Difference between revisions of "QGIS/C2/Plugins/English-timed"
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Latest revision as of 15:08, 27 January 2021
| Time | Narration |
| 00:01 | Welcome to this tutorial on Plugins in QGIS. |
| 00:06 | In this tutorial, we will learn to,
Enable Core Plugins. |
| 00:13 | Install an External Plugin. |
| 00:16 | Locate a Plugin on QGIS interface. |
| 00:20 | Install QuickMapServices Plugin. |
| 00:23 | Download OpenStreetMap data. |
| 00:26 | Use QuickOSM Plugin to convert OSM data to shapefile. |
| 00:32 | View 3D visualization of a map layer using Qgis2threejs Plugin. |
| 00:39 | To record this tutorial, I am using
Ubuntu Linux OS version 16.04 |
| 00:47 | QGIS version 2.18 |
| 00:51 | Mozilla Firefox browser 54.0 and |
| 00:55 | A working Internet connection |
| 00:58 | To follow this tutorial, you should be familiar with QGIS interface. |
| 01:06 | For the prerequisite QGIS tutorials, please visit this website. |
| 01:12 | About plugins, |
| 01:14 | QGIS Plugins add useful features to the software. |
| 01:19 | They are written by developers and other independent users. |
| 01:24 | Plugins option is available on the menu bar on the QGIS interface. |
| 01:30 | Plugins have the ability to, insert menu items at various locations on the interface and create new panels and toolbars. |
| 01:42 | Here I have opened QGIS interface. |
| 01:46 | Click on Plugins on the menu bar. |
| 01:50 | From the drop-down, select Manage and Install plugins. |
| 01:55 | Plugins dialog-box opens. |
| 01:58 | Here you find menus which allow the user to enable/disable, install/uninstall and upgrade plugins. |
| 02:08 | You can use the filters on the left panel to find a specific plugin. |
| 02:14 | By default All menu is selected. |
| 02:18 | Please read the information given on the right-panel. |
| 02:22 | Here all the available plugins are listed. |
| 02:25 | This includes Core plugins and external plugins. |
| 02:30 | Click on the Installed menu from the left panel. |
| 02:34 | Read the instructions given on the right panel. |
| 02:38 | Click on the check-box or double-click on the name to activate or deactivate the plugin. |
| 02:45 | Plugins installed on your QGIS are listed here. |
| 02:50 | Some of these plugins are Core plugins installed during QGIS installation. |
| 02:57 | In order to use a Core plugin, we need to enable or activate the plugin. |
| 03:03 | Let us locate Processing plugin. |
| 03:06 | In the search bar type Processing. |
| 03:10 | The name appears below the search bar. |
| 03:13 | Click on the name of the plugin. |
| 03:16 | You will see its details on the right panel. |
| 03:20 | Processing plugin is a Core plugin. |
| 03:23 | Click on the check-box next to the plugin name, to enable or activate the plugin. |
| 03:30 | Close the Plugins dialog-box. |
| 03:33 | Processing plugin is now enabled on the menu bar. |
| 03:37 | Again open the Plugins dialog-box. |
| 03:41 | Clear the search bar and type, Spatial Query. |
| 03:46 | The name of the plugin appears below the search bar. |
| 03:50 | This plugin is already enabled. |
| 03:54 | Click on the name of the plugin. |
| 03:57 | This is Core plugin which is installed during QGIS installation. |
| 04:03 | Core plugins can only be enabled or disabled. |
| 04:08 | They cannot be uninstalled from QGIS. |
| 04:12 | Hence the buttons are not highlighted here. |
| 04:16 | In the plugin description, the Category is Vector. |
| 04:20 | Which means we can find this plugin in the Vector menu once it is enabled.
Close the dialog-box. |
| 04:29 | Spatial Query tool is available in the Vector menu and also as tool on the tool bar. |
| 04:37 | Let us now install an external plugin. |
| 04:40 | Again open Plugins dialog-box.
Clear the search bar. |
| 04:46 | Click on Not installed menu from the left panel. |
| 04:50 | The list of all available plugins that are not installed are shown here. |
| 04:56 | Let us now install QuickMapServices plugin. |
| 05:00 | In the search box at the top of the Plugins dialog-box, type QuickMapServices. |
| 05:07 | In the search results below click on QuickMapServices plugin. |
| 05:13 | QuickMapServices plugin has a collection of easy to add basemaps. |
| 05:19 | Click on Install plugin button at the bottom-right corner. |
| 05:24 | Wait for the installation to complete. Close the Plugins dialog-box. |
| 05:30 | Click on Web menu on the menu bar. |
| 05:34 | You will see the newly installed QuickMapServices plugin in the drop-down. |
| 05:40 | Click on QuickMapServices. |
| 05:43 | A sub-menu opens with options like Landsat, NASA, OSM, etc. |
| 05:51 | OSM is the acronym for Open Street Map. |
| 05:55 | From the sub-menu, click on OSM Standard. |
| 05:59 | Open Street Map of the world will be loaded on the canvas. |
| 06:05 | It represents physical features on the ground for example roads, buildings, etc. |
| 06:13 | Scroll the center mouse button to zoom in to Mumbai area. |
| 06:19 | Zoom again in the Thane region. |
| 06:23 | Click on Current CRS button on the status bar. |
| 06:28 | In the CRS selector, check the check-box for Enable On-The-Fly CRS transformation option. |
| 06:36 | From the Coordinate Reference system select WGS 84 EPSG 4326. |
| 06:45 | Click on OK button to close the box. |
| 06:49 | To download the map, click on Vector menu. |
| 06:53 | From the drop-down, click on OpenStreetMap option.
