Make sure you all ask Autodesk to add this feature. The one-line is already created in the background, just look at your System Browser. That's your one-line diagram. Should be simple enough to get that out graphically into a Drafting View or similar.
I've created Revit annotation symbols so I could use labels to create a one-line.
Use this link to tell Autodesk what features you need:
http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=1109794
We're up to 2016 now and they still don't have this feature included. I'm familiarizing myself with the API (was a programmer in a former life) and going to attempt to pull the circuiting information from the database to get some sort of auto-generated one-line. Surely someone has done or attempted this by now.
That's great to hear! We need more people like this, with programming background, working in the AEC industry. This is possible via API, I've seen a YouTube video of a screencast showing someone's custom solution. I've never been able to find a place to purchase this from that place.
DesignMaster is another tool out there which has a Revit add-in that will create a one-line diagram based on the project parameters. Actually I take that back. Just double-checked Design Master, they are apparently still working on the One-Line Diagram feature.
We did eventually finish that one-line diagram tool for Revit. More info and a video here:
http://www.designmaster.biz/revit/one-line-riser-diagram.html
I converted all of our AutoCAD blocks into Revit Families.
generic Annotative families where only symbols are needed
i can place them in my drafting view to layout the One Line diagram or Riser Diagram
it is part of the model and removes having to deal with any formatting issues linking AutoCAD into Revit
IMHO the more you keep Revit Native the better the project turns out.
With the DesignMaster tool complete, I may need to check out a trial version now. Not having a built-in one-line tool has been a burden. I've come up and found other "work-arounds" to make it somewhat easier, various schedules in the project. I got a Dynamo script to work on the labelling of the equipment, based on naming the symbols first.
More recently I found someone suggested and made a TAG with all the data in it from Labels, and they used a section view with everything else hidden. They suggested you could edit the TAG graphics if you wanted more symbols. I used this idea as a check for a one-line diagram on a project recently. Huge benefit to having "live" data.
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