Automate Stream and Catchment Delineation in QGIS with the Graphical Modeler

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  • Опубліковано 20 вер 2024

КОМЕНТАРІ • 9

  • @asn2406
    @asn2406 3 роки тому

    Hello hans very good lecture.... please keep for watersheds creation and land use creation.also..

  • @romeuandrevieira
    @romeuandrevieira 4 роки тому

    Really nice webinars. Nice book also. But how can I define the sub basin (without having the outlets)?

  • @GeoGuru1
    @GeoGuru1 Рік тому

    Hello Hans, Thanks for this informative video.
    Just wanted to know can we connect both the model into one.
    Means is there any chance to extract x and y coordinates of 'snapped outlet' and feed as an input to 'upslope area' within in a single model.
    I have tried two methods to do so
    one is using expression of 'pre-calculated value' for 'target X coordinate'
    and another by editing python script of the model.
    But failed in both attempts.

    • @HansvanderKwast
      @HansvanderKwast  Рік тому

      That's not possible. We can only do that with Python. Check the PCRaster Tools plugin playlist for more integrated tools.

  • @immoll
    @immoll 4 роки тому

    I am struggling to be able to view the SAGA tool within my toolbox. I've activated it but its not appearing anywhere. Does anyone know how to fix this?

    • @HansvanderKwast
      @HansvanderKwast  4 роки тому +1

      First you need to check if you use the LTR version. Here's a video that explains the difference between the newest version and the LTR: ua-cam.com/video/FFf3_P6-4Ag/v-deo.html
      Then if the Processing Toolbox is still missing after installation you can try in this order:
      1. Activate processing toolbox from the plugins menu
      2. If that doesn't work, start a clean profile: settings -> profiles -> new profile. That will give you a clean QGIS.
      3. If that doesn't work go to the OSGeo4W shell and type setup. Then go to Advanced Desktop installation and run the updates. Make sure the LTR, GRASS and SAGA are installed.

    • @immoll
      @immoll 4 роки тому

      @@HansvanderKwast Thank you!

  • @janaa5074
    @janaa5074 4 роки тому

    hoe to delineate Sub basins?

    • @HansvanderKwast
      @HansvanderKwast  4 роки тому +1

      If you have the outlets of the subcatchments you can use this video: ua-cam.com/video/Hqc_1CMadhA/v-deo.html