Missing lines for curved objects in elevation AC09

[Eduardo Rolon]

Need help with this:
For a project I am working on I had to create some curved elements (walls and object) after drawing them in plan and switching to elevation I noticed that the elevation was missing some lines from the shape (see attached). The object was created using profiler and the result in the elevation is totally unacceptable. I tried recreating the object, changing all the elevation settings, changing the scale and I can't get AC to draw the complete shape. For curved walls the same thing happens when the curve is 180 dg or more with the added problem that if it is a 360 wall then you get an extra profile line (in the part that is drawn) that does not clean up, the separation between the lines is usually 1/16". I also tried changing the 2d redraw options to full model and turning OpenGl for 2d on. I also created a circular slab and used magic wand to create the walls which gave me the same effect and playing with the magic wand settings did not help nor just drawing the wall by itself.

What am I doing wrong?

[Eduardo Rolon]

And the problem with the section...

[Erika Epstein]

Eduardo,
I don't think it is you. I've experienced similar problems with profiler created objects that are revolved 360 degrees.
Something in the script as when you open the library part and look at the elevation the problem is there.

Perhaps someone with more GDL experience can post the code correction?

[Eduardo Rolon]

The strange thing is that the same thing happens if you draw a circular wall and you have a second story...

[Anonymous]

Very interesting...

While I was not able to duplicate the problem with the curved walls, there is definitely a problem with Profiler.

In Section 1. (See picture) which cuts through the origin of the arc you will get this error unless you comment out the line

GDL wrote:
IF angle=360 AND NOT(issolid) THEN angle=359.9

The same is true in the two sections labeled 2; at 90 and 45 degrees to the origin of the arc.

In section 3, which is at any angle not divisible by 45, nothing shows up in the section window.

And in any case, a section drawn through the center of this object should show the interior surfaces of the object (where 2 dotted blue lines are labeled 4) which is hollow.

Woody

[Anonymous]

Sorry... mislabeled one of the Section 2's and the section 3

Woody

[Eduardo Rolon]

Well that means I will have to try to create the shape in SketchUp and then import the object to see how it goes. As to the problem with the walls if they are not repeated on a second story then there is no problem. The problem occurs when there are curved wall stacked one atop the other (first floor and second floor), it also depends where the elevation is located in relation to the point the wall was started, and lastly if the curve angle is more than 180 dgs.

[Anonymous]

You could also try your hand at GDL. This is a fairly simple element.

Draw the profile you want with a slab and drag it into the 3D window of the object editor to get the nodes you want. You can also drag a fill into the 2D editor window (and then copy it to the 3D) to get mask values that are more consistent with the ROTATE statement.

Change the cPRISM_ to ROTATE and adjust the values accordingly. I don't have time right now to go into the details. Maybe someone else can pick up the ball here.

[Eduardo Rolon]

Thanks for the reply Mathew, but two things bother me and should be pointed out:
1) profiler should not have this problem and though there are workarounds the problem has to be documented. As you wrote it is a simple object.
2) About the problems with the circular walls, I think that one is more critical since the workarounds are more difficult

[Anonymous]

ejrolon wrote:
2) About the problems with the circular walls, I think that one is more critical since the workarounds are more difficult

I don't seem to have an answer for the profile proble but can offer some observations about circular walls and sect/elev cuts

1. RE: the horizontal line or "the line that is not supposed to be there" happens when the reference line of the wall is not in the same plane as the face of the slab. it appears that your reference line is probably on the inside face of the wall.

2. RE: the vertical line or "the line that is not supposed to be there" is a funny little quirk in curved walls. If you rotate the curved walls not to have their end points at 0,90,180 or 270 degrees the line will hide itself.

3. RE: the missing lines seem to happen when your wall use composites. I've had this problem on bldg sections. the only thing I could do to get the proper cut lines to show up is make sure the walls did not have a composite fill - obviously not an ideal solution.