More Mapping Booklets ». Free GIS-Related Software For The Mac. Unless noted, there are Windows version of these as well, and usually Linux, too. As I come across more Mac programs, I’ll put up posts on those additional ones, but will also eventually add them here as well.
Commonly referred to as GRASS, this is a free Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS is an official project of the Open Source Geospatial Foundation. Over the past decade Geographical Information Systems (GIS) have evolved from a highly specialized niche to a technology that affects nearly every aspect of our lives, from finding driving directions to managing natural disasters.
GRASS GIS is a general purpose raster/vector GIS combined with integrated image processing and data visualization subsystems. It includes a large number of modules for management, processing, analysis and visualization of georeferenced data. Unlike most proprietary GIS, GRASS provides complete access to its internal structure and algorithms. Advanced users who want to write their own GIS modules may therefore learn from existing modules as well as by reading the ``GRASS Programmer's Manual'. The documented GRASS GIS libraries with the Application Programming Interface (API) make the new module development more efficient and allow to integrate new functionality into GRASS. Applications can be also written with shell scripts to automate the GIS workflow.
GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. Author License Open Source Price FREE Released 2011-06-01 Downloads 730 Filesize 59.00 MB Requirements Installation Instal And Uninstall Keywords, Users' rating (7 rating).
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Here are to give you the incentive to give it a shot. But really, the best part is that you require: Zero budget. Zero experience. To get started with this powerful software.
READ MORE: Where Can You Download QGIS Software? Built on the shoulders of the open source GIS community, you can download this software from, the central hub of QGIS. It’s available for all major operating systems – Windows 32 and 64 bit and also Mac. When you start QGIS, you will see a large window called the map canvas. The map canvas will contain all of your map features.
The panel on the left is used to browse for and manage GIS data. Panels can be moved and docked at different locations. Toolbars are located above the map canvas. Toolbars have different functionality and they can be undocked and moved where you’d like them to be.
As is the case with most software, a menu bar is at the top. It has drop-downs to control QGIS including Project, Edit, View, Layer, Settings, Plugins, Vector, Raster, Database, Web and Help. When you save a QGIS, it will have a.QGS extension. This file type can be opened later similar to.TXT or.XLS file. QGIS is making rapid strides forward. QGIS is free and open source relying on volunteer efforts. Its massive support from the global community is unprecedented.
Each version has improved since its debut in 2002. Alaskan Gary Sherman wrote the first code for it with all the basic pan, zoom and draw tools found in every GIS. Periodically, QGIS releases new improvements on its software.
Currently, we stand at version 2.18. Have No Fear, the QGIS Plugins are Here To quickly get started, this QGIS guide will show how you to download a QGIS plugin. There are about 500 plugins available in the. The number of plugins are growing every day to add even more functionality to QGIS.
Click Plugins Manage and Install Plugins This will open your plugin manager. In the plugin manager, this where you can download, update, activate and deactivate them. Let’s add some data to the map canvas: Search for OpenLayers Plugin in the plugin manager. (The open layers plugin makes a variety of online data available to you). Click Install Plugin.
After this plugin is installed, it will be available to you in the top menu bar by clicking Web OpenLayers Plugin. You will see different layers to choose from including:. OpenStreetMaps (Topographic, Cycle Map, Landscape and Public Transportation).
Google (Physical, Streets, Hybrid and Satellite). Bing (Road, Aerial and Aerial with Labels). MapQuest (Open Aerial). Stamen (Toner, Watercolor and Terrain). Apple iPhotos (IPhotos Map) Add a layer to the map canvas by selecting it from the drop-down menu. You can navigate in the map canvas using the pan and zoom tools. These tools can be found in the map navigation toolbar.
Scrolling the wheel on your mouse up and down will zoom in and out. Holding the wheel on your mouse down will pan left, right, up and down. Visualize Data in the Three Dimensions QGIS 3D Visualization 2D can be a bit lame at times. There I said it. The catapults you to three-dimensions. This amazing plugin allow you to create an awesome 3D map in minute. After downloading and installing the plugin, here’s how to 3D visualize in QGIS: Step 1: Download elevation data (DEM) from Step 2: Add vector features or imagery to the map canvas.
Step 3: In the DEM tab, you can add vertical exaggeration to the DEM. In the point tab, add height to the map features. All you need to do to create a new shapefile is: Select the New Shapefile tool in the Manage Layers toolbar. From here, you can choose the feature geometry in points, lines or polygon.
![Best Free Gis Software For Mac Best Free Gis Software For Mac](/uploads/1/2/5/3/125391760/502074925.png)
You can select the encoding and coordinate reference system too. One difference that sets this apart from ArcMap is that you add attributes at this stage. Attribute data is information about your data in text, numbers or date format. You give your shapefile attributes a name, type (text, whole, decimal or date), width and precision. You can keep adding attributes by selecting the Add to attributes list button.
