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Best Practice when Loading geographic Polygons into SQL Server Spatial geometry column
This article describes a best practice to loading geographic polygons into SQL Server Spatial geometry column through guaranteeing correct coordinate winding order. It mentions FME’s Orientor transformer as a specific tool for when loading data.
2 September, 2026
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Geometry Storage Format
This article outlines why the storage formats used for geometry data by database spatial APIs are irrelevant: what is important is logical access.
7 April, 2022
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PostGIS: Creating a line inside a polygon
I love working with the PostGIS API. It is a deep and wide river to swim in. But sometime having read, researched, experimented, and not
7 August, 2020
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Spatial Representation of a Communications Pit
This article describes the elements of a telecommunications pit and shows how they can be spatially represented. In particular the concept of a butterfly as a method for displaying the walls of a pit is introduced.
7 August, 2020
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Urban Trees Data Model
Data model for the recording of urban trees in a city, town or council
7 August, 2020
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Support for ESRI’s ST_GEOMETRY
The following article results from customers downloading the free source code (eg for Oracle SDO_GEOMETRY) on this site without fully understanding that the code is
5 August, 2020
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Using Range Querying to Filter LineString Segments
This article shows how to use range querying against cumulative length to filter/select LineString segments
5 August, 2020
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Google Maps / Bing Maps Spherical Mercator Projection Information
I found this article very useful, I hope you do too. The Google Maps / Bing Maps Spherical Mercator Projection
5 August, 2020
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Silence is Golden?
UPDATE The book has been published If any of my readers are wondering why I have been so quiet of late, here are the reasons.
5 August, 2020
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National Broadband Network, Spatial Data & Processing
As a spatial practitioner familiar with many aspects of spatial data capture and processing, I have been watching the responses to the opportunity that the
31 July, 2020
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