This method provides a radial wave effect on the current raster page.
Syntax
'Declaration
Public Shared Sub RadialWave( _
ByVal As ImGearRasterPage, _
ByVal As ImGearPoint, _
ByVal As Single, _
ByVal As Single, _
ByVal As Single, _
ByVal As Single, _
ByVal As Boolean, _
ByVal As ImGearPixel _
)
'Usage
Dim page As ImGearRasterPage
Dim center As ImGearPoint
Dim amplitude As Single
Dim frequency As Single
Dim phase As Single
Dim attenuation As Single
Dim interpolate As Boolean
Dim color As ImGearPixel
ImGearEffects.RadialWave(page, center, amplitude, frequency, phase, attenuation, interpolate, color)
Parameters
- page
- Page specified.
- center
- Center of the wave effect.
- amplitude
- Wave amplitude. Measurement units - pixel / 100.
- frequency
- Wave frequency. The frequency is defined as 1 / T, where T is a wave period in pixels.
- phase
- Wave phase, in radians.
- attenuation
- Wave attenuation. The attenuation factor of the wave is calculated as
exp(-attenuation * r), where r is a distance from the wave center to the current wave point.
- interpolate
- If this parameter is true then an interpolation is used during processing.
- color
- ImageGear.Core.ImGearPixel class color.
Example
// Distorts an image with a radial wave.
// Center point of the wave, set to center of image.
ImGearPoint igPoint = new ImGearPoint();
igPoint.X = igRasterPage.DIB.Width / 2;
igPoint.Y = igRasterPage.DIB.Height / 2;
// Warp the image with a radial wave with an amplitude of 0.25, frequency of 20 pixels,
// 0 phase, and slight attenuation. Interpolation is enabled, and no fill color is specified.
ImGearEffects.RadialWave(
igRasterPage, igPoint, (float)(0.25), (float)(1.0 / 20.0),
(float)(0.0), (float)(0.01), true, null);
' Distorts an image with a radial wave.
' Center point of the wave, set to center of image.
Dim igPoint As New ImGearPoint()
igPoint.X = igRasterPage.DIB.Width / 2
igPoint.Y = igRasterPage.DIB.Height / 2
' Warp the image with a radial wave with an amplitude of 0.25, frequency of 20 pixels,
' 0 phase, and slight attenuation. Interpolation is enabled, and no fill color is specified.
ImGearEffects.RadialWave(igRasterPage, igPoint, CSng((0.25)), CSng((1 / 20)), CSng((0)), CSng((0.01)), _
True, Nothing)
See Also