For documentation on the current version, please check Knowledge Base.
Attribute Formulas
Formulas available via User Interface
Functions by default available via the Orbit user interface, see Attribute Rules.
All these functions use only one argument.
Standard Object Functions
Formula  Datatype  Spatial type  Description 

CreationDate  String  All  Indicates the exact date the object was created. 
CreationDateTime  String  All  Indicates the exact date and time the spatial object was created. 
CreationUser  String  All  
ModifyDate  String  All  Indicates the exact date the object was modified. 
ModifyDateTime  String  All  Indicates the exact date and time the spatial object was modified. 
ModifyUser  String  All  
ObjectId  Integer  All  
UniqueId  Integer  All 
Spatial Object Functions
Formula  Datatype  Spatial type  Description 

Center  
CenterM  Integer  Point  Returns the user Defined Measurement from the point object (will be 0 if the coordinate system is 2D or 3D or if there is no measurement). 
Line, Area  Shows the user Defined measurement from the center of the rectangle that surrounds the line or area object.  
CenterX  Float  Point  Shows the X coordinate from the point object (value refers to the used CRS). 
Line, Area  Shows the X coordinate from the center of the rectangle that surrounds the line or area object.  
CenterY  Float  Point  Shows the Y coordinate from the point object (value refers to the used CRS). 
Line, Area  Shows the Y coordinate from the center of the rectangle that surrounds the line or area object.  
CenterZ  Float  Point  Shows the Z coordinate from the point object (will be 0 if coordinate system is 2D or 2D M or if there is no heigh reference.). 
Line, Area  Shows the Z coordinate from the center of the rectangle that surrounds the line or area object.  
CoordinateCount  Integer  All  Shows the number of points that an object contains. 
First  
FirstM  Float  Point  Shows the user Defined Measurement from the point object (will be 0 if the coordinate system is 2D or 3D or if there is no measurement). 
Line, Area  Shows the userdefined measurement from the first point/vertex of the line or area object. first indicates the first point that is placed when the object is drawn.  
FirstSegmentAngle  
FirstSegmentLength  
FirstTriangleHeight  
FirstX  Float  Point  
Line, Area  Shows the X coordinate from the first point/vertex of the line or area object. first indicates the first point that is placed when the object is drawn.  
FirstY  Float  Point  
Line, Area  Shows the Y coordinate from the first point/vertex of the line or area object. first indicates the first point that is placed when the object is drawn.  
FirstZ  Float  Point  
Line, Area  Shows the Z coordinate from the first point/vertex of the line or area object. first indicates the first point that is placed when the object is drawn.*  
IsClosed  String, Boolean  all  Returns true for a line object if the beginning point and the endpoint are the same. Area and point objects are always closed, thus true. 
IsWellFormed  String, Boolean  All  Returns true if the geometry of the spatial object is wellformed according to the rules of the OGC. 
Last  
LastM  Float  Point  
Line, Area  Shows the userdefined measurement from the last point/vertex of the line or area object. Last indicates the last point that is placed when the object is drawn.*  
LastX  Float  Point  
Line, Area  Shows the X coordinate from the last point/vertex of the line or area object. Last indicates the last point that is placed when the object is drawn.  
LastY  Float  Point  
Line, Area  Shows the Y coordinate from the last point/vertex of the line or area object. Last indicates the last point that is placed when the object is drawn.  
LastZ  Float  Point  
Line, Area  Shows the Z coordinate from the last point/vertex of the line or area object. Last indicates the last point that is placed when the object is drawn.**  
Max  
MaxM  Float  Point  
Line, Area  Shows the userdefined measurement from the right upper corner of the rectangle that surrounds the line or area object.  
MaxX  Float  Point  
Line, Area  Shows the X coordinate from the right upper corner of the rectangle that surrounds the line or area object.  
MaxY  Float  Point  
Line, Area  Shows the Y coordinate from the right upper corner of the rectangle that surrounds the line or area object.  
MaxZ  Float  Point  
Line, Area  Shows the Z coordinate from the right upper corner of the rectangle that surrounds the line or area object.*  
Min  
MinM  Float  Point  
Line, Area  Shows the userdefined measurement from the left bottom corner of the rectangle that surrounds the line or area object.  
MinX  Float  Point  
Line, Area  Shows the X coordinate from the left bottom corner of the rectangle that surrounds the line or area object.  
MinY  Float  Point  
Line, Area  Shows the Y coordinate from the left bottom corner of the rectangle that surrounds the line or area object.  
MinZ  Float  Point  
Line, Area  Shows the Z coordinate from the left bottom corner of the rectangle that surrounds the line or area object.  
ObjectArea  Float  Line, Area  Calculates the area in a square meter. Line objects will return 0.0 if they are not closed (cfr. IsClosed). 
ObjectLength  Float  Line, Area  Calculates the length in meter. 
PartCount  Integer  Enumerates the number of parts from which the object is built.  
PointCount  Integer  Enumerates the number of points from which the object is built.  
SizeX  Float  
SizeY  Float  
SizeZ  Float  
SpatialImage.SampleValue  Float 
Mobile Mapping Functions
Mobile Mapping functions are only available for the Orbit MM desktop portfolio
These functions are calculated and updated when editing the object via a mobile mapping view.
Mobile Mapping functions calculating a distance, length, or area are using the on the fly calculated projected coordinate system to achieve the exact metric result.
Formula  Datatype  Spatial type  Description 