From the sub-menu select Download Data. |
| 07:03 | Download OpenStreetMap data dialog-box opens. |
| 07:08 | Extent from map canvas is selected by default.
Leave it as such. |
| 07:15 | Click on the button with 3 dots next to Output file field. |
| 07:20 | A dialog-box opens, type the filename as Thane.osm . |
| 07:28 | Select a suitable location. |
| 07:31 | I will select Desktop. Click on Save button. |
| 07:36 | In the Download OpenStreetMap data dialog-box, click on OK button. |
| 07:42 | On the status bar you can see the progress of the download and file size. |
| 07:49 | After the download is complete, successful download message will be displayed.
Click on OK button. |
| 07:58 | Close Download OpenStreet Map dialog-box. |
| 08:02 | The OSM file you have downloaded is only a data file. |
| 08:07 | To convert this data into a shapefile, you need a plugin called QuickOSM. |
| 08:14 | This plugin will help import OSM data into QGIS. |
| 08:20 | Back on the QGIS interface. |
| 08:23 | Click on the plugins menu. |
| 08:26 | Select Manage and Install Plugins. Plugins window opens. |
| 08:33 | In the search box under Not installed menu type QuickOSM. |
| 08:39 | In the search results below, click on QuickOSM. |
| 08:44 | Click on Install plugin button at the bottom- right corner to install it. |
| 08:50 | Wait for the installation to complete.
Click on Close button. |
| 08:57 | Click on Vector menu on the menu bar. |
| 09:01 | Click on QuickOSM.
From the sub-menu, click on QuickOSM. |
| 09:09 | QuickOSM dialog-box opens. |
| 09:13 | Click on OSM file option from the left panel. |
| 09:17 | In OSM file, click on browse and navigate to the Thane.osm file.
Click on Open button. |
| 09:27 | Click on check boxes for Points, Lines, Multilinestrings, Multipolygons if not already checked. |
| 09:37 | In QuickOSM dialog-box, click on Open button. |
| 09:42 | The process may take some time. |
| 09:45 | When the process is complete the status bar shows 100 percent. |
| 09:50 | Close the QuickOSM dialog-box. |
| 09:54 | OSM data is loaded on canvas. |
| 09:58 | Notice that layers are added in the Layers Panel. |
| 10:03 | Now we will create three dimensional visualization of vector layers. |
| 10:09 | Click on the menu item Plugins. |
| 10:12 | Select Manage and Install Plugins.
Plugins window opens. |
| 10:19 | In the search box at the top of the Plugins dialog-box, type Qgis2threejs. |
| 10:26 | Click on Qgis2threejs. |
| 10:30 | In the right panel, description of Qgis2threejs is given. |
| 10:36 | Click on Install plugin button in the bottom right corner to install it. |
| 10:42 | Wait for the installation to complete.
Click on Close button. |
| 10:48 | Qgis2threejs Plugin tool can be seen on the toolbar. |
| 10:54 | The plugin can also be found under Web menu on the menu bar. |
| 10:59 | In the Layers Panel, hide the Point, Lines and Multilinestrings layers. |
| 11:06 | Uncheck the check-boxes next to Lines, Points, Multilinestrings layers. |
| 11:14 | Only Multipolygons layer in visible on canvas. |
| 11:19 | Click on Qgis2threejs from toolbar. |
| 11:24 | Qgis2threejs dialog box opens. |
| 11:29 | In the dialog-box, click the check-box next to OSMFile in the Polygon section. |
| 11:36 | Click on Browse button next to Output HTML file path text box. |
| 11:42 | Output filename dialog-box opens.
Let us name the file as Buildings. |
| 11:50 | Select a suitable location to save the file. |
| 11:54 | I will choose Desktop. |
| 11:57 | Click on Save button at the bottom-right corner of the dialog-box. |
| 12:03 | In the Qgis2threejs dialog box, file path appears in the text box.
Click on Run button. |
| 12:13 | Wait till the process is complete, as shown on the status bar at the bottom. |
| 12:19 | Buildings html file opens in a new browser window. |
| 12:24 | Zoom in to see three dimensional buildings. |
| 12:29 | Back on the QGIS canvas. |
| 12:33 | Open Plugins dialog-box again. |
| 12:36 | Click on Settings menu from the left panel. |
| 12:40 | Under this menu you can use the following options.
1. Check for updates, 2. Show also experimental plugins, 3. Show also deprecated plugins. |
| 12:52 | Here we also have buttons to add external author repositories. |
| 12:58 | Demonstration on how to build a new plugin will be covered in the upcoming tutorials.
Close the dialog-box. |
| 13:08 | Let's summarize |
| 13:10 | In this tutorial we have learnt to,
Enable Core Plugins, Install an External Plugin, Locate a Plugin on QGIS interface, Install QuickMapServices Plugin. |
| 13:27 | Download OpenStreetMap data |
| 13:30 | Use QuickOSM Plugin to convert OSM data to shapefile. |
| 13:35 | View 3D visualization of a map layer using Qgis2threejs Plugin. |
| 13:41 | As an assignment,
Create three dimensional buildings map for Bangalore area. |
| 13:47 | Use OpenStreetMap data zoomed in to Bangalore area. |
| 13:53 | The video at the following link summaries the Spoken Tutorial project. Please download and watch it. |
| 14:01 | The Spoken Tutorial project team conducts workshops and gives certificates on passing online tests
For more details please write to us. |
| 14:13 | Please post your timed queries on this forum. |
| 14:17 | The Spoken Tutorial Project is funded by NMEICT, MHRD Government of India.
More information on this mission is available at the following link. |
| 14:31 | This tutorial is contributed by Vaishnavi Honap from College of Engineering Pune, Snehalatha Kaliappan and Himanshi Karwanji from IIT Bombay.
Thank you for joining. |
