Re: [Qgis-user] basic contouring and kriging

2021-12-10 Thread Nicolas Cadieux
Hi, Krigging functions are part of the SAGA Algorithms.  If you do not see SAGA in the processing toolbox, then you probably need to activate the provider.  Activate the toolbox, go to the processing options (the wrench), Processing, Providers.  You may want to install the the Processing Saga

Re: [Qgis-user] basic contouring and kriging

2021-12-09 Thread Firstname Lastname
Thanks for the information above, it was very helpful and i now have a better understanding of the interpolation process. As a follow up question, i could not find the krigging function in the processing toolbox, only TIN and IDW. where do i look for the krigging interpolation Also, i understand t

Re: [Qgis-user] basic contouring and kriging

2021-12-06 Thread Nicolas Cadieux
Hi, Open the Processing toolbox panel, search for 'Krigging'.  You will see multiple SAGA modules. If you search for "interpolation", you will find IDW AND TIN under Q modules and other methods under the SAGA module. If you search for "grid" you will find multiple algorithms under GDAL/Raster

Re: [Qgis-user] basic contouring and kriging

2021-12-06 Thread chris hermansen
Byron and list, On Mon, Dec 6, 2021 at 10:59 AM Firstname Lastname wrote: > hello group: > i want to demonstrate some of the pitfalls of computer contouring methods > with limited datasets. i wanted to use a small dataset to demonstrate > several contouring algorithms. In particular, linear in

[Qgis-user] basic contouring and kriging

2021-12-06 Thread Firstname Lastname
hello group: i want to demonstrate some of the pitfalls of computer contouring methods with limited datasets. i wanted to use a small dataset to demonstrate several contouring algorithms. In particular, linear interpolation, inverse weighted, nearest neighbour and kriging. Are any of these built