Measure Angle  
Measure Area XY  Float  Area  2D area, or area of projected 3D area with Z = 0. 
Measure Area XYZ  Float  Area  Area projected on the best fit 3D plane through all measured vertices. This technique expects all vertices to be measured in approximately a single 3D plane. 
Measure Attachments  
Measure Center XPosition  Float  
Measure Center YPosition  Float  
Measure Center ZMax  
Measure Center ZMin  
Measure Center ZPosition  Float  
Measure Center ZRange  
Measure Clearance  Float  Line  Catenary curve: Minimum distance from cable to ground. 
Measure Distance 2D  Float  Line  2D length of a straight line between start and endpoint, or length of the projected 3D distance with Z = 0. 
Measure Distance 3D  Float  Line  3D length of a straight line between start and endpoint. 
Measure Distance Error XY  Float  Line  Triangulation error for Measure Distance 2D. 
Measure Distance Error XYZ  Float  Line  Triangulation error for Measure Distance 3D. 
Measure Distance Error Z  Float  Line  Triangulation Z error for Measure Distance 3D. 
Measure Distance Reference 3D  Float  REMOVED?  
Measure Distance X  Float  Line  Absolute difference in X between the start and endpoint of a straight line. 
Measure Distance Y  Float  Line  Absolute difference in Y between the start and endpoint of a straight line. 
Measure Distance Z  Float  Line  Absolute difference in Z between the start and endpoint of a straight line. 
Measure Distance over Curve  Float  Line  3D length over the catenary curve. 
Measure Feature Id  
Measure Field of View  
Measure LRef Distance XY  
Measure LRef Distance XYZ  
Measure LRef Distance Z  
Measure LRef Length  
Measure LRef Timestamp  
Measure Length XY  Float  Line, Area  Summed 2D length of each line segment as distance XY. 
Measure Length XYZ  Float  Line, Area  Summed 3D length of each line segment as distance XYZ. 
Measure Length Z  Float  
Measure Length2 XY  Float  
Measure Length2 XYZ  Float  
Measure Length2 Z  Float  
Measure Mapping Resource Name  
Measure PhotoId  String  
Measure Point1 Distance to Ground  Float  Point  Absolute difference in Z between Point1 and the Ground. 
Measure Point1 Error XY  Float  Point  Triangulation error XY for Measure Point1. 
Measure Point1 Error XYZ  Float  Point  Triangulation error XYZ for Measure Point1. 
Measure Point1 Error Z  Float  Point  Triangulation error Z for Measure Point1. 
Measure Point1 XPosition  Float  Point  The x coordinate of Point1. 
Measure Point1 YPosition  Float  Point  The y coordinate of Point1. 
Measure Point1 ZPosition  Float  Point  The z coordinate of Point1. 
Measure Point2 Distance to Ground  Float  Point  Absolute difference in Z between Point2 and the Ground. 
Measure Point2 Error XY  Float  Point  Triangulation error XY for Measure Point2. 
Measure Point2 Error XYZ  Float  Point  Triangulation error XYZ for Measure Point2. 
Measure Point2 Error Z  Float  Point  Triangulation error Z for Measure Point2. 
Measure Point2 XPosition  Float  Point  The x coordinate of Point2. 
Measure Point2 YPosition  Float  Point  The y coordinate of Point2. 
Measure Point2 ZPosition  Float  Point  The z coordinate of Point2. 
…  
Measure Point20 Distance to Ground  Float  Point  Absolute difference in Z between Point20 and the Ground. 
Measure Point20 Error XY  Float  Point  Triangulation error XY for Measure Point20. 
Measure Point20 Error XYZ  Float  Point  Triangulation error XYZ for Measure Point20. 
Measure Point20 Error Z  Float  Point  Triangulation error Z for Measure Point20. 
Measure Point20 XPosition  Float  Point  The x coordinate of Point20. 
Measure Point20 YPosition  Float  Point  The y coordinate of Point20. 
Measure Point20 ZPosition  Float  Point  The z coordinate of Point20. 
Measure Radius Circle  Float  
Measure Slant  Float  
Measure Slope  Float  Distance  Angle (decimal degrees) between 1) measured or derived distance and 2) the zaxis / vertical direction. 
Measure Span  Float  Line  Catenary curve: Closest distance between 2 connection points. 
Measure View Tilt  
Measure View Heading  
Measure Width Rail  Float 
Feature Detection Functions
Formula  Datatype  Spatial type  Description 

