In Article previous we have discussed some SQL functions for spatial processing . In this article we will see a function a little more complicated to put at work: the aggregation function for two layers of polygons. This operation is the one called Union in ArcGis. The purpose of the… Continuer à lire…
We have already discussed the topic of geometry validation through a series of articles (in french): GIS tools for validation of geometries (1) Geometry validation GIS tools (2): Spatiality and PostGis Geometry validation tools (3): FME Geometry validation tools (4): Geomedia Intergraph Geometry validation tools (5) with QGis In this… Continuer à lire…
Thank you for this
Thank you. I have just seen you new article of how to produce the soundg z layer so you have…
Hello If you are looking for the value of the probes in soundg.shp, you will not find them. Simply because…
Thank you for the method. Has anyone managed to bring the SOUNDG layer in and successfully display depths please? I…
Mr, Are the other articles (methods for calculating runoff) not online ? thanks for your reply. Salutations.