[Qgis-user] txt to shp

[Pierre Chevalier Géologue]

Giovanni Manghi claviota:
> You have to save your data in a real CSV format, 
Hm, almost: *real* CSV files are Comma-Separated-Values (smells like a 
troll...;)).

> see attached file. 
This one looks rather like the excel vision of what a CSV file is...

> It will be imported with no problems in QGIS.
>   
Yes, as long as you specify the right separator.

Actually, you can also open the first version of your file (it was 
created by excel, wasn't it?), if it is a tabulation-separated ascii 
file, then you just mention \t as the separator when you import it into 
qgis.

But your data looks a lot like a mag survey, doesn't it? in this case, 
it is often better, instead of treating a bunch of values, to generate a 
raster by interpolation. Instead of dealing with almost-evenly spaced 
data points, you get a regularly-spaced grid, with the values in each 
cell. Grass is excellent for these kinds of things. And it works well 
with qgis as a sort of front-end. It is very fast and easy to display 
colour mapping of your data, for instance, assigning colour ramps to 
data values.

A+
Pierre

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