public static class RasterRegionConverter
This class lets you easily convert between a LEADTOOLS Leadtools.RasterRegion object and a WPF System.Windows.Media.Geometry object.
The LEADTOOLS Leadtools.RasterRegion class provides a platform independent representation of an area of interest in a Leadtools.RasterImage that can be used in any platform supported by LEADTOOLS such as GDI, GDI+, and WPF. Use this class To convert a LEADTOOLS Leadtools.RasterRegion object to/from a WPF System.Windows.Media.Geometry object.
For more information refer to RasterImage and WPF.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.Windows.Media;
public void RasterRegionConverterExample()
{
// Load an image
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string dstFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_Ellipse.jpg");
string dstFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_EllipseTranslated.jpg");
RasterCodecs codecs = new RasterCodecs();
RasterImage image = codecs.Load(srcFileName);
// We will add an ellipse region to the image
// Using WPF, create an elliptical geometry
// Create the ellipse geometry to add to the Path
EllipseGeometry ellipseGeometry = new EllipseGeometry();
ellipseGeometry.Center = new Point(250, 250);
ellipseGeometry.RadiusX = 200;
ellipseGeometry.RadiusY = 150;
Geometry geometry = ellipseGeometry;
// Create a RasterRegion from this region
using (RasterRegion region = RasterRegionConverter.ConvertFromGeometry(geometry))
{
// Add this region to the image
image.SetRegion(null, region, RasterRegionCombineMode.Set);
}
// Fill the image with a color
FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red));
cmd.Run(image);
// Save it
codecs.Save(image, dstFileName1, RasterImageFormat.Jpeg, 24);
// Now get the WPF geometry from the image
using (RasterRegion region = image.GetRegion(null))
{
geometry = RasterRegionConverter.ConvertToGeometry(region, null);
}
// Move the geometry 100 pixels to the right and bottom
geometry.Transform = new TranslateTransform(100, 100);
// Re-set it into the image, fill again and save
// Create a RasterRegion from this region
using (RasterRegion region = RasterRegionConverter.ConvertFromGeometry(geometry))
{
// Add this region to the image
image.SetRegion(null, region, RasterRegionCombineMode.Set);
}
// Fill the image with a color
cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow));
cmd.Run(image);
// Save it
codecs.Save(image, dstFileName2, RasterImageFormat.Jpeg, 24);
image.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}