Hello Thanks a lot for your answers. It solved my problem. If I have a zero length leg at the beginning of each centerline, this is because i am importing all the data from visual topo files, and in vtopo, the first line is always a zero length leg to get the LRUD of the fist point. The strange thing is that I have that for normal and topofil data, and it is working very well. I do not understand why it create a metapost error when we use diving data. And last thing about diving data : when we do a survey in a sump, we have 2 ways to do it : 1) we use a tape, so the length is given between each station. 2) We use a line that is marked every 2 to 5 m, and the length that we read at each station is the length from the beginning of the sump/underwater survey. In that case, it works as a topofil/counter. However, it is not allowed in diving data declaration. It could be interesting to allow it this kind of data. Cheers, Xavier Le 19 oct. 2011 à 10:51, Andrew Atkinson a écrit :
Hello
So station 1_25 is the same as 4_1 and you have connected them together with a zero length leg. Not sure why this does not work, but if you replace
1_25 4_1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
with
equate 1_25 4_1
it gets rid of the stream of errors, I also find equates easier to read than zero length legs, especially as you have a cross section of 0 which seems unlikely.
Andrew
On 19/10/11 09:13, Xavier Robert wrote:
Hi all,
I am currently trying to draw a map with diving data. But she I compile, I receive a metapost error. This probably because of the structure of my data, but even after reading The THbook and the Survex tutorial, I do not understand where/why. Can someone give me any advise ?
I attach to this emai a zip file that contain : - a simple part of my diving data, with its thconfig file - The associated log file.
Thanks a lot !
Xav
-- Xavier Robert Chercheur/Researcher CR2 - IRD ISTerre - Maison des Géosciences 1381 rue de la Piscine - BP 53 38041 Grenoble Cedex 09 France
Phone : Fax : 33 (0)4 76 51 40 58
xavier.robert01@gmail.com <mailto:xavier.robert01@gmail.com>
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