Iswariyas at 12:51, 30 August 2021

2021-08-30T12:51:38Z

Iswariyas at 12:45, 30 August 2021

2021-08-30T12:45:28Z

Iswariyas: Created page with "'''Title of script: User-defined variables in Xcos''' '''Author:Rupak Rokade and Anandajith TS''' {| class= "wikitable" ! '''Visual Cue''' ! '''Narration''' |- | Show Slide:..."

2021-08-07T06:22:56Z

Created page with "'''Title of script: User-defined variables in Xcos''' '''Author:Rupak Rokade and Anandajith TS''' {| class= "wikitable" ! '''Visual Cue''' ! '''Narration''' |- | Show Slide:..."

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'''Title of script: User-defined variables in Xcos'''

'''Author:Rupak Rokade and Anandajith TS'''

{| class= "wikitable"
! '''Visual Cue'''
! '''Narration'''
|-
|
Show Slide:

'''Title Slide'''
| Hello and welcome to the Spoken Tutorial on “ '''User-defined Variables in Xcos'''”
|-
|
Show Slide:

'''Learning Objectives'''
|
In this tutorial, we will learn how to:

<ul>
<li><blockquote>Pass '''variables''' from '''Scilab Console''' to '''Xcos.'''</blockquote></li>
<li><blockquote>Pass '''variables''' from '''context menu''' to '''Xcos.'''</blockquote></li></ul>
|-
|
Show Slide:

'''System Requirements'''
|
To record this tutorial, I am using

<ul>
<li><blockquote>'''Windows 10 OS'''</blockquote></li>
<li><blockquote>'''Scilab 6.1.0'''</blockquote></li></ul>

The process demonstrated in this

tutorial is identical in '''Linux''' OS also
|-
|
Show Slide:

'''Prerequisite'''

https://www.spoken-tutorial.org
|
Before practising this tutorial, a learner should have :

<ul>
<li><blockquote>Basic knowledge of '''Scilab and Xcos.'''</blockquote></li></ul>

If not, then go through the '''Scilab''' spoken tutorials on this website.
|-
|
Show Slide:

'''Variables'''
|
There are two ways to define '''variables''' in '''Xcos''':

<ul>
<li><blockquote>Defining variables from the '''Scilab Console.'''</blockquote></li>
<li><blockquote>Defining variables from the context '''menu.'''</blockquote></li></ul>
|-
|

| First we will create a simple '''simulation.'''
|-
|
Show slide

Simulation - Blocks used
|
For this we used the below blocks

<ul>
<li><blockquote>'''RAMP'''</blockquote></li>
<li><blockquote>'''CLOCK underscore c''' and</blockquote></li>
<li><blockquote>'''CSCOPE'''</blockquote></li></ul>
|-
| Show '''Scilab workspace window'''
|
Open '''Scilab.'''

Type in '''‘xcos'''’ in the '''Scilab console''' and press '''enter.'''

Two windows will open :

<ul>
<li><blockquote>'''Palette browser''' and the</blockquote></li>
<li><blockquote>'''Untitled-Xcos window.'''</blockquote></li></ul>
|-
|
Show '''Xcos window'''

'''Sources palette>>RAMP block'''
|
To create the '''simulation''' we will have to import the necessary '''blocks.'''

<ul>
<li><blockquote>In the '''Palette browser-Xcos''' window, click on '''Sources''' palette.</blockquote></li>
<li><blockquote>In the right panel, select the '''RAMP''' block.</blockquote></li>
<li><blockquote>Now, drag and drop this block in the '''Untitled-Xcos''' window.</blockquote></li></ul>
|-
| '''Sinks palette>>CSCOPE block'''
|
<ul>
<li><blockquote>Go to the '''Palette browser-Xcos window'''.</blockquote></li>
<li><blockquote>Click on the '''sinks palette'''.</blockquote></li>
<li><blockquote>In the right panel, scroll down and select the '''CSCOPE''' block.</blockquote></li>
<li><blockquote>Drag and drop it next to the '''RAMP''' block in the '''Untitled-Xcos window'''</blockquote></li></ul>
|-
| '''Event handling>>Clock_c block'''
|
<ul>
<li><blockquote>Again go to the '''event handling palette''', select the '''CLOCK underscore c block.'''</blockquote></li>
<li><blockquote>Then drag and drop it above the '''CSCOPE block''' in the '''untitled -Xcos window'''</blockquote></li></ul>
|-
| Show '''Xcos window'''
|
Next we will interconnect all the '''blocks.'''

