QGIS - Revision history

Snehalathak at 09:18, 22 July 2020

2020-07-22T09:18:44Z

Snehalathak at 09:18, 22 July 2020

2020-07-22T09:18:28Z

Snehalathak at 09:16, 22 July 2020

2020-07-22T09:16:43Z

Snehalathak at 09:14, 22 July 2020

2020-07-22T09:14:49Z

Snehalathak: Created page with "'''QGIS''' QGIS (previously known as '''Quantum GIS''') is a free and open-source cross-platform, desktop geographic information system (GIS) application that supports viewin..."

2019-04-25T12:09:23Z

Created page with "'''QGIS''' QGIS (previously known as '''Quantum GIS''') is a free and open-source cross-platform, desktop geographic information system (GIS) application that supports viewin..."

New page

'''QGIS'''

QGIS (previously 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 analyse and edit spatial information, in addition to composing and exporting graphical maps. QGIS supports both raster and vector layers; vector data is stored as point, line, or polygon features. Multiple formats of raster images are supported and the software can georeference images. QGIS integrates with other open-source GIS packages, including PostGIS, GRASS GIS, and MapServer. Plugins written in Python or C++ extend QGIS's capabilities. Plugins can geocode using the Google Geocoding API, perform geoprocessing functions, which are similar to the standard tools found in ArcGIS, and interface with PostgreSQL/PostGIS, SpatiaLite and MySQL databases.

The Spoken Tutorial Effort for QGIS has being contributed by '''Dr. Snehalatha Kaliappan''' from '''IIT-Bombay''' and '''Prajwal.M''' from '''NIT Suratkal'''.

https://script.spoken-tutorial.org/skins/common/images/button_bold.png
__TOC__

==Basic Level==

'''1. Installation of QGIS'''

* System requirements to install QGIS
* Add QGIS repositories on Ubuntu Linux OS
* Installation of QGIS on Ubuntu Linux OS
* Visit the Official QGIS Website
* Download QGIS installer for Windows 10
* Installation of QGIS on Windows 10
* Download QGIS installer for Mac OS X
* Installation of QGIS on Mac OS X
* Open and show QGIS interface

'''2. Downloading GIS Datasets'''

* Basic introduction to GIS
* Download open source vector datasets from Natural Earth Data website
* About geospatial data
* About vector data
* View vector data in QGIS
* Save the map in .qgs format
* Download raster dataset from Bhuvan website
* About raster data
* View raster data in QGIS

'''3. Coordinate Reference Systems'''

* Add layers to the projections in QGIS
* Change the color of the layer
* Resize the panels on the canvas
* View metadata information for layers in QGIS
* Save selected features from a layer to a new layer
* Re-project and overlay data layers of different projections together
* Delete a layer from the dataset

'''4. Digiiizing Map Data'''

* Create Point and Polygon shape files
* Digitize Point and Polygon shape files
* About Toggle editing and Add Feature tools
* Open attribute table for Point feature
* Open attribute table for Polygon feature
* Change style and color for Point and Polygon features

'''5. Importing Spreadsheets'''

* Import speadsheets in CSV format to create a Point layer
* Convert Point layer to a Polyline layer
* About QGIS Geoalgorithm
* About WMS layers
* Select a WMS map from Bhuvan website
* Load WMS (Web Map Service) layers in QGIS

'''6. Vector Data Styling'''

* Load vector data in QGIS
* Open attribute table for the layer
* Learn to style vector layers using,
Single symbol styling
Categorized styling
Graduated styling
* Show how to Label features

'''7. Geometric Properties of Vectors'''

* Show attribute table for a shapefile layer
* Show selected features from attribute table on the map
* Change the CRS of the layer
* Add columns to the attribute table
* Calculate statistics for the attributes using Field Calculator tool

'''8. Raster Data Styling'''

* Information about download and save example files from the Code files link
* Change Coordinate Reference System for the given layer
* Use Identify Features tool to view the pixel value
* Change the style of the raster map
* About raster properties
* View metadata information
* Write an expression in the raster calculator

@@ Line 5: / Line 5: @@
 The Spoken Tutorial Effort for QGIS has being contributed by '''Dr. Snehalatha Kaliappan''' from '''IIT-Bombay''' and '''Prajwal.M''' from '''NIT Suratkal'''.
-The scripts for these tutorials were reviewed by Prof. Pennan Chinnasamy, CTARA, IIT-Bombay
+The scripts for these tutorials were reviewed by '''Prof. Pennan Chinnasamy, CTARA, IIT-Bombay'''
 https://script.spoken-tutorial.org/skins/common/images/button_bold.png

← Older revision		Revision as of 09:18, 22 July 2020
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	The Spoken Tutorial Effort for QGIS has being contributed by '''Dr. Snehalatha Kaliappan''' from '''IIT-Bombay''' and '''Prajwal.M''' from '''NIT Suratkal'''.		The Spoken Tutorial Effort for QGIS has being contributed by '''Dr. Snehalatha Kaliappan''' from '''IIT-Bombay''' and '''Prajwal.M''' from '''NIT Suratkal'''.
		+
		+	The scripts for these tutorials were reviewed by Prof. Pennan Chinnasamy, CTARA, IIT-Bombay

	https://script.spoken-tutorial.org/skins/common/images/button_bold.png		https://script.spoken-tutorial.org/skins/common/images/button_bold.png

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 * Re-project and overlay data layers of different projections together
 * Delete a layer from the dataset
@@ Line 56: / Line 55: @@
 * Open attribute table for Polygon feature
 * Change style and color for Point and Polygon features
@@ Line 74: / Line 72: @@
 * Open attribute table for the layer
 * Learn to style vector layers using,
-    Single symbol styling
+Single symbol styling
-    Categorized styling
+Categorized styling
-    Graduated styling
+Graduated styling
 * Show how to Label features
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 * Add map elements in the composer (add a new map, grid, images, label, scale, inset map)
 * Export the map
 '''10. Creating Dataset using Google Earth Pro'''
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 Save the layers in Kml format
 Open the points layer and boundary layer in QGIS
 '''11. Plugins'''
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 * View 3D visualization of a map layer using Qgis2threejs Plugin
 * Settings in the Plugins menu
 ==Intermediate Level==
 '''12. Table Joins and Spatial Joins'''
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 * Join the attribute tables of two data sets having same spatial data (Spatial Join)
 * Save the Project
 ==Advanced Level==
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 * Analysis of results after running the Nearest Neighbour Analysis algorithm
 * Save the project
 '''14. DEM Analysis'''
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 * Show Hillshade of DEM
 * Show Symbology for the DEM layer
 '''15. Create Contour Lines'''
 * Add DEM on QGIS map canvas