topic Re: Missing Portions of Vectorial 3D Hatching in Modeling

Missing Portions of Vectorial 3D Hatching

Anonymous — Tue, 26 Aug 2008 17:54:47 GMT

Using Ac10, I have two Elevation views that have portions of Vectorial 3D Hatching missing. Any Help would be appreciated.

Re: Missing Portions of Vectorial 3D Hatching

Karl Ottenstein — Tue, 26 Aug 2008 19:10:00 GMT

A wild guess: two walls occupying the same physical space?

Karl

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Tue, 26 Aug 2008 19:34:53 GMT

Not so Wild, that was my first "guess" also. My only Wild guess is that is has to do with the walls having different start elevations. This house, like many has a step in the Floor plan. These steps are almost always present in the Pony level wall framing due to most of the constructi0n being on sloped lots. I still have not been able to quite get the grasp on the Floor Plan Cut Plane in these cases, while this may not be associated to the current problem. I have seen alot of strange things with the FPCP. Here is an old post.

Re: Missing Portions of Vectorial 3D Hatching

Link — Tue, 26 Aug 2008 21:45:26 GMT

I have seen this problem before and traced it back to the SEO.

Maybe, try undoing it or replacing the wall and doing the SEO again.

Cheers,
Link.

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Tue, 26 Aug 2008 22:56:34 GMT

The Lower wall has no SEO. I will try replacing the other.

Here is another section that has been having problems and I replaced the wall on this wall previously, and got no change.

Also strange thing with this file is that every time a create a Mesh to represent the Site, after some time the mesh is somehow removed from the file.

Re: Missing Portions of Vectorial 3D Hatching

Tom Krowka — Fri, 29 Aug 2008 17:40:43 GMT

Have had similar problems. Sometimes will reappear if reboot computer. Maybe video card gets tired.

Re: Missing Portions of Vectorial 3D Hatching

Laszlo Nagy — Mon, 01 Sep 2008 09:13:00 GMT

Tom wrote:
Have had similar problems. Sometimes will reappear if reboot computer. Maybe video card gets tired.

Or maybe video card gets overheated.

Only slightly related, but:
Recently, we had a computer in the office crashing, hanging, misbehaving, we were mostly working in AC so we thought it was related.
At the end it turned out the ventilation of the computer case was poor and the power supply of the computer was about to fail.
I think it is increasingly a valid point to check the computer case and power and ventilation if strange crashes and hangs occurs because today's CPU consume about 100 Watts, some of those top of the line graphics cards consume even more than that so this can be a problem if nothing else solves it.

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Mon, 01 Sep 2008 16:45:14 GMT

Jay.
I can tell from the content of your posts that you have way more
experience than I, (and I'm sure you have thought of it),upgrading to 12?
I just had so many more problems with my older video card and in general with 10/11 that when I got 12 I was absolutely overjoyed to see all kinds of things in AC worked better.
Laszlo; My video card can also overheat, on hot days and instantly I get a completely black screen. (scary).
Hopefully the new machine I'm just finishing up setting up won't do that!
Bier

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Tue, 02 Sep 2008 18:56:44 GMT

Opened the file on an older laptop (Sager 4780-V Notebook; 1G Ram and a ATI Radeon with 128 MB.) The "missing" Hatch is also happening on this computer. notice that the Missing Hatch is between Story levels.

So it is not the computer, at least I think. By the way my new system, Dell Precision M90 Laptop 4GB RAM with a Nvidia Quadro FX 2500M with 512 MB has a "choppy" Open GL view compared to the older Sager. This is mentioned here, if any care to comment.

Re: Missing Portions of Vectorial 3D Hatching

Scott Bulmer — Tue, 02 Sep 2008 19:14:19 GMT

Jay, does it make a difference if you substitute a different fill?

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Tue, 02 Sep 2008 20:42:57 GMT

Scott wrote:
Jay, does it make a difference if you substitute a different fill?

Scott, I had hoped your idea would work. It was a good idea, but did not work for this problem.

Re: Missing Portions of Vectorial 3D Hatching

Link — Tue, 02 Sep 2008 21:43:30 GMT

Why don't you upload a module of the problem area?

