MileCharter for Maptitude v1.4 released

MileCharter for Maptitude v1.4 was released this morning. MileCharter is our popular batch mileage computation add-in for Maptitude, designed to calculate rectangular mileage tables and perform “find closest” type queries. v1.4 adds support for the new Caliper Maptitude 2016. See the MileCharter website for further information including a free 14 day trial.

MPCluster for Maptitude v2 released

v2 of MPCluster for Maptitude, our cluster analysis add-in for Caliper Maptitude, has just been released. v2 adds two license levels: Basic and Professional. Both licenses include the following updates: Hierarchical boundary polygons can now be concave – inline with the potentially concave nature of these clusters. Input data layers are limited to only those ...

New Maptitude 3d Surfaces Section

I have just added a new section to the Maptitude ‘Howto’ pages over at mapping-tools.com, discussing Maptitude’s 3d surface and landscape options. Here is an example image of Snowdonia, created using Ordnance Survey elevation data combined with Google Maps Satellite imagery: Other examples include Guadalupe Mountains (Texas), and geological overlays of both the Caprock Escarpment ...

Mapping the St Albans Sinkhole 2

Mapping the St Albans Sinkhole
On 1st October, a large sinkhole opened up in St Albans, UK, cutting off an entire cul-de-sac of houses. New sinkholes are very common, but this one quickly became international news due to its photogenic proximity to houses. We think of sinkholes as appearing in places like Florida or the Yorkshire Dales. Why did one ...

Book Review: PostGIS in Action

PostGIS in Action by Regina O.Obe and Leo S. Hsu, provides a good introduction and reference to the PostGIS extensions to the popular Postgres database. It is recommended for anyone intending to use PostGIS. Although the book includes a primer and introductory coverage of SQL and Postgres, someone with limited experience in these areas will ...

Book Review: OpenStreetMap: Using and Enhancing the Free Map of the World

OpenStreetMap: Using and Enhancing the Free Map of the World by Frederik Ramm, Jochen Topf, and Steve Chilton is a good introduction and overview of the OpenStreetMap (OSM) project. Unlike most OpenStreetMap overviews, this book goes into a useful amount of detail covering subjects such as the data model, how to edit the maps, and ...

Voting Machines in the Florida 2000 Election

This example uses Caliper® Maptitude® to analyze the Florida results of the 2000 US Presidential Election. During the 2000 Presidential Election, the results for Florida came under close scrutiny and argument, with the final result being decided by the courts. Amongst the accusations was the charge that a lot of people in the county of ...

Technical Overview: GeoNames

GeoNames is a series of web services to an extensive geographical database of over 8,000,000 names. The database is also available for “bulk” download. Both access methods are under the Creative Commons attribution license. The web services are available through free and commercial interfaces, and using a number of different format/protocols.

Polar Maps and Projections: Part 2, Implementation 2

The first part of this article looked at different ways of producing polar maps and surveyed a number of different azimuthal projections that are often used for polar maps. In this second part, I produce a working implementation using UMN MapServer and OpenLayers.

Polar Maps and Projections: Part 1, Overview

With the success of my earlier series on global equal area map projections (starting with this overview), I received a number of requests to produce a similar how-to article for polar maps. The first part of this article (published here) provides an overview of a number of different map projections commonly used for polar maps. ...