View source for Marble/C3/Additional-Features-of-Marble/English-timed

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||'''Time'''
||'''Narration'''
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|| 00:01
|| Welcome to this Spoken Tutorial on '''Additional Features of Marble'''.

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|| 00:06
|| In this tutorial we will, learn about

Elevation Profile 
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|| 00:10
||  Gps information 
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|| 00:12
|| Day and night concept

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|| 00:14
|| Online services

Atmosphere and clouds
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||00:19
|| To record this tutorial, I am using,
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||00:21
|| '''Ubuntu Linux OS''', version 16.04

'''Marble '''version 1.12.20 and
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||00:30
|| A working Internet connection.

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||00:33
|| The process demonstrated in this tutorial is identical in,

'''Ubuntu Linux OS''', version 18.04
|-
|| 00:42
||  '''Marble '''version 2.2.20 
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|| 00:47
|| To practise this tutorial, learners should be familiar with  the '''Marble''' interface.
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||00:53
|| For the prerequisite '''Marble '''tutorials, please visit this site.
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|| 00:58
|| The files used in this tutorial are available in the '''Code Files''' link on this tutorial page. 

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||01:04
|| Please download and extract them. 

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||01:07
|| Make a copy and then use them while practising. 
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||01:11
|| I have downloaded and saved the files to my '''Desktop'''. 
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|| 01:16
|| I have opened the '''Marble '''interface in the '''OpenStreetMap view.'''

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||01:21
|| I will select Flat view option from the Mapview panel.
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|| 01:26
|| Let us go to the '''View''' menu and click on it.

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|| 01:30
|| Select '''Info Boxes''' and from the sub-menu click on the '''Elevation Profile''' option.

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|| 01:37
|| A box with a message appears.

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||01:39
|| '''Create a route or load a track from the file to view its elevation profile'''.

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|| 01:46
|| Elevation Profile shows the altitude of a route.

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||01:49
|| It helps to analyze the height of the hills and landforms. 

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|| 01:54
|| I will place the box at a convenient location.

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|| 01:58
|| I have created a route and its track from '''Mumbai''' to '''Vadodara''' on the map.
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||02:04
|| Route hyphen 2 dot kml file is given in the code files link of this tutorial.
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|| 02:10
|| To open the file, right-click on it  and select the option '''Open with Marble'''.

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||02:16
|| I have opened my route in the '''OpenStreetMap''' '''Flat view'''.
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|| 02:21
|| Place the mouse cursor inside the rectangular box.

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||02:24
|| Hover the mouse inside the box. 

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||02:28
|| We can see the altitude of different places appearing on the route.
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|| 02:33
|| Let us hide this '''Elevation Profile''' box.
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||02:37
|| Right click on the box.

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||02:39
|| From the context menu select '''Hide '''option to hide it. 
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|| 02:44
|| Let us learn about the gps information available in Marble.

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||02:49
|| Let us open the track of the existing route.

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|| 02:53
|| Go to the Location panel.

Click on the drop down button below '''Position Tracking'''.

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||02:59
|| Select '''Current Route''' option. 
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|| 03:02
|| Go to the '''View''' menu and select '''Info Boxes.'''

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||03:06
|| From the submenu select '''GpsInfo''' option.
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|| 03:10
|| A box with gps information appears on the left side of the interface. 

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||03:16
|| Notice the change in speed, and direction.
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|| 03:20
|| Now let us hide this box.

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||03:23
|| Right click on the box, select '''Hide''' option from the context menu.
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|| 03:29
|| Now we will disable the position tracking and close the route map.
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|| 03:34
|| As an assignment,

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||03:35
|| Explore the following options, Redisplay,  Speedometer and  Routing.
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|| 03:42
|| Now we will learn about the concept of day and night.
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||03:46
|| Let us zoom out to see the default view.

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||03:50
|| Go to Map view panel and select Globe view.
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|| 03:54
|| Go to the '''View''' menu and select, '''Sun Control''' option.

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||03:59
|| '''Sun Control '''dialog box opens.
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||04:02
|| I will place this dialog box to the left side of the interface.

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|| 04:07
|| Check the '''Sun Shading '''check box.

