Map done entirely in QGIS with Print Composer.  I'm currently working on a QGIS plugin to create Indexed Grids (now available, called 'Create Indexed Vector Grid'). This is similar to the existing Vector Grids function, except that each square is also labelled with a spreadsheet-style coordinate like A1, F3 etc. It also creates label cells along the top and down the side (here these have a dark blue background). You could also do this cell naming manually, the following technique would be…

Map done entirely in QGIS with Print Composer. I'm currently working on a QGIS plugin to create Indexed Grids (now available, called 'Create Indexed Vector Grid'). This is similar to the existing Vector Grids function, except that each square is also labelled with a spreadsheet-style coordinate like A1, F3 etc. It also creates label cells along the top and down the side (here these have a dark blue background). You could also do this cell naming manually, the following technique would be…

The outcome of a little experiment I've been working on trying to classify the names of all places recorded in the GeoLiteCity database (dev.maxmind.com/geoip/legacy/geolite/).   Basically, I’ve extracted the first letter of a place’s name. For those with an accent (i.e. Á) I’ve grouped those with the approximate standard English letter (i.e. A) – which I appreciate doesn’t really capture the actual pronunciation too well… also for the Icelandic contingent out there, the þ has been…

The outcome of a little experiment I've been working on trying to classify the names of all places recorded in the GeoLiteCity database (dev.maxmind.com/geoip/legacy/geolite/). Basically, I’ve extracted the first letter of a place’s name. For those with an accent (i.e. Á) I’ve grouped those with the approximate standard English letter (i.e. A) – which I appreciate doesn’t really capture the actual pronunciation too well… also for the Icelandic contingent out there, the þ has been…

Built using (a slight variant of) Anita Graser's method for producing Tanaka-style illuminated contours (anitagraser.com/2015/05/24/how-to-create-illuminated-cont...).

Built using (a slight variant of) Anita Graser's method for producing Tanaka-style illuminated contours (anitagraser.com/2015/05/24/how-to-create-illuminated-cont...).

I developed this general reference map in QGIS 2.8 "Wien" to highlight at a scale of 1:1,000,000 the relationship between Nepal's population density (source: 2015 WorldPop) and the extreme overall topography. I used the QGIS Terrain Analysis tool to create a hill shade from SRTM 90 imagery (source: CGIAR-CSI). At this scale it is possible to show administrative layers with labels down to the district level, along with main roads and the locations of airports across the country (sources…

I developed this general reference map in QGIS 2.8 "Wien" to highlight at a scale of 1:1,000,000 the relationship between Nepal's population density (source: 2015 WorldPop) and the extreme overall topography. I used the QGIS Terrain Analysis tool to create a hill shade from SRTM 90 imagery (source: CGIAR-CSI). At this scale it is possible to show administrative layers with labels down to the district level, along with main roads and the locations of airports across the country (sources…

Full tutorial at anitagraser.com/2015/05/24/how-to-create-illuminated-cont...

Full tutorial at anitagraser.com/2015/05/24/how-to-create-illuminated-cont...

UK vessel journey density for the year 2012 created using QGIS 2.10  MMO data © Crown copyright and database right

UK vessel journey density for the year 2012 created using QGIS 2.10 MMO data © Crown copyright and database right

tried to visualise what Scotland would look like if it was warped by drive times from Edinburgh.  The map is centered on Edinburgh city centre. Angles are preserved, but the distance from the centre is the drive time rather than geographic distance.  Used QGIS (pgRouting Layer plugin), PostgreSQL, PostGIS and pgRouting. Road network is OS Open Data, crown copyright and database rights 2015.  more details on my blog

tried to visualise what Scotland would look like if it was warped by drive times from Edinburgh. The map is centered on Edinburgh city centre. Angles are preserved, but the distance from the centre is the drive time rather than geographic distance. Used QGIS (pgRouting Layer plugin), PostgreSQL, PostGIS and pgRouting. Road network is OS Open Data, crown copyright and database rights 2015. more details on my blog

I study commuting patterns in my work and love the flow mapping and rendering capabilities of QGIS for this. This was my most ambitious flow map project with QGIS - about 4 million individual rows of data. The map shown here was created within the Print Composer. If you're interested in the method and the data, I published a short working paper here: ajrae.staff.shef.ac.uk/img/us_lower_48_with_labels_and_te.... The map shows commuting connections (straight lines) between Census Tracts in…

I study commuting patterns in my work and love the flow mapping and rendering capabilities of QGIS for this. This was my most ambitious flow map project with QGIS - about 4 million individual rows of data. The map shown here was created within the Print Composer. If you're interested in the method and the data, I published a short working paper here: ajrae.staff.shef.ac.uk/img/us_lower_48_with_labels_and_te.... The map shows commuting connections (straight lines) between Census Tracts in…

This is a map of the English Indices of Deprivation classification for the local authority area of Liverpool. Why did I do this? I was trying to see if I could follow up on an idea I've had before - and enhance the communicative power of the legend by making it into a data display. I finally figured it out.  I think this helps with the interpretation of the data and helps overcome some of the limitations of cognition with choropleths containing differently sized spatial units. The areas…

This is a map of the English Indices of Deprivation classification for the local authority area of Liverpool. Why did I do this? I was trying to see if I could follow up on an idea I've had before - and enhance the communicative power of the legend by making it into a data display. I finally figured it out. I think this helps with the interpretation of the data and helps overcome some of the limitations of cognition with choropleths containing differently sized spatial units. The areas…

A regional map of the Northeast Megalopolis in the United States. The Northeast Megalopolis traditionally includes the cities (and surrounding suburbs) of Washington, DC; Baltimore, MD; Philadelphia, PA; New York, NY; Boston, MA and various other smaller metropolitan areas.  More information about the region: en.wikipedia.org/wiki/BosWash and en.wikipedia.org/wiki/Northeast_megalopolis  Contains geographic data from the following sources: US Census Bureau: political divisions, urban areas…

A regional map of the Northeast Megalopolis in the United States. The Northeast Megalopolis traditionally includes the cities (and surrounding suburbs) of Washington, DC; Baltimore, MD; Philadelphia, PA; New York, NY; Boston, MA and various other smaller metropolitan areas. More information about the region: en.wikipedia.org/wiki/BosWash and en.wikipedia.org/wiki/Northeast_megalopolis Contains geographic data from the following sources: US Census Bureau: political divisions, urban areas…

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