The Rotate Method is available in LEADTOOLS Document and Medical Imaging toolkits.
- request
- A System.Runtime.Serialization.DataContractAttribute containing the data that will be used in this IImageProcessingService.Rotate operation.
Visual Basic (Declaration) | |
---|---|
<FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, Action="", Name="", Namespace="", ProtectionLevel=ProtectionLevel.None, HasProtectionLevel=False)> <OperationContractAttribute("Rotate")> Function Rotate( _ ByVal request As RotateRequest _ ) As CommandResponse |
Visual Basic (Usage) | Copy Code |
---|---|
Dim instance As IImageProcessingService Dim request As RotateRequest Dim value As CommandResponse value = instance.Rotate(request) |
C# | |
---|---|
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, Action="", Name="", Namespace="", ProtectionLevel=ProtectionLevel.None, HasProtectionLevel=false)] [OperationContractAttribute("Rotate")] CommandResponse Rotate( RotateRequest request ) |
C++/CLI | |
---|---|
[FaultContractAttribute(DetailType=Leadtools.Services.Raster.FaultContracts.RasterFault, Action="", Name="", Namespace="", ProtectionLevel=ProtectionLevel.None, HasProtectionLevel=false)] [OperationContractAttribute("Rotate")] CommandResponse^ Rotate( RotateRequest^ request ) |
Parameters
- request
- A System.Runtime.Serialization.DataContractAttribute containing the data that will be used in this IImageProcessingService.Rotate operation.
Return Value
A System.Runtime.Serialization.DataContractAttribute containing the modified image resulting from the IImageProcessingService.Rotate operation.Visual Basic | Copy Code |
---|---|
Public Sub RotateExample() Dim client As ImageProcessingServiceClient = New ImageProcessingServiceClient() Dim sourceBinaryData As RawBinaryData = New RawBinaryData() sourceBinaryData.Data = File.ReadAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp")) Dim convertOptions As RasterConvertOptions = New RasterConvertOptions() convertOptions.Source = sourceBinaryData convertOptions.Destination = Nothing convertOptions.Format = RasterImageFormat.Bmp convertOptions.FirstPage = 1 convertOptions.LastPage = 1 convertOptions.BitsPerPixel = 24 convertOptions.QualityFactor = 2 Dim request As RotateRequest = New RotateRequest() request.ConvertOptions = convertOptions request.FillColor = "White" request.Flags = RotateCommandFlags.Resize request.Angle = 45 * 100 request.RegionData = Nothing Dim response As CommandResponse = client.Rotate(request) If Not response.Destination Is Nothing Then If TypeOf response.Destination Is RawBinaryData Then File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "Rotate.bmp"), (TryCast(response.Destination, RawBinaryData)).Data) End If End If client.Close() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | Copy Code |
---|---|
public void RotateExample() { ImageProcessingServiceClient client = new ImageProcessingServiceClient(); RawBinaryData sourceBinaryData = new RawBinaryData(); sourceBinaryData.Data = File.ReadAllBytes(Path.Combine(LEAD_VARS.ImagesDir,"image1.cmp")); RasterConvertOptions convertOptions = new RasterConvertOptions(); convertOptions.Source = sourceBinaryData; convertOptions.Destination = null; convertOptions.Format = RasterImageFormat.Bmp; convertOptions.FirstPage = 1; convertOptions.LastPage = 1; convertOptions.BitsPerPixel = 24; convertOptions.QualityFactor = 2; RotateRequest request = new RotateRequest(); request.ConvertOptions = convertOptions; request.FillColor = "White"; request.Flags = RotateCommandFlags.Resize; request.Angle = 45 * 100; request.RegionData = null; CommandResponse response = client.Rotate(request); if (response.Destination != null) { if (response.Destination is RawBinaryData) File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir,"Rotate.bmp"), (response.Destination as RawBinaryData).Data); } client.Close(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
This operation has the following features:
- It uses the center of the image as the center of rotation.
- It can rotate the image clockwise or counterclockwise up to 360 degrees in 100th of a degree increments.
- It can resize the image to accommodate the rotated height and width, or it can retain the original height and width, cropping the image as necessary.
- It uses Leadtools.Services.ImageProcessing.DataContracts.RotateRequest.FillColor as the background color to fill any new area created by the rotation.
RotateCommandFlags.Resample and RotateCommandFlags.Bicubic can be combined with RotateCommandFlags.Resize, but they can not be combined with each other.
If RotateCommandFlags.Resize is set, then the image is resized. Otherwise, the image is cropped.
Interpolation can be done while rotating certain images. This produces superior output, eliminating the jaggedness occurring when rotating images at angles that are not multiples of 90. (ie when RotateRequest.Angle is not a multiple of 9000).
Target Platforms: Microsoft .NET Framework 3.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7