unknown CSR | Blog GIS & Territories

9 May 20235 May 2023 Atilio Francois No Comments

QGis

Perry-Castañeda Library-southern europe 1943 maps: How to georeference?

The Perry-Castañeda Library Map Collection, located at the University of Texas, is one of the largest digital map collections in the world. This collection contains maps of all continents and many countries, as well as topographic,…

1 May 20232 May 2023 Atilio Francois No Comments

QGis

How to find the coordinate system of a layer with QGis 3.X?

When working with spatial data in GIS software, you regularly encounter the problem of files that lack a clearly defined coordinate system. When a file lacks its coordinate system (CSR), it can lead to misaligned layers,…

Pat on S57 Charts with QGis: display soundings16 April 2023
Thank you for this
Pat on Displaying marine charts with S57 QGis16 April 2023
Thank you. I have just seen you new article of how to produce the soundg z layer so you have…
Atilio Francois on Displaying marine charts with S57 QGis16 April 2023
Hello If you are looking for the value of the probes in soundg.shp, you will not find them. Simply because…
Pat on Displaying marine charts with S57 QGis16 April 2023
Thank you for the method. Has anyone managed to bring the SOUNDG layer in and successfully display depths please? I…
de backer on Hydrology with a GIS, for dummies (who we are): calculating the runoff (1)21 December 2022
Mr, Are the other articles (methods for calculating runoff) not online ? thanks for your reply. Salutations.