I’ve been setting up some new mapping services (WMS) in GeoServer, with GeoWebCache allowing the map tiles to be cached for performance. For this to work, and for the WMS to use its cache of tiles,... read more

Occasionally we need to transfer user accounts from existing ASP.NET membership based sites into MojoPortal Note : if the databases are on the same server, or can be linked, then it is possible to ... read more

Quantum GIS has a powerful field calculator, similar to that in ArcGIS, and described here. I was using it to update a tile index shapefile for use with GeoServer and a folder full of georeferenced... read more

mojoPortal uses either CKEditor or TinyMCE as the default HTML editor. We tend to use CKEditor. The default configuration is American English. To change this in such a way that mojoPortal... read more

ArcGIS (v10 on) no longer reads component categories from the registry, instead component category information is read from configuration files (*.ecfg) stored in: C:\Program Files... read more

A problem frequently encountered with sharing data between MapInfo and ArcGIS is that the British National Grid projection used by ArcGIS is accurate to 1 mm, whilst the standard projection used... read more

When a SQL Server is configured to run scheduled full backups followed by a sequence of differential backups, taking an ad hoc backup will affect how backups can be restored, potentially breaking the ... read more

Assuming that one already has a WMSGetFeatureInfo on the map then its quite simple: Add new class Use new class New class // A control class for capturing click... read more

I’ve been fixing some minor issues with the utility in HBSMR that imports data from the Portable Antiquities Scheme. One issue was that some characters were mojibaked during the import, for example... read more

Mike S-G has passed me this useful tool for dropping all connections from a database. This is required before deleting or re-naming databases, for example. This creates a stored procedure in... read more