Hello Dr. I am from PH, a GIS practitioner. Thank you so much for giving us tutorials!

Hes always imparting knowledge without keeping things to himself...so good a GURU G he is.

Thank you very much for this.

great thanks for sharing

This guy is a GOD

This is really cool. I use stream order as one input to a larger overland mobility model. I run it in a proprietary GIS right now but this makes me really interested to implement it in QGIS to compare performance. One thing QGIS lacked though the last time I tried, was Natural Breaks classification for Raster output.

@HansvanderKwast

10 ай бұрын

Thanks. Natural Breaks is still not available in QGIS.

Good job sir

Hans, as always your videos are truly amazing, thanks for taking the time to share! Is there an input or algorithm that could be used to select a DEM from a QGIS project or folder on your computer instead of from the Open Topography DEM Downloader?

@HansvanderKwast

11 ай бұрын

Sure. When you edit the graphical model, just replace the OpenTopography part with a Raster layer input that links to warp. The rest is the same.

💪💪💪💪💪💪

Thank you for this video , this will help my workflow faster. I have a question sir, there is this 'Error encountered while running Calculate flow Direction Execution failed after 14.97 seconds.'' How can i solve this one?

@HansvanderKwast

11 ай бұрын

Probably you haven't installed the PCRaster Tools plugin correctly. It could also be that the area is too large or that it's not able to save the temporary file. Test the procedure manually, step by step in that case to see where the problem starts.

@315royce

11 ай бұрын

@@HansvanderKwast Thank you very much sir. Will surely do your suggestion!

Hi Hans, I have installed PCRaster using Conda on my MacOS (as per your other tutorial), however now when I try to run this model, I get an error that the grass7 r.thin algorithm is not available. When I check the plugins, GRASS GIS Processing Provider appears to be installed already, I'm not able to find grass7. Do you know a way to get both PCRaster and grass7 working successfully on a Mac? I have a series of approximately 50 sub-catchment areas I would like to calculate, so the tool you share in this tutorial would be really helpful. Thanks in advance.

@HansvanderKwast

6 ай бұрын

Hi! GRASS doesn't work in conda (this is not specific to Mac), so you have to do that part in your regular QGIS installation on a Mac.

Hi Hans! This is really impressive. I tried to follow along, but when I run the model I get an error from GDAL's reproject(warp) "Attempt to create 0x0 dataset is illegal", which then causes convert_to_pcraster to fail with: src_ds = gdal.Open(input_raster.dataProvider().dataSourceUri()) AttributeError: 'NoneType' object has no attribute 'dataProvider' any idea what could be causing that? Thanks!

@HansvanderKwast

4 ай бұрын

It looks like it didn't download the DEM. Check the results of the steps to see where it goes wrong.

Thanks for the tutorial. I seem to have a problem installing the PC Raster Tools plugin. I get the following error "PCRaster Tools Plugin: PCRaster is not installed -- algorithms will not be available".

@evanslion3548

11 ай бұрын

I am using the released version of QGIS 3.32.1

@HansvanderKwast

11 ай бұрын

The PCRaster Tools plugin is a so-called Processing Provider plugin (like GRASS, SAGA, WhiteboxTools). Therefore, you need to install the software separately, before you can use the plugin. Here's the link to the documentation with installation instructions: jvdkwast.github.io/qgis-processing-pcraster/ More info about Processing Provider plugins in QGIS: kzread.info9fWQZqPjPVk?feature=share

@evanslion3548

11 ай бұрын

@@HansvanderKwast Very helpful. Thanks

opentopography algorithm is not showing in the model designer in my QGIS as you shown at @2:42 . pls help

@HansvanderKwast

5 ай бұрын

Try to create a new profile and install the plugin: kzread.info/dash/bejne/n3-ItKqFZbyymqw.htmlsi=4Bl88tXCZ3uZ9Khl