Area of Circle Raptor Flowchart

Introduction

In this flowchart, we will calculate the area of a circle and display the graphics window if the radius is between 10 and 200 cm. If the radius of the circle is out of this range we just print the value in the console.

The values 10 and 200 are just arbitrary. The circle with a radius < 10 would just look like a small dot on the window. The circle with a greater radius would spill out of the graphic window.

 

IPO chart

Consider modeling an IPO chart for the flowchart before the flowchart design. Think about the input to the flowchart, processing statements, and the output of the flowchart. IPO chart is a handy tool to visualize in a tabular format.

 

Input	Process	Output
Input to the flowchart.	Computations that are done in the flowchart.	Output displayed by the flowchart

 

Math Formula

 

Area of Circle Flowchart

The following flowchart computes the area of the circle and displays the circle with the given radius.

To avoid small and big circles on the graphics window, the flowchart checks for the radius range (10, 200).

Output

Let’s run the flowchart with sample test cases to verify that it’s working as intended. If you find that the flowchart is not working as intended in the testing, we may need to verify and debug the flowchart.

Debugging a flowchart: https://www.testingdocs.com/debugging-a-raptor-flowchart/

 

Pseudocode

START
    Dim areaString
    Dim area
    Dim radius

    clear_console
    radius = 0
    area = 0
    PROMPT "Enter the radius of the circle(in cm):="
    INPUT radius
    area = pi * radius * radius
    areaString = "Area of the circle is " + area
  If radius > 10 And radius < 200 Then
    open_graph_window(500,500)
    draw_circle(250,250,radius,light_gray,true)
    display_text(20,20,areaString,black)
    Else
    MsgBox areaString
    End If
END

Input validation

Try to extend the flowchart and validate the user input to accept only positive radius values.

More Flowchart Examples

https://www.testingdocs.com/raptor-flowchart-examples/

Raptor Tutorial

Raptor Tutorials on this website can be found at:

https://www.testingdocs.com/raptor-a-flowchart-tool/

RAPTOR official website: https://raptor.martincarlisle.com/