<ul>
<li><blockquote>Connect black '''output''' port of '''RAMP''' to black '''input''' port of '''CSCOPE.'''</blockquote></li>
<li><blockquote>Connect the red '''output''' port of '''CLOCK underscore c''' to the red '''input''' port of '''CSCOPE'''.</blockquote></li>
<li><blockquote>Our simulation is ready.</blockquote></li></ul>
|-
| Show '''Xcos window'''
|
<ul>
<li><blockquote>Then right click on the RAMP '''block''' and select the block '''parameters.'''</blockquote></li>
<li><blockquote>Here we set the '''slope parameter''' to '''‘a’''' and click '''OK''' .</blockquote></li>
<li><blockquote>It shows an error as '''‘a’''' is not defined.</blockquote></li>
<li><blockquote>This is correct because we never defined the '''variable ‘a’''' before.</blockquote></li></ul>
|-
| '''Show Scilab workspace window'''
|
Our first way to define a '''variable''' is using the '''Scilab console.'''

For this, go to the '''Scilab console''' .

Type '''‘a=1’''' and press '''enter'''
|-
| '''Show Xcos window'''
|
Now come back to the '''Untitled-Xcos window''' .

<ul>
<li><blockquote>Right click on the '''RAMP block''' and select the '''block parameter''' option in the menu.</blockquote></li>
<li><blockquote>Again we set the '''slope parameter''' to '''‘a’''' and click '''ok.'''</blockquote></li></ul>
|-
|

|
To start the '''simulation''', go to the toolbar of the '''Untitled-Xcos window'''.

Then click on the '''Start''' button that is of the shape of the play button.
|-
|

|
We will see a '''warning message''' saying that there is '''no continuous time state'''.

This can be ignored in this example. So click on '''OK.'''
|-
| '''Show graphic window'''
| Now, we can see that the '''slope''' of the output '''RAMP signal''' changes to '''a''' in the graphic window.
|-
|

|
Next we will see how to define variables

using the '''context menu''' in the '''Xcos toolbar.'''
|-
| Show '''workspace window'''
|
<blockquote>First we will have to clear the previous value of '''a'''. For this :
</blockquote>
<ul>
<li><blockquote>Go to the '''scilab console window'''</blockquote></li>
<li><blockquote>Type in '''‘clear a’''' in the '''console''' and press '''enter''' .</blockquote></li>
<li><blockquote>Now type '''‘a’''' and press Enter</blockquote></li>
<li><blockquote>We can see that the '''console''' shows ‘'''a’''' as undefined.</blockquote></li></ul>
|-
|
Show '''Xcos window''' and '''context menu'''

'''a=1'''
|
<ul>
<li><blockquote>Next, in the menu bar of the '''Untitled-Xcos window,''' click on '''Simulation'''.</blockquote></li>
<li><blockquote>In the drop down menu select the '''set context''' option.</blockquote></li>
<li><blockquote>'''set context''' popup window appears.</blockquote></li>
<li><blockquote>Type a=1 in the window and click ok.</blockquote></li></ul>
|-
| Show '''Xcos window'''
|
Now we execute the simulation again''':'''

<ul>
<li><blockquote>Go to the '''toolbar''' and click '''start.'''</blockquote></li>
<li><blockquote>Click '''ok''' in the warning window.</blockquote></li>
<li><blockquote>Then switch to the graphic window</blockquote></li>
<li><blockquote>We can see that the '''slope''' of '''output RAMP''' changed to '''‘a’'''.</blockquote></li></ul>
|-
|
Show Slide :

'''Advantages of Context menu'''
|
<ul>
<li><blockquote>Using the '''set context menu''' we can include the variables in the simulation itself.</blockquote></li>
<li><blockquote>We need not carry an additional '''sci file''' just to initialize the variable.</blockquote></li></ul>
|-
|
Show Slide:

'''Summary'''
|
This brings us to the end of this tutorial. Let us summarise.

