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GIScience Blog

Category: Software

  • Using Openrouteservice in the data science platform alteryx

    You can also use Openrouteservice via the self-service data analytics plattform alteryx, when you are a user of that data science product. Pablo Sáenz de Tejada (The Information Lab) has shared some macros on the alteryx public gallery using the Openrouteservice API that allows you to geocode addresses, calculate routes and create isochrones using the alteryx…

  • OpenStreetMap history explorer – ohsomeHeX published

    The exploration of the history of OpenStreetMap data presents an important step to uncover semantic connections, regions of interest and their contiguity in time and space at varying scales. Therefore, the HeiGIT Big Spatial Data Analytics team presents a first beta version of the new OpenStreetMap History eXplorer (ohsomeHeX). It resembles the idea of the OSMatrix¹,…

  • How to become ohsome part 3: Identifying different mapping schemes

    This is your first blog of the ohsome series? Before you might be confronted with any potential spoilers, you should better check out the first and the second part of this blog series (or the intro to the idea and general architecture) to be on the safe side and up to date with the current content. So…

  • Visualizing 3D Spatial Data with GigaMesh – Tutorial Videos

    A series of video tutorials of GigaMesh has recently become available on YouTube. GigaMesh is a software framework for displaying, processing and visualizing large meshes of 3D spatial data representing 2D surfaces. The most recent tutorial by Paul Bayer and Hubert Mara presents a rapid method of hillshading for a geospatial dataset. The video shows…

  • Solve routing optimization with VROOM + openrouteservice

    In a Vehicle Routing Problem (VRP, an example is the Traveling Salesman Problem), we are concerned with finding optimal routes for a fleet of vehicles having to reach given destinations, e.g., in order to deliver goods to customers. Due to its high computational complexity, this task requires dedicated VRP solvers, such as VROOM. In collaboration with…

  • How to become ohsome part 2: Comparing different regions based on their attributive completeness of OSM data

    Welcome back to the second part of the blog series how to become ohsome. If you have not read the first part yet, better go and check it out now. It explains how you can create an ohsome visualization of the historical development of the OSM data from a city of your choice. This second part shows how to…

  • Road access restriction information in openrouteservice

    The new year started in the openrouteservice team at HeiGIT with the release of openrouteservice 4.7.2. In this release there were a number of bug fixes, but also some new features. The main one of these is the inclusion of information about access restrictions when your route takes you over roads that are marked in…

  • Erreichbarkeitsanalyse von Haltestellen des öffentlichen Personennahverkehrs in Stuttgart per Openrouteservice

    In einer aktuellen Publikation der Stadt Stuttgart wird die Erreichbarkeit von Haltestellen des öffentlichen Personennahverkehrs in Stuttgart untersucht. Für die Berechnung der Isochronen wurde das kostenfrei nutzbare QGIS-Plugin OSM Tools verwendet. Dieses nutzt den seit 2008 verfügbaren Openrouteservice des Heidelberg Institute for Geoinformation Technology (HeiGIT). Das Toolset umfasst Routing, Geocoding, Isochronen und Matrixberechnungen, entweder interaktiv im…

  • openrouteservice-js – your JS library for spatial node applications!

    And here comes another little Christmas present by HeiGIT: In addition to our previously released and highly appreciated python and R libraries we now offer an additional JavaScript API making the usage of the openrouteservice ecosystem covering the entire globe based on OpenStreetMap in your web applications terribly simple. From now on you will be…

  • Accessibility analysis of public transport in Stuttgart

    The Statistical Office of the City of Stuttgart determined the walking time to the nearest public transport stop for every place in the city using our QGIS plugin OSM Tools. With OSM Tools it only takes a few mouse clicks to access most of the functions of the openrouteservice. The toolset includes routing, isochrones and…

  • openelevationservice: enrich geometries with elevation

    We published a new endpoint within the openrouteservice API ecosystem: openelevationservice. It queries a remote DEM for every vertex of a LineString or Point geometry. The underlying DEM is limited to SRTM v4.1 by CGIAR Consortium for Spatial Information as of now, though we’re working towards integrating more high-resolution datasets. openelevationservice returns the altitude of…

  • Spatial conceptual compliance analysis with the OpenStreetMap History Database (OSHDB)

    In a previous blog post we performed a conceptual compliance analysis between OSM data and several tagging-guidelines using the OSHDB API. The results were visualized in a line chart, comparing the different compliance ratio over several months. The following analysis focuses on a spatial representation of the conceptual compliance. It is conducted for the “iD-editor”…