Exegesis Spatial Data Management

 

Exegesis SDM knowledgebase

The exeGesIS knowledgebase supplements our product manuals and training materials with notes and tips from our development team and product consultants.

When GeoServer SQL Server stores won’t load on a new server

We’ve been migrating a large GeoServer instance onto a new Windows 2019 server. The old GeoServer instance was running version 2.7, the new one version 2.15.1. Nearly everything “just worked” after... read more
 

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
 

When MapServer refuses to run in an ASP.NET Core MVC site (401 - unauthorized)

Well that was two hours I won’t get back, but I’ll make a note here in case it helps anyone else. I had simply overlooked one of those many tiny things…We use MapServer as a lightweight GIS engine in ... read more
 

A Guide to the Ordnance Survey Archaeological Records

Our HBSMR application is for collecting and managing Historic Environment Record (HER) data, usually as the permanent inventory for an area, and sometimes for short-term data collection or research... read more
 

Configuring Geoserver with Geo web cache (GWC)

The aim of this is to improve the performance of our mapping (obvious really I hope) both in terms of the speeds a user experiences and in terms of the number of users our server can support. In... read more
 

Mapserver returning WFS attributes scrambled when using msplugin_mssql2008 plugin

We recently upgraded Mapserver to the current version for a project because we wanted the WFS id field to be populated in geojson which required a recent version of (OGR >=2.3) which was included... read more
 

Using cloudscribe with Identity Server 4 with a SQL Server store on .Net Core 2 MVC securing APIs

Well that’s a bit of a mouthful of a title – but it does describe what I was trying to do, and I didn’t find it easy. It’s not that complicated when you know how, but there are an awful lot of... read more
 

How to link SQL Server / RDBMS tables into MS Access without a DSN

Linking tables from RDBMS like SQL Server into an Access front end doesn't need an ODBC DSN to be configured, it can be done with a one-liner. I’m just posting this here because I keep having to look ... read more
 

Opening ESRI Personal Geodatabases in QGIS

In the more recent 64-bit versions of QGIS it is no longer possible to open ESRI personal geodatabases using the 'Add vector layer' functionality. However, it is possible to enable access to personal ... read more
 

GeoServer WFS fails on SQL Server tables/views with GUID data type

Just a quick note that might be useful to some. The problem... If you publish a SQL Server (in this case 2014) table or view with a GUID field using GeoServer (version 2.10), it will fail to... read more
 
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