How to add a new spatial operation

Hello everyone, we have published a tutorial which shows how to extend the spatial operations framework with new spatial operations.

We expect this document to be interesting for those developers who want to include existent spatial operations or develop a new spatial operation for uDig, taking advantage of the spatial operations framework.

In this tutorial we develop the spatial operation Centroid. The screenshot shows the user interface idea. In the presented example the centroid operation has created a new layer called Centroid_1 using as source layer the countries layer.

To download visit our web site www.axios.es, "Tutorials and Documents".

cheers

AXIOS UDIG EXTENSIONS 1.2.2

This release, available for uDig 1.1.x, includes improvements

and bug fixes in the Parallel Tool.

Also, you could have a look in the development branch. The axios suit 1.3.0-m2 was tested with uDig 1.2 M6.

To download this new releases please visit the uDig update-site or our web site www.axios.es download page.

New UDIG3D alpha release!!

We are delighted to announce the release of uDIG3D alpha version 0.1 with
support for 3D spherical (WGS84) maps and 3D projected maps. A new 3D Map is
integrated within udig to be managed as a simple map but with the advantage of
3D representation.

It makes use of OSGVirtualPlanets(osgVP) version 2.2.0. osgVP is a library
developed in the Instituto de Automática e Informática Industrial(AI2) of the
Universidad Politécnica de Valencia(UPV).

If you want to test this release you can download a complete uDIG with the
necessary plugins and native libraries from here:

Linux Version:
http://www2.ai2.upv.es/difusion/uDIG/udig-linux-i386-alpha-v0.1.tar.gz

Windows Version:
http://www2.ai2.upv.es/difusion/uDIG/udig-win-i386-alpha-v0.1.zip

Some video demonstrations can be found here:
http://www2.ai2.upv.es/difusion/uDIG/demo-uDig1.swf
http://www2.ai2.upv.es/difusion/uDIG/demo-uDig2.swf

User Guide:
https://svn-gis.ai2.upv.es/svn/gis-projects/udig-extensions/trunk/Documentation/UserGuide.pdf

If you are interested in taking a look at the code the svn access is:

uDIG3D Plugin:
svn co https://svn-gis.ai2.upv.es/svn/gis-projects/udig-extensions/trunk udig3d-trunk

osgVP Plugins:
svn co https://svn-gis.ai2.upv.es/svn/gis-projects/osgvp/trunk/ osgvp-plugins-trunk

osgVP:
svn co https://gvsig.org/svn/osgvp/trunk/ osgvp-trunk


NOTES:
There is some known problems with the persistence of the 3D Maps, so we
apologize for possible issues. If anyone is interested in continuing or support
these developments please contact us.

uDig 1.2 M6

The uDig 1.2 "milestone 6" release is available for download.

This release is the result of an amazing week long code sprint held at Hydrologis in Italy supplimented by developers all over the world. A special thanks to the participating organizations: Axios, Camptocamp, Fraunhofer IAIS, HydroloGIS and LISAsoft.

The milestone release features:

• Better support for TIFF and depending on your platform ECW and MrSID with an update to the imageio-ext library
• Enhanced vector editing, revamped printing support
• Upgrade to the latest Eclipse 3.5 (finally we can offer cocoa support on mac!)

Here are some example of some of the enchancements:

• Import multiple layers into catalog at once
  
• Deleting multiple maps only asks for a single confirmation and delete
  
• standard paper sizes are now supported when printing!
  
• Add rectangles, roundrectangles and ellipse when printing
  
• Drag and Drop improvements: drag and drop mixed content in the catalog and map, move several maps at once, multiple services on project at once, handle multiple layers in the layer view
  
• Improved workflow: An Open Map action, switch between common map scales

All in all 41 issues have been addressed for this release - for more information check the release notes.

AXIOS UDIG EXTENSIONS 1.2.0

This release, available for uDig 1.1.x, includes new features, improvements and bug fixes. We want to highlight the following ones:


NEW FEATURES

• Spatial Operation Split splits features from a source layer using a LineString features from a second layer (or reference layer).
  

• Spatial Operation Polygon To Line transforms the Polygon features from a source layer into LineString features.
  

• Spatial Operation Fill creates a new geometry using the reference line and the border of the source polygon as its own border.
  

• Spatial Operation Hole Cut makes a hole inside a polygon feature using a valid lineString that is within the polygon.
  
  

IMPROVEMENTS

• Merge Tool the usability has been improved in several ways.
  
  

• New Split algorithm, it allows add vertex to neighbour geometries. Additionally, it solves many reported problems in the old split tool.
  
  

• Parallel Tool - Improvements ofthe algorithym.
  
  

• Spatial Operation Dissolve allows to select multiple dissolve property.
  
  

• The spatial operation framework was factored to provide an easy way to extend with new operations. Thus the control logic was encapsuled in abstract classes to simplify the creation, associations presenters- commands and event handling .

• Spatial Operation Extensions Point allows to add new spatial operations in the default set.

To download this new release please visit the uDig update-site or our web site www.axios.es download page.

Finally, we want to thank uDig community for your comments and suggestions to improve this product.


If you want to know more about this project visit the
following page: uDig Axios Community Space - Spatial Operations and Editing Tools

FOSS4G2009 presentations about uDig and friends

The FOSS4G2009 presentations are defined, so here are some uDig related presentation that you might be interested to attend:

Here is what the HydroloGIS team came up with:

• JGrass, present and future
• Anatomy of a digital field mapping with BeeGIS
• JGrass-uDigs's sense for climate change

A very interesting live demosnstration comes from Potsdam, as suggested by Matthias Lendholt:

• Live Demonstration of DEWS (that will show a Tsunami Early Warning System using uDig and GeoTools. If the network connectivity works properly they will show a life scenario instead of a powerpoint presentation)

Are there others around? Please send us an email if you are presenting something related to uDig & friends.

IRC meeting about post code sprint release

The meeting agenda was as follows:
1) jre's and startup scripts
2) to style or not to style
3) where is my printer
4) editing bugs ade

The good news is a release being organized for Friday.