El 26/05/2011 16:30, Jody Garnett escribió:
Ah.
The information is I think in the shapefile header; we do parse that
shapefile header information into the
AttributeDescriptor/AttributeType information (length as you found is
captured as a filter "restriction"). I am not sure how much detail is
provided in the shapefile format about floating point precision.
Time to look at the code; and stop in a debugger and see what you can
find.
That is just what I wanted to avoid, thats why I asked in this list.
I will look into the geotools source code then.
Thanks for answering so fast,
Best,
Jose
--
Jody Garnett
On Friday, 27 May 2011 at 12:19 AM, Jose C. Martinez-Llario wrote:
Hi Jody,
Sorry I didnt explain myself in a good way.
nono..Im not asking about how i can get a field value from a
shapefile..of course im not going to ask that with allthe geotools
documentation on the internet.
Lets say I have a field called 'field1' and it has 20 digits of
precision and 8 digits of scale (decimal digits).
How can I know the precision and scale of any real shapefile field
and how can I set up this values when I want to setup a new sschema
with these fields?
El 26/05/2011 16:12, Jody Garnett escribió:
Bah this silly email program sends messages when I give up and close
an email.
Can I assume that scale is an attribute you are trying to access? I
am having a hard time answering your questions; as working with
fields of different types works well with GeoTools shapefile support.
You should be calling feature.getAttribute("scale") to access a
field called scale; the result will be a number if that is what it
is saved as.
Examples of working with feature content here:
- http://docs.geotools.org/latest/userguide/library/main/feature.html
--
Jody Garnett
On Friday, 27 May 2011 at 12:09 AM, Jody Garnett wrote:
Can I assume
--
Jody Garnett
On Thursday, 26 May 2011 at 11:40 PM, Jose C. Martinez-Llario wrote:
Dear GeoTools users,
I am trying to read a shape file using geotools and everything is
working well.
I couldnt find out how to read the scale from a real field though.
For reading the precision I get the field restricctions and then I
parsed each element on the list (filter.toString()) looking for the
string 'length'.
It is working for getting the length which makes me understand the
precision but I coudlnt find out how to get the scale.
Im sure this is not the right procedure even for getting the lenght.
I can not find out the opposite problem either. I mean how to write a
shape file and specify the precision and scale for a real shape
file field.
So I would like to know:
1) How I can get the precision and scale from an existing shape
file field.
2) How I can set up the precision and scale when Im writing a new
shape
file.
Any help will be very appreciated.
Cheers,
Jose
--
------------------------------
José Carlos Martínez Llario
Producción Cartográfica y SIG
Dpto. Ingeniería Cartográfica, Geodesia y Fotogrametría
Universidad Politécnica de Valencia
E-mail: [email protected] <mailto:[email protected]>
Telf: 963877007 ext. 75599
------------------------------
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------------------------------
José Carlos Martínez Llario
Producción Cartográfica y SIG
Dpto. Ingeniería Cartográfica, Geodesia y Fotogrametría
Universidad Politécnica de Valencia
E-mail:[email protected] <mailto:[email protected]>
Telf: 963877007 ext. 75599
------------------------------
------------------------------------------------------------------------------
vRanger cuts backup time in half-while increasing security.
With the market-leading solution for virtual backup and recovery,
you get blazing-fast, flexible, and affordable data protection.
Download your free trial now.
http://p.sf.net/sfu/quest-d2dcopy1
_______________________________________________
Geotools-gt2-users mailing list
[email protected]
<mailto:[email protected]>
https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
--
------------------------------
José Carlos Martínez Llario
Producción Cartográfica y SIG
Dpto. Ingeniería Cartográfica, Geodesia y Fotogrametría
Universidad Politécnica de Valencia
E-mail: [email protected]
Telf: 963877007 ext. 75599
------------------------------
------------------------------------------------------------------------------
vRanger cuts backup time in half-while increasing security.
With the market-leading solution for virtual backup and recovery,
you get blazing-fast, flexible, and affordable data protection.
Download your free trial now.
http://p.sf.net/sfu/quest-d2dcopy1
_______________________________________________
Geotools-gt2-users mailing list
[email protected]
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