Sensor Web, Geoprocessing, Security & GeoRM, Geostatistics, Semantics, 3D, Ilwis, Earth Observation

OSGeo-Live 11.0 released

September 18th, 2017 @ 13:03 by Ann Hitchcock
Posted in 52°North, Communities, Geoprocessing, Sensor Web

osgeo_banner

OSGeo-Live 11.0 has been released! It has been a major reboot, with a refocus on leading applications and emphasis on quality over quantity. Less mature parts of the projects have been dropped with a targeted focus placed on upgrading and improving documentation. There is now support for isohybrid ISO images with UEFI

52°North’s latest SOS version is now available on OSGeo-Live! (more…)

Simple Features for protobuf and others – Final Blog Post

September 18th, 2017 @ 12:53 by Malith Withanage Don
Posted in 52°North, Communities, Geoprocessing, GSoC, Sensor Web

GSoC2017 - M.M.Don

My experience with the GSoC 2017 project “Simple Features for Protobuf and others” came to an end by presenting my results at the Geospatial Sensor Webs Conference 2017. It was really pleasing to see that a majority of the audience was really interested in the project outcome and eager to see it progress in the future. (more…)

Simple Features for protobuf and others – Mid Term Blog Post

July 20th, 2017 @ 08:20 by Malith Withanage Don
Posted in 52°North, Communities, GSoC

Introduction

The core idea of my GSoC 2017 project “Simple Features for protobuf and others” is to define and implement a serialization API for spatial vector data, which will transparently serialize geometries based on the Simple Feature specification using Protobuf into binary encoding. The Simple Feature Access Specification is a common standard that is widely used in geoinformatics for exchanging spatial features. This serialization API also supports decoding serialized binary data into prefered output models such as JTS and others. Protocol Buffers is used as the primary serialization framework. Other serialization frameworks, such as Avro, are being considered as well. I am currently implementing serializing support for raster data into the API, where it will utilize raster data formats, such as GeoTIFF, and modeling libraries, such as GeoTools.

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Extending the geostatistical capabilities of ArcGIS via the R-bridge with R, Shiny and gstat

July 19th, 2017 @ 08:20 by Benedikt Graeler
Posted in 52°North, Geostatistics

Screenshot of ArcGIS along with the interactive kriging Shiny app.

ArcGIS is the central tool to handle and derive geoinformation in many applications. However, the standard kriging capabilities only include a few covariance functions and hide the estimation and fit quality of the semivariogram to a large degree. R is less appealing for working with maps, but features a variety of statistical, i.e. geostatistical, extensions. In this showcase, we exploit the semivariogram modeling and kriging capabilities of the gstat R package. In order to give the user visual control over the estimation procedure and the model selection, we use the Shiny framework to realize an interactive graphical user-interface for the semivariogram fitting step. This tool hides the entire R implementation from the user, but delivers a good deal of the geostatistical power to perform kriging. (more…)

Simple Features for protobuf and others

June 1st, 2017 @ 13:14 by Malith Withanage Don
Posted in 52°North, Communities, Geoprocessing, GSoC, Sensor Web

The Simple Feature Access Specification is a common standard that is widely used in geoinformatics for exchanging spatial features. It defines a common storage and access model for spatial vector geometries used by geographic information systems. Efficient serialization of this spatial data is a vital requirement in Spatial Data Infrastructures and Geoprocessing applications. (more…)

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