1. That is the main condition for good 3D model. Therion is based on theory of oriented graphs and to ignore this fact is direct way to hell.
2. The problem is not in MeshLab, the wire model was from ParaView and anybody may see that there are several very strange objects inside the model.
There is very easy way to solve it - check and correct all 65 km of your drawing. Not any joke.
BTW, my model has fixed point too.
m.s.
On Oct 22, 2015, at 03:09 PM, Pavel Herich <herich@speleodd.sk> wrote:
Well, finally i get the (part of) conclusion, why it doesn´t work
properly:
1. there is no importance of line:wall orientation in th2 as Martin
suggested
2. but it is because i have used FIXED POSITIONED 3d model. It has the
result in destroyed 3d in Meshlab and prevents proper computation of
volume and surface. CS IJTSK and UTM33 as well i have tried with no
succes (even there can be seen small difference). Since there is need to
compute all my data which consist 65 km of cave passages and thousands
fixed stations, I do not see any solution on the horizont, but there
should be something to solve it..?.
Palo
Dňa 2015-10-22 11:58 Martin Sluka napísal(a):
The same cave but after new explorations:
Loch:
ParaView
MeshLab
Mesh Bounding Box Size 68.374199 153.150894 62.903999
Mesh Bounding Box Diag 179.128845
Mesh Volume is 43708.933594
Mesh Surface is 21756.070312
Thin shell barycenter -14.023410 -37.206078 -14.819854
Center of Mass is -15.087652 -42.666534 -16.276274
Inertia Tensor is :
| 20330152.000000 -3620606.750000 -1168910.625000 |
| -3620606.750000 6608607.000000 -4662930.000000 |
| -1168910.625000 -4662930.000000 21506810.000000 |
Principal axes are :
| 0.231695 0.934567 0.270003 |
| 0.970067 -0.242716 0.007686 |
| -0.072717 -0.260140 0.962829 |
axis momenta are :
| 4363844.500000 21226780.000000 22854932.000000 |