11.1求点A的透视A0,a0(用正投影法)oxoxhhassaHVaxa0A0ag11.2求H面上直线AB的透视A0B0,a0b0。hhxooxsbaaxbxsagbgA0a0B0b011.3H面平行线AB高于H面35mm,求透视A0B0和次透视a0b0。hhxooxsbaaxbxsagbga0b0ab35mm35mmA0B011.4V面垂直线AB高于H面35mm,求透视A0B0,a0b0。hhxooxsbaaxbxsagbga0b035mmA0B0ab11.5H面垂直线AB长25mm,下端B高于H面10,求透视A0B0,a0b0。hhxooxsabaxbxsagbga0b025mmA0B0ab10mm11.6H面平行线AB高于H面5mm,求透视A0B0,a0b0。hhxooxsbaxsaga05mmA0B0ab5mmabgbxb0hhxooxsbaga05mmA0B0abgb0nnfFN正投影法:视线法:11.7已知高度为35mm的H面平行线AB的次透视a0b0,求透视A0B0。hhxob0a0nFNA0B035mm11.8已知高度为40mm的点A的次透视a0,求透视A0。hhxoa0n(任取)NA040mm11.9H面平行线AB高于H面35mm,求透视A0B0,a0b0。hhxooxsbaaxbxsagbga0b0abA0B035mm35mm11.10直线AB的上端A高于H面35mm,倾角为30,求透视A0B0,a0b0。(1):hhxooxsbaaxbxsagbga0b0aA0B035mm30