Professional geospatial services
Projects
Key accomplishments in GDAL/OGR
Design and implementation of many features in the GDAL/OGR core:
- Unification of raster and vector driver models, per RFC 46, for GDAL 2.0.
- Use of the OGR SQL SQLite dialect.
- Support for multiple geometry fields per vector layer, per RFC 41.
- Support for curve geometries, per RFC 49.
- Support for sub-types of attributes of vector features, per RFC 50.
- Support for 64 bit integers for attributes and identifiers of vector features, per RFC 31.
- Support dataset transactions, per RFC 54.
- Addition of millisecond accuracy for dates, per RFC 56.
- Multithreading in the computational part of the image warping.
- GDAL_API_PROXY mechanism to off-load the execution of a driver in another process.
- Mechanism to expose GDAL datasets and raster bands as virtual memory mappings, per RFC 45.
- Support for several resampling algorithms in RasterIO() API, per RFC 51.
- Support for rasters of very large dimensions, per RFC 26
- Improvements in overview resampling and use of overviews in warping.
- Upgrade of the JP2OpenJPEG (JPEG 2000) driver to comply with Inspire recommandations for orthoimagery, and GMLJP2 v2 standard support.
Reverse engineering of ESRI FileGDB format
Writing of new GDAL (Raster) Drivers :
- ACE2
- ADRG/ARC Digitilized Raster Graphics (.gen/.thf)
- BPG (Better Portable Graphics)
- USGS LULC Composite Theme Grid
- Arc/Info Export E00 GRID
- ECRG Table Of Contents (TOC.xml)
- Epsilon - Wavelet compressed images
- GeoPackage Raster
- GRASS ASCII Grid
- HF2/HFZ heightfield raster
- JPEG-LS
- JPEG2000 (.jp2, .j2k) based on OpenJPEG
- KRO KOLOR Raw format
- MBTiles
- OZI OZF2/OZFX3
- Geospatial PDF
- PLMosaic (Planet Labs Mosaics)
- Rasterlite - Rasters in SQLite DB
- Raster Product Format/RPF (CADRG, CIB)
- Snow Data Assimilation System
- SRTM HGT Format
- WEBP
- WMTS (Web Map Tile Service)
- ASCII Gridded XYZ
- ZMap Plus Grid
Significant enhancements to the following GDAL drivers :
Writing of new OGR (Vector) Drivers :
- Aeronav FAA files
- Arc/Info Generate
- Atlas BNA
- CartoDB
- CouchDB / GeoCouch
- CSW (Catalog Services for the Web)
- EDIGEO
- Geomedia .mdb
- GeoRSS
- GMLAS (GML Application Schemas/Complex Features)
- Google Fusion Tables
- GPSBabel
- GPX
- Hydrographic Transfer Format
- Idrisi Vector (.VCT)
- OpenJUMP .jml
- Access MDB (PGeo and Geomedia capable)
- Open Document Spreadsheet
- OpenAir
- OpenFileGDB
- OpenStreetMap XML and PBF
- Geospatial PDF
- PDS
- PLScenes (Planet Labs Scenes)
- PostgreSQL SQL dump
- SEG-P1 / UKOOA P1/90
- SEG-Y
- SUA
- SVG
- OGC WFS (Web Feature Service)
- MS Excel format
- MS Office Open XML spreadsheet
- X-Plane/Flightgear aeronautical data
Significant enhancements to the following OGR drivers :
- GML
- ESRI FileGDB
- LIBKML : work to make it a Reference Implementation of OGC KML 2.2 specification
- GeoPackage
- MapInfo File
- PostgreSQL/PostGIS
- ESRI Shapefile
- SQLite/SpatiaLite
- VRT - Virtual Datasource
Maintainer of the Python and Java bindings, and the documentation of the latter one.
Thousands of security fixes.
Code review and integration of the following drivers:
- Magellan BLX Topo (.blx, .xlb)
- Generic Tagged Arrays (.gta)
- GPSTrackMaker (.gtm, .gtz)
- IRIS
- KEA
- OziExplorer .MAP
- Northwood/VerticalMapper Classified Grid Format .grc/.tab + Numeric Grid Format .grd/.tab
- SAGA GIS Binary format
- Selafin/Seraphin format
- Norwegian SOSI Standard
- Walk
Key accomplishments in PROJ
- RFC2: Implementation of the ISO-19111:2019 / OGC 18-005r4 standard for georefencing by coordinates, as C++ classes.
- RFC2: Implementation of WKT1, WKT2:2015 and WKT2:2018 standards for coordinate reference system (CRS) expression
- RFC2: Use of a SQLite 3 database to store coordinate reference systems and coordinate operation parameters
- RFC2: Addition of "late-bindings" capabilities to avoid systematic use of the WGS84 CRS pivot
Key accomplishments in MapServer
- Implementation of tile indexes of raster with different projections (RFC 100)
- Implementation of OGC WFS 2.0 protocol (RFC 105)
- Implementation of 2.5D geometry support for PostGIS and OGR input and WFS/GML output.
Key accomplishments in QGIS
- Upgrade WFS client to manage WFS 1.0 and 1.1 protocols
- Export of vector layers with human-readable field values
- Management of concurrent opening in QGIS and MapInfo of .TAB datasets.
Key accomplishments in OpenJPEG library (JPEG2000 library)
- Several ((1) and (2)) improvements in decoding time of code-blocks, resulting in overall gains of 20%
- Parallelized decompression of decoding of code-blocks and wavelet transform
- IDWT 5x3 single-pass lifting and SSE2/AVX2 implementation