GeoTools

OSGeo

Wednesday, February 21, 2018

GeoTools 19-beta Released

The GeoTools team is pleased to announce the release of GeoTools 19-beta:
This release is also available from our Maven repository.
This release is made in conjunction with GeoServer 2.13-beta.

This release includes a two major changes, both related to Java 9 compatibility, and a significant set of new features and improvements.

FactorRegistry Refactoring

In JDK 9 javax.imageio.spi.ServiceRegistry verifies that it is extended by JDK-classes only. For GeoTools' org.geotools.factory.FactoryRegistry that means that an exception is thrown, thus crashing GeoTools. To fix this, it was necessary to reimplement the ServiceRegistry functionality that is needed by GeoTools in FactoryRegistry.

For most users, this should not require any changes to make your project compatible. However, if you are accessing the FactorRegistry directly, there are some API changes that you will need to handle. For more details, refer to the FactoryRegistry Refactoring for Java 9 Compatibility proposal.


Java 9 Compatibility

More generally, GeoTools as a whole has been updated to be able to run on Java 9.
If your project depends on GeoTools 19.x, and you want to use it with Java 9, you will need to add the following flags to your JVM runtime arguments:
--add-modules=java.xml.bind --add-modules=java.activation
This adds the JAXB and Activation modules to the Java Runtime (They are not included by default in Java 9). Strictly speaking, this is only required if your project depends upon certain GeoTools modules, such as gt-imagemosaic.
Note that these arguments are not supported under Java 8. If you wish to retain compatibility with Java 8, also include:
-XX:+IgnoreUnrecognizedVMOptions
This tells the JVM to ignore options it doesn’t recognize, so Java 8 won’t throw an error.

Also note that running GeoTools on Java 9 will introduce a few functional changes:
  • XML pretty-print behaviour has changed, so that CDATA tags will now be on their own lines. These changes are only cosmetic - there are no functional changes to the XML. 
  • Certain math functions are more precise on Java 9. This can result differences in the last digit of double values between Java 8 and Java 9. In particular, this has been observed when dealing with reprojected coordinates.
  • Small changes in horizontal offset have been observed in labels following lines. This may be OS-specific.

GeoPackage performance improvements

GeoPackage reading and rendering performance improved significantly, up to two times faster on large datasets full extractions and 50% faster on small bounding box searches, bringing GeoPackage on par with PostGIS. We also have a Google spreadsheet with more details.

Shapefile remains king of full dataset extractions and the fastest data source for pure spatial driven queries.

Support for more PostGIS data types

The PostGIS data store now has simple support for HStore and JSON columns. HStore is returned as a Map, while JSON is read as a String. In both cases no special query support has been added for those types (but we'd be very happy if someone would work, or sponsor, that functionality too).

Better label position control in map rendering

When setting maxDisplacement on point/polygons the renderer used to search in a circular area around the designated label point.
The new displacementMode vendor option allows to control the positioning by specifying the preferred cardinal positions, as a comma separated list.


Shapefile now supporting all Java object types on write

Shapefile used to throw exceptions if unrecognized object types were fed to it (basically, anything but geometries, strings, numbers and dates). From now on it will write unrecognized objects as strings instead.

Assorted improvements

Highlights from our issue tracker release-notes:
  • Upgrade JDom to version 2.0.6
  • Upgrade to EJML 0.32
  • Upgrade Apache Solar Java client to is last stable release
  • Expose GDAL ASRP/USRP format
  • GML 3.2 encoding misses mandatory gml:id on geometry elements - fast path
  • Cannot export to GeoPackage when GeoServer feature type has Boolean attribute
  • MongoDB support optional milliseconds in ISO8601 date/time string
  • Geometries used in expressions should be cloned during rendering to preserve their original coordinates
  • Improved NoData support in mosaics of NetCDF files
  • JDBCDataStore recognize the "in" function family (including in2, ..., in10) and encode those as native SQL whenever possible. Also, all Instant objects will now be encoded in SQL (before only the Date family was encoded properly).
There is also a large set of bug fixes. For more information see the 19-beta release notes.

Please test test test!!

Java 9 (and the soon-to-be-released Java 10) introduce significant changes, so please test GeoTools on Java 9 if you are able. 
Please also test GeoPackage and all the new features introduced in this release.

Monday, February 19, 2018

GeoTools 17.5 released

The GeoTools team is pleased to announce the release of GeoTools 17.5:
This release, which is also available from the GeoTools Maven repository, is made in conjunction with GeoServer 2.11.5.

GeoTools 17.5 is the last maintenance release of the 17.x series, time to consider upgrading!
The release mainly fixes bugs but also includes some enhancements: 
  • Allow group extraction in image mosaic regular expression based property collector
  • Allow overriding LabelCache in renderer
  • Allow MetaBufferEstimator to work against a specific feature (to calculate sizes based on attribute values)
For more information please see the release notes (17.517.4 | 17.3 | 17.2 | 17.1 | 17.0 | 17-RC1 | 17-beta).

