GChemPaint/C2/Basic-operations/English

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Title of the tutorial: Basic-operations

Author: Madhuri Ganapathi

Key words: Add and Edit text, Select, Move, Flip and Rotate objects, Group and Align Objects, Cut, copy, paste and delete objects, video tutorial.


Visual Cue Narration
Slide Number 1

Title Slide

Hello everyone.

Welcome to the tutorial on Basic Operations in GChemPaint.

Slide Number 2

Learning Objectives

In this tutorial, we will learn to-
  • Open an existing file
  • Add and Edit text
  • Select, Move, Flip and Rotate objects
  • Group and Align Objects
  • Cut, copy, paste and delete objects.
Slide Number 3

System Requirements

Here I am using,

Ubuntu Linux OS version 12.04.

GChemPaint version 0.12.10.

Slide Number 4

Pre-requisites

To follow this tutorial, you should be familiar with,

GChemPaint chemical structure editor.

If not, for relevant tutorials, please visit our website.

Switch to GChemPaint application

Dash home >>In the Search bar type GChemPaint Click on the GChemPaint icon.

To open a new GChemPaint application,

Click on Dash home.

In the Search bar that appears, type GChemPaint.

Click on the GChemPaint icon.

Let's begin the tutorial by opening an existing file.
Click on File >>Open Click on File menu, select Open and click on it.
A window containing files and folders opens.
Select the file named “propane” From here, Select the file named “propane”.
Click on Open Click on Open, to open the file.
Let's add some text below the propane structure.
Select “Add or modify a text”tool from toolbox.

Point to the Property page opens.

Select “Add or modify a text” tool from the tool box.

Text tool's Property page opens.

Point to the fields. The Property page contains fields like - Family, Style, Size, Underline, and a few others.
Point to Family >> scroll list Family field has a list of font names.

Let's scroll down the list.

Select Arial Black I will select Arial Black from the Family.
Click on the Display area Click on the Display area below Propane structure.

You can see a blinking cursor enclosed in a green box.

Type ”Propane” Let's type the name of the compound as “Propane”.
Change Style to Bold Italic. Let's now change the Style to Bold Italic.

Select the text “Propane” click on Bold Italic.

Increase fontsize to 16 I will increase the fontsize to 16.

Let's scroll down to 16 and click on it.

Observe the changes in the text.
Point to Underline field.

Show the drop down list >> select Single

Next, let's use Underline feature.

It has a drop down list with options- None, Single, Double and Low.

Let's select Single.

Point to text. Let's change the color of the text.

Default color of the text is “black”.

Point to the color field.

Click on drop down list.

Select color to “purple”

Click on the drop down arrow of the color field.

You can see different colors here. I will select “purple”. <Pause the narration>

Text position range>> -100 to 100 We can also change the position of the text.

Position field has range from -100 to 100.

Select text>>click on up arrow >>Text moves up from Position “0” to “100” Let's see how text changes.

Select text click on the up arrow triangle with the mouse.

Text moves upwards.

Select text>> click on down arrow>>Text moves down from Position “0” to “-100” Likewise if we click on down arrow triangle, text moves downwards.

<Pause the narration>

Bring text to normal position.

Type "0" in the position field >> click on the display area

Let's bring the text to normal position.

Type 0 in the position field and click on Display area.

Slide Number 5

Assignment

Here is an assignment for you.
  • Open the assignment of the first tutorial.
  • Label the structures as n-hexane and n-octane.
  • Change font name, font size, underline and colour the text.

Your completed assignment should look like this.

Let's now learn to select and move objects.
From the Tool box, click on >>Select one or more objects. From the “Tool box” click on the tool “Select one or more objects”.
Click on pentane Click on “pentane”.
Press the left mouse button>> drag it to a different position >> release the mouse button. Without releasing the mouse button, drag it to a different position.

Now, release the mouse.

Next let's to rotate an object.
To rotate objects,>>click on “Select one or more objects” tool. To rotate the objects, click on “Select one or more objects” tool.
point to the tools.

Flip the selection horizontally,

Flip the selection vertically and

Rotate the selection.

The properties page has tools,

Flip the selection horizontally,

Flip the selection vertically

Rotate the selection.

To use these tools,
Click on pentane structure>> Select Rotate the selection>> move the mouse pointer Click on Pentane.

Select Rotate the selection option.

Go to the Display area and place the mouse over the object.

Move the mouse in the clock-wise and anti-clock-wise direction.

Observe the rotation of the object.

