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Bar Scale always equals viewport scale x 12

GroveSci
Participant

Bar Scale always equals viewport scale x 12

GroveSci
Participant
Participant

I am using AutoCAD Civil 3D 2018. 

 

I have a drawing in feet. In the paper space I have a viewport where 1"=100'. When I go to bring in a scale it comes in smaller then it should by a factor of 12. My drawing has a scale of 1:1200 but the scale ratio of the scale bar is 1:14400. In order to make everything display right I have to multiply my divisions by 12. Then once the scale bar is in place I can manually correct the numbers. This would be ok, except that anytime I touch the viewport (to move it, clip it, etc.) the scale bar "fixes" its self causing it to show 1"=1200 feet instead of 1"=100 feet. if I select the scale bar and the viewport autocad recognizes that the scales are not the same with a little blue box that states "Viewport scale is not equal to annotation scale" clicking on the box is supposed to synchronize them but this does nothing. Changing the scale ratio on the scale bar properties causes my drawing to resize. 

 

I have checked the scale bar and confirmed that it is off by a factor of 12. I can draw a line in model space that is 100 feet long. I've even measured it to make sure the line that's been drawn is 100 feet and not 100 inches. The measuring tool tells me it is 100'-0". I then can trace this line in paper space. If I then move it and measure the traced line the measuring tool tells me it is 0'-1" in length. I then create a scale bar with a division of 1200 Feet. Placing the 1" line(traced from the 100 foot drawn line) on the zero mark on the bar causes it to fall on the 1st division marked 1200 feet. 

 

I can work around the problem by creating a false viewport(attaching the drawing scale to a viewport that exists outside of the print area instead of the one it's supposed to be associated with) or by manually altering the numbers so they are correct but it would be preferable that the scale bar worked correctly. I don't know if it makes a difference or not but even though my drawing is in feet. When I select one of the imperial scale bars the units seem to default to meters. Everything I've described happens regardless if i pick an imperial or metric scale bar.

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Respuestas (24)

GroveSci
Participant
Participant

The problem I'm experiencing is with all drawings not just an isolated incident. I've attached the example I created when the tech support person who used team share wished to observe what's happening. She did say that the example file I had provided the original tech support person wasn't exhibiting the same behavior I was describing. 

 

So, while I've attached the example, it may not be very enlightening. 

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RobDraw
Mentor
Mentor

Your solution was posted in message #2.


Rob

Drafting is a breeze and Revit doesn't always work the way you think it should.
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pendean
Community Legend
Community Legend
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GroveSci
Participant
Participant

I appreciate your attempt to help. But as others have mentioned this was one of the first things suggested. Presently I just set everything to unitless and use the work around options I discuss in post 19.

 

Specifically, I'll use the second option where I set up the numbers correctly and then scale the scale bar as needed so that it's marks are consistent with a 1" line (that doesn't print) that is part of my paper space template. I've long since given up on Autodesk actually correcting the issue since my escalated ticket was simply closed once it was passed along to a developer. I'm guessing they closed it because on the surface it just looks like user error and is easy to dismiss as such. Even other users that encounter it likely assume that they screwed up something and probably end up fixing it manually because they can't figure out what they did wrong. 

 

If anyone else is having this problem I suggest setting all your drawings to be unitless as it reduces the effect of the bug in the software. I'm currently using civil 3D 2022 and I still experience the problems described in my original post. By setting everything to unitless the cut/fill reports I generate are no longer off by a factor of 12^3. Basically the volume calc assumes everything is in feet, but the perimeter calculates based on the drawing units. So I would get a mismatch when it came to the cut/fill report. By making everything unitless I only have to screw with the scale bar instead of also having to create a 1/12 scale of my cut/fill models to find out the proper cubic yards of dirt.