[求助]MATLAB怎样读入TXT的数据

[denverjie]

solid PRT0001
facet normal -1.299843e-01 -9.913399e-01 1.868893e-02
outer loop
vertex -6.184109e+00 -2.415491e+01 1.815818e+00
vertex -6.445185e+00 -2.415491e+01 -1.578563e-15
vertex -3.061516e-15 -2.500000e+01 0.000000e+00
endloop
endfacet
facet normal -1.299843e-01 -9.913399e-01 -1.868893e-02
outer loop
vertex -6.184109e+00 -2.415491e+01 -1.815818e+00
vertex -3.061516e-15 -2.500000e+01 0.000000e+00
vertex -6.445185e+00 -2.415491e+01 -1.578563e-15
endloop
endfacet
facet normal -1.194538e-01 -9.913399e-01 5.455272e-02
outer loop
vertex -5.422034e+00 -2.415491e+01 3.484530e+00
vertex -6.184109e+00 -2.415491e+01 1.815818e+00
vertex -3.061516e-15 -2.500000e+01 0.000000e+00
endloop
endfacet
facet normal -9.924580e-02 -9.913399e-01 8.599697e-02
outer loop
vertex -4.220698e+00 -2.415491e+01 4.870946e+00
vertex -5.422034e+00 -2.415491e+01 3.484530e+00
vertex -3.061516e-15 -2.500000e+01 0.000000e+00
endloop
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.
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数据结构是这样，这是我从PROE里导出的STL数据，怎么样读入matlab，请各位高手赐教！多谢。