我有多边形坐标x，y，z的数据：
（现在我正确格式化数据......）
x，y，z = [-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， - 5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， -5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386 ，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， - 5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， -5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386 ，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， - 5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.3 86，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， -5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386 ，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， - 5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， -5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386 ，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， - 5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386， -5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.3 86，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386，-5.386]，[ - 8.96564198，-8.91759205，-8.91759205，-8.85157394，-8.85157394，-8.10881138，-8.10881138，-8.04073524， - 8.04073524，-7.29788256，-7.29788256，-7.22981453，-7.22981453，-6.48705292，-6.48705292，-6.41897631，-6.41897631，-5.67612362，-5.67612362，-5.60804701，-5.60804701，-4.8652854，-4.8652854，-4.79720879，-4.79720879， -4.0543561，-4.0543561，-3.98628807，-3.98628807，-3.24352646，-3.24352646，-3.17545009，-3.17545009，-2.43259692，-2.43259692，-2.36452055，-2.36452055，-1.62175894，-1.62175894，-1.55369115，-1.55369115，-0.8108381 ，-0.8108381，-0.06807642，-0.06807642,0.0,0.0,0.06844116,0.06844116,0.81120288,0.81120288,0.87964404,0.87964404,1.62249708,1.6244708,1.69094694,1.69094694,2.43370867,2.43370867,2.50214982,2.50214982,3.24500275,3.24500275,3.3134439,3.3134439， 4.05620575,4.05620575,4.12464666,4.12464666,4.86749983,4.86749983,4.93594122,4.93594122,5.77870283,5.67870283,5.74715233,5.74 715233，6.49000549，6.49000549，6.55844688，6.55844688，7.3012085，7.3012085，7.36964941，7.36964941，8.11250305，8.11250305，8.17483044，8.17483044，8.91759205，8.91759205，8.96564198，8.96564198，9.00691128，9.00691128，9.69999981，9.69999981，9.88442802，9.88442802，9.93230438，9.93230438， 10.1330328，10.1330328，10.10715866，10.10715866，10.30800629，10.30800629，10.31350517，10.31350517，10.47220325，10.47220325，10.47767353，10.47767353，10.5281105，10.5281105，10.53109264，10.53109264，10.5381422，10.5381422，10.53948784，10.53948784，10.52461624，10.52461624，10.52502251，10.52502251，10.50097942， 10.50097942，10.50071716，10.50071716，10.48459435，10.48459435，10.39999962，10.39999962，9.60570526，9.60570526，9.56569958，9.56569958，8.55252838，8.55252838，8.50290012，8.50290012，7.48804045，7.48804045，7.44000006，7.44000006，6.42374277，6.42374277，6.37720013，6.37720013，5.35944319，5.35944319， 5.31430006,5.31430006,4.299522181,4.299522181,4.25139999,4.25139999,3.231171 61,3.211117161,3.18860006,3.18860006,2.16709828,2.16709828,2.1257,2.1257,1.10318041,1.10318041,1.06289995,1.06289995,0.0392214,0.0392214,0.0,0.0，-1.03653765，-1.03653765，-1.07512617，-1.07512617，-2.11073256，-2.11073256， -2.15035224，-2.15035224，-3.18478632，-3.18478632，-3.22547793，-3.22547793，-4.25886393，-4.25886393，-4.30070353，-4.30070353，-5.33279181，-5.33279181，-5.37582827，-5.37582827，-6.40673113，-6.40673113，-6.45105314 ，-6.45105314，-7.48050976，-7.48050976，-7.52618217，-7.52618217，-8.55428886，-8.55428886，-8.6014061，-8.6014061，-9.62787724，-9.62787724，-9.67652988，-9.67652988，-10.36547565，-10.36547565，-10.39999962， - 10.39999962，-10.41505051，-10.41505051，-10.52405071，-10.52405071，-10.52689934，-10.52689934，-10.53348255，-10.53348255，-10.53496647，-10.53496647，-10.55486393，-10.55486393，-10.55375099，-10.55375099，-10.56892776，-10.56892776， -10.56253052，-10.56253052，-10.56037807，-10.56037807，-10.54539394，-10.54539394，-10.507014 27，-10.50701427，-10.47525024，-10.47525024，-10.35439491，-10.35439491，-10.34592438，-10.34592438，-10.25755596，-10.25755596，-10.10438442，-10.10438442，-9.99352741，-9.99352741，-9.69999981，-9.69999981，-9.65165234， -9.65165234，-8.96564198，-8.96564198，-8.91759205]，[1.74571705,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,174667001,1.74667001,1.74667001,1744667001,1744667001,174667001,1744667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001， 1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001， 1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74 667001,1.74667001,1.74667001,174667001,1.74667001,174667001,174667001,1744667001,174667001,1.74667001,1.74667001,174667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001,1.74667001， 1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74667001，1.74571705，1.74571705，1.75442255，1.75442255，1.75442255，1.75442255，1.82700002，1.82700002，1.96033335，1.96033335，2.36971664，2.36971664，2.46872306，2.46872306，2.93799996，2.93799996，3.10320163，3.10320163，3.97582817， 3.97582817,4.14201975,4.14201975,5.02765846,5.02765846,5.169697523,5.169697523,6.08110237,6.08110237,6.55430679,6.55430679,7.13444996,7.13444996,7.31143522,7.31143522,8.18754387,8.18754387,836124897,836124897,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012， 9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.222000 12,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012， 9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012， 9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,9.22200012,8.99069691， 8.99069691,8.55359173,8.55359173,8.16760635,8.16760635,7.44270992,7.44270992,7.05001211,7.05001211， 6.30944681，6.30944681，5.93197727，5.93197727，5.17690754，5.17690754，4.80531073，4.80531073，4.04644012，4.04644012，3.62315774，3.62315774，2.93799996，2.93799996，2.57678986，2.57678986，2.37031913，2.37031913，2.0530901，2.0530901，1.82700002，1.82700002，1.75442255，1.75442255，1.74571705， 1.74571705,1.74571705,1.74571705,1.74667001]
当我尝试做的时候：
import mayavi.mlab as mvi
mvi.plot3d(x,y,z)
mvi.show()
显示空白情节......
但这可以显示字形和点：
import mayavi.mlab as mvi
mvi.points3d(x,y,z)
mvi.show()
这是怎么回事？
答案 0 :(得分：0)
在测试代码时，我有一个警告：
Generic Warning: In /build/vtk6-MXHdkt/vtk6-6.3.0+dfsg1/Common/DataModel/vtkPolyLine.cxx, line 197
Coincident points in polyline...can't compute normals
Warning: In /build/vtk6-MXHdkt/vtk6-6.3.0+dfsg1/Filters/Core/vtkTubeFilter.cxx, line 243
vtkTubeFilter (0x52e7970): Could not generate normals for line. Skipping to next.
can't compute normals可能意味着你有连续的数据点叠加。
一种解决方案是添加选项tube_radius=None。这样，VTK不会绘制一个跟随您的数据点的管，而只是简单地将它们链接起来，请参阅http://docs.enthought.com/mayavi/mayavi/auto/mlab_helper_functions.html#plot3d