public void SetData(
byte[] data
)
public void setData(byte[] data)
public:
void SetData(
array<byte>^ data
)
def SetData(self,data):
data
An array of Byte that represents the information that describes a RasterRegion.
You can use the GetData and SetData methods to save and load the content of a region to disk or memory.
If data is an array of 0 items or is null, then this method will make the RasterRegion object empty. This is the equivalent of calling MakeEmpty.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
public void RasterRegionDataExample()
{
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion1.bmp");
string regionFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_Region.bin");
string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion2.bmp");
RasterRegion region = null;
using (RasterCodecs codecs = new RasterCodecs())
{
// Load the source image
using (RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1))
{
// Add an elliptical region to it
image.AddEllipseToRegion(null, new LeadRect(0, 0, image.ImageWidth, image.ImageHeight), RasterRegionCombineMode.Set);
// Fill the image with a color and save it to disk to show the region
FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow));
cmd.Run(image);
codecs.Save(image, destFileName1, RasterImageFormat.Bmp, 24);
// Get the region
region = image.GetRegion(null);
}
// Save this region to disk
byte[] data = region.GetData();
File.WriteAllBytes(regionFileName, data);
// Dispose the region
region.Dispose();
// Now, reload the image and region from disk, set the region into the image directly
// from the data we save, re-fill and save again
using (RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1))
{
// Create a region from the data we saved on disk
data = File.ReadAllBytes(regionFileName);
using (region = new RasterRegion(data))
{
// Set this region into the image
image.SetRegion(null, region, RasterRegionCombineMode.Set);
}
// Fill the image with a color and save it to disk to show the region
FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow));
cmd.Run(image);
codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24);
}
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Help Collections
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