Could some one tell me how to fix this?

[1019245175]

I projected a surface on a grid mesh ,but there was wrong."1. Points do not form a regular and/or ortogonal grid"
This is my input data to dfImportPoints.
{0}
0. {-1.601445, 1.949776, 3.543426}

1. {12.398555, 1.949776, 3.543425}
2. {-1.601445, 15.949776, 3.543433}
3. {12.398555, 15.949776, 3.543432}

[worbit]

hi
please excuse the late reply. could you describe in some more detail, what exactly fails? what do you mean with "project a surface on a grid mesh"? can you post a screenshot of the definition or point me to a *.gh def?
thank you and all the best
mathias