REVEALING THE DATA SENSE

Dot maps displays datasets as a surface density. It can be used to visualize big datasets making bring up clearly the behavior patterns behind the data.

We have named this website Globalmaptiles in recognition of the great pyhton script globalmaptiles.py created by Petr Pridal. This source code is used to build high performance webmapping services in two fundamental principles: transforms global coordinate systems and creates pre-rendered tiles.


Tiled webmapping techniques provides a good balance between computation cost and availability resource, and it is a reliable option to publishing big data services on cloud. Europe Dotmap and Spain Dotmap have been created with the support of  globalmaptiles.py, as well as makedots.py wrote by Brandon Martin-Anderson.

PROJECTS
 


591 million points
(one per person) at 72.147 administrative areas (municipalities, provinces,...) from 53 countries. The data come from a fusion of two big data sets
. Data from estimated 2015 population by NASA SEDAC - Gridded Population of the World v3, and  administrative areas by Global Administrative Areas (GADM v2).

46 million points
(one per person) at 35.975 administrative areas (census sections). The data come from Census 2011 of Spanish National Statistics Institute (INE). Census sections are statistical geographic reference of municipality subdivisions.

As a basemap it is possible to visualize the official public and free WMS cadastral web service.


Full color version of Spain Dotmap drawing people by 'under 16 years', 'between 16 and 64 years' and 'over 64 years'
.

Full color version of Spain Dotmap drawing people by 'spanish nationality' and 'foreign nationality'.



SPAIN DOTMAP BY EDUCATION

Full color version of Spain Dotmap drawing people by 'uneducated and illiterate', 'primary education', 'bachelor's degree' and 'university education'
.

14 million points (one per person) at 255.844 census subsections. The data come from Census 2011 of Statistics Portugal (Instituto Nacional de Estadística).



WORLD SUMMITS BY ELEVATION

60.097 points (one per mountain) tilemapped with QGIS and  QTiles Plugin.
WORLD VOLCANOES BY DENSITY

1.545 points
(one per volcano)
tilemapped with QGIS and        QTiles Plugin.


https://sites.google.com/site/globalmaptiles/espanya-eleccions-europa-2014

EUROPEAN PARLIAMENT ELECTION, 2014
Most voted political party  by spanish municipalities
PUNTES DE COIXÍ - ENCAJE DE BOLILLOS
46 zoomable high-resolution images of textile crafts


http://oldcatmap.a78.org/


OldCatmap.org Nou
Milers d'imatges antigues de Catalunya en un mapa
Thousands of old images of Catalonia on a map
CatastroHistorico.com Nou Consulta cartografía catastral por días y compara entre distintas fechas con fotografías aéreas históricas

AUTHORS
Carles Fonfria, Marc Oller

IDEAS AND SUGGESTIONS

globalmaptiles@gmail.com

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