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XDL

XscObjEx Class
이 클래스는 XscObj를 상속받은 사용자 정의 객체를 XDL 외부에서 구현할 수 있도록 지원한다.
Inheritance Hierarchy
SystemObject
  Pixoneer.NXDL.NSCENEXscObj
    Pixoneer.NXDL.NSCENEXscObjEx

Namespace: Pixoneer.NXDL.NSCENE
Assembly: NXDLscene (in NXDLscene.dll) Version: 3.0.0.0
Syntax
C#
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public class XscObjEx : XscObj

The XscObjEx type exposes the following members.

Constructors
 NameDescription
Public methodXscObjEx XscObjEx 객체를 생성하고 데이터 멤버를 초기화한다. 기본 생성자.
클래스를 확인하기 위한 클래스 이름(XscObj의 GetTypeName 함수의 역할)을 지정하여 생성한다.
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Methods
 NameDescription
Public methodDraw Render 호출시 객체를 그린다. Persepctive 모드.
(Overrides XscObjDraw(NXDrawArgs, XscAttrSet))
Public methodOrthoDraw OrthoRender 호출히 객체를 그린다. Ortho 모드.
(Overrides XscObjOrthoDraw(NXDrawArgs, XscAttrSet))
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Example
아래의 예제는 XscObjEx를 상속받아 MyLineObj 클래스를 생성하고 사용하는 코드이다.
LineObj는 3점으로 이루어져 있으며 Planet2D에만 도시된다.
C#
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class LineObj : XscObjEx
{
    protected Pixoneer.NXDL.XGeoPoint[] gpPos = null;
    protected System.Drawing.Color lineColor = System.Drawing.Color.Red;

    // XscObj를 상속받고 클래스의 타입을 "MyLineObj"롤 설정하는 생성자
    public MyLineObj() : base("MyLineObj")
    {

    }

    public void SetPosition(Pixoneer.NXDL.XGeoPoint pos1, Pixoneer.NXDL.XGeoPoint pos2, Pixoneer.NXDL.XGeoPoint pos3)
    {
        if (gpPos == null)
        {
            gpPos =  new Pixoneer.NXDL.XGeoPoint[3];
        }

        gpPos[0] = pos1;
        gpPos[1] = pos2;
        gpPos[2] = pos3;

        double minLon = Pixoneer.NXDL.XDataRange.MAX_REAL64, minLat = Pixoneer.NXDL.XDataRange.MAX_REAL64;
        double maxLon = Pixoneer.NXDL.XDataRange.MIN_REAL64, maxLat = Pixoneer.NXDL.XDataRange.MIN_REAL64;
        for (int i = 0; i < 3; i++)
        {
            if (gpPos[i] == null) continue;

            minLon = (gpPos[i].lond < minLon) ? gpPos[i].lond : minLon;
            minLat = (gpPos[i].latd < minLat) ? gpPos[i].latd : minLat;
            maxLon = (gpPos[i].lond > maxLon) ? gpPos[i].lond : maxLon;
            maxLat = (gpPos[i].latd > maxLat) ? gpPos[i].latd : maxLat;
        }

        this.SetRange(Pixoneer.NXDL.XGeoPoint.FromDegree(minLon, minLat, 0.0), Pixoneer.NXDL.XGeoPoint.FromDegree(maxLon, maxLat, 0.0));

        Random rand = new Random();
        int r = rand.Next(256);
        int g = rand.Next(256);
        int b = rand.Next(256);

        this.lineColor = System.Drawing.Color.FromArgb(r, g, b);
    }

    // XscObj의 Draw 함수를 오버라이드하여 정의
    public override bool Draw(NXDrawArgs Args, XscAttrSet AttrSet)
    {
        if (gpPos == null) return false;
        if (Args == null) return false;
        if (Args.Graphics == null) return false;
        if (Args.Type != eDrawArgsType.Planet2D)
            return false;

        Pixoneer.NXDL.NXPlanet.NXPlanetDrawArgs planetDrawArgs = (Pixoneer.NXDL.NXPlanet.NXPlanetDrawArgs)Args;
        if (planetDrawArgs.ViewArea == null)
            return false;

        Args.Graphics.glDisable(XGraphics.GL_DEPTH_TEST);
        Args.Graphics.glColor(lineColor);
        Args.Graphics.glLineWidth(1.0);

        Pixoneer.NXDL.XVertex3d pt1 = planetDrawArgs.ViewArea.GeographicToWorld(gpPos[0]);
        Pixoneer.NXDL.XVertex3d pt2 = planetDrawArgs.ViewArea.GeographicToWorld(gpPos[1]);
        Pixoneer.NXDL.XVertex3d pt3 = planetDrawArgs.ViewArea.GeographicToWorld(gpPos[2]);

        Args.Graphics.glBegin(XGraphics.GL_LINE_STRIP);

        Args.Graphics.glVertex3d(pt1 - planetDrawArgs.WOS);
        Args.Graphics.glVertex3d(pt2 - planetDrawArgs.WOS);
        Args.Graphics.glVertex3d(pt3 - planetDrawArgs.WOS);

        Args.Graphics.glEnd();
        Args.Graphics.glLineWidth(1.0);
        Args.Graphics.glColor3d(1.0, 1.0, 1.0);

        return true;
    }
}

...

// MyLineObj 객체를 생성하여 PlanetLayerSceneDispaly에 추가
XScene scene2D = nxPlanetLayerSceneDisplay2D.GetScene();

MyLineObj newObj = new MyLineObj();
MyLineObj.ObjID = sc2D1.GetNextID();
MyLineObj.Name = newObj.ObjID.ToString();

XGeoPoint gpPos1 = Pixoneer.NXDL.XGeoPoint.FromDegree(125.0, 33.0, 0.0);
XGeoPoint gpPos2 = Pixoneer.NXDL.XGeoPoint.FromDegree(127.0, 38.0, 0.0);
XGeoPoint gpPos3 = Pixoneer.NXDL.XGeoPoint.FromDegree(126.0, 32.0, 0.0);

newObj.SetPosition(gpPos1, gpPos2, gpPos3);
scene2D.AddNode(newObj.ObjID, newObj);
scene2D.CalcRange();
See Also