Reflecting a Geometry Object Around a Line
The STReflect function allows for any input geometry (point, line or polygon) to be reflected around a supplied 2-point line of reflection (LineString).
Month: June 2020
Implementing Point-based Costs in pgRouting
Implementing Point-based Costs in pgRouting pgRouting is a great tool but it does have certain limitations. One limitation is that one cannot have costs at specific nodes. All costs have to be edge based. Discussion on Node/Edge Costs in pgModeler For example, suppose a network has a stop valve between two pipes. Normally the stopRead More
Using SQL Server XML and Spatial to import VicMap seed/Incremental Update Format (IUF) data (Part 3)
This is the 3rd and last blog post about processing VicMap IUF XML data. (The 6 month delay is because I lost a draft of this article, and have been doing other things.) While much in this and the previous articles are about an Australian XML data format, the principles outlined remain the same. ThisRead More