GIS Tutorial with QGIS

Some months ago I posted a set of exercises and practice data based on Quantum GIS to train new users in the basics of GIS. There’s been a request to split the 100 MB download into separate pieces so interested readers can have a look at the exercises and tutorial before downloading the whole business.

So here they are:

Enjoy.

21 thoughts on “GIS Tutorial with QGIS

  1. Hi!
    What is these files compressed with? (i.e how do I unzip them on a Windows machine)?
    Regards larsf

  2. On slides about Watershed has one “Procedure for watershed delineation” that you specified a job sequence, Could you explain more about it? Is it a rule for a better delineation?

  3. Hello,
    Thanks for the great course. I am relatively new to the world of GIS. I was trying with your exercises but in Exercise 2, I failed to follow your instuctions to “import CSV file using Delimited text plugin and then covert it into a new shape file”. Could you please explain it in more details, if possible through screen shots. Waiting for your reply.

  4. Rituparna :

    Hello,
    Thanks for the great course. I am relatively new to the world of GIS. I was trying with your exercises but in Exercise 2, I failed to follow your instuctions to “import CSV file using Delimited text plugin and then covert it into a new shape file”. Could you please explain it in more details, if possible through screen shots. Waiting for your reply.

    Here are a few more details:

    * A delimited text file has rows of data, each item separated by a comma. (CSV=Comma Separated Values). The first row contains the column headers. And two of the columns will have the X,Y coordinates. So a simple example might look like:

    label,value,longitude,latitude
    one,10,30.000,34.000
    two,12,30.002,34.003
    three.15,30.010,34.020
    four,9,29.995.33.998
    five,7.5,30.005,34.006
    ….
    * The delimited text plugin (the icon to activate it is a blue square with commas:,,, inside) will import this file and place points on the map display for each row in the CSV file. If the X-Y columns have normal names (‘X’ and ‘Y’ or ‘Latitude’ and ‘Longitude’) then the plugin will recognize the columns automatically. If you have some other names for the X-Y locations, then in the plugin there’s a place to choose the correct columns for each.

    * Once you have loaded the CSV file, and you see the points on the display, then simply right-click on the name of that layer in the Table of Contents (left hand pane) and choose “Save as Shapefile”.

    HTH,
    Micha

  5. Very very sorry for the delayed response. Thanks very much for a detailed explanation about importing CSV file using Delimited text plugin.
    Thanks again.

  6. Hye, I am new to QGIS. I am interested in creating a plugin/extension for QGIS. How can I do that?

  7. Hi Micha,
    Thanks for the GIS Tutorials. I tried to go through Ex. 9: Using GRASS – Watershed delineation, using r.watershed inside SEXTANTE-QGIS. But I could not go on. The function requires many input parameters, such as ‘Locations of real depressions’, ‘Amount of overland flow per cell’, ‘Percent of disturbed land for USLE’, etc. These are not mentioned in your tutorial. What shall I put in these blanks? Thanks for the help.
    Al

  8. THose extra parameters are all optional. The r.watershed module works fine without filled depressions. The other two are useful only if you are going to use the results in the USLE modules afterwards.
    Best,
    Micha

  9. Hi,
    Im looking for a Training in QGIS. Can you conduct ?

    Thank you.
    Regards
    Krishnan

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