Technology Blog archive

Invalid Geometries In SQL Server 2008

By Jorge Garcia de Bustos

Posted in Technology Blog on December 7th 2010 23:42

Head of GIS Development Jorge Garcia de Bustos explains how to assess the quality of spatial capture in an overlay stored in SQL Server 2008, and how to find and count invalid geometries.

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Windows 7 Compatibility

By Jorge Garcia de Bustos

Posted in Technology Blog on December 7th 2010 12:10

Head of GIS Development Jorge Garcia de Bustos writes about Windows 7 and 64-bit compatibility.

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Microsoft SQL Server “Denali” CTP And Whitepaper

By Jorge Garcia de Bustos

Posted in Technology Blog on November 20th 2010 11:06

Microsoft have released a Community Technology Preview (CTP) of the new SQL Server release, code-named “Denali”, and a whitepaper detailing the new features. Some of the highlights: New aggregate functions UnionAggregate, EnvelopeAggregate, CollectionAggregate and ConvexHullAggregate for all geometries in a table. Improved spatial index for point data, which allows for much faster “nearest neighbours” and […]

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Address Layer 2 Gazetteer Searches

By Jorge Garcia de Bustos

Posted in Technology Blog on October 24th 2010 17:01

Head of GIS Development Jorge Garcia de Bustos demonstrates how to create an overlay that exposes OS MasterMap Address Layer 2, which allows users to perform gazetteer searches on it.

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View MasterMap Change-Only Updates (Part 2)

By Jorge Garcia de Bustos

Posted in Technology Blog on October 24th 2010 12:51

Head of GIS Development Jorge Garcia de Bustos shows how we can use display queries to show colour-coded MasterMap change-only updates.

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View MasterMap Change-Only Updates (Part 1)

By Jorge Garcia de Bustos

Posted in Technology Blog on October 24th 2010 12:31

Head of GIS Development Jorge Garcia de Bustos demonstrates how to create an overlay that shows MasterMap change-only updates.

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MasterMap Road and Building Polygons

By Jorge Garcia de Bustos

Posted in Technology Blog on October 23rd 2010 12:52

Head of GIS Development Jorge Garcia de Bustos demonstrates how to use database views to show only building and road polygons from OS MasterMap.

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