how to transform polylinese in 3d polylinee

[brighela]

I must transfoam polylinese (e.g. the layout of a road derived from the shapefile of its theme) in a track equipped with the quota or the 3d polylines. for the purpose I have the points listed in the area concerned by the polylines and also the surface in 3d.
can you do with autocad 2007? If you can tell me how?
Thank you.

 

[brighela]

I tried to use pol.lsp obtaining the transformation in 3dpoly but without the acquisition of the quato either using the quota points, both the quotated surface, and the pointed level curves.
Any suggestions?
Thank you.
Brighela

 

[PlannerRoad]

if you have the points listed you can get the dtm in 3dfaces with sitetope:
http://www.cad3d.it/forum1/showthread.php?t=14431or possibly even with this lisp:
http://www.cad3d.it/forum1/showthread.php?t=1005then you can use the autosez 2 program of gp. to get the polyline at altitude:
http://www.cad3d.it/forum1/showthread.php?t=17601

 

[brighela]

if you have the points listed you can get the dtm in 3dfaces with sitetope:
http://www.cad3d.it/forum1/showthread.php?t=14431or possibly even with this lisp:
http://www.cad3d.it/forum1/showthread.php?t=1005then you can use the autosez 2 program of gp. to get the polyline at altitude:
http://www.cad3d.it/forum1/showthread.php?t=17601

I have just used sitetope to get dtm in 3dfaces; Now I try to use the program you have indicated to me.
Meanwhile, thank you.
Brighela

 

[brighela]

then you can use the autosez 2 program of gp. to get the polyline at altitude:
http://www.cad3d.it/forum1/showthread.php?t=17601

I tried to use the gp program but it tells me that polylinea is not, and it is obvious, a line and then it does not proceed. What can I do?
Thank you.

 

[GP.]

In fact autosez with the polylines gets angry, I think flashmnt 5.0 do it, if you want to try downloading the demo version (20 use).
http://www.delicad.com/anglais/flashmnt.php

 

[brighela]

In fact autosez with the polylines gets angry, I think flashmnt 5.0 do it, if you want to try downloading the demo version (20 use).
http://www.delicad.com/anglais/flashmnt.php

thank you very much, unfortunately I have autocad in the version 2007 and the software you indicated turns on autocad 2010. other ideas?

 

[Giuliano64]

Hello, everyone.
I found your interesting question and tried to solve it.
(in this period I have to do with the relief of a ground, made with about 300 points. )

from the relief I passed to a solid made with a triangulation optimized with the method of delaunay (opened another 3d on this).

to get the 3d polylinea of the road track I first designed it with a 2d polylinea, I closed the polylinea with an external path, I turned it into region and with this region I designed a solid extruded.
the intersection of this solid with that of the soil produced a solid whose intersection edge is precisely the 3d track of the road.
I then exploded the solid, I erased all the elements except those of this edge and so I got the line segments I wanted.
But the 3d polylinea must draw it by hand because I did not succeed in conversion.


edit: however, I can draw with the vba the polylinea 3d of the axis of the road starting from the track on the floor. curves can be represented with splines (because in vba you can not draw propellers). If I want the circular curve I have to do it by hand drawing a stretch of cylindrical propeller.
for each section (direct or curve) I also add the sections type of detector and excavation and with the loft command I get two solids: one represents the road body and the other represents the volume of excavation. with some intersection operations I can get the part of the road that goes in detected and the part of soil that is to be excavated.