| |
|
Here is an overview of the enhancements found in Oracle
Spatial 11g
Operations on 3D R-trees include:
A TIN is a vector-based topological data model used to represent terrain surfaces. TINs are composed of a network of irregularly spaced triangles. The 3D surface is derived from these irregularly spaced points where each point has an x, y and z value. Oracle's data type, SDO_TIN, can block the data into small pieces. Oracle doesn't worry about the number of points; it has the mechanism to aggregate the TINs. This function reads the TIN block as an SDO_Geometry and is much more efficient to store and retrieve data. Oracle 11g will not support functions to derive slope and aspect in this release. 3D coordinate system support Oracle 11g will associate a coordinate system with 3D data. The 3D coordinate systems are all based on European Petroleum Survey Group (EPSG) specifications (codes representing geodetic parameters for datums and projections), and the following are supported:
Spatial Web Services Oracle identifies two approaches for structuring spatial Web services. The first model to consider when setting up a Web service is one in which "spatial" is the primary focus of the Web service. For example, a basic Web service might entail the ability to incorporate real-time information and the result may be a map or a report, such as returning driving directions between two points. The second model is one for a business service that contains a spatial component such as performing a standard business search, query or workflow. The spatial information is not the primary focus but the result may incorporate a map as a supporting element to visualize the information. Oracle Spatial already supports the Open Geospatial Consortium's Web Map Service (WMS 1.1). Oracle 11g will support the Web Feature Service (WFS) version 1.1 and Catalog Services Web (CSW 2.0) specifications. Oracle Spatial's WFS implementation uses SOAP/XML over HTTP, as well as the GML filter specification for feature search and Lightweight Directory Access Protocol (LDAP) for authentication. For transactional operations, the product supports the ability to retrieve a set of features while locking some, or all, features for a certain period of time. It also supports updating or deleting existing feature instances based on filter criteria. Web Services Security One of the more important features of Oracle is the ability to address stringent security issues and specific levels of security. Those not familiar with the levels of security will find the following explanation useful.
Enhancements to Oracle Spatial's support for raster data include:
Oracle has made several enhancements to its network data model (NMD) that some users have been awaiting. The NDM has two components: the NMD Load-on-Demand (LOD) Network Partitions that supports dynamic data sets, and the NDM LOD Analysis Engine with a Java API that supports a suite of functions including:
More about this author... |
LI Articles
|
Your Comments All comments provided in this section are those of the individual who has created the post. These are not the opinions of Directions Media, its editors, staff or owners unless otherwise noted. Directions Media retains the right to edit or delete any comments posted herein.
|
Photos - LI 2008
Conference Registration
Registration Includes:
- One Conference Workshop,
October 5; 9:00 a.m. to 12:00 p.m. - Choice of one workshop (TBD) - Access to all Keynotes
- Conference Social Event
- Two Breakfasts and Two Lunches plus all Coffee Breaks
- Access to Exhibit Area
- Standard Registration: $795
- Onsite Registration: $895
- Student Registration: $195
- Government Rate: $695
(Contact us for details or use the code you were e-mailed) - Speaker Registration: one day free - $595 full registration
- A one day pass - $595
- A two day pass - $795
- Exhibitor floor - only $295