Come and see a tour of the best features of QGIS 3.0. I work as a consultant on a variety of projects. I am also currently working on the 3rd Edition of Mastering QGIS which is focused on version 3. So I've already worked with this latest major release extensively. There are a ton of new features. In this talk I will cover the very best new features including aspects of the new Layout engine, the Geoprocessing environment, GUI enhancements, new data visualization features, useful shortcuts and other miscellaneous features. Come learn how to get the most out of this major new release!
Imagine a world where a high quality report is a happy consequence of writing your everyday code. Or maybe you want to render your script directly to an html or pdf file or share maps, plots, and tables by simply sending a link to your colleagues for review? Notebooks provide an easy way to build and share transparent, reproducible analyses that weave together code, text, and graphics into a single, production-quality document.
On the tail of State of the Map US 2017 in Boulder, a working group of geospatial imagery data providers and developers met to discuss a common metadata and API specification to support the reuse of API and client software. The SpatioTemporal Asset Catalog is a minimal number of fields that should be made available across all types of geospatial raster or point-cloud data through APIs or catalogs. Depending on the type of data, STAC defines several extensions (i.e. electro-optical, point-cloud, video, mosaics).
Over the years, OpenStreetMap (OSM) has established itself as the most complete global dataset of road data, as well as a great source for other features like building outlines and points of interest. Its open data license has allowed third-party developers to create numerous tools for extracting, processing, and repackaging OSM data in a variety of formats. But with so many options, it can be difficult to keep up as new tools are created, and others are retired.
OSGeo is made up of projects and chapters. The projects deliver great software and develop solutions to geospatial questions. The local and national chapters support the OSGeo community in specific geographic regions. Chapters support adoption efforts, commercial efforts and other regional community events.
From March 26-28, 2018 sponsors and contributors to the GeoNode project gathered in Turin, Italy for a roadmap review and code sprint. This session will provide Foss4g-NA attendees a detailed report-out of issues discussed and decisions made in Turin with the goal of strengthening the GeoNode community in North America.
Urban regions often change rapidly and unevenly - some areas develop and grow while others deteriorate. Public datasets like OpenStreetMap (OSM) can lag behind, often in these crucial areas. A lot of focus in this space has been given to supplementing OSM with automatically detected features, such as through Machine Learning (ML) methods, in order to get the most recent vector datasets. However, for some users, it is change over time that is of interest rather than the latest and most accurate representation.
There are many point cloud viewers, there are many photogrammetry viewers, there are many BIM and CAD viewers. 3D viewers tend to specialize in a single domain. While there is nothing wrong with this approach, there is a growing need to visualize disparate datasets together in shared space. This need continues to be a driver for 3D Tiles, an open specification for streaming massive heterogeneous 3D geospatial datasets.
We have been working on the development of a library, API, and UI for the automatic extraction of coastlines from imagery. The UI allows users to interactively find and run coastline extraction algorithms on it. All the pieces are modular, so different algorithms can be plugged into it, and the underlying algorithm libraries are separated out as Python libraries that can be used on their own.
An understanding of outlet glacier dynamics is crucial for understanding the mass-balance of the Greenland Ice Sheet and how changes to the Ice Sheet will affect sea level rise. Measurements of outlet glacier velocities are crucial for driving and validating outlet glacier dynamics models and understanding the processes that influence glacier advance and retreat. The Helheim Glacier in southeast Greenland is one of the fast-moving glaciers in Greenland, and is a crucial study site for outlet glacier dynamics.
Sitting at the intersection of sales, product and marketing, product marketing is a critical aspect of commercially successful open source products. In this presentation we will take a closer look at the core functions, activities and services that ensure companies get the most out of their investment in open source. Topics covered will be:
Label Maker is an open source python library to help in extracting insight from satellite imagery. Label Maker creates custom machine-learning-ready training data for most popular ML frameworks, including Keras, TensorFlow, and MXNet.
The JTS Topology Suite and its ports have a long tradition of providing excellent implementations of basic geometry types and operations. In 2017, JTS completed its migration and incubation to the LocationTech working group of the Eclipse Foundation. This talk will discuss improvements that have happened since the 1.15.0 release of LocationTech JTS.
The JTS Topology Suite is a geometry library providing a Java implementation of the OGC Simple Features Specification. While coding up the spatial data structures (Points, Lines, and Polygons) seems easy, creating optimized, robust, and correct implementations of common spatial operations is challenging. The JTS algorithms have been used tested, improved, and deployed for nearly two decades.
PostGIS is a valuable tool for practitioners of data-driven public policy research because it supports the development of powerful, low-cost, centralized, and secure GIS environments that can integrate seamlessly with an organization’s Postgres research databases. Chapin Hall at the University of Chicago is a research and policy center that has had recent success replacing a patchwork of desktop GIS solutions with a powerful new enterprise GIS server built on PostGIS.
Even though web services aren’t exactly a new technology, there have been advances in protocols and payloads such as HTTP/2 and protobuf that enable scalability. Even with basic JSON-based services, there are a number of new and meaningful ways that older technologies can be innovatively applied to FOSS4G technologies today. The GeoWave team is excited to present the variety of web services that have been made available in recent releases. Exposing web endpoints allows a user to remotely access the functionalities of GeoWave.
Collected geospatial data may be in various formats – raster or vector (point, lines or polygons). When the use case requires us to perform analysis on a bound area, vector data in the form of points sometimes cannot facilitate our analysis. In such cases, the points need to be converted into a multi-polygon layer in order to facilitate various functional analysis based on the spatial data. This talk explores the implementation of an approach to build a multi-polygon layer from point vector data.
Is your boss or customer making you move to the cloud? Learn how to do more than just toss FOSS4G tools in a Docker image.
This talk will focus on leveraging AWS technologies like S3 and EMR to enable and scale spatial and spatio-temporal storage and Spark analysis using the GeoMesa cloud native toolkit. The tools involved allow for you to pay for just the storage and computation your application needs (and all those things your boss is making you do)!
The size of geospatial datasets continues to grow, the largest of which routinely reach billions of rows and beyond. Making that data interactive and explorable, and generating real-time insights can be challenging (and sometimes impossible using today’s tools). But there is an emerging technology that has some properties ideally suited to these large-scale datasets and complex visualizations, and that’s GPUs.