Provides access to 3D Ray properties and methods. A ray has one endpoint (its origin) and continues infinitely in one direction.
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
Description
This interface is new at ArcGIS 9.3. It supersedes IRay.
Members
| Description | ||
|---|---|---|
 |
Dimension | The topological dimension of this geometry. |
|
Envelope | Creates a copy of this geometry's envelope and returns it. |
|
GeometryType | The type of this geometry. |
 |
GeoNormalize | Shifts longitudes, if need be, into a continuous range of 360 degrees. |
|
GeoNormalizeFromLongitude | Normalizes longitudes into a continuous range containing the longitude. This method is obsolete. |
|
GetEnumIntersect | Not implemented at this release. |
|
GetPointAtDistance | Constructs a point at a distance along the ray. |
|
Intersect | Returns a point collection containing all points of intersection, in order along the ray. |
|
Intersects | Indicates if the ray intersects the target geometry. |
|
IsEmpty | Indicates whether this geometry contains any points. |
 |
Origin | The origin point of the ray. |
|
Project | Projects this geometry into a new spatial reference. |
|
QueryEnvelope | Copies this geometry's envelope properties into the specified envelope. |
|
QueryFirstIntersection | Returns the first point of intersection between the ray and the target geometry. The point is set empty if there is no intersection. |
|
QueryOrigin | Sets a point equal to the ray's origin. |
|
QueryPlaneIntersection | Returns the point of intersection between the ray and the target plane. The point is set empty if there is no intersection. |
|
QueryPointAtDistance | Queries a point at a distance along the ray. |
|
QueryVector | Sets a vector equal to a unit vector with the same direction as the ray. |
|
SetEmpty | Removes all points from this geometry. |
|
SnapToSpatialReference | Moves points of this geometry so that they can be represented in the precision of the geometry's associated spatial reference system. |
 |
SpatialReference | The spatial reference associated with this geometry. |
|
Vector | The direction vector of the ray. |
Inherited Interfaces
| Interfaces | Description |
|---|---|
| IRay | Provides access to 3D Ray properties and methods. A ray has one endpoint (its origin) and continues infinitely in one direction. |
| IGeometry | Provides access to members that describe properties and behavior of all geometric objects. |
CoClasses that implement IRay2
| CoClasses and Classes | Description |
|---|---|
| Ray | A 3D ray that begins at a point and extends infinitely along a line in one direction only. |
[C#]
public IRay2 CreateRay(IPoint point, IVector3D vector)
{
IRay2 ray = new RayClass();
//If the input point.Z is NAN (Not A Number = value not set) set the z to 0
if (point.Z.Equals(Double.NaN))
{
point.Z = 0;
}
ray.Origin = point;
ray.Vector = vector;
return ray;
}