Sustainable transportation is a nice idea but can be hard to apply in real life to your daily commute to work or school. For many it involves multiple transportation modes and it can be a challenge to combine the time tables from multiple sources in order to plan the most . . .
OpenStreetMap (OSM) is now TriMet’s standard source for routable base map data. TriMet utilizes OSM for internal systems and applications that necessitate a routable base map including, but not limited to: Computer-Aided Dispatch/Automatic Vehicle Location (CAD/AVL) system; Call Center and Field Trip applications; LIFT paratransit mobile data terminals (MDTs); OpenTripPlanner, . . .
Mapping urban infrastructure systems is a key requirement to advance our capacity to understand and promote the resilience of cities to both extreme weather events as a result of climate change and to long-term infrastructure transformation as a process of climate adaptation. Yet, while developing nations will bear the brunt . . .
GRASS GIS, a free and open source geographic information system, provides the functionality to manage, analyze and visualize geospatial data. Recently, support for managing the temporal dimension has been integrated into GRASS GIS as a response to an increasing accessibility and importance of spatio-temporal data. However, to fully benefit from . . .
Phylogenetic data from the “Tree of Life” have explicit spatial and temporal components when paired with species distribution and ecological data for testing contributions to biological community assembly at different geographic scales of species interaction. Important questions in biology about the degree of niche suitability and whether the history of . . .
This presentation will discuss the design of interactive raster masking capability for a web-based geographic information system (Web GIS) from the perspective of user-centered design. A case study will be presented by analyzing and discussing specific aspects of the user-developer dialog within the context of the software development life cycle. . . .
This presentation demonstrates common techniques to clean-up spatial data from a real-world data source.
I will start with raw OSM data.
Topics I’ll cover:
1) Getting OSM data
2) How to merge multilinestrings into single linestrings.
3) Fill in gaps, snapping, reducing resolution
4) Consolidating geometries with aggregate functions ST_Union, ST_MakeLine, ST_Collect based on both spatial . . .
In this session we’ll introduce how you can work with spatial data in Elasticsearch – The Open Source, distributed, RESTful Search Engine. We’ll provide a general introduction on how to index spatial data into Elasticsearch, then cover off on using spatial query and filters, before finishing up showing you how . . .
Terraformer is an Open Source geometry engine built to run in the browser and on the server. It is built with open standards first (GeoJSON), and includes the ability to work with ArcGIS JSON and Well Known Text.
Terraformer includes the ability to work with geometry, as well as build Geo-Enabled . . .
ZOO-Project is an Open Source Implementation of the OGC Web Processing Service (WPS), it was released under a MIT/X-11 style license and is currently in incubation at OSGeo. It provides a WPS compliant developer-friendly framework to easilly create and chain WPS Web services.
This talk give a brief overview of the . . .
