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MattG

Arc Dimensioning

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I am trying to dimension items along a path.  I am wondering what others would do for this type of dimension.  Basically, the path is made up of different arcs.  See the attached simplified picture.  

 

Typically I will do things like this with curved stage trussing, but generally, those items are all on an arc that is a consistent angle. I generally use the arc length dimension tool to note where things land on an arc by adding a dummy arc to it and apply the dimension to that arc.  However in this example, I want to dimension point "C" starting from the lower left point like A & B, but the arc changes diameters along the way.  What would be a good way to dimension that distance in other's opinions?

 

Thanks,

Matt

Arc dimensioning.PNG

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You can get the arc length in the OIP.

 

There is an src length measuring tool in the dimes/notes toolset

 

You could create a custom Data Stamp.

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Yeah sort of thought about that, but wasn't sure if someone had some sort of cool work around without doing the kind of "pretend" non-associative dimension.  I do dummy dims in perspective views all the time and it just sucks when you update things and they don't update.

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It is but not across multiple arc.......that is my issue.  It doesn't seem to work if I compose them and recognize the base arc.

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yes, once you compose, you no longer have arcs, you have poly lines. Keep the arcs in a separate layer of class, dimension those.

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I think I would dimension the chord length instead if the arc changes radii and auto-updating was important.

 

1521524432_ScreenShot2018-11-12at9_01_59AM.thumb.png.70f527890a66dffae7e71fcdf7208555.png

 

@Kevin Allen's suggestion of using a custom Data Tag is interesting and would work using an objects perimeter data. Here's what that could look like.

 

640290155_ScreenShot2018-11-12at9_06_28AM.thumb.png.65c1fe31d117dad257e233102c884965.png

 

It seems to update as you change the arc. File attached below.

 

Kevin

 

 

 

 

 

 

Tag Test.vwx

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