Wall Breaklines

[Anonymous]

I am having a problem with my Surface not cutting to the exact Wall Breaklines that I have drawn..The problem areas are the vertical wall to the north in the drawing. Specifically the vertical 90 corners. I have attached my file. Thank you.

[AllenJessup]

I haven't looked at your drawing but there can be no completely vertical walls. There must be at least a minimal batter, even just .01. I don't have problems with 90° corners as long as no breakline fall exactly above another.

Allen

[Anonymous]

Yeah, I understand but I thought by using the Break line command within the Surface palate, it created a slight offset? And it created a slightly off from vertical wall?

[AllenJessup]

Yes. If you create it as a Wall Breakline or use the Stepped Offset command. I'll see if I can take a look at your drawing in the morning.

Allen

[Anonymous]

Thank you..

[AllenJessup]

OK. I took a quick look. The breaklines don't have any offset. But that doesn't seem to be the trouble. It might be taken care of behind the sceens by it being a Wall breakline. I'd think you'd solve the problem by making the breaklines continuous instead of broken.

Allen

[Anonymous]

Okay, I've done what you have suggested. Which I thought was a pretty good idea. But no luck. See attached.

[Joe-Bouza]

Where is the problem? pretty hard to tell from the drawing without more direction?

[Anonymous]

The problem is the along the Northern Vertical wall running west to the east. If you "Spin" the drawing you should be able to see the area. You should be able to see that the surface does not follow the pink Polylines that show teh base of the wall..

[Joe-Bouza]

I'm pretty dense, you say north, but you have two edges to the NW & NE, then you say spin (spin what? from north to south?), and pink lines. I'm looking at a drawing with Red, White, magenta and yellow lines, no pink.

the tin lines are not jumping over any lines except the yellow ones. Where is the problem? maybe a screen grab with crayon marking the trouble spot

[Anonymous]

I meant spin the entire drawing.. Anyways the lines are magenta (Pink). See attached screen shot. You will see that the surface triangles does not follow the vertical wall location, as shown by the Magenta lines. Mainly in the corners, the rest of the polyline the surface follows..

[jmayo-EE]

Perhaps the issue is the crossing breaklines?

I marked a few crossings with circles.

[Anonymous]

I could see that might be an issue if I was actually using those lines for the breakline, but I am actually using the lower magenta polyline as my wall breakline. And then defining the elevation of top of wall by specifing each individual elevation at the prompt. So I don't think the above lines are the problem. But I will tidy them up and see if anything happens.

[Joe-Bouza]

Alan & John are correct

you cannot have break lines at the same x,y with different z value

[AllenJessup]

OK. I see a comparitively flat surface with 5 depressions. What's it suppose to look like.

Allen

[Joe-Bouza]

like this when you get rid of the common x,y it funny Alan I had this screen grab before I saw yours

[Anonymous]

Take a look at an earlier post by Allan, he is saying "OK. I took a quick look. The breaklines don't have any offset. But that doesn't seem to be the trouble. It might be taken care of behind the sceens by it being a Wall breakline. I'd think you'd solve the problem by making the breaklines continuous instead of broken". I created the walls by using the Breakline command, which i believe creates it's own breakline slightly offset from the original breakline..

[Anonymous]

And if this is the case and I need to seperate breaklines at two slightly different location, why is the center point of the North wall working correctly? As shown on your snapshot?

[AllenJessup]

I think a lot has to do with formation.

Allen Jessup

although I'm still guessing at the final form.

[Anonymous]

Allen, Hard to describe but the Furthest Eastern wall is cutting correctly. It follows the slope of the above wall and flat of the lower floor and the walls are verticle and the top of wall is at the correct elevation. See attached.