplanarsolidsFamiliarwiththeprojectionlawsofplanarsolidsMasterthedrawingofplanarsolidsandpointsonthem123目錄CONTENTS認識平面立體平面立體的投影平面立體上點的投影UnderstandingplanarsolidsProjectionofaplanarsolidProjectionofPointsonaPlaneSolid4思考題Reflectionquestions1認識平面立體UnderstandingplanarsolidsONE基本立體BasicStereo基本立體BasicStereo平面立體planebody曲面立體curvedsolid棱柱yramid兩個底面Twobottomsurfaces若干個側棱面Severalsideedges一個底面Abottomsurface錐頂conicnode平面立體planebodyprism棱錐2平面立體的投影ProjectionofaplanarsolidTWO水平面horizontalplane正六棱柱的投影Projectionofregularhexagonalprism正六棱柱的投影Projectionofregularhexagonalprism正六棱柱的投影Projectionofregularhexagonalprism正平面frontalplane正六棱柱的投影Projectionofregularhexagonalprism正六棱柱的投影Projectionofregularhexagonalprism鉛垂面verticalplane正六棱柱的投影Projectionofregularhexagonalprism各表面的投影Projectionofeachsurface平面立體的三視圖Threeviewsofaplanarsolid各表面的交線及頂點EachsurfaceIntersectionlineandvertex正三棱錐的投影Projectionofaregularpyramid水平面horizontalplaneSBA垂直面verticalplane一般平面Generalplane正三棱錐的投影Projectionofaregularpyramid3平面立體上點的投影ProjectionofPointsonaPlaneSolidTHREE棱柱上的點Pointsonaprism棱柱上的點Pointsonaprism聚集性Aggregation棱柱上的點Pointsonaprism聚集性Aggregation不判斷可見性Don'tjudgevisibility4思考題QuestionsFOUR12請思考如下問題Pleasethinkthefollowingquestions簡述在棱錐表面上取點的作圖過程?棱臺是怎樣形成的?其三視圖有什么特點?Whatshouldbepaidattentiontowhenselectingviewsfordifferentparts?Howisthepris