QGIS runs on Windows, various Linux distributions, Unix, Mac OS X, and Android. The QGIS project provides ready-to-use packages as well as instructions to build from the source code at https://qgis.org/en/site/forusers/download.html.
Download QGIS for Mac - Create very complex and detail-rich maps using a large variety of spatial data formats such as vector, raster and databases on a multiple operating systems. Using QGIS 2.18.2 on Mac OSX12.3 Sierra. Found I had to download an ECW support package for GDAL from Kyngchaos and follow his instructions in the Readme (including downloading the ECW package from Hexagon) to read ECWs.
In this section, we will explain on how to install QGIS on Windows, Ubuntu and Mac OS X, as well as how to avoid the most common pitfalls.
Further installation instructions for other supported operating systems are available at http://www.qgis.org/en/site/forusers/alldownloads.html.
One of the good things of open source projects is that you have a choice between different releases. It is the same with QGIS. The following options are available, you can choose only one or you can choose all versions if you believe that you are categorized as one in 13.5 percent of population as an early adopter :D:
Latest release (LR): It is the version that includes newly developed and tested features. It is currently released every four months (except when an LTR version is released instead). If you want to stay up to date with the latest development but not comfortable with using development version, you can use this version.
Long-term release (LTR): The LTR version is recommended for corporate and academic use. It is currently released once per year in the end of February. It receives bug fix updates for at least a year, and the features and user interface remain unchanged. This makes it the best choice for training material that should not become outdated after a few months.
Developer version (DEV, master, or testing): The cutting-edge DEV version contains the latest and greatest developments, but be warned that on some days, it might not work as reliably as you want it to.
For this training, we will cover the steps on how to install the LR (QGIS 3) and the LTR version (QGIS 2.18).
You can have more information about the releases as well as the schedule for future releases at http://www.qgis.org/en/site/getinvolved/development/roadmap.html#release-schedule.
For an overview of the changes between releases, check out the visual change logs at http://www.qgis.org/en/site/forusers/visualchangelogs.html.
On Windows, there are two different options to install QGIS, the standalone installer and the OSGeo4W installer:
The standalone installer is one big file to download (approximately 280 MB); it contains a QGIS release, the Geographic Resources Analysis Support System (GRASS) GIS, as well as the System for Automated Geoscientific Analyses (SAGA) GIS in one package.
The OSGeo4W installer is a small, flexible installation tool that makes it possible to download and install QGIS and many more OSGeo tools with all their dependencies. The main advantage of this installer over the standalone installer is that it makes updating QGIS and its dependencies very easy. You can always have access to both the current release and the developer versions if you choose to, but, of course, you are never forced to update. That is why I recommend that you use OSGeo4W.
You can download the 32-bit and 64-bit OSGeo4W installers from http://osgeo4w.osgeo.org (or directly from http://download.osgeo.org/osgeo4w/osgeo4w-setup-x86.exe for the 32-bit version or http://download.osgeo.org/osgeo4w/osgeo4w-setup-x86_64.exe if you have a 64-bit version of Windows). Download the version that matches your operating system and keep it! In the future, whenever you want to change or update your system, just run it again.
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We have prepared the installation files for the training. You can download the softwares from our local server in this link http://ims.geoinfo.ait.ac.th/qgis-doc/softwares/
Regardless of the installer you choose, make sure that you avoid special characters such as German umlauts or letters from alphabets other than the default Latin ones (for details, refer to https://en.wikipedia.org/wiki/ISO_basic_Latin_ alphabet) in the installation path, as they can cause problems later on, for example, during plugin installation.
When the OSGeo4W installer starts, we get to choose between Express Desktop Install, Express Web-GIS Install, and Advanced Install.
To install the QGIS LR version, we can simply select the Express Desktop Install option, and the next dialog will list the available desktop applications, such as QGIS, uDig, and GRASS GIS. We can simply select QGIS, click on Next, and confirm the necessary dependencies by clicking on Next again. Then the download and installation will start automatically. When the installation is complete, there will be desktop shortcuts and start menu entries for OSGeo4W and QGIS.
