How to remove .png files recursively from a folder tree without removing .png8 files too We have some large GeoWebCache caches of Ordnance Survey map tiles in .png8 format. Unfortunately a few million .png files have crept into the caches too (accidental bad config at some point),... read more Posted by Crispin Flower 27 May 2020 Categories: GeoServer Ordnance Survey Python Comments(0)
Find "Godzillas" in your ArcGIS feature class (by counting vertices) A useful way to select and generalise only the more complex features To count the number of vertices: Add a new field to the feature class called, for example, VertexCount Use the Calculate Field tool within the attribute table, or in ArcToolbox, with the... read more Posted by Sylvina Tilbury 15 May 2013 Categories: ArcGIS MapLink Python Comments(0)
Tilecache: how to stop tilecache_seed.py bailing out with HTTP 502 errors We are using TileCache http://tilecache.org/ to create caches of Ordnance Survey data of various flavours, for use in high demand web sites. We are tending to pre-seed the caches, then access them... read more Posted by Crispin Flower 24 February 2012 Categories: MapServer Python Tilecache Comments(0)
Serving Ordnance Survey rasters with GeoServer and MapServer - some irks and quirks I’ve been preparing a tilecache of UK Ordnance Survey mapping for a couple of big projects, combining Open Data with licensed Landranger (1:50,000) and Explorer (1:25,000) mapping. The tilecache... read more Posted by Crispin Flower 21 January 2012 Categories: GeoServer GIS (general) MapServer OGR/GDAL Python Comments(0)
Breaking a site with Multi-Mechanize In my previous post I got started with Multi-Mechanize and established that it is a useful tool for load-testing web sites. Next I tried it on a real site that we are currently building – the new... read more Posted by Crispin Flower 28 December 2011 Categories: IIS Load-testing Python SQL Server Comments(0)
Trying out Multi-Mechanize web performance and load testing framework Information and download from http://code.google.com/p/multi-mechanize/ UPDATE 14th March 2012: now moved to http://testutils.org/multi-mechanize Multi-Mechanize is an open source... read more Posted by Crispin Flower 27 December 2011 Categories: IIS mojoPortal Python Comments(0)