Posts Tagged ‘railroad’

Natural Earth updated to version 1.2

Tuesday, May 25th, 2010

This update introduces supplementary hydrography features in North America and Europe that quadruple (4x) the number of lakes and rivers there. Many thanks to Tom P. for generalizing the vectors and Preston M. for adding tapering to North America (absent in Europe). In some cases the basic 10m rivers and lakes were modified to fit the new information and that’s been refreshed, as well. The North America data comes from the CEC North America Environmental Atlas. The Europe data extract is kindly provided into the public domain by the European Commission, Joint Research Centre (JRC), thanks Alfred J! Check out their original, higher resolution Europe data.

On the cultural front, North America gets roads and rails. General 10m detail roads and railroads come from the CEC North America Environmental Atlas. The supplementary roads are donated by XNR Productions and are at 1m scale, thanks Laura M. and Rob!

If you have data or time to contribute, especially to flesh out the new transportation and hydro themes, please contact me at nathaniel@naturalearthdata.com.

Note: We are not committing to building out supplementary level of detail in the rest of the world (we’re not THAT crazy!), but will incorporate such data if you contribute it. As always, we edit these data files but you should too before you publish maps using them. Feed us back corrections.

Download new or updated files »
(54.11 MB) version 1.2.0

(below) Rivers and lakes in North America. On the left the version 1.1 hydro features. On the right in color are the new, supplemental version 1.2 hydro features, 4x the density of features at the same 10m linework generalization.

northamerica_extra_10m_hydro

(below) Rivers and lakes in Europe. On the left the version 1.1 hydro features. On the right in color are the new, supplemental version 1.2 hydro features, 4x the density of features at the same 10m linework generalization.

europe_hydro_extra_10m

(below) Highways (red and blue) and ferry routes in North America.

northamerica_10m_roads_base

(below) Supplemental road detail in North America. Slightly different feature class scheme and data vintage.

northamerica_10m_roads_extra

(below) Railroads in North America.

northamerica_10m_railroads_base

Cartominutiae: Combined Symbols on Maps

Tuesday, July 7th, 2009

[Editor's note: Think smiley faces indicating good, ok, and poor choices for symbolization alternatives on maps.]

Republished from DIY Cartography.
June 12, 2009 by John Krygier.

combined_header_2

The construction of symbols on maps requires the interaction of many elements.  How these elements come together – literally the intersection of bits of points, lines, and areas – is the subject of a series of illustrations entitled “The Drawing of Combined Symbols.”  The majority of these guidelines focus on peculiar details that when done well, the typical map user won’t even notice. They are among the fascinating hyper-minutiae of cartography.

Faces indicate the quality of the choices illustrated – good, ok, and poor.

Examples are illustrated by Prof. Kei Kanazawa (heading the Working Group of the Japan Cartographers Association) in a chapter entitled “Techniques of Map Drawing and Lettering” in the out-of-print book Basic Cartography, Vol. 1 (International Cartographic Association, 1984, p. 45). These guidelines were developed for the pen and ink era of cartography, yet most are applicable to contemporary digital mapping.

Illustrations are for educational purposes only. Click on an illustration for a larger version.

combined_3-2-1

Railway Symbols: Note arrangement of tics and black and white parts.

Continue viewing more examples at Making Maps: DIY Carto . . .