To install QGIS LTR (or DEV), we need to go through the Advanced Install option, as shown in Figure 1.1.
This installation path offers many options, such as Download Without Installing and Install from Local Directory, which can be used to download all the necessary packages on one machine and later install them on machines without Internet access. We just select Install from Internet, as shown in Figure 1.2.
Figure 1.2: Install from Internet
When selecting the installation Root Directory, as shown in the following screenshot, avoid special characters such as German umlauts or letters from alphabets other than the default Latin ones in the installation path (as mentioned before), as they can cause problems later on, for example, during plugin installation, as shown in Figure 1.3.
Then you can specify the folder (Local Package Directory) where the setup process will store the installation les as well as customize Start menu name. I recommend that you leave the default settings similar to what you can see in Figure 1.4.
Figure 1.4: Select Local Package Directory
In the Internet connection settings, it is usually not necessary to change the default settings, but if your machine is, for example, hidden behind a proxy, you will be able to specify it here (Figure 1.5.)
Then we can pick the download site. At the time of writing this book, there are three download server available, as you can see in Figure 1.6. In this tutorial, you can choose http://download.osgeo.org.
Figure 1.6: Choose a Download Site
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After the installer fetches the latest package information from OSGeo’s servers, we get to pick the packages for installation. QGIS LTR is listed in the desktop category as qgis-ltr (and the DEV version is listed as qgis-dev). To select the LTR version for installation, click on the text that reads Skip, and it will change and display the version number, as shown in Figure 1.7.
As you can see in the following screenshot, the installer will automatically select all the necessary dependencies (such as GDAL, SAGA, OTB, and GRASS), so we don’t have to worry about this (Figure 1.8.)
Figure 1.8: Automatic Installation of Dependent Packages
After you’ve clicked on Next, the download and installation starts automatically, just as in the Express version. You have probably noticed other available QGIS packages called qgis-ltr-dev and qgis-rel-dev. These contain the latest changes (to the LTR and LR versions, respectively), which will be released as bug fix versions according to the release schedule. This makes these packages a good option if you run into an issue with a release that has been fixed recently but the bug fix version release is not out yet.
If you try to run QGIS and get a popup that says, The procedure entry point
On Ubuntu, the QGIS project provides packages for the LTR, LR, and DEV versions. At the time of writing this book, the Ubuntu versions Bionic, Artful, Xenial, and Trusty are supported, but you can find the latest information at http://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu. Be aware, however, that you can install only one version at a time.
In this section, the process to install QGIS 3 (LR) on Ubuntu 18.04 Bionic Beaver will be explained. You can refer to the previous link if you want to install QGIS LTR or DEV versions.
You can directly edit the /etc/apt/sources.list file with the following command:
Add the following line to the top or bottom of the /etc/apt/sources.list file:
Figure 1.9 shows how it looks like once the apt line of QGIS 3 is added to the /etc/apt/sources.list file.
If you’re using nano just press Ctrl + o once to save the apt line of QGIS 3 to the /etc/apt/sources.list file. You should be prompted to save the file. Just press Enter.
The GPG key should be added to your Ubuntu 18.04 Bionic Beaver machine.
Now you can verify whether the GPG key was imported correctly with the following command:
Figure 1.10: GPG Fingerprint
To add GPG key to apt package manager, run the following command:
The GPG key should be added to the apt package manager.
The download and installation process of QGIS 3 should start. It should take a while.
Figure 1.12: QGIS installed in Ubuntu 18.04
The general steps to install QGIS on a Mac are as follow:
As an initial step, it is often necessary to change your Mac security preferences to Allow apps downloaded from: Anywhere.
The Mac OS X QGIS installation files are available from https://www.qgis.org/en/site/forusers/download.html.
There are two versions of QGIS for Mac OS X, (1) Latest Release (LR) and (2) Long Term Release (LTR). LR version depends on Python 3.6 from python.org, and LTR version depends on Python 2.7 which is included in the disk image. For both versions, Read Me file is included.