In this tutorial, we have learnt to:

<ul>
<li><blockquote>Pass variables from '''Scilab''' '''Console''' to '''Xcos.'''</blockquote></li>
<li><blockquote>Pass variables from '''context menu''' to '''Xcos.'''</blockquote></li></ul>
|-
|
Show slide ;

'''Assignment'''
|
As an assignment, please do the following

<ul>
<li><blockquote>Change the value of variable ‘a’ to 5 using the Console window and context menu.</blockquote></li>
<li><blockquote>Check the output in the graphic window.</blockquote></li></ul>
|-
|
Show Slide:

'''About Spoken Tutorial Project'''
|
The video at the following link summarises the '''Spoken Tutorial''' project.

Please download and watch it.
|-
|
Show Slide:

'''Spoken Tutorial Workshops'''
|
The '''Spoken Tutorial''' Project Team conducts workshops and gives certificates.

For more details, please write to us
|-
|
Show Slide:

'''Answers for THIS Spoken Tutorial'''
| Please post your timed queries in this forum.
|-
| Show Slide: '''FOSSEE Forum'''
| Please post your general and technical queries on '''Scilab''' in this forum.
|-
|
Show Slide:

'''Textbook Companion project'''
|
The '''FOSSEE''' team coordinates the '''Textbook Companion project'''.

We give '''Certificates''' and '''Honorarium''' to the contributors.

For more details, please visit this site..
|-
| Show Slide: '''Lab Migration'''
|
The '''FOSSEE''' team coordinates the '''Lab Migration project'''.

For more details, please visit this site.
|-
|
Show Slide:

'''Acknowledgement'''
| Spoken Tutorial and FOSSEE projects are funded by MoE, Government of India.
|-
|
Show Slide :

'''Thank you'''
|
This is Iswariya Sasikumar from FOSSEE intern 2021, IIT Bombay signing off.

Thanks for joining.
|}

@@ Line 333: / Line 333: @@
 '''Acknowledgement'''
-| Spoken Tutorial and FOSSEE projects are funded by MoE, Government of India.
+| '''Spoken Tutorial''' and '''FOSSEE''' projects are funded by '''MoE, Government of India'''.
 |-
+|
@@ Line 340: / Line 340: @@
 '''Thank you'''
+|
-This is Iswariya Sasikumar, a FOSSEE intern 2021, IIT Bombay signing off.
+This is '''Iswariya Sasikumar''', a FOSSEE intern 2021, IIT Bombay signing off.
 Thanks for joining.
 |}

@@ Line 17: / Line 17: @@
 '''Learning Objectives'''
+|
 In this tutorial, we will learn how to:
@@ Line 28: / Line 32: @@
 '''System Requirements'''
+|
 To record this tutorial, I am using
@@ Line 57: / Line 67: @@
 '''Variables'''
+|
 There are two ways to define '''variables''' in '''Xcos''':
@@ Line 69: / Line 83: @@
 |-
+|
-Show slide
+Show slide:
+|
 For this we used the below blocks
@@ Line 81: / Line 101: @@
 |-
 | Show '''Scilab workspace window'''
+|
 Open '''Scilab.'''
@@ Line 96: / Line 124: @@
 '''Sources palette&gt;&gt;RAMP block'''
+|
 To create the '''simulation''' we will have to import the necessary '''blocks.'''
@@ Line 105: / Line 139: @@
 |-
 | '''Sinks palette&gt;&gt;CSCOPE block'''
+|
 <ul>
@@ Line 113: / Line 151: @@
 |-
 | '''Event handling&gt;&gt;Clock_c block'''
+|
 <ul>
@@ Line 119: / Line 161: @@
 |-
 | Show '''Xcos window'''
+|
 Next we will interconnect all the '''blocks.'''
@@ Line 294: / Line 340: @@
 '''Thank you'''
+|
-This is Iswariya Sasikumar from FOSSEE intern 2021, IIT Bombay signing off.
+This is Iswariya Sasikumar, a FOSSEE intern 2021, IIT Bombay signing off.
 Thanks for joining.
 |}

Scilab/C4/User-defined-variables-in-Xcos/English - Revision history

Iswariyas at 12:51, 30 August 2021

Iswariyas at 12:45, 30 August 2021

Iswariyas: Created page with "'''Title of script: User-defined variables in Xcos''' '''Author:Rupak Rokade and Anandajith TS''' {| class= "wikitable" ! '''Visual Cue''' ! '''Narration''' |- | Show Slide:..."