public int OverlayCount { get; }
@property (nonatomic, assign, readonly) NSUInteger overlayCount
public int getOverlayCount();
public:
property int OverlayCount {
int get();
}
OverlayCount # get (RasterImage)
The number of overlays that have been defined for this RasterImage.
This method is available in the (Document/Medical only) Toolkits.
This method will count how many overlays have been defined. The overlays are defined by calling SetOverlayImage or UpdateOverlayAttributes.
For more information, refer to Overlay Overview.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;
using Leadtools.ImageProcessing.Color;
using Leadtools.Dicom;
using Leadtools.Drawing;
using Leadtools.Controls;
using Leadtools.Svg;
public void GetOverlayImageExample()
{
RasterCodecs codecs = new RasterCodecs();
// load an image and set an overlay
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "image2.dcm"), 0, CodecsLoadByteOrder.BgrOrGray, 1, 1);
RasterImage imageOverlay1 = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ulay1.bmp"), 1, CodecsLoadByteOrder.Rgb, 1, 1);
RasterImage imageOverlay2 = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ulay1.bmp"), 1, CodecsLoadByteOrder.Rgb, 1, 1);
image.SetOverlayImage(0, imageOverlay1, RasterGetSetOverlayImageMode.Copy);
image.SetOverlayImage(1, imageOverlay2, RasterGetSetOverlayImageMode.Copy);
// update the attributes of one of the overlays
RasterOverlayAttributes attributes = image.GetOverlayAttributes(0,
RasterGetSetOverlayAttributesFlags.Color |
RasterGetSetOverlayAttributesFlags.Flags |
RasterGetSetOverlayAttributesFlags.Origin |
RasterGetSetOverlayAttributesFlags.BitIndex);
attributes.Color = new RasterColor(255, 255, 255);
attributes.AutoPaint = true;
attributes.AutoProcess = true;
attributes.Origin = new LeadPoint(5, 5);
attributes.BitPosition = image.BitsPerPixel - 1;
image.UpdateOverlayAttributes(
0,
attributes,
RasterGetSetOverlayAttributesFlags.Color |
RasterGetSetOverlayAttributesFlags.Flags |
RasterGetSetOverlayAttributesFlags.Origin |
RasterGetSetOverlayAttributesFlags.BitIndex);
int count = image.OverlayCount;
for (int i = 0; i < count; i++)
{
using (RasterImage overlayTest = image.GetOverlayImage(i, RasterGetSetOverlayImageMode.NoCopy))
{
string fileName = string.Format(Path.Combine(LEAD_VARS.ImagesDir, "overlay{0}_copy.bmp"), i);
codecs.Save(overlayTest, fileName, RasterImageFormat.Bmp, 1);
}
}
image.Dispose();
imageOverlay1.Dispose();
imageOverlay2.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images";
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document