About GeoTools 17

  • The wfs-ng module has now replaced gt-wfs.
  • The NetCDF module now uses NetCDF-Java 4.6.6.
  • Image processing provided by JAI-EXT 1.0.15.
  • YLSD module providing a plain-text representation of styling.

Upgrading

  • The AbstractDataStore has finally been removed. Please transition any custom DataStore implementations to ContentDataStore (tutorial available).

Tuesday, January 23, 2018

GeoTools 18.2 Released

The GeoTools team is pleased to announce the release of GeoTools 18.2:
Thanks to everyone who contributed to this release. This release is made in conjunction with GeoServer 2.12.2.

This release is the current stable release recommended for new development.

Release highlights:
  • Image moasic fix for hetrogeneous mosaics crossing the dateline
  • streaming rendering fix to ensure that preparing geometry for display does not interact with geometry use for expressions
  • streaming renderer fix to ensure points with large mark size are not accidentally clipped when just off screen
  • Improvement to CSS styling allowing dynamic expressions and units to be used together.
For more information see release notes (18.2 | 18.1 | 18.0 | 18-RC1).

Tuesday, December 19, 2017

GeoTools 17.4 Released

The GeoTools team is pleased to announce the release of GeoTools 17.4:
This release, which is also available from the GeoTools Maven repository, is made in conjunction with GeoServer 2.11.4.

GeoTools 17.4 is a maintenance release that mainly fixes bugs but also includes some enhancements: 
  • Support for MongoDB as an app-schema source data store.
  • Support for enhancements in recent MySQL releases, including precise object shape spatial computations.
For more information please see the release notes (17.4 | 17.3 | 17.2 | 17.1 | 17.0 | 17-RC1 | 17-beta).

About GeoTools 17

  • The wfs-ng module has now replaced gt-wfs.
  • The NetCDF module now uses NetCDF-Java 4.6.6.
  • Image processing provided by JAI-EXT 1.0.15.
  • YLSD module providing a plain-text representation of styling.

Upgrading

  • The AbstractDataStore has finally been removed. Please transition any custom DataStore implementations to ContentDataStore (tutorial available).

Tuesday, November 21, 2017

GeoTools 18.1 Release

GeoTools 18.1 Released

The GeoTools team is pleased to announce the release of GeoTools 18.1:
This release is also available from our Maven repository.

Thanks to everyone who took part in the monthly bug stomp, or directly making the release. This release is made in conjunction with GeoServer 2.12.1. 

This release is the current stable release and as such users and downstream projects should consider moving from older releases to this one.

Highlights from our issue tracker release-notes:
  • Add support for latest MySQL DB enhancements in jdbc-mysql module
  • Fixed [GEOT-5840] - WMTS getCapabilities fails parsing WellKnownScaleSet
For more information see this and past release notes (18.1 | 18.0 | 18-RC1).

Thanks to Boundless for allowing David Vick to make this release.

Sunday, October 22, 2017

GeoTools 17.3 released

The GeoTools team is pleased to announce the release of GeoTools 17.3:
This release is also available from our maven repository.

This release is made in conjunction with GeoServer 2.11.3.

GeoTools 17.3  marks the switch of the 17.x series to maintenance mode (as 18.x takes the role of stable release) is a recommended upgrade for projects already using the 17.x series. This release comes with 15 assorted fixes and a couple of minor improvements:

  • Several improvements in image mosaic and raster rendering (in particular related to mosaics with mixed CRS, filtering and sorting, and direct modification of the mosaic index)
  • Avoid rendering empty outputs on raster data when the oversampling factor reaches very high values
  • Better mapping of dates in Oracle datastore, in particular, DATE is now mapped to java.sql.TimeStamp
  • Better toString for temporal filters (handy if you're debugging some code involving them)
  • Fixed an issue preventing to parse GeoJSON having a "crs" key among its properties
And more! For more information please see the release notes (17.3 | 17.2 | 17.1 | 17.0 | 17-RC1 | 17-beta).

About GeoTools 17

  • The wfs-ng module is now a drop in replacement and will be replacing gt-wfs
  • The NetCDF module now uses NetCDF-Java 4.6.6

Upgrading

  • The AbstractDataStore has finally been removed, please transition any custom DataStore implementations to ContentDataStore (tutorial available).

Tuesday, October 17, 2017

GeoTools 18.0 Released

The GeoTools team is pleased to announce the release of GeoTools 18.0:
This release is also available from our Maven repository.

Thanks to everyone who took part in the code-freeze, monthly bug stomp, or directly making the release. This release is made in conjunction with GeoServer 2.12.0

This release is the new stable release and as such users and downstream projects should consider moving from older releases to this one.

Highlights from our issue tracker release-notes:
  • GeoPackage store now supports spatial indexes.
  • WMTS store added this allows programs to process tiles in a similar way to the existing WMS store.
For more information see past release notes (18-RC1 | 18-beta).

Thanks to Astun Technology for allowing Ian Turton to make this release.