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STRound: Function to round ordinates of a SQL Server Spatial geometry object
The result of many geoprocessing operations in any spatial type can be geometries with ordinates (X, Y etc) that have far more decimal digits of
STExtract: Extract elements of a geometry object
Of the functions I have written for Oracle, those that allow me to extract (sub)elements of compound (objects consisting of linestrings and circular arcs) and
STNumRings: Counting number of polygon rings
Here is an “ease of use” function that allows you to count the number of rings of a polygon or multipolygon geometry object in SQL
STFilterRings: Removing rings from Polygon based on area.
A function that have found use in Oracle and PostGIS is one that allows a user to filter out the rings of a polygon or
STMove: Function to Move a geometry object in SQL Server Spatial
If you have need for a TSQL based function for moving geometry objects in SQL Server Spatial (Denali is required), here is a function you
STCentroid*: Alternate Functions for Compute a Centroid
The top download from my website is for my package of centroid algorithms for Oracle sdo_geometry. There is nothing wrong with the STCentroid function implemented
STRotate: Function to rotate a geometry object in SQL Server Spatial
If you have need for a TSQL based function for rotating geometry objects in SQL Server Spatial (Denali is required), here is a function you
STVertices: Wrapper over STDumpPoints
Oracle’s point dumping function, mdsys.sdo_util.getVertices is most useful. When swapping between platforms sometimes I look first for such a function in SQL Server Spatial forgetting
STMorton: Creating a Morton Number Space Key Value for Grid Cells
Introduction NOTE: This article is a copy of the original first written in 2010 from my old website. Space curves are imaginary lines that systematically
Gridding a geometry object (PostGIS)
A common question that comes up in the various database forums (PostGIS, SQL Server, Oracle) is how to “grid” a linear or polygonal object. By
Documentation
- MySQL Spatial General Function Documentation
- Oracle LRS Object Documentation
- Oracle Spatial Exporter Package Documentation
- Oracle Spatial Object Function Documentation
- Oracle Spatial Object Function Documentation (Multi Page Version)
- PostGIS pl/pgSQL Function Documentation
- SC4O Oracle Java Topology Suite (Stored Procedures) Package Documentation
- SQL Server Spatial General TSQL Function Documentation
- SQL Server Spatial LRS TSQL Function Documentation