the_mann Posted November 11, 2011 Share Posted November 11, 2011 Hi all I have created a model, by lofting a shape along a curved spline path. The model propertie is currently '3d Solid' what I want to do is generate a 3d Face off of this model. I have exploded the 3d model and that gives me a surface, bu the dilema is that I do not khow how to 'trace' or turn this surface into a 3d face format. What I was thinking is that if the surface could be exploded into induvidual elements I would be able to draw over the surface with the 3d face toold and then have my model, but a issue with this is that I cant explode the surface into elementary elements AND the 3dface tool cant generate curves.... In short would any body be able to tell me how to turn a 3D model into a 3D Face or a Surface into a 3d Face? The programme I am exporting the model into accepts the following: DXF Entity SAP2000 Objects 1 POINT Point 2 LINE Frame/NLink 3 3DFACE Area 4 3DPOLYLINE Solid 5 CIRCLE Line(s) 6 ARC Line(s) Note: To be able to import the dxf entities as solids in SAP2000, you must draw them in AutoCAD as meshed polygons or meshed solids. ^^^I could also export the model as a solid but again do not khow how to get a meshsed polygon or meshed solid from my 3d solid, when I do meshsmooth, the model basically turns into a rectangle and looses its detail. As you can see it is number 3 I am working on. I have managed to create simple 3d faces and get them into the programme but the 3dface tool is very primiative and I cant see how I would create the curves that my model has, I cant seem to form a grid system either to use the 3dface - everything seems to draw in space.... Any help would be much appreciated! Quote Link to comment Share on other sites More sharing options...
ReMark Posted November 11, 2011 Share Posted November 11, 2011 I'm working at another site today using 2010 not my usual 2012 so I can't check that but I did come across a lisp routine that will convert a 3D solid object to a 3D face object if you think that might help. Quote Link to comment Share on other sites More sharing options...
Cad64 Posted November 11, 2011 Share Posted November 11, 2011 Try this: 1. Explode the 3D Solid to Regions 2. Use the CONVTOMESH command to convert the Regions to a Mesh 3. Explode the Mesh to create the 3D Faces. Quote Link to comment Share on other sites More sharing options...
the_mann Posted November 11, 2011 Author Share Posted November 11, 2011 I'm working at another site today using 2010 not my usual 2012 so I can't check that but I did come across a lisp routine that will convert a 3D solid object to a 3D face object if you think that might help. Hi ReMark, thats what I am trying to do, 3dsolid->3dface (or surface to 3dface) Im open to any routes at the moment, if you could link me to the routine I will try it out, never heard of lisp... Try this: 1. Explode the 3D Solid to Regions 2. Use the CONVTOMESH command to convert the Regions to a Mesh 3. Explode the Mesh to create the 3D Faces. Thanks for that! Unfortunately when I use the CONVTOMESH command it simplifies the surface to just a flat rectangle. At the moment the surface is curved and dips downwards, when I CONVTOMESH it changes to something thats completely different i.e a basic rectangle shape......but in saying that when I explode the mesh I do get 3dfaces Just that its 4 basic blocks....not ideal when I want to keep the detail Thanks so far guys!! Quote Link to comment Share on other sites More sharing options...
ReMark Posted November 11, 2011 Share Posted November 11, 2011 Never heard of lisp? I don't believe that for a second. You're just having a bit of fun. Here is the link. http://cadtips.cadalyst.com/3d-editing/convert-3d-solids-3d-face-objects See the CADTutor FAQ section for instructions on how to load/run a lisp routine. You're a funny guy! LOL Quote Link to comment Share on other sites More sharing options...
the_mann Posted November 11, 2011 Author Share Posted November 11, 2011 Hahahha, yea you got me >_ I ran the lisp file and it gave me the following: Unknown command "MASSELEMENTCONVERT". I think its because this routine should be run in autocad civil3d, when I was googling this probleme I found some websites that recommended using the masselementconvert feature but in AC Cilvil3d, would I be able to load the model in autocad civil3d then run the lisp? It seems like thats my only option, this has been bugging me for 3 days now 0_0 ... Quote Link to comment Share on other sites More sharing options...
Meg D Posted November 12, 2011 Share Posted November 12, 2011 Hi there, I'm in a similar dilemma. I have to create a 3D soil profile and so far, I have made surfaces representing each soil type. My problem now is to style the surfaces and make it a 3D solid such that each of the faces can be seen in 3D. Quote Link to comment Share on other sites More sharing options...
Meg D Posted November 12, 2011 Share Posted November 12, 2011 Oh and I'm using AutoCAD Civil 3D. Any ideas on how I can figure it out? Quote Link to comment Share on other sites More sharing options...
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