Formulas available via ORD TextFile Configuration
Functions available via ord file editing, see Orbit Resource Descriptor.
These functions may use one or multiple arguments. Attribute argument references can only be used within the same Attribute Set.
The syntax is straightforward but must be exact :
 Function : Function()
 Arguments in function comma separated : Function(Argument1,Argument2,…)
 Attribute reference by using [ ] : Function([Atribute1],[Atribute2],Argument3,...)
 Decimal character is dot : Function([Atribute1],[Atribute2],3.1457,Argument4,...)
Generic Standard Functions
Function  Arguments  Datatype  Description 

Abs  Double  
ACos  Double  
Add  Double  
And  Boolean  
ArgumentAt  
ArgumentCount  
ArgumentsAt  
ASin  Double  
ATan  Double  
ATan2  Double  
Between  Boolean  
Char  (A)  String  Add a character with a specific code. e.g. : Char(9) results in a 'TAB' character e.g. : Char(13,10) results in a DOS newline sequence 
Concat  String  Combines one or more strings, attributevalues or functions. e.g. Concat([KERKHOFCODE],”_”,[ZONECODE],”_”,[RIJCODE],”_”,[GRAF]) 

Cos  Double  
Decimals  String  
DegToRad  Double  
Divide  Double  
Double  Double  
Equal  Boolean  
Exp  Double  
FirstArgument  
FirstUpperCase  String  
Hypot2D  (A,B,C)  Double  http://en.wikipedia.org/wiki/Hypotenuse 
Hypot3D  (A,B,C)  Double  http://en.wikipedia.org/wiki/Hypotenuse 
If  (A,B,C)  Any  If(<logical test>,<value if true>,<value if false>) e.g. : If(LargerOrEqual([Height],10),“High”,“Low”) 
In  Boolean  
IndexOf  (A,B)  Integer  Displays the numeric position of a substring. e.g. : IndexOf(“The last emperor”,”emperor”) results in 9 
Int  Double  
IsNull  Boolean  
Larger  Boolean  
LargerOrEqual  
LastArgument  
LastIndexOf  (A,B)  Integer  Displays the last numeric position of a substring. e.g. : LastIndexOf(“C:\temp\my.map\file.txt”,”.”) results in 19 
Left  String  Takes a part of a string, starting from the left position. The second parameter determines the number of characters. e.g.Left([Attribute],7) 