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||04:10
|| Select the '''Shadow '''radio button if not already selected.

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||04:15
|| Click on the '''Apply '''button.
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||04:18
|| Rotate and observe that globe turns into a day night mode.
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||04:24
|| Under''' Subsolar Point''', check '''Display Subsolar Point icon '''check box.

Click on the '''Apply '''button.
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|| 04:33
|| Click on the '''OK''' button in the box

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|| 04:37
|| '''Subsolar '''point is displayed on the globe.
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||04:40
|| Notice that portion facing the sun experiences day. 

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|| 04:44
|| The other half away from the Sun experiences night. 
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|| 04:49
|| In the dark portion we can see the Moon.

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||04:53
|| At any moment, half of the world is in daytime and half is in night time.

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|| 04:58
|| Now let us remove this subsolar point from the globe.

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||05:03
|| Go to the view menu and select  '''Sun Control '''option.

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||05:08
|| In the '''Sun Control''' dialog box, uncheck the '''Sun shading''' check box.

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|| 05:14
|| Then uncheck '''Display Subsolar Point icon '''checkbox.
 
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||05:20
|| Click on the '''Apply '''button.

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||05:23
|| Click on the '''OK''' button in the box.

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||05:26
|| The Subsolar point is not visible on the globe.
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|| 05:31
|| As as assignment,

Explore more about '''Subsolar point'''.

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|| 05:36
|| Go back to the''' Atlas''' view.

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|| 05:39
|| Again go to the '''View '''menu and click on  '''Online Services''' option.

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||05:45
|| These plugins display '''georeferenced Wikipedia '''articles as icons on the map.

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||05:52
|| In this version of Marble only '''Photos '''and '''Satellites '''plugins are enabled.
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|| 05:57
|| Click on the''' Photos''' plugin.

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||06:01
|| Notice that different photos appear on the globe.

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||06:05
|| Let us rotate the globe to see the various photos across the globe. 

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|| 06:10
|| Let us zoom in and locate India on the globe.
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||06:14
|| When we zoom in more photos appear.

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|| 06:18
|| I will click on one of the photos.
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||06:21
|| It opens with a '''Flickr''' photo sharing site.

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||06:25
|| '''Flickr''' is a popular image and video hosting service used by photographers.
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|| 06:31
|| The photo which I have selected is of '''Victoria Terminus'''.

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||06:35
|| We can see the name of the person who had shared this photo.

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|| 06:38
|| Let us close this '''flickr '''site.

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|| 06:42
|| The photos on the map were shared by people who had visited the place.

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|| 06:46
|| Let us zoom out and go back to the default view.

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||06:51
|| I will disable the '''Photos '''plugin.
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|| 06:54
|| Go to the '''View '''menu and select '''Online Services''' option.
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||06:59
|| Then click on ''' Photos''' plugin to hide the photos from the map.
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|| 07:04
|| Go to '''Map View panel''' and select '''Satellite view'''.

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|| 07:08
|| Satellite view is seen.
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|| 07:11
|| Then go to the view menu and click on '''Atmosphere.'''

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||07:16
|| We can see that a white layer has formed around the earth.

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||07:21
|| It shows the diffused reflection of the atmosphere around the Earth.
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|| 07:26
|| Go to '''View''' menu and select '''Clouds''' option.
   
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||07:30
|| We can see that the clouds have appeared on the globe.
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|| 07:35
|| Let us summarize.
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|| 07:37
|| In this tutorial we have, learnt about,

Elevation Profile ,  Gps information ,  Day and night concept,  Online services ,  Atmosphere and clouds
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|| 07:49
|| The video at the following link summarizes the Spoken Tutorial project.
Please download and watch it.
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|| 07:56
|| The '''Spoken Tutorial Project '''team: conducts workshops and gives certificates.
For more details, please write to us.
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|| 08:05
|| Please post your timed queries in this forum.
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|| 08:09
|| Spoken Tutorial Project is funded by, MHRD, Government of India.

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|| 08:14
|| This tutorial is contributed by Viji Nair and Madhuri Ganapathi from IIT Bombay. Thank you for watching.
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