Difference between revisions of "Gnuplot/C2/Example-scripts-and-demo-folder/English"
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| − | || '''>load | + | || '''>load 'simple.dem' ''' |
|| To load the '''script''', type '''load space''' within single quotes '''simple dot dem''' | || To load the '''script''', type '''load space''' within single quotes '''simple dot dem''' | ||
Revision as of 17:27, 3 September 2019
| Visual Cue | Narration |
| Slide Number 1
Title Slide |
Welcome to the tutorial on Example Scripts and Demo Folder. |
| Slide Number 2
Learning Objectives |
In this tutorial, we will learn,
|
| Slide Number 3
System and Software Requirement |
To record this tutorial, I am using
and
|
| Slide Number 4
Pre-requisites |
To follow this tutorial,
learner must be familiar with high school level Mathematics. |
| Slide Number 5
Extract gnuplot-5.2.6 folder |
At the time of installation, we downloaded and extracted the gnuplot folder.
Generally, the folder gnuplot-5.2.6 would be in the Downloads folder. |
| Slide Number 6
Extract gnuplot-5.2.6 folder |
If you had saved it elsewhere, then use that location for the next steps. |
| Slide Number 7
Missing gnuplot folder |
What should you do in case the gnuplot folder is missing on your machine?
You have to follow the steps explained in the prerequisite tutorials in this series. |
| Open file manager, go to Downloads, gnuplot-5.2.6 and demo folder | Open file manager.
Click on the File Manager icon. In my machine, this icon is located on the menu bar at the bottom. Navigate to Downloads, gnuplot-5.2.6 and then to demo folder. |
| Scroll/highlight | Notice the various files in the folder. |
| Press Ctrl+Alt+T keys | We will now open a terminal by pressing Ctrl, Alt and T keys simultaneously. |
| cd Downloads/gnuplot-5.2.6/demo | Type cd space Downloads slash gnuplot-5.2.6 slash demo and press Enter.
We are in the demo directory, which contains the example files. |
| Type ls and press enter | Type ls to list the files in the demo directory. |
| Hover mouse over the .dem extension files | Notice there are several files with dot dem extension. |
| Scroll up | They are simple text scripts, which are used to generate plots. |
| Ctrl shift k on rdp machine | Let me clear the screen. |
| Now let's look at the structure of an example script using a text editor.
I will use gedit text editor. You can use any other editor of your choice. | |
| Type gedit simple.dem and press enter | Type gedit space simple dot dem and press Enter.
Windows users may open the file in Notepad. |
| The script file opens in the text editor window. | |
| Hover mouse near required files in header.
Hover mouse next to the three functions in plot command |
Details about this plot are mentioned in the header.
The required data files are also mentioned. This script plots three functions together. |
| Hover mouse next to left and right key in script | Scroll down to view the entire file.
This is the structure of a script file. |
| Close gedit | Now, close the text editor window. |
| Clear screen. | I will clear the terminal.
Next, let's run this script in gnuplot and generate the plot. |
| Go to terminal. | Go to the terminal. |
| >gnuplot
Press enter |
In the terminal, type gnuplot and press Enter. |
| Hover mouse near gnuplot prompt | The prompt changes to gnuplot prompt.
To execute a command in the terminal, press Enter after typing it. I will not mention this separately. |
| Ctrl shift k on rdp machine | I will clear the terminal. |
| >load 'simple.dem' | To load the script, type load space within single quotes simple dot dem |
| Click on graphics window. | A graphical window opens.
Click on this graphics window. |
| Hover mouse next to sin(x), atan(x) and cos(atan(x)) | Three functions, sin x, atan x and cos atan x are plotted. |
| Scroll further in axis limits | Using arrow keys, scroll, left, right, up and down within the plot.
Doing this allows us to scroll further in the axis limits. This feature is enabled in the script file. |
| Hover mouse next to “press enter to continue” and press enter | Simple dot dem can plot many graphs.
Go through the script file again, at this stage. |
| Go to terminal | To see the next plot, do the following.
Go to the terminal by clicking on it. We can read a message Hit return to continue. |
| Hit return and click on Graphics window. | Press the Enter key to continue.
Click on this graphics window. From now on, you have to do this every time to get the next plot. |
| Show the change in graphics window | Immediately, the next script and it's function gets plotted. |
| Press enter in terminal | Press Enter again, as shown in the prompt to plot other functions from the script. |
| Show graphics window. | Likewise, you can scroll through some more example files in the demo directory. |
| Press Ctrl + C | Press Ctrl and C keys in the terminal, to come back to the gnuplot prompt. |
| Close graphical window | Now I will close this graphical window. |
| Now, I will open a 3D plot example file. | |
| load ‘hidden2.dem’ and enter | Load the hidden2 dot dem file on the terminal.
Use the command as shown before to load the script file. |
| Show the graph | A graphics window opens. |
| Go terminal press enter, view graph , repeat for 3 graphs | Go through the 3 examples of the 3D plots this script can generate. |
| Close the graphics terminal. | Then close the graphics window. |
| I encourage you to try other example files in this folder. | |
| Press q | Type q to exit gnuplot. |
| Open web browser. | Many example scripts are available online for gnuplot, as well. |
| Open web browser. | I will show how to access the example files online in the next step.
Open a web browser. |
| Go to, gnuplot.sourceforge.net/demo | In the web browser, go to the URL as shown here. |
| Scroll down and show | Notice that there are several examples available for users to learn from. |
| Hover mouse over the routines | 2D and 3D graphs, histograms and curve fitting are few capabilities of the software. |
| Click on Simple functions | Under Basic 2D plot styles, click on the simple functions link. |
| Hover mouse over graph, pan right | The left side shows the graphical plots.
The simple scripts on the right side generate the plots. |
| Scroll down pan left | Scroll down the page and notice the various styles seen in the plots on the left side. |
| Hover mouse over graph | Notice the variations in symbols, color, legends, line style and filling area. |
| Learners may use this page to learn the various commands and options. | |
| Slide Number 8
Help Forum |
If we need help at any time, we can go to this URL |
| Browser >> https://sourceforge.net/p/gnuplot/discussion/
Point to the Register link at the top left. |
Here we can see previously asked questions and the corresponding replies.
We can also post our questions and doubts after we register. |
| Slide Number 9
Summary |
Now let's summarize.
In this tutorial, we learned
|
| Slide Number 10
Assignment |
For assignment activity, please do the following:
|
| Slide Number 11
Spoken Tutorial Project |
This video summarises the Spoken Tutorial Project
Please download and watch it. |
| Slide Number 12
Spoken Tutorial workshops |
The Spoken Tutorial Project Team conducts workshops and gives certificates.
For more details, please write to us. |
| Slide Number 13
Forum for specific questions: |
Post your timed queries in the forum. |
| Slide Number 14
Acknowledgement |
Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India. |
| This is Rani from IIT Bombay. Thank you for joining. |