Length  ([Attribute])  Calculates string length of the attribute.  
Log  Double  
Long  
LowerCase  String  
LPad  (A,B,C)  String  Left pad a value with a pad character to the requested size. e.g. : LPad(“123”,6,”0”) results in 000123 e.g. : LPad(“de”,3,”+”) results in +de 
LTrim  String  
Max  String  
Min  String  
Multiply  Double  e.g. multiply([Attribute],3.28083) (from meters to feet)  
NewLine  String  
Not  Boolean  
NowDate  String  
NowDateTime  String  
NowTime  String  
Or  Boolean  
PatternMatch  (A,B)  String  Determines whether a particular pattern occurs. e.g. : PatternMatch(“255.17.23”,”*.17.*”) results in 'true' 
Pi  Double  
Power  Double  
Printf  String  
RadToDeg  Double  
Random  Double  
Replace  (A,B,C)  String  Replaces a substring by another. e.g. : Replace(“the last emperor”,”last”,”first) results in “the first emperor” 
Right  String  
RPad  (value,size,pad)  String  Right pad a value with a pad character to the requested size. e.g. : RPad(“123”,6,”0”) results in 123000 e.g. : RPad(“de”,3,”+”) results in de+ 
RTrim  String  
Sin  Double  
Smaller  Boolean  
SmallerOrEqual  Boolean  
Split  (A,B)  String  Split a string in different parts. e.g. : Split(“127.B.3”,”.”) results in “127” “B” and “3” 
Sqrt  Double  
SubString  ()  String  Returns a substring from string A, starting at index position B with length C. 
SubString2  (A,B,C)  String  Returns a substring from string A, starting at index position B til, index position C. 
Subtract  Double  
Tan  Double  
Trim  String  
UpperCase  String 
Spatial Functions
Formula  Datatype  Spatial type  Description 

Angle  Float  All  
Center  Float  All  
Distance2D  Float  All  
Distance3D  Float  All  
DistanceZ  Float  All  
First  Float  All  
GetM  Float  All  
GetX  Float  All  
GetY  Float  All  
GetZ  Float  All  
Last  Float  All  
Max  Float  All  
Min  Float  All  
NewPoint2D  Float  All  
NewPoint2DM  Float  All  
NewPoint3D  Float  All  
NewPoint3DM  Float  All  
PerpendicularLine  Float  All  
PointInterpolation  
Point  Float  All  
ProjectPointOnLine  Float  All 
Mobile Mapping functions
Mobile Mapping functions are only available for the Orbit MM desktop portfolio
Function  Datatype  Arguments  Description 

PanFromAxisRotation  Float  A,B,C,D  Direction Vector: A,B,C and D rotation angle (decimal degrees) e.g. ([rotation_axis_1],[rotation_axis_2],[rotation_axis_3],[rotation_angle]) 
TiltFromAxisRotation  
RollFromAxisRotation  
PanFromDirectionAndUp()  Float  A,B,C,D,E,F  Direction Vector: by A,B,C and Up Vector: D,E,F e.g. ([Direction_Easting],[Direction_Northing],[Direction_Elevation],[Up_Easting],[Up_Northing],[Up_Elevation]) 
TiltFromDirectionAndUp()  
RollFromDirectionAndUp()  
PanFromOmegaPhiKappa  Float  A,B,C  Direction Vector: A,B,C e.g. ([Omega],[Phi],[Kappa]) 
TiltFromOmegaPhiKappa  
RollFromOmegaPhiKappa  
PanFromRotationYXZ  Float  A,B,C  Direction Vector: A,B,C e.g. ([rotation_y],[rotation_x],[rotation_z]) 
TiltFromRotationYXZ  
RollFromRotationYXZ 
Example use formulas
AttributeConstraint= ModelId=1
AttributeSetName=Attributes AttributeName=Oppervlakte Rule=expression Expression=ObjectArea() AttributeName=Perimeter Rule=expression Expression=Spatial.Length
AddFunctionAttribute= ModelId=1
AttributeSetName=Attributes AddAttribute= AttributeName=Oppervlakte_hm AttributeType=FLOAT AttributeExpression=Add(100,Divide([Oppervlakte],1000))