Curved surfaces displayed as numerous lines

[stusic]

I was going through and see that at many times the model shows up through the viewport displaying these lines that run along a curved surface.
For example, I've modeled a steel angle and set up a view facing the flange. Well since the edges of the flange are filleted, there is a curve that faces you. When seeing this in the viewport, AutoCAD tries to draw this curve although it's not really a visible element; it's there, but there's no real way to define it.
I'd like AutoCAD to just ignore it and not try to display any of that curve. Is that possible? I would think since it's got to guess at some way to display it, maybe you could just "turn it off". I would think it would also help lower the calculations it's got to do while changing views, etc...
As always, thanks for any help.

Thanks!

Phillip

[jaberwok]

Hi Philip.
Try setting the variable DISPSILH to 1 (on).

It's also available through Tools\Options\Display\Show silhouettes in wireframe.

[stusic]

Thanks, but it didn't seem to have any effect. I regen'd and even restarted acad, but to no avail. Any other ideas??

[Maverick91]

What does HIDE do for you?

[stusic]

What does HIDE do for you?

That's mostly what I'm talking about since I am using the OBSCUREDCOLOR and OBSCUREDLTYPE variables. In any case, the problem is displayed in both hidden and wireframe views.

[jaberwok]

I'd guess that you used the acad command "hide". Try picking View/Shade/Hide and see if that makes a difference (it uses a different mechanism).

Or the other way round.

If you have used Shade/Hidden you need to either Zoom/Previous or Shade/2dwireframe before using Hide or you won't see the difference.

[stusic]

Okay, cool, making progress... Thanks, that worked; the bent round bar I have doesn't show up as a thousand triangles.

However, there is a catch. There's always a catch. Now, when I go to View>Hide, it does right, but only as long as I keep that exact same view on the screen. If I'm zoomed in really far and do the hide command, then pan or zoom-- even just a bit-- it goes back to the wireframe view. Any suggestions on this?

I'm so close, I can taste it...

Thanks,
Phillip

[Mike.Perry]

However, there is a catch. There's always a catch. Now, when I go to View>Hide, it does right, but only as long as I keep that exact same view on the screen. If I'm zoomed in really far and do the hide command, then pan or zoom-- even just a bit-- it goes back to the wireframe view. Any suggestions on this?Hi

You can not control this ( as far as I know, which means nothing ).

Why? - When using the Pan or Zoom commands, a Regen is performed when the operation is complete.

Have a good one, Mike

[jaberwok]

Okay, cool, making progress... Thanks, that worked; the bent round bar I have doesn't show up as a thousand triangles.

However, there is a catch. There's always a catch. Now, when I go to View>Hide, it does right, but only as long as I keep that exact same view on the screen. If I'm zoomed in really far and do the hide command, then pan or zoom-- even just a bit-- it goes back to the wireframe view. Any suggestions on this?

I'm so close, I can taste it...

Thanks,
Phillip

Yes, this applies to Hide but not to Shade (including Shade/Hidden) (if that helps at all).

[stusic]

Hi

You can not control this ( as far as I know, which means nothing ).

Why? - When using the Pan or Zoom commands, a Regen is performed when the operation is complete.

Have a good one, Mike

So just make sure I perform this before I plot?

[stusic]

Okay, after displaying it as a 2D wireframe, I set the "Shade Plot" property of the viewport to "Hidden". On the screen, it still showed it as 2D wireframe, but plotted exacto-trakto-ly right. Just like I want and I didn't even have to manually regen cause plotting already does that.

Sweet, I think I've just stepped onto the home stretch now...

Thanks Mike & John,

Phillip