Now, let's learn to flip the object.
Flip the Pentane structure horizontally. Let's flip the Pentane structure horizontally.
Click on Flip the selection horizontally tool>>flip structure horizontally. Click on Flip the selection horizontally tool to flip the structure horizontally.
Slide Number 6

Assignment

Pause this tutorial and Flip the selection vertically on your own.
Let's now group and align objects

To group objects, select all objects.

Go to Edit menu >> click on Select all.

Press CTRL+A

For this, go to Edit menu and click on Select All.

you can also press CTRL and A keys simultaneously.

Right click on any one of the objects. Right-click on any one of the objects.
In the context menu >>select Group and/or align objects option. The context menu opens.

Select Group and/or align objects option.

Point to the dialog box. A dialog box pops up.
Click on Group check-box. Click on Group check-box.
Uncheck Align and Space evenly options. Uncheck Align and Space evenly options, if they are selected.
Click on OK button. Click on OK button.

We see that the objects are grouped together.

Press CTRL+A >> select objects Let us now align the objects.

Press CTRL+A to select all objects.

Right click on any one of the objects. Right-click on any one of the objects.
In the context menu >>select Group properties option The context menu opens.

Select Group properties option.

Click on Align check-box. Click on Align check-box.
Click on the drop-down list.

point to Normal, Top, Mid-height, Bottom, Left, Center and Right.

Align option has a drop-down list.

It has some options to align objects.

Select “Left” >> click OK I will select “Left” click on OK button.

Observe the changes.

Slide Number 7

Assignment

Pause this tutorial and align objects with other align options on your own.
Let's now learn to use cut, copy and paste options.
Go Edit menu >> Point to Cut, Copy, Paste and Clear. Go to Edit menu.

It contains basic Edit options like Cut, Copy, Paste and Clear.

Point to options The common short-cut keys for these options

CTRL+X to Cut

CTRL+C to Copy

CTRL+V to Paste

will work in GChemPaint as well.

using “Select one or more objects” tool>> cut and paste objects>>at different places of diplay area Select one or more objects using “Select one or more objects” tool.

click on the object.

Let's press CTRL+X to cut it.

Press CTRL+V to paste the object at a different position on the Display area.

Observe that when we cut the object, it is deleted from its original place.

Copy and paste objects>>at different places of diplay area. Next, let's copy and paste the object at a different place on the diplay area.

click on the object, press CTRL+C to Copy and press CTRL+V to Paste.

Observe that when we Copy the object, it is not deleted from its original place.

Select all objects >>click on clear. To clear the Display area, select all objects.

press CTRL+ A to select all objects.

Go to Edit menu, click on Clear.

Go to Edit menu>>select Undo >>press CTRL+Z >> to Undo To get back our original structures, go to Edit menu click on Undo.

Or press CTRL+Z.

Delete the object using Delete key from keyboard. To delete an object using the Delete Key on the Keyboard, Select the object press Delete key from Keybord

Press Delete.

Point to Eraser tool.

Let's now learn to use the Eraser tool to delete part of the structure.

Select Eraser tool>>move mouse near one structure. Select Eraser tool from toolbox.

Place the mouse near any one of the structures.

Delete red colored part of the structure. Part of the structure turns red in color.

Click on the red colored part of the structure to delete it.

Undo the changes Let's now Undo the changes to get our original structures.
Click on Save the current file button on tool bar Let's now save the file.

Click on Save the current file button on toolbar.

With this, we come to the end of the tutorial.

Let's summarize.

Slide Number 8

Summary

In this tutorial, we have learnt how to
  • Open an existing file
  • Add and Edit text to the display area
  • Select, Move, Flip and Rotate objects
  • Group and Align Objects
  • Cut, Copy, Paste and Delete objects
Slide Number 9

Assignment

As an assignment, use Eraser tool and convert
  • n-octane structure to n-pentane
  • n-hexane structure to Ethane.

The Output of Assignment should look like this.

Slide number 10

Acknowledgement

Watch the video available at this URL.

http://spoken-tutorial.org/What_is_a_Spoken_Tutorial

It summarises the Spoken Tutorial project.

If you do not have good bandwidth, you can download and watch it.

Slide Number 11 The Spoken Tutorial Project Team:

Conducts workshops using spoken tutorials

Gives certificates to those who pass an online test

For more details, please write to

contact@spoken-tutorial.org

Slide number 12 Spoken Tutorial Project is a part of the Talk to a Teacher project

It is supported by the National Mission on Education through ICT, MHRD, Government of India

More information on this Mission is available at this link

http://spoken-tutorial.org/NMEICT-Intro ]

This is Madhuri Ganpathi from IIT Bombay signing off. Thank you for joining.

Contributors and Content Editors

Madhurig