What I’d like to do with mapnik

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Steve Chilton's presentation at SOTM10 "What I'd like to do with mapnik"

Transcript of What I’d like to do with mapnik

What I’d like to do with mapnik

Steve Chilton

we’d

© OpenStreetMap contributors, CC-BY-SA

With thanks to: Artem, Dane, Lennard, Jon

www.mapnik.org

Problems in non-manual cartography

…. three classic problems that computer-generated map output has to deal with. These are generalization, type placement, and overlaying of detail on other detail.

It will be our task as a project to incorporate these principles and techniques as the project develops, solving problems along the way. I am sure it will be an interesting ride.

Respect the layer tag implicitly

© OpenStreetMap contributors, CC-BY-SA

Not place labels of underlying roads on bridges

© OpenStreetMap contributors, CC-BY-SA

Iterate alternative label placements

Apply point-in-polygon to text placement

© OpenStreetMap contributors, CC-BY-SA

Allow rotation of icons

© Richard Fairhurst

Accept SVG icons

© OpenStreetMap contributors, CC-BY-SA

Apply variable width to canals/rivers

© OpenStreetMap contributors, CC-BY-SA

Apply vignettes inside polygons

Ordnance Survey © Crown copyright 2010

Produce spread text labels

Ordnance Survey © Crown copyright 2010

Different casing either side of roads

Ordnance Survey © Crown copyright 2010

Text labels either side of a line

© OpenStreetMap contributors, CC-BY-SA

Add more Natural Earth data at low zooms

© 2010. Natural Earth. All rights reserved

Steve ChiltonEmail: steve8@mdx.mdx.ac.uk

Twitter: steev8

What I’d like to do with mapnikI’m going

© 2010. Natural Earth. All rights reserved