[GRASS-user] v.in.lines creating an empty vector?

GRASS GRASS user
1

Hi,

I have a .csv file with a bunch (thousands) of pairwise points which I would like import and connect through separate lines. I have formatted it as is shown in the manual but it seems to create only an empty vector. I have tried the example that is in the manual as well but that doesn't seem to work either. Here is what I tried:

v.in.lines in=/Users/Me/Desktop/testline.csv out=test fs=,

an example of what my file looks like:

570650,5054903
571048,5054592
NaN,NaN
570650,5054903
570699,5055007
NaN,NaN
570650,5054903
570373,5055017
NaN,NaN
570650,5054903
570563,5055085
NaN,NaN
570650,5054903
558489,5047136
NaN,NaN
571048,5054592
570699,5055007

Is there some other way I can achieve this since v.in.lines does not seem to be working for me (or something obvious that I'm doing wrong)?

Any help would be greatly appreciated! Thank you!!

Michelle

2

Michelle wrote:

I have a .csv file with a bunch (thousands) of pairwise
points which I would like import and connect through
separate lines. I have formatted it as is shown in the
manual but it seems to create only an empty vector. I have
tried the example that is in the manual as well but that
doesn't seem to work either. Here is what I tried:

v.in.lines in=/Users/Me/Desktop/testline.csv out=test fs=,

an example of what my file looks like:

570650,5054903
571048,5054592
NaN,NaN
570650,5054903
570699,5055007
NaN,NaN
570650,5054903
570373,5055017
NaN,NaN
570650,5054903
570563,5055085
NaN,NaN
570650,5054903
558489,5047136
NaN,NaN
571048,5054592
570699,5055007

Is there some other way I can achieve this since v.in.lines
does not seem to be working for me (or something obvious
that I'm doing wrong)?

it's due to an awk bug in v.in.mapgen, which v.in.lines uses.
   $1~/\d*\.\d*/ { printf(" %.8f %.8f %.8f\n", $1, $2, $3) ; ++R }

I'll work on a fix, but for now simply add decimal points to the
numbers to work around it:

570699.,5055007.

thanks for pointing this out.

Hamish