CompuServe Thread

#MicroStation to 3DS??

17 messages in this thread
#166508From: James M. MurphyApr 24, 1995 6:20 PM
Hi All! Murph' here' I just received a call from a Surveyor that uses MicroStation to create his Topography and was interested in doing fly-throughs with 3D Studio. Anyone have any experience bringing MicroStation Geometry in to 3D Studio??? Thank you in advance. Murph'
#166546From: LEE STEELApr 24, 1995 9:39 PM
The Civil firm I am now working at is converting Autocad to Microstation. I'll snoop around and see if I can find an answer. Lee
#166571From: James M. MurphyApr 25, 1995 12:42 AM
>>> The Civil firm I am now working at is converting Autocad to Microstation. I'll snoop around and see if I can find an answer. <<< Thank's Lee, I need all the help I can get on this one!. I'm a former AutoCAD Dealer but I've never even looked at MicroStation. Again, Thank you. Murph'
#166694From: LEE STEELApr 25, 1995 4:49 PM
Here's the deal, I'm told that MicroStation will write out native Acad .DWG files and .DXF files. My approach would be to bring those files into AutoCAD13 then use the new 3DSout command which seems to work quite well. If I can talk the guys who use MS at the office into giving me a 3D file saved in one of these formats I will try the conversion and report further on the results. Lee
#166794From: James M. MurphyApr 26, 1995 1:26 AM
Thanks a Jillion Lee I'd sure like to know if this works. Murph'
#166909From: LEE STEELApr 26, 1995 5:11 PM
It works!
#166953From: James M. MurphyApr 26, 1995 10:34 PM
Great Lee! Thank you very very much! Murph'
#166552From: Tim c BrananApr 24, 1995 10:22 PM
I think he would have to export to DXF. (I know, an obvious question). If the 3d portion of Microstation is anything like their 2d stuff, he may be in for a few quirks and frustrations getting it out. I don't know what kind of stuff microstation might be dumping into it, though.
#166572From: James M. MurphyApr 25, 1995 12:42 AM
Thank's Tim, I kind of expected that the Native MicroStation Code might throw a couple of weird things in to the mix. If you are able to find out anything else I'd be greatful. Thank's! Murph'
#166720From: Tim c BrananApr 25, 1995 8:00 PM
Well, if you are able to filter it through Autocad, it should help a lot. Autocad is certainly more flexible with dxf files than is 3ds. My experience with microstation was with 2d files, and we had to read the microstation files directly into our unix workstations, and I can tell you it wasn't a joy to behold. I wanted it to be simpler than that, but the people we got the files from (we were doing a job for them), didn't want/ didn't understand/ didn't care to give us the files in DXF, or something a little friendlier, so we had to use brute force to make it work. Hopefully your situation will be different. Probably will.
#166742From: LEE STEELApr 25, 1995 10:04 PM
Sounds like we work at the same company <g>, Where did you say you live?
#166761From: Tim c BrananApr 25, 1995 11:04 PM
>>, Where did you say you live?<< I currently reside in Portland, OR.
#166910From: LEE STEELApr 26, 1995 5:11 PM
Same company, NOT!
#166795From: James M. MurphyApr 26, 1995 1:26 AM
Actually this potential client hasn't really purchased all his software and hardware yet so I was hoping we could steer him in the right direction. He worked for the DOT and is starting his own company. Of course coming from the DOT he was using Microstation and a Unix Software program for surveying information call CEAL I beleive that the correct acronym. Of course I haven't a clue as to the CEAL format but he did say the it was able to transfer to the Microstation software he was looking at. I've got him trying to get a DXF file from this setup prior to his purchase to we can see if we can get it in to 3D Studio for topography/Rendering. Thanks Tim! Murph'
#166896From: M. G. BATCHELORApr 26, 1995 3:39 PM
Hi Murph, I have exported Microstation 5.0 DXF's to 3DS quite successfully for some time. All of my work has been 3D stuff (no 2D), and within the obvious limitations, it works well. The obvious limitations being Boolean-operated geometry, trimmed surfaces, etc.. In fact, there is a way to export/import NURBS & other surfaces whereby you can actually re-skin the mesh using the YG's SKIN/SLICE IPAS. You can also apply textures to the re-skinned mesh parametrically. I can't say more about that now, as I am currently contracted to writing a book for another company, whereby this technique is explained for use with their B-Spline modeler. With that program, you can actually export just the *lattice*, and re-skin and map flawlessly in 3DS. See my other posts & uploads regarding this subject, soon. Regards, BILL
#166858From: Grahame NaylorApr 26, 1995 11:23 AM
Murph I have been taking in a lot of uStation stuff recently, the biggest problems come from the Beta spline entity type which ( as you may imagine) is very popular for modelling ! The uStation operator can determine the segmentation of the resulting pline, pline-mesh or whatever before translating it but it is very easy to end up with adjoining parts with different segmentations and maybe a few glitches as well. There is probably room for an in-depth analysis of the ideal way to translate and I think it would be worth it, uStation 5 looks to be a very good modeller but it would need uStation and 3DS in the same for a day or so for trial and error testing. On the whole the problems are not really any worse than coming from ACAD, apart from one big whoopsy…. uStation can generate a polyface mesh entity with only _2_ vertices in the face, ACAD will accept this and even pass it on to .DXF but 3DS aborts the dxfin with an "Invalid ratsnest in DXF" error message. One test for this condition is that uStation will not read the .DXF back. Using Autovision to 3DSOUT bit by bit will detect the offending part but proceed with care Autovision is one of the worse ways around for getting a 3DS mesh. If this causes a major problem I have an Autolisp routine which will zap the offending faces ( it is not exactly thoroughly tested but does seem to work OK) let me know if you want it. Microstation 5 will output .DWG or .DXF I have mostly used .DWG out of uStation and then passed it through ACAD 12 as a sanity check before dxfing for 3DS. Microstation 4 only has .DXF out and causes far more problems where beta spline entities are concerned. Grahame
#167202From: James M. MurphyApr 28, 1995 1:18 PM
Thank you Grahame! This is exactly the kind of information I need. I'll be getting together with the client next week and all this is going to be extreemly helpful. I'm very greatful for all the responses I've gotten regardng this. Thank you Grahame and thank you All! Murph'