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XDL

XDMBandMask Class
입력 영상의 일부 지역을 벡터 객체를 이용하여 해당하는 지역을 추출하거나 삭제하는 기능이다.
Inheritance Hierarchy
SystemObject
  Pixoneer.NXDL.NRSXDMBand
    Pixoneer.NXDL.NRSXDMBandMask

Namespace: Pixoneer.NXDL.NRS
Assembly: NXDLrs (in NXDLrs.dll) Version: 2.0.3.38
Syntax
C#
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public class XDMBandMask : XDMBand

The XDMBandMask type exposes the following members.

Constructors
 NameDescription
Public methodXDMBandMask XDMBandMask클래스의 기본 생성자로서, 멤버변수에 대하여 초기화를 수행한다.
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Methods
 NameDescription
Public methodGetInputParam 영상 마스킹 처리에 대한 입력 파라미터를 얻는다.
Public methodSetInputParam 영상 마스킹 처리를 위한 입력 파라미터를 설정한다.
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Remarks

The Mask Area is used to set the masking area. Polygons can be created by NXImageView or by NXDLvc Objects

Example
입력 영상의 화소 단위 좌표 (100,100)~(300,300) 영역을 지우는 예제이다. 화소단위 좌표를 world 좌표로 변화하는 코드가 있으며, 영역을 지우기 위해서 MaskPolygonMode는 OutsideAnd로 설정한다.
C#
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using Pixoneer.NXDL;
using Pixoneer.NXDL.NRS;
using Pixoneer.NXDL.NIO;
using Pixoneer.NXDL.NVC;

// IO initialize to load image file
XRasterIO RasterIO = new XRasterIO();
String strError = "";
if (RasterIO.Initialize(out strError) == false)
{
    return;
}

// Image load
String strFilePathLoad = "D:\\Sample\\IKONOS.xdm";
XRSLoadFile xrsFileInput = RasterIO.LoadFile(strFilePathLoad, out strError, false, eIOCreateXLDMode.All_NoMsg);

// Create mask polygon
XvcPolygon polygon = new XvcPolygon();

// 영상 마스킹에 사용하는 벡터 객체는 world 좌표로 이루어져야 함.
double x, y;
XDMBand band = xrsFileInput.GetBandAt(0);
x = 100; y = 100;
band.PixelToSpace(ref x, ref y);
polygon.Add(new XVertex3d(x, y, 0));
x = 300; y = 100;
band.PixelToSpace(ref x, ref y);
polygon.Add(new XVertex3d(x, y, 0));
x = 300; y = 300;
band.PixelToSpace(ref x, ref y);
polygon.Add(new XVertex3d(x, y, 0));
x = 100; y = 300;
band.PixelToSpace(ref x, ref y);
polygon.Add(new XVertex3d(x, y, 0));

// Set input param
XBandParamMask InputParam = new XBandParamMask();
InputParam.SrcBand = xrsFileInput.GetBandAt(0);

InputParam.BorderSmoothWidth = 0;
InputParam.BlankValue = 0;
InputParam.MaskPolygonMode = eMaskPolygonMode.OutsideAnd;
InputParam.ListMaskPolygon.Add(polygon);

// Create New process band and set input param
XDMBandMask bandProcess = new XDMBandMask();
if (!bandProcess.SetInputParam(ref InputParam))
{
    return;
}

// create XRSSaveFile to save realtime band(XDMBandXXXX)
// load another file to protect thread lock(it is stable and faster).
XRSLoadFile fileLoad = RasterIO.LoadFile(strFilePathLoad, out strError, false, eIOCreateXLDMode.All_NoMsg);
XRSSaveFile fileSave = new XRSSaveFile();
for (int i = 0; i < fileLoad.NumBand; i++)
{
    XDMBand bandRaw = fileLoad.GetBandAt(i);
    XBandParamMask param = new XBandParamMask(ref InputParam);
    param.SrcBand = bandRaw;

    XDMBandMask bandTmp = new XDMBandMask();
    bandTmp.BandName = bandRaw.BandName;
    bandTmp.SetInputParam(ref param);

    XDMBand bandCast = (XDMBand)bandTmp;

    fileSave.AddBand(ref bandCast);
}

// Save output file
XThread thd = null;
String strFilePathSave = "D:\\Sample\\Output_Mask.xdm";
if (!RasterIO.Export(ref fileSave, strFilePathSave, "XDM", out strError, thd))
{
    return;
}
See Also