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This document is archived and information here might be outdated. Recommended version. |
Line Class (ArcObjects .NET 10.8 SDK)
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This document is archived and information here might be outdated. Recommended version. |
A 2D straight line between a pair of 2D endpoints; can optionally have height, measure and ID attributes at each endpoint.
Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.
| Interfaces | Description |
|---|---|
| IClone (esriSystem) | Provides access to members that control cloning of objects. |
| IConstructLine | Provides access to members that construct a line segment using other geometries and measures. |
| ICurve | Provides access to properties and methods of all 1 dimensional curves (polylines, segments, boundaries of polygons, etc.). |
| ICurve2 | Provides access to members that extend the functionality of one dimensional curves. |
| ICurve3 | Provides access to members that extend the functionality of one dimensional curves. |
| ICurve3D | Provides access to members that define operations common to curves with Zs. |
| IGeometry | Provides access to members that describe properties and behavior of all geometric objects. |
| ILine | Provides access to members that identify a straight line segment and defines its properties. |
| ILine2 | Provides access to the coordinates of a line segment in the form of Well Known Structures (WKS). |
| ILine3 | Provides access to members that identify a straight line segment and defines its properties. |
| IProximityOperator | Provides access to members that find the 2D distance between two geometries. |
| IProximityOperator3D | Provides access to members that find the 3D distance between two geometries with Zs. |
| ISegment | Provides access to members that identify a segment. A segment is a way of getting between two endpoints. |
| ISegmentID | Provides access to members that allow simple manipulations of IDs at the segment level. |
| ISegmentM | Provides access to members that allow simple manipulations of Ms at the segment level. |
| ISegmentZ | Provides access to members that allow simple manipulations of Zs at the segment level. |
| ISupportErrorInfo (esriSystem) | |
| ITransform2D | Provides access to methods for transforming geometries using either specific parameters or arbitrary transformation objects (affine transformations, geographic transformations, etc.). |
public static IGeometry GetLineGeometry()
{
ILine line = new LineClass()
line.FromPoint = GetPoint();
line.ToPoint = GetPoint();
return line as IGeometry;
}
private static IPoint GetPoint()
{
const double Min = -10;
const double Max = 10;
Random random = new Random();
double x = Min + (Max - Min) * random.NextDouble();
double y = Min + (Max - Min) * random.NextDouble();
double z = Min + (Max - Min) * random.NextDouble();
return ConstructPoint3D(x, y, z);
}
private static IPoint ConstructPoint3D(double x, double y, double z)
{
IPoint point = ConstructPoint2D(x, y);
point.Z = z;
return point;
}
private static IPoint ConstructPoint2D(double x, double y)
{
IPoint point = new PointClass();
point.PutCoords(x, y);
return point;
}