Is there a way to align dimensions to angled plan consistently? It seems that unless the dimension is orthogonal to the page, the dimensions will not align consistently. I note that this topic has come up in the past, but there does not seem to have been a resolution. Any help will be much appreciated.
you can “gesture” outwards perpendicular to the rotated line you dimension, like how the line on the left side is dimensioned:
If the snap points are on different linework that are offset, like on the right side, you will need some helplines, support geometry, you cannot drag out that same dimension from there.
That’s useful - I didn’t know that little Alt trick 
That looks great in Parallel Projection but a little bit wrong in Perspective.
In perspective it would be nice if the dimension line was in perspective as well 
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Yes. It’s a feature that has been requested. It’s a huge challenge to make it work correctly but hopefully it’ll be introduced one day.
I usually don’t need to add dimensions to perspective views but when I do, I make them manually. It’s not as easy as using the Dimension tool but it can be done.
Thanks. It’s the offset points that are the problem for me. Might be a good improvement in Layout to add a command that would allow you to hold a dimension in a specific direction while selecting offset points.
Shift to constrain dimensioning direction could be nice. If you need that specific dimension you can always rotate the whole thing to align with page horisontal/vertical, and rotate back afterwards. I just make some linework in sketchup, onto a help-tag that I later hide, to get past this.
Its not like this is very easy in other cad either. In autocad you would change axis before that kind of dimensioning. ( at least in my old version…). That can be done in sketchup also, so maybe just dimension those things in sketchup instead 
Both good work arounds. I did the rotation.
allright. I now realise what I said here a month ago is wrong… You can dimension a complex rotated object, and also make the sum dimension.
If you do one dimension at a time, you need to make sure both endpoints of your dimensioning is from that same offset, basically normally dimensioning a line.
However: Continuous dimensioning will understand the direction you want do drag out, and what to dimension.
Also: Making a sum dimension is possible, from just reconnecting a different dimensioning object that is rotated correctly.
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