Welcome to the spoken tutorial on Create and Manage Tools.
In this tutorial we will learn to, Customize the tool bar Create a new tool Manage the created tool and Open a new GeoGebra window and check the created tool.
To record this tutorial, I am using; Ubuntu Linux OS version 16.04 GeoGebra version 5.0.438.0-d
To follow this tutorial, learner should be familiar with GeoGebra interface. For the prerequisite GeoGebra tutorials, please visit this site.
I have already opened the GeoGebra interface on my machine.
For this tutorial I will un-check the axes
We will begin by customizing the tool bar.
Click on Tools menu and select Customize Toolbar option. The Customize Toolbar window opens.
The window has a drop-down to choose the views. By default, General view is selected.
The Toolbar box has a menu button next to each tool, to show the related tools.
Below the Toolbar box, we have the Up and Down arrow buttons.
I will select Line tool
These buttons are used to move the selected tool up or down the list.
At the bottom left, we have Restore Default Toolbar button, to restore the default toolbar.
Click on Restore Default Toolbar button.
Next we have Tools box. This is used to separate the tools from the Toolbar' box.
In the Toolbar box, click on the menu button next to Move to show the related tools.
Click on Move tool and then click on the Remove button.
Notice that the Move tool has moved to the Tools box.
Click on the menu button to close the Move menu.
Next click on the menu button next to Perpendicular Line to show the related tools.
Now click on Tangents tool and then click on the Remove button.
Notice that Tangents tool has also moved to the Tools box.
Click on menu button to close the Perpendicular Line menu.
Let's separate these tools from their related tools.
Select Move tool in the Tools box and click on Insert button. The Move tool is inserted as a separate tool.
Next, select Tangents tool and click on the Insert button.
Tangents tool is also inserted as a separate tool.
Now click on Apply button to apply the changes. Then click on the Close button to close the window.
Notice that Move tool and Tangents tool are shown separately on the toolbar.
Now we will learn to create a new tool.
We will begin by drawing tangents to a circle.
Click on the Circle with Centre and Radius tool. Click in the Graphics view.
Circle with Center and Radius text box opens.
In the Radius field, type 3 and click on OK button at the bottom. A circle with centre A and radius 3 cm is drawn.
Drag the boundary of the Algebra view to see the equation of the circle.
Drag the boundary to see the Graphics view clearly.
Now using Point tool we will mark an external point B on the Graphics view.
Click on Tangents tool. Then click on point B and then click on circle c.
Two tangents are drawn to the circle c from point B.
Click on the Tools menu and select Create New Tool option.
The Create New Tool dialog box opens.
In the box we have Output Objects, Input Objects and Name & Icon tabs.
By default Output Objects tab opens.
In the Output Objects tab, there is a drop-down to select objects.
From the drop-down, select Circle c with center A and radius 3 Line f: Tangent to c through B. Line g: Tangent to c through B.
Next click on the Input Objects tab. In this tab, Point A and Point B are already selected.
Click on Name & Icon tab. In this tab we can type the Tool name and Tool help.
For the Tool name I will type Tangents to a circle.
Observe that, as I type the Tool name, the Command name automatically gets filled.
In the Tool help box, I will type Click two points.
Observe that Show in Toolbar check-box is already checked.
Lastly click on Finish button.
Geogebra Info message box with a text New tool created successfully! appears.
Click on OK button to close this message box.
Observe that, a new tool Tangents to a circle is seen on the toolbar, with a tool tip.
Let's delete all the objects from the interface.
Now let us use the tool that we have just created.
Click on the Tangents to circle tool and click two points in the Graphics view. Tangents to a circle are drawn.
We will now see how to manage the tool we have created.
Click on Tools menu and select Manage Tools option.
The Manage Tools dialog box opens.
This dialog box has Delete, Open, Save As and Share buttons.
We will save the Tangents to a circle tool. Click on Saves As button.
Save asdialog box opens.
In the File name text box I will type Tangents hyphen circle(Tangents-circle).
Note that, in the Files of type, GeoGebra Tools(.ggt) is already selected.
Select a location to save the file. I will select Desktop.
Then click on Save button at the bottom.
And click on Close button to close the dialog box.
Now I will close the Geogebra window. I'll click on File and select Close.
The Close File box opens.
It asks Do you want to save your changes?
In the box, I'll select Don't Save button as I have already saved the file.
Now we will open the saved file.
I had saved it on my Desktop as Tagents-circle.ggt.
We can open the file by double clicking on it. Or right-click and select Open With GeoGebra option.
Please note, the new tool that we have created will be available only in this file.
We don't see the tool we created, if we open a new GeoGebra window using Dash Home.
You can check it yourself. The new tool is not available in the new GeoGebra window.
Let us summarize what we have learnt.
In this tutorial we have learnt to, Customize the tool bar Create a new tool Manage the created tool Open a new GeoGebra window and check the created tool.
As an assignment, Create a new tool to draw altitudes of a triangle and mark the orthocenter.
Your completed assignment should look like this.
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This is Madhuri Ganapathi from, IIT Bombay signing off. Thank you for watching.