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Spatial Database Independence
I often hear asserted in discussions about accessing data in databases that the approach taken should be “database independent”. The assertion is always made as
24 July, 2020
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Tiling Very Large Rasters
One often meets a question like this (asked on the PostGIS discussion list) about the performance of raster images: Can anyone comment on the “Performance”
16 July, 2020
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Cloud Computing GIS and Standards (OGC/ISO)
There is a discussion going on on LinkekIn about GIS and cloud computing. I responded to the posts and include my comments (which should be
16 July, 2020
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Usefulness of Spatial Metadata as a Foundation for an Australian data.gov and other uses
Disclaimer What follows is a personal opinion based on experience. While many statements appear critical of the people who create and administer spatial metadata in
10 July, 2020
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Vale Professor Pieter Roelof Zwart 1941-2010
One of the fathers of the Australian Spatial Industry, Professor Pieter Roelof Zwart (University of Tasmania), lost his battle with cancer on 3rd April 2010.
10 July, 2020
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Interview by Nestoria on Real Estate Mapping
This month, January 2009, I was interviewed by Kat Mackintosh, an Australian working for Nestoria in London. Nestoria are currently in the process of expanding
10 July, 2020
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Mapping surface area of a ruptured pipe in Oracle Spatial
I gave a talk last year entitled Automated Layer Management – Experiences At Mid Coast Water which was about mapping the area that would be
10 July, 2020
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FOSS4G 2009 Sydney Presentation
I gave a rather manic presentation (Open Source, Oracle and PostGIS) at the FOSS4G 2009 Conference at Darling Harbour in Sydney, Australia, on Thursday October
9 July, 2020
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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).
19 June, 2020
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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
17 June, 2020
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