[gdal-dev] OGR precision vs Scale and DateTime values not set

[Clay, Bruce]

There seems to be a difference in the way ESRI uses precision and scale
to that of OGR.  I don't know which is right.  I am using the c#
libraries include in the FWTools.2.0.3. 

 

OGR does not appear to have a data type of Double when displayed in
ArcMap.  The stored attribute value appear correct but the parameters
are different

I defined the double field as:

 

fieldDef = new FieldDefn("LATITUDE", FieldType.OFTReal);

fieldDef.SetWidth(8);

fieldDef.SetPrecision(38);

 

and ArcMap shows Type = Float, Length = 8, Precision = 7, and Scale = 38

 

Also the DateTime fields are not getting set.  If I use the
DisplayFeature method in the c# createData.cs example, the date time
fields appear to be set properly (2006/10/10 9:00:00) but is I use
ogrinfo -al the the date fields are not set.

 

I have defined them as follows:

 

fieldDef = new FieldDefn("DATE_TIME", FieldType.OFTDateTime);

fieldDef.SetWidth(36);

fieldDef.SetPrecision(0);

 

ArcMap shows Type = Date Length = 8, Precision = 0; scale = 0

 

And I set the value with:

 

fieldIndex = featureDef.GetFieldIndex(shapeFieldList[3].fieldName);

if (fieldIndex >= 0)

{

feature.SetField(fieldIndex, minDate.Year, minDate.Month, minDate.Day,

minDate.Hour, minDate.Minute, minDate.Second, 0);

}

 

I also tried:

feature.SetField(fieldIndex, minDate.ToString("yyyy-MM-dd HH:mm:ss"));

 

but it didn't work either

 

 

Any thoughts as to what I am doing wrong would be greatly appreciated.

 

Bruce




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