Loading GPS data from a file. Downloading GPS data from a device. Uploading GPS data to a device. Defining new device types. GPS, the Global Positioning System, is a satellite-based system that allows anyone with a GPS receiver to find their exact position anywhere in the world.
GPS is used as an aid in navigation, for example in airplanes, in boats and by hikers. The GPS receiver uses the signals from the satellites to calculate its latitude, longitude and sometimes elevation. Waypoints, routes and tracks are the three basic feature types in GPS data. QGIS displays waypoints in point layers, while routes and tracks are displayed in linestring layers. There are dozens of different file formats for storing GPS data.
To load a GPX file, you first need to load the plugin. Activate the GPS Tools checkbox. GPS Tools. Create new GPX Layer. See section Downloading sample data for more information about the sample data. Use the Browse… button to select the GPX file, then use the checkboxes to select the feature types you want to load from that GPX file.
Each feature type will be loaded in a separate layer when you click OK. GPS units allow you to store data in different coordinate systems.
Version 1. Here, you select the file that you want to import and the file typewhich feature type you want to import from it, where you want to store the converted GPX file and what the name of the new layer should be.
Note that not all GPS data formats will support all three feature types, so for many formats you will only be able to choose between one or two types. Here, we select the type of GPS device, the port that it is connected to or USB if your GPS supports thisthe feature type that you want to download, the GPX file where the data should be stored, and the name of the new layer. If none of the available types work with your GPS device, you can create a new type see section Defining new device types.
The port may be a file name or some other name that your operating system uses as a reference to the physical port in your computer that the GPS device is connected to. This tool is very useful in combination with the vector-editing capabilities of QGIS. It allows you to load a map, create waypoints and routes, and then upload them and use them on your GPS device.
There are lots of different types of GPS devices. You do this by using the GPS device editor, which you start by clicking the Edit Devices button in the download or the upload tab.QGIS until known as Quantum GIS  is a free and open-source cross-platform desktop geographic information system GIS application that supports viewing, editing, and analysis of geospatial data. QGIS functions as geographic information system GIS software, allowing users to analyze and edit spatial information, in addition to composing and exporting graphical maps.
Multiple formats of raster images are supported, and the software can georeference images. Inalong with release of version 2.Introduction to QGIS
QGIS has a small install footprint on the host file system compared to commercial GISs and generally requires less RAM and processing power; hence it can be used on older hardware or running simultaneously with other applications where CPU power may be limited.
QGIS is maintained by volunteer developers who regularly release updates and bug fixes. As of [update]developers have translated QGIS into 48 languages and the application is used internationally in academic and professional environments. Several companies offer support and feature development services. It can be used for adding multiple map views, labels, legends, etc. Many QGIS training opportunities are available including dedicated YouTube Channels,   online tutorials,  and textbooks .
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Top 5 QGIS Plugins
Older version, still maintained. Latest version. Latest preview version. Future release. Retrieved 24 February — via GitHub. Retrieved 1 January Interested in learning QGIS?
I offer certification courses and advanced learning materials. Visit spatialthoughts. Plugins are a great way to extend the functionality of QGIS. You can write plugins using Python that can range from adding a simple button to sohpisticated toolkits. This tutorial will outline the process involved in setting up your development environment, designing the user interface for a plugin and writing code to interact with QGIS. We will develop a simple plugin called Save Attributes that will allow users to pick a vector layer and write its attributes to a CSV file.
Qt is a software development framework that is used to develop applications that run on Windows, Mac, Linux as well as various mobile operating systems.
QGIS itself is written using the Qt framework. For plugin development, we will use an application called Qt Creator to design the interface for our plugin. Download and install the Qt Creator software from SourgeForge. Since we are developing the plugin in Python, we need to install the python bindings for Qt. The method for installing these will depend on the platform you are using. For building plugins we need the pyrcc4 command-line tool. Install the package QGIS. Install the Homebrew package manager.
