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1、请同学们交作业,图纸一张,任务4-2 斜二测图,一、轴向伸缩系数和轴间角,轴向伸缩系数：p=r=1，q=0.5,轴间角：X1O1Z1=90 X1O1Y1=Y1O1Z1=135,例1：根据正四棱台的两面视图画斜二测图,二、斜二测图画法,60,40,50,X,Y,Z,1,1,2,2,3,3,4,4,例1：根据正四棱台的两面视图画斜二测图,二、斜二测图画法,60,40,50,X,Y,Z,1,1,2,2,3,3,4,4,例1：根据正四棱台的两面视图画斜二测图,二、斜二测图画法,60,40,50,X,Y,Z,1,1,2,2,3,3,4,4,例1：根据正四棱台的两面视图画斜二测图,二、斜二测图画法,60,
2、40,50,1,2,3,4,例1：根据正四棱台的两面视图画斜二测图,二、斜二测图画法,60,40,50,1,2,3,4,例2：已知三视图，画其斜二测图。,60,45,40,15,50,30,40,25,15,15,例2：已知三视图，画其斜二测图。,60,45,40,15,50,30,40,25,15,15,60,45,40,15,50,30,40,25,15,15,例2：已知三视图，画其斜二测图。,60,45,40,15,50,30,40,25,15,15,例2：已知三视图，画其斜二测图。,60,45,40,15,50,30,40,25,15,15,例2：已知三视图，画其斜二测图。,60,45,40,15,50,30,40,25,15,15,例2：已知三视图，画其斜二测图。,60,45,40,15,50,30,40,25,15,15,例2：已知三视图，画其斜二测图。,例3：已知两视图，画斜二轴测图。（课本P106同步练习）,例3：已知两视图，画斜二轴测图。（课本P106同步练习）,练 一 练,习题集P.48第2题,作 业,习题集P.48（2、3）,
