In other DTM software, there are tools to allow you to select a dagonal leg of two adjacent triangles, formed between four points, and to flip the diagonal to the other two corner points.
I could have sworn that I read in an InRoads Readme that such a tool was now available in InRoads, but I cannot find any reference to such a tool.
I know I can edit breaklines to do this, but this tool is simple and quick. The same cannot be said about adding and possibly breaking up breaklines to accomplish the same thing.
I started flipping in a copied surface and displayed the before and after triangles in the same file with different colors. Then added new breaklines over the flipped edges.
Still, the argument against flipping triangles was always that the triangles are controlled by Delancy aor Delany or whatever, plus breaklines.
So I say , if a flipped face needs to break one breakline and create a new, better that it do that or warn us and let us say yay or nay.
I also found that a new breakline created to preserve a flipped face can effect surrounding triangles, causing nearby triagles to change - somtimes in undesirable ways.
In Land Desktop, apparently the 3D lines drawn in the file become part of the surface definition and must be kept to preserve flipped faces.Apparently there is no easy fix.
Charles (Chuck) Rheault CADD Manager
MDOT State Highway Administration