Install PyQt package by running the following command:. Depending on your distribution, find and install the python-qt4 package. On Ubuntu and Debian-based distributions, you can run the following command:. Any kind of software development requires a good text editor. If you already have a favorite text editor or an IDE Integrated Development Environmentyou may use it for this tutorial. Otherwise, each platform offers a wide variety of free or paid options for text editors.
Choose the one that fits your needs. Python is very sensitive about whitespace and this setting will ensure tabs and spaces are treated properly. There is a helpful QGIS plugin named Plugin Builder which creates all the necessary files and the boilerplate code for a plugin. Find and install the Plugin Builder plugin.
FLO-2D Plugin – QGIS
See Using Plugins for more details on how to install plugins. This is another helper plugin which allows iterative development of plugins.
Find and install the Plugin Reloader plugin.Interested in learning QGIS? I offer certification courses and advanced learning materials. Visit spatialthoughts.
Plugins in QGIS add useful features to the software. Plugins are written by QGIS developers and other independent users who want to extend the core functionality of the software. These plugins are made available in QGIS for all the users.
In this tutorial, you will learn how to enable Core Plugins as well as download and install External Plugins. You will also learn how to locate the plugin from the QGIS menu once they are installed. Core plugins are already part of the standard QGIS installation. To use these, you just need to enable them. External plugins are available in the QGIS Plugins Repository and need to be installed by the users before using them.
An easy way to browse and install these plugins is by using the Plugin Manager tool. Sometimes you are looking for a specific plugin, but cannot find it in the Get more tab.
It maybe because the plugin is marked Experimental. Here is how to install experimental plugins. The New tab will appear only temporarily once you enable the experimental plugins. The next time you open Plugin Managerthe experimental plugins will show alongside regular plugins in the Get more tab. This work is licensed under a Creative Commons Attribution 4. Searching and Subscribe to my mailing list. Open QGIS. Even if this is your first time using QGIS, you will see a lot of plugins listed under the Installed tab.
Check on the checkbox next to Spatial Query Plugin. This will enable the plugin and you will be able to use it. One thing to note is that plugins have the ability to insert menu items at various locations and create new panels and toolbars. Sometimes it is difficult to know how to find the newly enabled tools. Once clue is to look in the plugin discription. Here the description says Category: Vector. That indicates that the plugin would be found under the Vector menu once enabled.
Click Close. Click on Get more tab. Here you will see a list of plugins listed. As you start typing qui in the search box, you will see the search results below. Click on the QuickWKT. Next, click on Install plugin button to install it. Once the plugin is downloaded and installed, you will see a confirmation dialog.
If you noticed, there was no mention of the plugin category in the description. That makes it hard to determine how to access the newly installed plugin.I have been using QGIS 2. So here is a list of my favorite top 5 QGIS plugins!
It was love at first use for the OpenLayers plugin. Now I do have some issues with it sometimes, but mainly the issue is that my main map is not in Web Mercator Projection. I really like GeoSearch plugin mainly for a quick search for locations during my analysis projects, but it does a lot more than what I usually utilize it for.
Apart from just simple search for a placename from a good list of sources I might add you can also calculate distances and calculate driving routes.
When searching for a placename in the GeoSearch tool you can specify what Geocoder you want to use and if you only want One Result. When the results of your search are returned, they are added to your map canvas as a temporary layer. I really like the Routing option that is in this plugin. This is a great plugin and I really think that is a must add plugin for anyone who uses QGIS on a regular basis.
So with a lot of blood, sweat, and maybe some tears, I was finally able to get a web map up. This Plugin is a must have to working with Vector Feature Data. This adds multiple sub-menus to the Vector menu with some tools that are very helpful for analyzing and manipulating vector feature data. This plugin has a lot a very useful tools when working with vector features. The most useful tool in my opinion is the Geocoding tools. I was introduced to this plugin just yesterday, and I knew I needed to include this in my post.
