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Drawing an Egg Shape !

Posted on 2013-11-27
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Last Modified: 2013-11-28
Here's an odd one...

How can I draw the shape of an egg on screen using vb.net ot c#.net code?
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Question by:Dodsworth
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Robert Schutt earned 500 total points
ID: 39681847
That depends on what you would describe as an egg shape. Eggs come in many shapes, the simplest being an ellipse. But as you're probably not asking for help on drawing an ellipse I think you're looking for something like this:
one possible egg shapeThis consists of a circle at the bottom and an ellipse (with a vertical radius 50 % larger than the circle) at the top, cut off at 0 and 180 degrees.

Just stick a panel on a form and try this:
    Private Sub Panel1_Paint(sender As System.Object, e As System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint
        Dim y1 As Integer = Panel1.Height
        Dim x1 As Integer = Panel1.Width
        Dim y2 As Integer = y1 / 2
        Dim x2 As Integer = x1 / 2
        Dim y4 As Integer = y1 / 4
        Dim x4 As Integer = x1 / 4
        Dim y8 As Integer = y1 / 8
        Dim x8 As Integer = x1 / 8
        With e.Graphics
            '.DrawLine(Pens.Gray, 0, y2, x1, y2)
            '.DrawLine(Pens.Gray, x2, 0, x2, y1)
            '.DrawEllipse(New Pen(Brushes.Gray, 3), x4, y4, x2, y2)
            '.DrawEllipse(New Pen(Brushes.Gray, 3), x4, y8, x2, y4 * 3)
            .DrawArc(New Pen(Brushes.Black, 3), x4, y4, x2, y2, 0, 180)
            .DrawArc(New Pen(Brushes.Black, 3), x4, y8, x2, y4 * 3, 0, -180)
        End With
    End Sub

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EDIT: if you're looking for a mathematical function to plot an egg, here's a page with lots of options: http://www.mathematische-basteleien.de/eggcurves.htm
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by:Dodsworth
ID: 39683000
Eggcellent ! The link was truely mind boggling !
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