Writing multiple polygons to 1 .shp and creating attributes in .dbf

[yuanyee]

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Hi,
We need to do the following for a project:

- Write multiple polygons to 1 shapefile

- Also export a .dbf file along with the .shp file, and the .dbf should contain attributes associated with the polygon

I'm totally new to geotools. Would someone please tell me if this can be easily done using the geotools API?

I'm thinking of writing a Java program that would extract the polygons and attributes from an Oracle database, and then call the geotools API to construct the .shp and .dbf file. The polygons are currently stored as a list of lat-long in the database.

Thanks,
Elaine

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[Larry Reeder]

Hey Elaine,

The class ShapefileDataStore should do what you want:

http://javadoc.geotools.fr/2.6/org/geotools/data/shapefile/ShapefileDataStore.html

You may also want to check out the user guide for creating a datastore:

http://docs.codehaus.org/display/GEOTDOC/04+How+to+Create+a+DataStore+or+DataAccess

and using a featurestore:

http://docs.codehaus.org/display/GEOTDOC/07+FeatureStore


 -Larry

On Wed, Oct 21, 2009 at 11:25 AM, Elaine Ting <[hidden email]> wrote:

Hi,
We need to do the following for a project:

- Write multiple polygons to 1 shapefile

- Also export a .dbf file along with the .shp file, and the .dbf should contain attributes associated with the polygon

I'm totally new to geotools. Would someone please tell me if this can be easily done using the geotools API?

I'm thinking of writing a Java program that would extract the polygons and attributes from an Oracle database, and then call the geotools API to construct the .shp and .dbf file. The polygons are currently stored as a list of lat-long in the database.

Thanks,
Elaine

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[mbedward]

Hi Elaine,

As well as the javadocs that Larry mentioned please see the CVS 2 Shp
example here...

http://geotools.org/examples/csv2shp.html

This example is writing points to a shapefile rather than polygons but
the process is just the same otherwise.

Michael

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