It has a very nice user interface and I really like the Preview option that it has. Happy Mapping! This site uses Akismet to reduce spam. Learn how your comment data is processed. Alle Plugins finden sich in QGis unter dem Punkt […].
About the routing function is supported by the Google Maps. For some reason, the openlayers plug-in on my QGIS 2. Hire a GISpro. Imprint and data privacy. Post date This comment form is under antispam protection.
Allows you to create map books easily. Saved me a lot of time on a project with a pipeline split into 20 maps - all I had to do was provide the plugin with a layer of polygons for the locations of each map and a composer and it automatically turns each composer into an image file.
Numerical Digitise - Allows you to provide coordinates to create features. Very useful for creating a point at an exact coordinate quickly when someone gives me a site location rather than trying to click in the right location on the map. Time manager - Allows you to view data which has a time element to it. We use it to visualise ecological data over the course of a survey - looking to see if there are any parts of a study site that have more data at certain times of the survey period and where and when the most data occurs.
Import project - Allows you to load in layers from another project - you can choose which ones you would like to load. I find it very useful to set up a project with all of my base layers loaded and styled like Ordnance Survey mapping, site boundaries, buffers etcand then import these using this plugin when I am ready to incorporate them with other data.
Very useful for exporting data for reports. Photo2Shape - extracts georeferencing information from geotagged images. It allows us to visualise where photos were taken on a project site so people can remember where they were when they took the photo.
Table manager - allows you to manage a tables structure rename, insert and delete columns etc. Shapefile splitter - can split a shapefile into separate files by the values in a column. We use this when we need to provide people with shapefiles that only contain one feature type.
Now it is called processing. OpenLayers If you are working with wgs84 system. This can give you a basemap. This makes it easier to perform operations and visualize results. Apart from the easy-to-add background of Openstreetmap or Google satellite just to check if a layer with an exotic CRS is well-placed, I have managed to cut some geotiffs with official maps into tiles, and have them delivered by an apache localhost.
This needs some tweaking in the openlayers plugin code unfortunately after every update of the plugin againbut gives me a wide choice of map backgrounds even when being offline and thus having no WMS service at hand. GPS Tools I also use frequently to add waypoints taken outdoor to my local databases.Besides the source code developers also message translators, people who write documentation, those who report bugs and wishes and more are involved. Why so late? Because the World Wide Web WWW became available in the s along with tools like browsers and such, followed by the development of distributed source code management tools.
See here for historic details on our various bug trackers. Git comes with numerous advantages, yet we needed to decide which hosting platform to use. Options where github. Through a survey we found out that the preference among contributors is GitHub. If all fails say, one day GitHub no longer being a reasonable choice the import of our project from GitHub to GitLab is always possible. A series of links had to be updated. Martin Landa invested days and days on that thanks!!
As the date for the trac migration we selected r as it was the first SVN commit after the years in CVS. The migration of trac bugs to github i. The following circumstances could be identified:. We came up with several lookup tables, aiming at catching all variants. Note that the complete issue migration is still to be done as of Nov. In order to avoid users being flooded by emails due to the parsing of user contributions which normally triggers an email from github we reached out to GitHub support in order to temporarily disable these notifications until all source code and selected issues were migrated.
The issue conversion rate was 4 min per trac bug to be converted and uploaded to github. Fairly slow but likely due to the API rate limit imposed and the fact that the migration script above generates a lot of API requests rather than combined ones.
Note to future projects to be migrated: use the new gihub import API unfortunately we got to know about its existence too late in our migration process. In order to guide the user when reporting new issues, we will develop a small template — forthcoming. We changed the settings from SVN post-hook to Github commit notifications and they flow in smoothly into the grass-commit mailing list.
Join it to follow the development. Usually this happens because what I think will be a trivial change snowballs into something much more sweeping. I thought I would record here how to deal with situations like this