Is it posible to obtain a line as a result of intersection two surfaces? But the line should have a real "Z" from one of the intersected surfaces (de facto should lie on one of the cutted surfaces).
Hi,
you can. Its a 3 step process.
1) Create a Delta TIN between the 2 surfaces.
2) Load the ZERO contour of that Delta TIN into your drawing (it will be at elevation zero). The zero contour is actually where the 2 original surfaces intersect.
3) Go to the DTM tool Drape>Vectors and drape that zero contour onto either of the 2 original surfaces.
This will then locate the intersetion graphic at the correct elevation.
HTHs
CR:
1) Create a Delta TIN between the 2 surfaces.2) Load the ZERO contour of that Delta TIN into your drawing (it will be at elevation zero). The zero contour is actually where the 2 original surfaces intersect.3) Go to the DTM tool Drape>Vectors and drape that zero contour onto either of the 2 original surfaces.
Bentley please CR: I would like to see this in a one Step process! That's to much work, and the Zero contours qualitity is depened from the Delta TIN settings and even got problems when the extirour boundries overlapping!
Regards
Frank
since 1985: GIS, CAD, Engineering (Civil) Senior Consultant : [Autodesk Civil 3D , Esri ArcGIS, VertiGIS: in previous days : Bentley MS V4 - V8i, GeoGraphics, Bentley Map V8i, InRoads, HHK Geograf, IBr DAVID] : Dev: [C, C++, .NET, Java, SQL, FORTRAN, UML][direct quote by: http://en.wikipedia.org/wiki/Helmut_Schmidt]: "Wer Kritik übel nimmt, hat etwas zu verbergen"Wer Grammatik- und/oder Rechtschreibfehler findet, der darf sie behalten :-)
I believe you can also do this with Modeler using the Elevation Difference tool. Choose the Cut/Fill Contour option and toggle on the Even option. Do not toggle the cut or fill options. This should generate contours at the intersection of the 2 surfaces which will be at elevation zero. You can then drape them on the surface as Michael suggested.
At least with this approach you can avoid having to create TIN files and save a step or 2.
Neil Wilson (aka Neilw)
Power Civil v8i 08.11.07.245
AutoCAD Civil 3D 2018
How about using Microstation mesh tools. Mayby that would work for you.
Display triangles of two surfaces with Mesh option checked in. Than use Mesh Intersect Tool. After that you can use Extract Boundary to display intersection linestring at real elevation.
Honestly I haven't used this worklfow with DTM's. Howewer I think it's worth giving it a try.
As for me Generate Isppach Surface command is good enough.
Adam.