New Features
The UASL Project is currently in development. Information on these pages will be updated accordingly. If you have any questions or comments please email Bob Harris boss@cast.uark.edu
Feature list for GeoSurf version 2.0:
Registration/Security
- Users are now required to register with GeoSurf.
- Registration is a one-time process.
- Users are then required to login to GeoSurf each time they start it, using the login id and password created when they registered (password can be changed later).
- There is a "demo" account which allows users to try out the software but will not allow them to set any preferences or download any data.
User Preferences
- Registered users can save certain preferences to be used in future GeoSurf sessions. These include:
- Basic user information (name, email address, password)
- Metadata and geographic filters (for use in future sessions)
- Vector download preferences (format, coordinate system, clip mode)
- Raster download preferences (format, coordinate system)
More raster download formats
- Users can now download raster data in GeoTiff, PCI Raster (PIX), ArcInfo Band Interleaved Grid, ArcInfoASCII Grid, ENVI, and ERDAS format.
- Not all formats are available for all data types.
Improved download interface
- One-click download (if you have saved your preferences)
Improved raster processing
- More concurrent jobs
New, fully FGDC compliant, metadata database
- Uses SMMS software plus some custom Java code.
Metadata filter panel is now database driven
- The content of the drop down lists are drawn from the database.
Vector and Raster download panels are now database driven
- The content of the drop down lists are drawn from the database.
- Allows CAST to easily update available format and coordinate system options by changing entries inthe database.
Eliminated the Perl scripts
- These previously handled the vector and raster processing and were a sore-thumb in terms of performance and maintenance.
- Advanced String handling in Java 1.4 allowed us to port the functionality into the Java Servlet code.
Enhancements to assist debugging of download processing.
- Temporary download directories are now named after the download id.
- Download processing logs are now stored directly in these directories.
- These directories are deleted when a job completes without error but will now be left behind whenever a download job has problems.
Added hooks for system level and user level download throttling
- Allows CAST to conrol the workload of our servers leading to improved overall performance. We'll be experimenting with the threshold values of these throttling parameters in order to fine-tune UASL's performance.
Built with Java 1.4
- By making use of the latest-and-greatest java release, we have improved both the efficiency of back-end data processing and our ability to quickly deploy fixes and updates.
- Will require the Java 1.4 plug-in
- HTML is updated to initiate auto-install of the new plug-in (from Internet Explorer)
Built with J2EE1.3.1
- By making use of the latest-and-greatest java release, we have improved both the efficiency of back-end data processing and our ability to quickly deploy fixes and
