In this tutorial, we will learn Flowgorithm Turtle Graphics symbols. There are three symbols associated with Turtle graphics in Flowgorithm. The new symbols are as follows:
- Forward Symbol
- Turn Symbol
- Home Symbol
Before you use the new symbols ensure that you have the latest 3.x version installed on your machine.
Go to the Help >> About menu option and check if you have the latest version installed on the machine.
Turtle Graphics Symbols
Let’s learn the new flowchart symbols. Right-click on the flow control line.
We can find the three new symbols under the Turtle graphics section.
|Turtle Symbol||Symbol Name||Purpose|
|Home||The Home symbol returns the turtle to its starting position and sets the Turtle angle to 90 degrees. The Home of the turtle is the center of the graphics window.|
|Turn||The Turn symbol will make the turtle turn its head to some degree. It changes the angle by rotating the Turtle left or right by a specified number of degrees.|
|Forward||The Forward symbol will make the turtle draw a line or move by a specific distance. By default, the turtle will draw a line with the Pen Down option checked, and the symbol changes to the Draw symbol.|
If the pen is up the Turtle moves by the specified distance and the symbol changes to the Move symbol.
Sample Illustration of how turtle draws with the flowchart operations:
The XML representation of the flowchart symbols in the .fprg file.
|XML||Flowchart Turtle Symbols|
The XML tag for the turtle Home symbol. The turtle will return to the starting position on the graphic window.
|<turn expression=”90″ rotate=”right”/>|
The XML tag for the turtle Turn symbol. The turtle rotates 90 degrees in the right direction.
|<forward expression=”100″ pen=”down”/>|
The XML tag for the turtle Forward symbol. The turtle draws a line of 100 distance.
Flowchart Examples that use the symbols:
Draw Parallel Lines:
Draw a Circle:
Flowgorithm flowchart tutorials on this website:
For more information on the Flowgorithm tool, please visit the official website at: