Vector Object

Description

Vectors can be displayed in 2D and 3D visualizations, easily determine the magnitude and direction to a specified target, and calculate intersections with Proximity Zones or define custom coordinate systems. See the Vectors and Coordinate Systems Guide for more information.

Inheritance Hierarchy: Object->Vector

Available In Editions:

Engineer

Mission

Timing Precision Mode

This page describes functionality in millisecond timing precision mode.

Click here to see the documentation for this object in nanosecond timing precision mode.

Name	Description	Attributes
Active	Specifies whether or not to evaluate methods of the vector and draw it in the MissionView.	Type: Variable Access: Read/Write
Alpha	Right ascension of the Vector in spherical coordinates. Used with Vector.Delta and Vector.Magnitude.	Type: Variable Access: Read/Write Units: deg
Color	The color to draw the vector. The color can be overridden for an individual view using the ViewWindow.SetObjectColor() method.	Type: Variable Access: Read/Write
DeclaredName	The name of the object as declared.	Type: String Access: Read-Only
Delta	Declination of the Vector in spherical coordinates measured in the x-y plane. Used with Vector.Alpha and Vector.Magnitude.	Type: Variable Access: Read/Write Units: deg
DrawMethod	Method in which to draw the vector	Type: Variable Access: Read/Write
Element	The x, y, z components of the vector.	Type: Array Access: Read/Write
Epoch	For Vector objects built on vectors which are relative to the position of bodies that move in space over time, the Epoch property indicates the time at which the Vector is defined or re-evaluated. To model a Vector that rotates in time, the Vector object should be updated any time the spacecraft state is updated. Therefore, the user should add a line Inside the control loop of the script to synchronize the coordinate system (in time) with the spacecraft, such asVector1.Epoch = Spacecraft1.Epoch; The Epoch property can also be set to a time in GSFC MJD Format	Type: Variable Access: Read/Write Units: day
ExistingXAxisCoordinateSystem	Specifies the coordinate system to use when the VectorType is 'Existing X-Axis'.	Type: Variable Access: Read/Write
LabelLocation	Determines where the vector label is drawn when the DrawMethod is arrow and the vector is visualized in a Mission View.	Type: Variable Access: Read/Write
Magnitude	Vector magnitude used with spherical coordinates. Used with Vector.Alpha and Vector.Delta.	Type: Variable Access: Read/Write
MagnitudeScaleFactor	Scale factor applied to the magnitude of the vector for visualization.	Type: Variable Access: Read/Write
Name	The name displayed for this object in output windows such as views, plots, and reports.	Type: String Access: Read/Write
ObjectId	The unique identifier for the object.	Type: Variable Access: Read-Only
ObjectType	The type of the object.	Type: String Access: Read-Only
ReferenceAxis	Specifies the body axis to use for VectorType = 4(Body Axis).	Type: Variable Access: Read/Write
VectorType	The type of vector.	Type: Variable Access: Read/Write
VisualOffset	Positional offset of the origin of the vector for Visualization. The offset origin is measured from the MJ2000 Earth Equator reference frame.	Type: Array Access: Read/Write Units: km

Name	Description
BuildVector	Uses the specified input arguments to set the origin and pointing information for the Vector object. Returns a Variable that informs the user whether the Vector was built successfully.
ClearSavedStates	Clears previous saved states for this object.
ConvertFromCoordinateSystem	Converts the Vector object from the custom CoordinateSystem by applying the direction cosine matrix of the CoordinateSystem object as a rotation to the calling Vector object.
ConvertToCoordinateSystem	Converts the Vector object into the custom CoordinateSystem by applying the direction cosine matrix of the CoordinateSystem object as a rotation to the calling Vector object.
GetFromFile	Load the object state from the specified FreeFlyer object file.
GetFromString	Load the object state from the specified string.
IntersectionTimes	This method provides a sequential listing of events related to the intersection of two objects, where one object moves to at least partially intersect another object. The objects can be a ThreeDModel and a Vector or a ProximityZone and a Vector. The start times, end times, and duration of the intersection are returned. FreeFlyer uses a definitive analytical solution to evaluate this method.
Intersects	Determines if the Vector object intersects any of the objects supplied as arguments.
PutToFile	Convert the object state to FreeFlyer object xml and write to a file.
PutToString	Convert the object state to FreeFlyer object xml and return as a string.
ReferenceEquals	Returns 1 if the argument refers to the calling object and 0 otherwise.
ResetMethodStates	Resets any method states associated with the calling object.
Restore	Restore an object's state from a previously saved state.
Save	Save the object's state so that it can be restored later.
ToColumnMatrix	Returns a column matrix representation of the value.
ToRowMatrix	Returns a row matrix representation of the value.
VertexAngle	Returns the angle in degrees between two 3-element vectors.