I'm having trouble while generating a TIN on a manually modified topography file.

I'm new to ArcGIS, but I have intensively tried to fix this bug, with no result.


As you can see, the bug deals about continuity in the generated model, the level curves seems to be logically disposed but the generated model proposes a big hole in the ground.

I noticed that the bug (unwanted changing of color = uncontinuity) was triggered by uncontinuous lines, probably created during the manual modification of this curves.

I tried to merge, union, dissolve ans unsplit the lines with no effect on the generated model.


Thus, I'm currently lost and I would like to know if anyone already noticed this bug, and maybe have a piece of solution to give me ?

I'm using on ArcGIS 10.1 for Desktop.

  • I didn't mentionned, I'm Working on ArcGis 10.1 ! – Clément Jul 21 '15 at 10:57
  • On the 2nd picture, your selected line has the same Z value as neighbouring lines. – dmh126 Jul 21 '15 at 10:58
  • Yes ! The elevation of the selected line is 100m, the elevation of the linked-line (the left side neighbourg) is the same (100m). But the two other neighbouring lines, top and bottom, are respectively 95m and 105m high. – Clément Jul 21 '15 at 11:31
  • I Noticed that some of the high changing were triggered by Z different cote between two adjacent lines. But i tried to fix this problem by modificating the table, and unfortunately it doesnt work. But at least I noticed were the problem is, when I worked I should have duplicated lines with different informations, creating a changing that seems to be interpretated sometimes as an altitude changing. Thank you for the clue ! – Clément Jul 21 '15 at 13:02

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