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Parallel PostGIS and PgSQL 12
For the last couple years I have been testing out the ever-improving support for parallel query processing in PostgreSQL, particularly in conjunction with the PostGIS spatial extension. Spatial querie…
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GeoSolutions is attending GEOINT 2019!
Dear Reader, GeoSolutions is proud to announce that we will take part in this year GEOINT in San Antonio, USA, from 2nd to 5th of June. If you are attending and you want to learn how we help our clien…
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GeoSolutions is sponsoring FOSS4G 2019!
Dear Reader, GeoSolutions is proud to announce that we will take part in this year FOSS4G in Bucharest, Romania, from 26th to 30th August as Bronze Sponsor. We have also submitted workshops and presen…
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Representando linhas de ônibus no Leaflet
Hoje vamos falar sobre o plugin Polylines Offset que adiciona a habilidade de você desenhar uma linha com um offset (deslocamento) de pixel relativo, sem modificar seus LatLongs reais. O valor do dess…
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Criando uma timeline com o Leaflet
Se você está procurando uma opção para gerar uma timeline (linha do tempo) no seu mapa, você pode utilizar o Time-Slider do Leaflet que permite que você adicione e remova dinamicamente marcadores em u…
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Flow maps in QGIS – no plugins needed!
If you’ve been following my posts, you’ll no doubt have seen quite a few flow maps on this blog. This tutorial brings together many different elements to show you exactly how to create a flow map from…
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Introdução ao Leaflet – Calculando distância
Hoje vamos usar o Turf.js para calcular a distância entre dois pontos ao longo da trilha. O Turf.js é classificado como “Análise geoespacial avançada para navegadores e Node.js.” A distância calculada…
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MapStore Release 2019.01.00: Timeline, Styler and more
Dear Reader, We are pleased to announce the release 2019.01.00 of MapStore, our flagship Open Source WebGIS product. The full list of changes for this release can be found here, but the most interest…
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Fast Geometry Distance in JTS
The second-most important criteria for a spatial algorithm is that it be fast. (The most important is that it's correct!) Many spatial algorithms have a simple implementation available, but wit…
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Leaflet Day 9 - Calculating Distance with Turf.js
Today we’re going to use Turf.js to calculate the distance between any two points along the trail. Turf.js is billed as providing “Advanced geospatial analysis for browsers and Node.js.” The distance …
