Leadtools Namespace > RasterImage Class : AddRectangleToRegion Method |
public void AddRectangleToRegion( RasterRegionXForm xform, LeadRect rc, RasterRegionCombineMode combineMode )
'Declaration Public Sub AddRectangleToRegion( _ ByVal xform As RasterRegionXForm, _ ByVal rc As LeadRect, _ ByVal combineMode As RasterRegionCombineMode _ )
'Usage Dim instance As RasterImage Dim xform As RasterRegionXForm Dim rc As LeadRect Dim combineMode As RasterRegionCombineMode instance.AddRectangleToRegion(xform, rc, combineMode)
public void AddRectangleToRegion( RasterRegionXForm xform, LeadRect rc, RasterRegionCombineMode combineMode )
function Leadtools.RasterImage.AddRectangleToRegion( xform , rc , combineMode )
public: void AddRectangleToRegion( RasterRegionXForm^ xform, LeadRect rc, RasterRegionCombineMode combineMode )
To update an existing region, you specify how the new region is to be combined with the existing one using the combineMode parameter. For more information, refer to RasterRegionCombineMode.
For more information, refer to Creating a Region.
For more information, refer to Saving A Region.
For more information, refer to Working with the Existing Region.
Public Sub AddRectangleToRegionExample() Dim codecs As RasterCodecs = New RasterCodecs() Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp") Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRectangleToRegion.bmp") ' Load the image Dim image As RasterImage = codecs.Load(srcFileName) ' Add a rectangle region Dim xform As RasterRegionXForm = New RasterRegionXForm() xform.ViewPerspective = RasterViewPerspective.TopLeft xform.XOffset = 0 xform.YOffset = 0 xform.XScalarDenominator = 1 xform.XScalarNumerator = 1 xform.YScalarDenominator = 1 xform.YScalarNumerator = 1 Dim rc As LeadRect = New LeadRect(image.ImageWidth \ 4, image.ImageHeight \ 4, image.ImageWidth \ 3, image.ImageHeight \ 3) image.AddRectangleToRegion(xform, rc, RasterRegionCombineMode.Set) ' Draw something on the image Dim command As InvertCommand = New InvertCommand() command.Run(image) ' Save the image codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24) image.Dispose() codecs.Dispose() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class
public void AddRectangleToRegionExample() { RasterCodecs codecs = new RasterCodecs(); string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRectangleToRegion.bmp"); // Load the image RasterImage image = codecs.Load(srcFileName); // Add a rectangle region RasterRegionXForm xform = new RasterRegionXForm(); xform.ViewPerspective = RasterViewPerspective.TopLeft; xform.XOffset = 0; xform.YOffset = 0; xform.XScalarDenominator = 1; xform.XScalarNumerator = 1; xform.YScalarDenominator = 1; xform.YScalarNumerator = 1; LeadRect rc = new LeadRect(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3); image.AddRectangleToRegion(xform, rc, RasterRegionCombineMode.Set); // Draw something on the image InvertCommand command = new InvertCommand(); command.Run(image); // Save the image codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24); image.Dispose(); codecs.Dispose(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; }
RasterImageExamples.prototype.AddRectangleToRegionExample = function ( ) { Tools.SetLicense ( ); with ( Leadtools ) { with ( Leadtools.Codecs ) { var codecs = new RasterCodecs(); var srcFileName = "Assets\\Image1.cmp"; var destFileName = "Image1_AddRectangleToRegion.bmp"; var image ; // Load the image return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) { return codecs.loadAsync(LeadStreamFactory.create(loadFile)) }) .then(function (img) { image = img; // Add a rectangle region var xform = new RasterRegionXForm(); xform.viewPerspective = RasterViewPerspective.topLeft; xform.xoffset = 0; xform.yoffset = 0; xform.xscalarDenominator = 1; xform.xscalarNumerator = 1; xform.yscalarDenominator = 1; xform.yscalarNumerator = 1; var rc = LeadRectHelper.create(image.imageWidth / 4, image.imageHeight / 4, image.imageWidth / 3, image.imageHeight / 3); image.addRectangleToRegion(xform, rc, RasterRegionCombineMode.set); // Draw something on the image var command = new Leadtools.ImageProcessing.Color.InvertCommand(); command.run(image); // Save the image return Tools.AppLocalFolder().createFileAsync(destFileName) }) .then(function (saveFile) { var saveStream = LeadStreamFactory.create(saveFile); return codecs.saveAsync(image, saveStream, RasterImageFormat.bmp, 24) }) .then(function () { image.close(); codecs.close(); }); } } }
[TestMethod] public async Task AddRectangleToRegionExample() { RasterCodecs codecs = new RasterCodecs(); string srcFileName = @"Assets\Image1.cmp"; string destFileName = @"Image1_AddRectangleToRegion.bmp"; // Load the image StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName); RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile)); // Add a rectangle region RasterRegionXForm xform = new RasterRegionXForm(); xform.ViewPerspective = RasterViewPerspective.TopLeft; xform.XOffset = 0; xform.YOffset = 0; xform.XScalarDenominator = 1; xform.XScalarNumerator = 1; xform.YScalarDenominator = 1; xform.YScalarNumerator = 1; LeadRect rc = LeadRectHelper.Create(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3); image.AddRectangleToRegion(xform, rc, RasterRegionCombineMode.Set); // Draw something on the image InvertCommand command = new InvertCommand(); command.Run(image); // Save the image StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName); ILeadStream saveStream = LeadStreamFactory.Create(saveFile); await codecs.SaveAsync(image, saveStream, RasterImageFormat.Bmp, 24); image.Dispose(); codecs.Dispose(); }
public void AddRectangleToRegionExample(RasterImage image, Stream destStream) { // Add a rectangle region RasterRegionXForm xform = new RasterRegionXForm(); xform.ViewPerspective = RasterViewPerspective.TopLeft; xform.XOffset = 0; xform.YOffset = 0; xform.XScalarDenominator = 1; xform.XScalarNumerator = 1; xform.YScalarDenominator = 1; xform.YScalarNumerator = 1; LeadRect rc = new LeadRect(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3); image.AddRectangleToRegion(xform, rc, RasterRegionCombineMode.Set); // Draw something on the image InvertCommand command = new InvertCommand(); command.Run(image); // Save the image RasterCodecs codecs = new RasterCodecs(); codecs.Save(image, destStream, RasterImageFormat.Png, 0); image.Dispose(); }
Public Sub AddRectangleToRegionExample(ByVal image As RasterImage, ByVal destStream As Stream)
' Add a rectangle region
Dim xform As RasterRegionXForm = New RasterRegionXForm()
xform.ViewPerspective = RasterViewPerspective.TopLeft
xform.XOffset = 0
xform.YOffset = 0
xform.XScalarDenominator = 1
xform.XScalarNumerator = 1
xform.YScalarDenominator = 1
xform.YScalarNumerator = 1
Dim rc As LeadRect = New LeadRect(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3)
image.AddRectangleToRegion(xform, rc, RasterRegionCombineMode.Set)
' Draw something on the image
Dim command As InvertCommand = New InvertCommand()
command.Run(image)
' Save the image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, destStream, RasterImageFormat.Png, 0)
image.Dispose()
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2