| Twirl |
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The Twirl effect distorts the image as if it had been Twirled. The result is like an image that has been twisted. |
| Syntax | |
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[C#]
static void Twirl(Bitmap bitmap, double angle, double extent, Nullable<double> speed);
[Visual Basic]
Shared Sub Twirl(bitmap As Bitmap, angle As Double, extent As Double, speed As Nullable(Of Double))
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| Params | |
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| Name | Description | |||
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| bitmap | The bitmap to process | |||
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| angle | The amount that the image should be twirled. A typical value might be 120 degrees. | |||
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| extent | How far the effect should extend. A typical value might be 50%. | |||
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| speed | There is a general speed versus quality tradeoff. Higher values produce faster results at the expense of quality. If null is provided this defaults to 8. | |||
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| Notes | |
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None.
| Example | |
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[C#]using (Bitmap bm =
(Bitmap)Bitmap.FromFile(Server.MapPath("rez/felix-tchverkin-7pkN83wDZwY-unsplash.jpg")))
{
Effects.Twirl(bm, 120, 50, 8);
bm.Save(Server.MapPath("IG8_Effects_Twirl1.jpg"));
}
using (Bitmap bm =
(Bitmap)Bitmap.FromFile(Server.MapPath("rez/felix-tchverkin-7pkN83wDZwY-unsplash.jpg")))
{
Effects.Twirl(bm, 360, 50, 8);
bm.Save(Server.MapPath("IG8_Effects_Twirl2.jpg"));
}
using (Bitmap bm =
(Bitmap)Bitmap.FromFile(Server.MapPath("rez/felix-tchverkin-7pkN83wDZwY-unsplash.jpg")))
{
Effects.Twirl(bm, 120, 100, 8);
bm.Save(Server.MapPath("IG8_Effects_Twirl3.jpg"));
}
Here we apply a Twirl edge detection filter using different radii. Ouput files are shown below.
felix-tchverkin-7pkN83wDZwY-unsplash.jpg
IG8_Effects_Twirl1.jpg
IG8_Effects_Twirl2.jpg
IG8_Effects_Twirl3.jpg