[Qgis-user] Problem with decimal places in coordinates

[Nicolas Cadieux]

Hi,
There are 2 problems.  The first is that not all number can bit 
represented on a base 2 representation (we normally use base 10 for 
finances and banking).   Wiki that and you will find it.  It's normal 
for things to change a bit.  The second problem is the number of 
decimals in the field.  When you create a shp file, you can specify the 
length of the decimal place.  If it's there, you can probably use the 
field calculator to create a new field with your specified length and 
copy the data from 1 field to the other.   (It may be too much trouble 
for a non significant error if that is the case.) There may be a plugin 
that may change number of decimal.  (If you do, backup your original). I 
may help if you specify the type of collumn you are importing in the 
csv.  This may help.

http://anitagraser.com/2011/03/07/how-to-specify-data-types-of-csv-columns-for-use-in-qgis/ 

Cheers!
Nicolas


Le 2016-01-14 09:17, Giacomo Minotti [via OSGeo.org] a écrit :
> Good morning friends
> I have a big problem.
>
> When I import in qgis ambient a .csv file with known coordinates at a 
> given number of decimal places, and I create a SHP file the decimal 
> places of my coordinates change.
>
> For example: in .csv file a coordinate input type is X 15.67; when I 
> save as .shp file, the coordinate becomes 15.6699999 ... (with 15 
> decimal places and not 2).
>
> It there any methot to mantain the same number of decimal places?
> Is it possible to choose the number of decimal places when I save a 
> .csv file to .shp file?
>
> Thanks
> Domenico
>
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