3D viewport section picking up all drawings in the same plane, why ?

[John Whyte]

Ive got a design layer like this (each blue blob is a room when zoomed in)

I make my 3D section viewport as the video below (and then wait for vwx to create the section)

[video:youtube]

and i end up with my viewport in the sheetlayer looking like this as you can see it contains not only my section (far left) but also sections of all the other rooms in that plane in my design layer

Is there a way i can just get the section of the room i want (by somehow specifying were the section ends so that it wont pick up the other rooms)

Edited February 23, 2014 by John Whyte

[Tamsin Slatter]

Select the Viewport and click Advanced Properties. Change the Extents to "Limited by Section Line Length".

Hope that helps...

[John Whyte]

Thanks Tamsin,

Any idea with this one - for the most part what you said above works but in some instances i still get the drawings behind showing up.

Ive found that if i use 'depth range - finite' (and set a value) that it solves the problem but shouldnt "Limited by Section Line Length" solve this problem, why sometimes do i have to use 'depth range - finite' and sometimes i dont ?