Initializes a new FreeHandWaveCommand class object with explicit parameters.
Syntax
Parameters
- amplitudes
- Array of integers that represent wave values. The real value of the array elements is divided by 1000. These values are generally obtained from the Leadtools.ImageProcessing.Effects.EffectsUtilities.GetCurvePoints(System.Int32[],Leadtools.LeadPoint[],Leadtools.ImageProcessing.Effects.CurvePointsType) utility method.
- scale
- Factor used to increase or decrease the various amplitude values in the amplitudes array. Each value in the amplitudes array is multiplied by this factor. The real factor value is the Scale value divided by 100. This property only accepts positive values.
- waveLength
- Value that represents the wave length, if FreeHandWaveCommandFlags.Period flag is set. Possible values range from 1 - 100 and give the wavelength as a percentage of the image dimensions. If FreeHandWaveCommandFlags.Frequency flag is set, this value is the number of repeated waves.
- angle
- Wave rotation angle in hundredths of a degree (+/-). The valid range is from -36000 to 36000. The value in degrees is angle divided by 100.
- fillColor
- RasterColor object that specifies the fill color for any exposed areas.
- flags
- FreeHandWaveCommandFlags enumeration that indicate how to handle exposed areas, and the type of information contained in waveLength parameter.
Example
Run the Leadtools.ImageProcessing.SpecialEffects.FreeHandWaveCommand on an image and apply triangular wave on the loaded image.
Visual Basic | Copy Code |
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Public Sub FreeHandWaveConstructorExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))
' Prepare the command
Dim userPoint() As LeadPoint
ReDim userPoint(3)
' Fill UserPoint array with points that define a triangular wave
userPoint(0).X = 0
userPoint(0).Y = 0
userPoint(1).X = 3
userPoint(1).Y = 10
userPoint(2).X = 9
userPoint(2).Y = -10
userPoint(3).X = 12
userPoint(3).Y = 0
Dim amplitudes() As Integer
ReDim amplitudes(12)
'Draw a triangular wave according to UserPoint points and store the Amplitudes values in the Amplitudes array
EffectsUtilities.GetCurvePoints(amplitudes, userPoint, CurvePointsType.Linear)
Dim command As FreeHandWaveCommand
command = New FreeHandWaveCommand(amplitudes, 100, 10, 0, New RasterColor(0, 0, 0), FreeHandWaveCommandFlags.Repeat Or FreeHandWaveCommandFlags.Frequency)
command.Run(leadImage)
codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class |
C# | Copy Code |
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public void FreeHandWaveConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));
// Prepare the command
LeadPoint[] userPoint = new LeadPoint[4];
// Fill UserPoint array with points that define a triangular wave
userPoint[0].X = 0;
userPoint[0].Y = 0;
userPoint[1].X = 3;
userPoint[1].Y = 10;
userPoint[2].X = 9;
userPoint[2].Y = -10;
userPoint[3].X = 12;
userPoint[3].Y = 0;
int[] amplitudes = new int[13];
//Draw a triangular wave according to UserPoint points and store the Amplitudes values in the Amplitudes array.
EffectsUtilities.GetCurvePoints(amplitudes, userPoint, CurvePointsType.Linear);
FreeHandWaveCommand command = new FreeHandWaveCommand(amplitudes, 100, 10, 0, new RasterColor(0, 0, 0), FreeHandWaveCommandFlags.Repeat | FreeHandWaveCommandFlags.Frequency);
command.Run(image);
codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
} |
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
See Also