Cheers,
Link.

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Wed, 03 Sep 2008 01:42:16 GMT

Tried to create modules by floor level. Each of the Module files is larger than allowed. Zipped they are small, but the zip is not an allowed extension.

Re: Missing Portions of Vectorial 3D Hatching

Barry Kelly — Wed, 03 Sep 2008 01:47:58 GMT

I am guessing that the balustrade with the spheres on to is all one object?
If so try deleting it temporarily (or move it to a layer that is turned off) and then regenerate the elevation.

I have had this problem with 3D objects that sit in front of walls or other objects with a hatch pattern in the material of the surface.
That surface sometimes becomes invisible.
It has something to do with the way the object is scripted and appeared to be a problem when V10 arrived - never had it before that.

I had to re-script some of our objects to use grouping i.e. group the sphere and gropu the post, add the groups together and display the result.

I found if you select the wall you will see a bunch of lines radiating from the sphere that has something to do with the way the hatch fill is generated around the sphere. Zoom in close and you may see the perimeter of the fill crossing over on itself (self intersecting) which messes things up and the fill (and hence the wall) does not display.

I think I may have posted something here before - I'll see if I can find it.

Barry.

Re: Missing Portions of Vectorial 3D Hatching

Link — Wed, 03 Sep 2008 01:51:27 GMT

Jay wrote:
Tried to create modules by floor level. Each of the Module files is larger than allowed. Zipped they are small, but the zip is not an allowed extension.

Should be allowed. If you still want to upload it. May be time to upgrade to 12 mate.

Cheers,
Link.

Re: Missing Portions of Vectorial 3D Hatching

Barry Kelly — Wed, 03 Sep 2008 02:01:45 GMT

Barry wrote:
I think I may have posted something here before - I'll see if I can find it.
Barry.

This is the only related post I can find.

http://archicad-talk.graphisoft.com/viewtopic.php?t=20682&start=0&postdays=0&postorder=asc&highlight=object

The other I was thinking of must have been something I sent GS.
I'll see if I can dig anything up but it was quite some time ago.

Barry.

Re: Missing Portions of Vectorial 3D Hatching

Barry Kelly — Wed, 03 Sep 2008 02:51:28 GMT

I can't find any of the old information.
But I have managed to create a few images that explain what I think is the problem.
It is very intermittent and depends on the position of the objects.
I couldn't replicate the problem but these images will show what I mean about the fill possibly becoming corrupted (self intersecting).

The first is simply a sink and tap in front a wall that has a hatch pattern (just a light dotted hatch).
The selection shows how the elevation creates a fill out of the hatch with a hole cut around the sink and tap.

Re: Missing Portions of Vectorial 3D Hatching

Barry Kelly — Wed, 03 Sep 2008 02:53:44 GMT

The second image is zoomed in on the top of the tap that has a spherical top.
Notice how the perimeter zigs in and out of the facets on the sphere.
I think this is what can cause the problem.

Re: Missing Portions of Vectorial 3D Hatching

Barry Kelly — Wed, 03 Sep 2008 02:59:16 GMT

The third image is zoomed in on the top of the tap again but the tap has been re-scripted to use grouping to merger the handle, spherical top and the rest of the tap.

The perimeter of the polygon still goes into the facets but not as severely.
This hopefully stops the perimeter self intersecting and eliminating the problem.
At least it has solved the problem for me as I have not had any trouble since changing the scripts.

As I mentioned before it is very intermittent and depends on the position of the object in front of the hatch.
Sometimes just moving the object forwards, backwards or sideways can stop the problem.

Re: Missing Portions of Vectorial 3D Hatching

Anonymous — Wed, 03 Sep 2008 18:57:25 GMT

Barry wrote:
I am guessing that the balustrade with the spheres on to is all one object?

Actually the railing is a combination of three part. (Railing Vertical 10, Column & Sphere 10).

Barry wrote:
If so try deleting it temporarily (or move it to a layer that is turned off) and then regenerate the elevation.

We have the winner!

Decided to remove the Sphere object and model the tops of the rail posts with a combination of column and (3) Pyramid 10 with SEO. Kind of elaboraite solution. Any other Ideas out there?