The steps to install QGIS LR (QGIS 3) on Mac OS X are as follows:
Figure 1.14: Python 3.6.5 for MacOS from python.org
Installing Python 3.6.5 from the disk image is straight-forward, just follow the steps from the installer file and choose the default option. The first and the last step of the installation will be as followed figures :
Figure 1.16: Last step of the installation
QGIS 3 disk image installation file consists of numbered files for showing the sequence of the installation.
The first file is a text file that contain the instruction to install Python 3.6, it was already explained in the previous section.
Figure 1.18: Python 3.6 installation instruction
The second step is to install GDAL Complete package. The steps are also easy to follow with the first and the last step shown in the following images:
Figure 1.20: Last step of GDAL installation
The next step is QGIS installation. Like the previous installation, follow the sequence of installation and accept the default options to install QGIS.
Figure 1.22: Last step of QGIS installation
QGIS 3 for Mac can be started by double-clicking the icon in /Applications/QGIS3
QGIS LTR version can be installed on Mac OS X Mountain Lion (10.8) and newer.
Installation instructions are in the Read Me on the disk image. This package uses the system Python 2.7 - other distributions are not supported. It also requires the NumPy and Matplotlib packages on the disk image. Install packages in the numbered order. If an older major version is being upgraded (2.16 or older), delete QGIS.app from your Applications folder before installing this version.
Figure 1.25: QGIS 2.18 Read Me file
Figure 1.26: First step in GDAL Complete installation
Figure 1.28: First step in matplotlib installation
QGIS 2.18 for Mac can be started by double-clicking the icon in /Applications/QGIS
Figure 1.30: QGIS 2.18 in Mac OS X
Warning
This tutorial is now obsolete. A new and updated version is available at Searching and Downloading OpenStreetMap Data (QGIS3)
Getting high quality data is essential for any GIS task. One great resource forfree and openly licensed data is OpenStreetMap(OSM) . The OSM database consits of streets, localdata as well as building polygons. Getting access to OSM data in a GIS formatis integrated in QGIS. This tutorial explains the process for searching,downloading and using OSM data in QGIS.
Search for London in OSM database, browse and select a part of the city, andextract all pub locations as a shapefile.
Note
If you do not see any data - make sure you are online - as the basemap tilesare fetched from the internet. You can also use the Pan tool to move themap canvas slightly, which will trigger a refresh of the basemap.
london.osm..osm extension is an text file in the OSMXML format. We first need toconvert it into a suitable format that is easy to consume in QGIS. Go toVector ‣ OpenStreetMap ‣ Import topology from XML.Note
Now that we do not need the OSM Place Search functionality, you canclick the close button to remove it from the main window. If you need to useit again, you can enable it from View ‣ Panels ‣ OSMplace search.. (Windows) or Settings ‣ Panels ‣ OSM place search.. (Linux).
london.osm as the Input XML file.Name the Output SpatiaLite DB file as london.osm.db. Makesure the Create connection (SpatiaLite) after import button ischecked.london.osm.db file contains all feature types in the OSM database -Points, Lines and Polygons. GIS layers typically contain only one type offeature, so you need to choose one. Since we are interested in pointlocations of pubs, here you need to choose Point (nodes) as theExport type. You would choose Polylines (open ways)if you wanted to get the road network. Name the Output layername as london_points. GIS data has 2 parts to it - location andattributes. We are also interested in the name of the pub - not justits location, so we need to export that information as well. Click onLoad from DB under Exported tags section. This willfetch all attributes from the london.osm.db file. Checkname and amenity tags. See OSM Tags to learn more about whateach attribute means. Make sure the Load into canvas whenfinished is checked, and click OK.london_points loaded in QGIS. Notethat this contains ALL points in the OSM database for the viewport.Since we are interested only in pubs, we need to write a query to selectonly those. Right click on london_points layer and selectOpen Attribute Table.london_points layerand choose Save Selection As...london_pubs.shp. Leave all other options as they are andmake sure the Add saved file to map option is checked. ClickOK.london_pubs in the QGIS canvas. Uncheckthe london_points layer as we don’t need that anymore.