Do what??!!! Every breakline SHOULD have a corresponding tin line on top of it. Evidently you have the "simplify the surface" turned on. ALL man-made features should have a 3d poly breakline created along with the 2d poly in your F2F set up. A correct tin is based on the breaklines and the coordinate file. Leave either one out and you get squirrley contours.
No, it works on plain jane topos......if you know what you are doing. 😛
Here's the VERY bottom line, anyone that says you do not need breaklines or that it is faster to flip tin edges simply does not know how to contour, nor do they know what they are talking about. Just another case of people doing what they have figured out - right, wrong or indifferent. These are the same people that see no advantage in spending a few dollars on a training program.
All you have to do is mess up one surface that is used for a cut/fill comp and the resulting court costs will far exceed what a little training would have cost.
Amen!
:good:
I agree but the drafter was 1/2 owner. Trying to suggest that caused grief. [sarcasm]He was 1/2 owner and knew more about contours than me[/sarcasm]. I finally gave up trying. I'm very glad to be moving on to a company that understands your point.
Good!
I was thinking this was the job you just annouced you took a few days ago....
There is an old fart who sits next to me in the office; all this guy does is whine and complain and ramble on about breaklines and bad coding....
Somebody should buy him a drink. Wait no they shouldn't...
The purpose of breaklines is to be a huge shortcut inthe need to flip triangles by not allowing those triangles to cross a feature affecting contours in the first place.
If those knuckleheads take the time to analyze the results of their flipping triangles (assuming they flipped them correctly), they would find that the breaklines that they would have made in the field follow a series of edges of their resultant pattern of triangles, and they could have saved several hours of effort.
I suspect that this aversion to using breaklines goes back to the early versions of data collection that did field linework. Some of them often came up with some really odd point connections due to the complex coding required, or sometimes just due to some glitch in the software.
Someone needs to show that guy that the software has come a long way in 20 years.
I used to work for a guy that wrote every topo shot in the field book, and never noted break lines. Then we would plot all the shots with a protractor and scale, and interpolate. I kept telling him I could produce contours in minutes with CAD. I don't think he believed me. His topos were still half the price of the other surveyors. It was a painful time in my life.
I got'cher whinning rat cheer Sasquatch!!
College Gradgiate and cannot unnerstand a very simple code system!! Buy him books and buy him books and what does he do? Chucks it all and heads out to be a "Gentleman Farmer"!! His "Sugar Daddy" is his granddaddy and in a very weak moment and amidst failing vision, the old gentleman hands over 200 acres of Mississippi bottom land. I think he thought he was giving it to that cute blonde pole dancer down the road, but now the deed is done!! :excruciating:
Must have been an older guy who has never been comfortable with computers. The first few topos I drafted were done just that way, although the notes would have had an indication of what connects to what to facilitate proper drafting.
That practice didn't come about as a result of linework in a DC, but linework in a DC came about as the electronic evolution of translating good notekeeping automatically to basic drafting work. It's been one of the best advances in mapping productivity to happen during my career.
Hey hey hey....
I have to admit that I do love surveying and I know that I will miss it.
But, theres always a chance that I go broke. If/when I do, I expect to be hired back as a rodman. No questions asked.....
I'll let you be my "office beatch". 😛
Exactly!
When I used to train guys to collect topo data, I used to tell them that shot were to be taken at the cornrs of the triangles and along the breaklines. The only way to really understand that is to process your own data.