When you click OK, you will be prompted where and what name the new shapefile will be. After a shapefile is created, it will be added to the layer list in the left panel. To edit a layer: Highlight the layer list and click the Toggle Editing tool in the Editor toolbar. This will enable the editing tools. You add new nodes to geometry by clicking in the map canvas.
To finish the geometry, you simply right-click in the map canvas. From here, you fill in the attributes and can save the geometry and attributes by clicking Save Layer button. Adjust Symbols and Labels with Layer Properties The layer properties is how you can change the style, labels, joins and even the metadata of your data. You can access your layer properties by either double-clicking the layer or by right-clicking the layer and selecting Properties. On the left panel, there are tabs to change symbology, customize labels, modify joining tables and more.
In the layer properties, you can also create point, line and polygon symbols by adding several together. You can also adjust the transparency of features in the map.
In the labels tab, you can decide which labels to use. You can get surgical with labeling in QGIS. It’s not like any other GIS software. You can style labels with halos, transparencies, drop shadows and save it as a style file for later use. This is a high-level feature (similar to Adobe Photoshop) for beautiful cartographical output. Export Images, PDFs and SVGs in QGIS Print Composer In the composition panel, you can set the paper size, orientation, units and background color. Print composers are used to prepare maps for printing.
To add a print composer in QGIS, click Project New Print Composer. Give the new print composer a name. To add your map in the print composer, select the “Add Map” tool. And drag an area in the canvas. In the Item Properties tab, you can set the map scale, extents and even the rotation of the map.
The “Move Item” can move and resize the map window. The “Move Content” tool on the other hand, moves the geometry inside the map view. The Layout menu gives the option to add labels, legends, scalebars, north arrows.All items can be adjusted in the item properties tab. If you change something on the map, then you will have to refresh the view in print composer. To refresh your map in the print composer, click the “Update Preview” under the “Item Properties” tab.
Finally, to export a PDF map in QGIS: Click Composer Export as PDF. If you export as SVG, this gives you the option to import the map in Adobe Illustrator and update further. You can also export the map in a wide variety of image formats including JPG, PNG and TIF. Process Data Like a Boss with QGIS Geo-algorithms It’s essential this QGIS guide gives the lowdown on all the readily available tools in QGIS. And there’s no shortage of tools straight out-of-the-box. The easiest way to find a GIS processing tool is searching for it. At the top of the processing toolbox, the search bar enables you to locate the tools you need.
There are over 600 tools available in the processing toolbox: The Geoalgorithms are grouped into separate categories: DOMAIN SPECIFIC TOOLS are discipline-specific tools like cost analysis, geostatistics, hydrology, terrain analysis, viewsheds and lighting. IMAGES TOOLS is to manipulate, calibrate, analyze and segment satellite and aerial imagery. RASTER TOOLS are designed for analysis, creation, filtering and generating statistics with raster data sets. RASTER – VECTOR TOOLS are tools used for either the conversion or raster to vector (or vice versa) and tools used combining the use of raster grids and vector files. VECTOR TOOLS is a mammoth collection of tools for analysis, creation, geometric overlay, statistics, table and selection algorithms for vector points, lines and polygons. The most common GIS processing tools like buffering, clipping and unions can be found in vector and raster menu. The QGIS processing toolbox can be accessed through the Processing menu item.
In the processing menu, there is a graphical modeller – similar to ArcMap’s model builder interface. The graphical modeller assists users automate a sequence of operations and GIS processes. QGIS Open Source: A Voluntary Project In this QGIS guide, we covered all the essential information.
From adding GIS data to creating it from adding plugins to processing data with geoalgorithms from symbolizing points, lines and polygons to exporting maps in print composer. You now have all the essential tools to maneuver yourself around in QGIS. You can now sit in the driver’s seat, with a roadmap in hand, GPS on the dash, and put yourself in cruise control using this QGIS guide. But remember: QGIS succeeds in a big way because it’s an open source project.
Volunteering developers stand by their product with pride. People are encouraged to donate to the QGIS project and support the dedicated team of volunteers and organisations. Remember its name because it’s here to stay. Now, it’s your turn: We’ve provided you a blueprint for QGIS open source software.
But this QGIS guide has just scratched the surface. Download QGIS today, leverage its tools and map with confidence. Cons. Lack of 3D integration.
Graphical modeller is buggy. No automatic topology error fixing Summary The speed of QGIS developing is stunning.
It’s gone from zero to hero in the world of GIS software. QGIS offers EVERYONE the ability to dip themselves and explore geography like never before. Its History. In July 2002 Gary Sherman in Alaska starting writing open source QGIS 0.0.1 (pan, zoom, draw, line colors) (releases with pets on splash screen). January 2009 – Quantum GIS 1.0 (explore data, compose maps, create data, publish maps on the internet, Python plugins). For QGIS 2.0 New vector API, integration of SEXTANTE geoprocessor, symbology and labelling overhaul in September 2013. February 23: milestone long-term release for QGIS 3.0.