Graphs in VB.Net

Cartesian Plane

The Cartesian Plane is the usual graph surface we are taught in school.
It consists of the x and y axes.

In Visual Basic.Net, drawing is done using the System.Drawing library.

With Visual Basic.Net, drawing is usually done in the paint method of a window form or picture box.

However, there is a subtle difference between the way we use graphs and the Visual Basic form:
The y-axis of the Visual Basic form is measured from the top and increases as you move downwards.

Drawing on the Visual Basic Form

In Visual Basic, the Window's Form would represent something like a graph book; and this graph book is plotted or drawn on using code.

Create a new visual basic Windows Forms Application project ; call it Dymetric_VB.
Create a new visual basic class file; call it Facet.

Type out the adjoining VB.Net code to see what the windows form looks like.

VB.Net code for Form Class

Public Class Dymetric
    Private cycle As New EllipticalRegion

    Private do_simulation As Boolean = False

    ' decide what course of action to take
    Public Sub decideAction(sender As Object, g As Graphics, click_check As Boolean)
        If do_simulation And click_check Then
            ' do animation
            cycle.play(sender, g)
            do_simulation = False
        Else
            ' Put ball on screen
            cycle.prep(sender, g)
            do_simulation = True
        End If
    End Sub
End Class

Facet class

Public Class Facet

    Dim screen_rect As Rectangle
    Dim response_btn As New Button()

    Public Sub formFeatures(control As Object)
        'Set window position, width and height
        screen_rect = Screen.PrimaryScreen.Bounds
        control.SetDesktopBounds(0, 0, screen_rect.Width, screen_rect.Height)

        ' Set a display text
        sender.Text = "usingMaths.com"

        ' Set a background colour
        sender.BackColor = System.Drawing.Color.Orange

        ' Set an icon image
        Dim path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().CodeBase)
        path = New Uri(path).LocalPath
        Try
            sender.Icon = New Icon(path & "\usingMaths.ico")
        Catch ex As Exception
            ' Well, just go on and use default pic
        End Try
    End Sub

End Class

Important: Get the logo image(.ico) used in the code here and save it to the same folder(directory) as your code files.
For Visual Studio, this folder should be C:\Users\user_name\Documents\Visual Studio 20**\Projects\Dymetric_VB\Dymetric_VB\bin\Debug.

Drawing Reference

For a thorough explanation of drawing graphics in Visual Basic, please see the following links:

Drawing Graphics in Visual Basic - Step by step guide on using Visual Studio for Visual Basic graphics.

Graphics for Visual Basic 6.0 Users - largely apt for Visual Basic beginners; Knock your head out!!