topographer,
The whole exercise of re-calculating point out of your cross-section
is somewhat pointless.
Normally, the program you used to creates the cross-sections started
from points and calculated the offset distance and elevation.
So the proper way to do it would be to save your points as you creates
the cross-sections.
Now let says that for some reasons you lost your alignment drawing and
the file containing your original points and you want to recreates the alignment
and the point.
To do this, each cross section should have as the first line in each file, the chainage and the
coordinates of the center point and the orientation of the section. All the offsets and distances
would be kept in the following lines.
This way you would need nothing else to re-calculate your points. If you go back
to a project two years down the line, your alignment can be reconstructed from
the cross-section files only.
Another question, although you are not very good at answering, Why don't you
named your file in a meaningful way, like including the chainage in the name of the file ?
As for the correctness of file A13, I cannot check as the alignment drawing you gave us
does not show that one. So even If I had the chainage of section A13, I cannot calculate the points.
ymg
