Mainline

return

	Parent Item
Line:	A list with 10 entries. The first one is always the Controller's mainline. The other 9 are the additional mainlines. The actual mainline/additional mainline selection (POINT, LINE, ROUTE) is done in the Controller's Session Setup, Planning.

Sub Item	Description	Value Type	Properties
Name	Name of the current mainline.	text
Type	"Point" if current mainline is a POINT, "Single Line" if current mainline is a LINE and "Route" if current mainline is a ROUTE.	text
Description	When Parent Item Line is set to [Mainline], then this Line Description will be "Current Point", "Current Line", or "Current Route", dependent on the type of the current mainline. Otherwise it will be the user-defined description of the additional mainline, as entered by the user in the Controller Session Setup, Planning, Additional Mainlines.	text
Line Index	A number between 1 and 10, indicating the selected Line of the Parent item property. So 1 means Parent Item is [Mainline], 2 means it is [2nd Mainline] and so on.	int
SOL Easting	Depends on the type of the selected mainline: POINT Value will be easting co-ordinate of the Point LINE Value will be the start-of-line easting co-ordinate of the Line ROUTE Value will be the start-of-line easting co-ordinate of the very first section of the Route.	int
SOL Northing	Depends on the type of the selected mainline: POINT Value will be northing co-ordinate of the Point LINE Value will be the start-of-line northing co-ordinate of the Line ROUTE Value will be the start-of-line northing co-ordinate of the very first section of the Route.	int
EOL Easting	Depends on the type of the selected mainline: POINT Value will be easting co-ordinate of the Point. So it is the same as the SOL Easting LINE Value will be the end-of-line easting co-ordinate of the Line ROUTE Value will be the end-of-line easting co-ordinate for the very last section of the Route.	int
EOL Northing	Depends on the type of the selected mainline: POINT Value will be northing co-ordinate of the Point. So it is the same as the SOL Northing LINE Value will be the end-of-line northing co-ordinate of the Line ROUTE Value will be the end-of-line northing co-ordinate for the very last section of the Route.	int
SOL Latitude	Depends on the type of the selected mainline: POINT Value will be latitude co-ordinate of the Point LINE Value will be the start-of-line latitude of the Line ROUTE Value will be the start-of-line latitude for the very first section of the Route	int	Datum Survey Datum (Default) WGS84
SOL Longitude	Depends on the type of the selected mainline: POINT Value will be longitude co-ordinate of the Point LINE Value will be the start-of-line longitude of the Line ROUTE Value will be the start-of-line longitude for the very first section of the Route.	int	Datum Survey Datum (Default) WGS84
EOL Latitude	Depends on the type of the selected mainline: POINT Value will be latitude co-ordinate of the Point. So it is the same as the SOL Latitude LINE Value will be the end-of-line latitude of the Line ROUTE Value will be the end-of-line latitude for the very last section of the Route.	int	Datum Survey Datum (Default) WGS84
EOL Longitude	Depends on the type of the selected mainline: POINT Value will be longitude co-ordinate of the Point. So it is the same as the SOL Longitude LINE Value will be the end-of-line longitude of the Line ROUTE Value will be the end-of-line longitude for the very last section of the Route.	int	Datum Survey Datum (Default) WGS84
Length	Depends on the type of the selected mainline: POINT Value will be empty LINE Value will be the length of the entire Line Value will be empty when the line is curved i.c.w the reference set to True ROUTE Value will be the length of the entire Route Value will be empty when at least one of the sections is curved i.c.w the reference set to True.	int	Reference Grid (Default) True
SOL Bearing	Depends on the type of the selected mainline: POINT Value will empty LINE Value will be the bearing between the SOL co-ordinate and the EOL co-ordinate of the Line. A possible radius value (i.e. curved line) is not taken into account. ROUTE Value will be the bearing between the SOL co-ordinate and the EOL co-ordinate of the Route. Possible curved sections are not taken into account.	int	Reference Grid (Default) True
Radius	Depends on the type of the selected mainline: POINT Value will be the Radius1 value (in survey units) that defines a possible circle around the point. LINE The values that defines the curve for the line. A straight line has a radius of zero, a +tive radius means the line bends to starboard, and -tive means it bends to port. ROUTE Value will be the radius value for the current section of the current Steered Node (as defined in the Controller). A straight section has a radius of zero, a +tive radius means the line bends to starboard, and -tive means it bends to port.	int
Attribute1 Attribute2	This will be the attribute1 value for a POINT or LINE or for the current section of a ROUTE. Note that using the Survey Manager you may define two additional fields next to the co-ordinate values for a POINT, LINE or ROUTE section: Attribute1 and Attribute2. It depends on your survey application whether a user needs this extra information, e.g. vertical seismic surveys, or particular dredging operations. When the selected mainline is a: POINT The value will always be visible LINE The value will always be visible, even if the current steered node is before SOL or after EOL ROUTE A value is always visible: it will be taken for the closest section (as determined for the current steered node) .		double
Current Section	The current (i.e. closest) section index for the selected mainline as calculated by the Controller for the Steered Node. - When the selected mainline is a POINT it will be 0 (zero and always 1 when the selected mainline is a LINE. - When the steered node position is before SOL for a ROUTE then the value will always be 1. - When the steered node position is after EOL for a ROUTE then it will be the index of the last section: the same as the number of sections.	int