The GDAL/Proj.4 community has raised $142,000 for improving the map projection library behind major Open Source geospatial softwares. The issues to be fixed require an architectural change. Proj.4 is moving away from the early-binding approach (where WGS 84 is used as a pivot system) to a late-binding approach (with no fixed pivot system and […]
Apache SIS
4 articles
In August 17th 2017, we presented an introduction to Apache SIS in the Free and Open Source Software for Geospatial (FOSS4G) conference. A discussion about accuracy were planed, but skipped because of lack of time. The results that we intended to show are below. Disclaimer: the author of this blog […]
In August 17th 2017, we presented an introduction to Apache Spatial Information System (SIS) in the Free and Open Source Software for Geospatial (FOSS4G) conference. Discussions about performance and accuracy were planed, but skipped because of lack of time. A first part of the results that we intended to show […]
L’utilité des projections cartographiques est discutée dans de nombreux livres et sites web. Il s’agit de représenter une surface courbe (la Terre) sur une surface plane (une carte ou un écran d’ordinateur) en contrôlant les déformations: on peut préserver les angles ou les surfaces, mais pas les deux à la fois. Les […]