Do you mean how you would find the length/width/height of the object after you have scaled it? To do that, simply find the distance from the 0,0,0 point for the vertices that are at the outer edges of the object. Now subtract to find the length, height, width of the object. If that wasn't clear, I understand. Just let me know and I'll take a few screenshots for you.
In Gmax at th e top of the right hand side rollout, look for an Icon called Helpers. Click it.
Then select TAPE. Be in a standard Left/Right/Front/Back View then click and drag the tape from one edge to another. You will see the length in the rollout at right.
Hi When I use the helpers tool to select the size it shows a large number (about 100) I am trying to scale down a 737-400 tail and I need to see if. eg. the tail is about 11m high (the actual hight in real life). Thanks Giles.
Okay. In sub-object selection, go to "vertex" and then select the vertex that is highest on the tail (ie: the very tip) then move it up a little.
Now press Ctrl+Z. This should move it directly back to where it was previously.
Now press Ctrl+A. This will repeat the move you just made. Note which number in the XYZ coordinate boxes changes.
Press Ctrl+Z again, and write down the number that changed.
Repeat the above for the vertex at the very bottom of the tail. Write down the number, and then subtract it from the first number you wrote down. This will give you the current height.
Now begin scaling s-l-o-w-l-y. Measure just as you did in the steps above occasionally to see how close you are.
This is a VERY sloppy and hard way to do it, but I've gotten very proficient at it, and I don't even use the measuring tools anymore.