#DELTACAD FILL POLYGON HOW TO#

It was a closed polygon already so I wasn't sure what the problem was. I recreated the magenta boundary which had been giving me the error message. I think some here were confused that your proposed surface includes what looks to me like existing ground data. If you need to show both propsed and existing as a single surface, you can clip the existing at the boundary line with the proposed surface shown. Create your closed polyline at the daylight line, and use it as the outer boundary for both the proposed and comparison cut/fill volume surface.

I've had the same error before too! Usually the polyline isn't closed or has double vertices.įor the future, you might consider creating your proposed surface only to the daylight line. You need to create a closed polyline from scratch, the error you are receiving tells you what is wrong with your current magenta boundary. I really need to figure this out and I haven't found any help in the User Guide or YouTube tutorials. Or perhaps I need to make a breakline out of the magenta line so that grading will not happen across the magenta line. The problem with that is, I believe, to compare two surfaces they need to be the same size/dimensions. That way, it would be left out of grade calculations. One thought I had was that I might need to create a new Outer Boundary that hides the area that is not changing. You all seem very experienced, and I apologize if this does not have an exciting resolution! I'm new to Civil 3D so this can't possibly be an advanced question. This is probably a task people perform all the time - you have a site where grading is changing on part of it and staying the same on another part. I do believe this is a very simple problem. I cannot show that to the homeowner because he'll think we're planning to move soil there, and we're not. The Proposed surface is correct, but it's the Cut/Fill surface that is moving soil around outside of the magenta line. Inside the magenta line, they are changing. All the spot elevations outside the magenta line are staying exactly the same. To address mathewk's sentence, I don't want to calculate volumes for that area because. Outside of the magenta line grade is not changing. A house has been put in the middle of the property and the grade is changing only near the house. Yes, the property exists inside and outside of the magenta line. 'Illegal (self-intersecting or non-closed) boundary polygon.' I took a guess and tried making the magenta line into a 'Non-destructive Outer Boundary' (which is what my property line currently is) but I got this error: I'm not changing the entire property, I'm only changing the grade inside of the magenta line. The entire surface is bounded by the property line. (The cut/fill does not need to balance to zero we expect to have to bring in soil from off-site). I want the computer to do the grade changes inside the magenta line. I do not want the cut/fill to happen outside of the magenta line. There is a magenta line over each surface. I've attached a jpg showing my existing and proposed surfaces and the 'volume surface' that shows Cut and Fill areas. The rest of the site needs to remain untouched.

#DELTACAD FILL POLYGON HOW TO#

'unless you create a specific boundary to include only the area you want.' That's exactly it! I want to know how to create a boundary to include only the area I want to have graded.

Deltacad fill polygon