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Polar Maps and Projections: Part 2, Implementation

Jan

18

2010

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

Jan

11

2010

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. ...

How to create an online map with a non-Mercator Projection: Part 2

Sep

23

2009

In the first part of this article we created a WMS server of basemaps using an unconventional map projection (the Mollweide projection). In this second part, we shall implement the client side of the project, creating a working application that will plot user data on the basemaps.

How to create an online map with a non-Mercator Projection: Part 1

Sep

21

2009

Previous articles in this series, discussed different coordinate systems and map projections available, and why different systems suit different applications (Part 1, 2). This was followed by a look at geostatistical and thematic maps where data areas and data densities are important (Part 1, 2, 3). Virtually all online map applications use the Mercator projection. ...