[gdal-dev] OFTReal values truncated to integer

[Even Rouault]

Selon diegogb <diego.gnesi at gmail.com>:

> I have a problem on storing double values on shapefiles fields.
> If I execute this code:
>
> //...
> OGRFieldDefn zField("Elev", OFTReal);
> layer->CreateField(&zField);
> //...
> OGRFeature *pointFeature = OGRFeature::CreateFeature(layer->GetLayerDefn());
> OGRPoint thePoint;
> thePoint.setX(1);
> thePoint.setY(1);
> thePoint.setZ(1);
> pointFeature->SetGeometry(&thePoint);
> double myVal = 1.3;
> pointFeature->SetField("Elev", myVal);
> layer->CreateFeature(pointFeature);
> OGRFeature::DestroyFeature(pointFeature);
> // Close data source etc.
>
> When I open with Quantum GIS the file created by my program, the field
> "Elev" does not contains 1.3 but 1. Why?!?
> If i edit the file on QGIS, i can write 1.3 instead of 1, so the field type
> is real and not integer...
> I'm a GDAL newbie, but the code is so simple that i can't figure where is
> the problem!

Nothing strikes me as wrong in your code snippet. I'm pretty sure this should
work. Perhaps it is an issue with your locale setting, for example if the
decimal separator is comma instead of point. Perhaps you could open the .dbf
file with an hexadecimal editor and look for your 1.3 value in it (it should be
readable in ASCII characters after the binary header).

>
> Thanks.
>
> --
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>
http://osgeo-org.1560.n6.nabble.com/OFTReal-values-truncated-to-integer-tp4933952p4933952.html
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