TurboCAD Forums

The Ultimate Resource for TurboCAD Knowledge

Register
 
When replying to a specific statement be sure to quote the previous post.

hidden 3D polylines... where, how?
Read 2898 times
* October 29, 2009, 01:24:58 AM
Hi,

I'm doing some haz. gas pipe runs for one of my clients. Working form old hard copy isometric drawings, I figured 3D polylines way the best way to get this done... e.g.

start point
tab
displacement x or y or z
tab
displacement x or y or z
tab
displacement x or y or z
tab
Alt-F

... until I go to hidden view and realise that the 3D polylines are not hiding behind columns, gear etc.

I cannot find any switch to make them hide.


Please reveal required switch or suggest other preferable method to getting these pipe centrelines in and hiding.

Thanks,

davek

Logged
David Knowling
Windows 7 Pro 64, TC16.2.54.0


* October 29, 2009, 03:09:38 AM
#1
View|Camera|Properties|Hidden Line.  Uncheck "nonrenderable objects".

Logged


* October 29, 2009, 03:42:54 AM
#2
That makes them disappear altogether... I still want to see them excpet when there running behind some 3D object.

Logged
David Knowling
Windows 7 Pro 64, TC16.2.54.0


* October 29, 2009, 04:45:40 AM
#3
.....maybe utilize Layers.

Logged


October 29, 2009, 04:47:16 AM
#4
A 3D polyline is still only a line, you'll need to create a 3D object from it before it acts as you require in hidden line or rendered views. Try using a profile sweep or use pipe tool.

Logged
Julian

TC18 / 38.5 Platinum, AL5. XP, Core2 Duo E6750 OC'd 3.0Ghz, Render test: 3mins 3sec.


* October 29, 2009, 04:51:15 AM
#5
Or give them a thickness in properties.

Logged


October 29, 2009, 04:55:38 AM
#6
Murray, I don't see how to apply thickness to 3D polyline

Logged
Julian

TC18 / 38.5 Platinum, AL5. XP, Core2 Duo E6750 OC'd 3.0Ghz, Render test: 3mins 3sec.


* October 29, 2009, 05:32:28 AM
#7
Brainfade, Julian.  It just occurred to me that they weren't closed.  Or 2D.
« Last Edit: October 29, 2009, 05:34:19 AM by murray dickinson »

Logged


October 29, 2009, 05:47:04 AM
#8
I still see 3D polyline as a primitive/undeveloped tool as most of the 2D polyline options are unavailable, eg, you still can't apply thickess, you can't create or node edit an arc into it....

Logged
Julian

TC18 / 38.5 Platinum, AL5. XP, Core2 Duo E6750 OC'd 3.0Ghz, Render test: 3mins 3sec.


* October 29, 2009, 06:47:06 AM
#9
I agree with you Julian.

There's a mismatch. 3D polylines are the simplest lineform to work in 3D (along each of the three axes), but are missing the thickness property that enables a 2D line or polyline to hide like a solid.

I couldn't be the first to bring this up?
I suppose I add this to the wishlist.


... in the meantime, I suppose I go back to 'thick' 2D polyines and changing the UCS every couple of steps.

or

sweep a circle along the 3D polyline and switch the 3D polyline layer off at print time.

Any other suggestions?


Thanks,

davedbk

Logged
David Knowling
Windows 7 Pro 64, TC16.2.54.0