Where Immigrants Live inwards Allegheny County is a scatterplot map of where Pittsburgh's immigrant communities alive inwards the city.
Each dot on the map represents 1 Pittsburgh resident. The dots are colored to demonstrate the expanse of the basis where each citizen was born. The scatterplot points tin survive filtered yesteryear percentage of rootage to discover the areas of the metropolis favored yesteryear unlike immigrant communities. For example, selecting simply immigrants of Australian descent reveals that many Australian immigrants accept chosen to alive inwards the expanse to the westward of Bird Park.
The map was created amongst Mapbox in addition to Leaflet.js. The scatterplot layer was created inwards QGIS using census data. If you lot are interested inwards learning to a greater extent than virtually how the map was created Databurgh has published a helpful tutorial on Building a Scatterplot Map inwards QGIS in addition to TileMill.
The Texas Tribune has published a map showing the place of disposal wells where waste-water, oft from hydraulic fracturing sites, is beingness disposed of inwards the state. Texas Disposal Wells visualizes the place of 7,000 disposal wells inwards Texas.
The map uses hexagonal binning to highlight the number of wells inside an area.. You tin zoom inwards on the map to sentiment the place of the private wells.
The Texas Tribune uses the Mapbox platform. Mapbox has written a overnice tutorial on how to role hexagonal binning amongst Mapbox created maps. Binning: an Alternative to Pointmaps explains how the gratis in addition to opened upwardly source QuantumGIS tool tin survive used to exercise a hexagon density layer, which you lot tin in addition to then overlay on peak of a Mapbox map.
Newspapers responded to concluding week's European elections amongst a number of election maps of the results. The map that I was most impressed amongst was yesteryear the Berliner Morgenpost. Europawahl 2014 Alle Stimmen inwards den 529 Berliner Wahlkiezen is a map showing the results of the European elections inwards each of Berlin's 529 election districts.
The map provides a elementary visualization of the overall winners inwards each electoral district inwards Berlin yesteryear shading each district amongst the color of the winning party. If you lot click on an electoral district on the map you lot tin sentiment a breakdown of the results for each political party in addition to you lot tin also compare the 2014 results amongst the votes cast inwards the district inwards the 2009 European Elections.
The visualization also uses an effective polygon knockout number to highlight Berlin on the map. If you lot desire to recreate this number amongst Google Maps you lot tin role Vasile Cotovanu's polygon masking wizard Geomask. Using Geomask it is possible to exercise a doughnut type polygon which alone shows the map through the hole inwards the doughnut polygon. The number of using Geomask is to highlight the relevant expanse on the map in addition to mask the residue of the map.
Another effective blueprint chemical cistron of the map is that when you lot click on an electoral district on the map a business is drawn from the district to the results inwards the map sidebar. It appears that the Berliner Morgenpost had discovered a groovy method for drawing a polyline from the map to a static chemical cistron exterior the map.
