Piping - Isometric dimensions to Elbows

[FProcp]

I need a way to add isometric dimensions from the elbow below? 

This is how standard piping isometric drawings are done, no need for a front view, top view, etc.

Just all dimensions on one isometric view.

I am creating piping drawings for a Power Station and want to dimension from the intersection of the centrelines of all the elbows on the pipe run (just like dimension 300 and 1282 in the picture below).

I've been able to add dim 300 & 1282 by using "Include Route Centerlines" BUT if there's piping created without a piping route this cannot be done.

I don't understand why I cannot get dimension A & B from the standard work features displayed on the elbow or dimension between two elbows just using these work features?

I need to do piping Isometric drawings urgently, Please...

[fakeru]

This can be easily done.

Before placing the dimension, right click and select annotation plane. I usually use "show all part work planes".

then I select the part, all the part's planes are visible and then I select the right plane for dimenion. At this moment don't place the dimension yet. You must select dimension type.

Select vertical or horizontal.

That should be all.

[FProcp]

Thank you, But can you do that with a 45° elbow?

[fakeru]

Like this?

[FProcp]

NO, Piping designers always dimension to the intersection points of the straight pipes.

I need a dimesnion from the ends of the elbow to the IP.

Or in a piping drawing from the IP of one elbow to the IP of the next elbow?

[fakeru]

Never did it before like this. I tried different things, but I managed to do it only in one way.

I had to make a 3d skecth which would replicate the axes and their intersection.

Then in idw Get Model Sketches and include the 3d sketch.

Then it's easy to place the desired dimensions, hide the sketch and put axes.

But another question would be if you can edit the elbows and how many of them do you have...

[FProcp]

Thank you again. That is very helpful.

I have many elbows I've made as iparts in contents center and would take time to fix.

At least I know it can be done