Revit Architecture Forum
Welcome to Autodesk’s Revit Architecture Forums. Share your knowledge, ask questions, and explore popular Revit Architecture topics.
abbrechen
Suchergebnisse werden angezeigt für 
Anzeigen  nur  | Stattdessen suchen nach 
Meintest du: 

Project Base Point

15 ANTWORTEN 15
GELÖST
Antworten
Nachricht 1 von 16
BIM_Dreamer
3441 Aufrufe, 15 Antworten

Project Base Point

 have a site plan autocad file link into Revit, if you look at the screenshot you will see the no. 2 N 29881.659, E 5095.835. Is at the end part of the site plan boundary. But when I key in the N/E value Using Revit Project Base Point is nearer into no. 1. What is the problem with this Project Base Point or autocad file?

 

Project Base Point1.jpg 

15 ANTWORTEN 15
Nachricht 2 von 16
BIM_Dreamer
als Antwort auf: BIM_Dreamer

just to follow up the dimension should be 150040 instead of 150.040 maybe that is the reason?

 

qq3.jpg

Nachricht 3 von 16
JasonLLINDNER
als Antwort auf: BIM_Dreamer

Probably it's a unit issue... Make sure both cad and rvt are using the same
Nachricht 4 von 16
BIM_Dreamer
als Antwort auf: JasonLLINDNER

they are in the same units. thank you

Nachricht 5 von 16
RDAOU
als Antwort auf: BIM_Dreamer

@BIM_Dreamer

 

Before you linked the CAD file in, did you open the dwg file and cleaned it? ie: the Portion you Need can be zoomed to the extents of the Screen?

 

  1. ...Is that a decimal Point or a Digit grouping sep. in the dim reading 150.040 vs 150040??? in Revit it is obvious it is mmm...
  2. ...can you Change the Project Units and add 4 decimal Points then in the CAD file Switch unit to mm and place new piont coordinates and validate your findings? It could be that what you are keying in (IN Revit)  is missing a few Digits due to the defined Units accuracy settings
  3. ...Last probable cause...How far off from the Startup Location in Revit are you? If too far off (>10miles) nothing will tally

YOUTUBE | BIM | COMPUTATIONAL DESIGN | PARAMETRIC DESIGN | GENERATIVE DESIGN | VISUAL PROGRAMMING
If you find this reply helpful kindly hit the LIKE BUTTON and if applicable please ACCEPT AS SOLUTION


Nachricht 6 von 16
BIM_Dreamer
als Antwort auf: RDAOU

@RDAOU yes i cleaned the autocad file to the max.

 

you wrote

 

...Is that a decimal Point or a Digit grouping sep. in the dim reading 150.040 vs 150040??? in Revit it is obvious it is mmm...

 

    when i measure the distance it says 150.040 it should be 150040mm

 

you wrote

 

...can you Change the Project Units and add 4 decimal Points then in the CAD file Switch unit to mm and place new piont coordinates and validate your findings? It could be that what you are keying in (IN Revit)  is missing a few Digits due to the defined Units accuracy settings

 

already changed to mm and 4 decimal points

 

you wrote

 

..Last probable cause...How far off from the Startup Location in Revit are you? If too far off (>10miles) nothing will tally

 

please see attached is that consider 10 miles? (not sure)

 

Sorry for another question. what is the reason why the value of N becomes - sign?

 

thank you

 

qq4.jpgqq5.jpg

 

 

Nachricht 7 von 16
Keith_Wilkinson
als Antwort auf: BIM_Dreamer

Looks like a units issue to me.  When you imported the CAD plan did you use 'automatically detect units' or set the units yourself?  If it's the former try doing it again selecting metres and see if that sorts it.

 

In general if this is a survey from a reputable survey company then it will more than likely be in metres rather than millimetres.



"Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime."
Maimonides
Nachricht 8 von 16
BIM_Dreamer
als Antwort auf: Keith_Wilkinson

hello, i tried both auto-detect and millimeters and the outcome are the same. the file is from microstation .dgn and imported to autocad. but the units is still in MM. i have a feeling that caused the problem of importing but not too sure. thank you.

Nachricht 9 von 16
Keith_Wilkinson
als Antwort auf: BIM_Dreamer

Try metres. (or Meters as it's American software... )


"Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime."
Maimonides
Nachricht 10 von 16
BIM_Dreamer
als Antwort auf: Keith_Wilkinson

not possible autocad file is in MM. thank you

Nachricht 11 von 16
Keith_Wilkinson
als Antwort auf: BIM_Dreamer

If you aren't going to try it then I'm sorry I can't help you any further.  But to finish, if you have a dimension that reads as 150 instead of 150000 you have a units issue.

 

Good luck sorting your issue.

 

Just in case you didn't understand it's the bit in RED that you need to change.

 

 

2016-08-24_09-04-45.png



"Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime."
Maimonides
Nachricht 12 von 16
RDAOU
als Antwort auf: BIM_Dreamer

@BIM_Dreamer

 

You didn’t really answer any of my questions accurately...

  • On your screenshot I can read all sorts of Units!!! That (.) appears like a decimal Point sometimes and other times like a digit grouping sep.

 

 

  • go to and double check again the Project Units on both files and (not so important) but do verify that the Linear Dimension Annotation you are using is using Project UNITS and not an alternative Setting.

 

 

  • Units can be bluffing if your Project is set to meters and the Dim Annotation using alternative mm

 

 

  • Good you changed...I asked you to go back to CAD file open it in AutoCAD and place coordinate Points (live ones)...the ones you have are most definitely converted to text (otherwise you won’t see different Units on the cad file)

 

 

  • The Project base Point is not necessarily the Startup Location.

 

 

  • Select the Project base Point >> unclip it >> right click it >> click "Move to Startup location"

 

 

  • Once you do Report back if it moved far away or stayed in place

 

 

Similar to what @JasonLLINDNER and @Keith_Wilkinson have already said...from just a look at a screenshot it seems that the most probable cause is the Units...and a messy DWG cad file.

 

One of two Options...Either you upload the file for someone to help you fix OR you Need to try every single suggestion given and report what you did, how you did it and what were the results (yes/no/maybe/not possible are not acceptable answers if you Need to resolve this)...this is one of the most annoying yet easiest Topics to resolve in Revit so let’s not make it a guessing game else I too won’t be able to help either if it's going in that direction

YOUTUBE | BIM | COMPUTATIONAL DESIGN | PARAMETRIC DESIGN | GENERATIVE DESIGN | VISUAL PROGRAMMING
If you find this reply helpful kindly hit the LIKE BUTTON and if applicable please ACCEPT AS SOLUTION


Nachricht 13 von 16
ToanDN
als Antwort auf: BIM_Dreamer


@BIM_Dreamer wrote:

not possible autocad file is in MM. thank you


It does not mean a whole lot, if anything at all.  Change units in AutoCAD does not scale the drawing for you.

 

What do you see when you measure a know distance in AutoCAD?  I would do what @Keith_Wilkinson has suggested in his screenshot.

Nachricht 14 von 16
chrisplyler
als Antwort auf: BIM_Dreamer

Meh. Just move the cad link to line it up with your Revit base point. It's just a background.

Nachricht 15 von 16
Keith_Wilkinson
als Antwort auf: chrisplyler

Ordinarily I'd agree wholeheartedly with that solution, however if the import scale is wrong then there's still a major issue.



"Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime."
Maimonides
Nachricht 16 von 16
BIM_Dreamer
als Antwort auf: Keith_Wilkinson

thank you all, just changed  dwg units in autocad and link again into revit now reading correctly.

Sie finden nicht, was Sie suchen? Fragen Sie die Community oder teilen Sie Ihr Wissen mit anderen.

In Foren veröffentlichen  

Autodesk Design & Make Report