land:LandXML

Element information

Namespace: http://www.landxml.org/schema/LandXML-1.1

Schema document: external/landxml/1.1/LandXML-1.1.xsd

Type: Anonymous

Properties: Global, Qualified

Content

Choice [1..*]
- land:Units All angular and direction values default to radians unless otherwise noted. Angular values, expressed in the specified Units.angleUnit are measured counter-clockwise from east=0. Horizontal directions, expressed in the specified Units.directionUnit are measured counter-clockwise from 0 degrees = north
- land:CoordinateSystem [0..1] Simplified coordinate systems definitions to reuse work done by EPSG (European Petroleum Survey Group) EPSG Code: EPSG has reserved the integer range 0 to 32767 for use as codes for coordinate systems. Example: Represents Australian Map Grid Zone 52 name="AGD66 - AMG Zone 52" , epsgCode="20252" Example: Represents Colorado CS27 South Zone name="NAD27-Colorado South" , epsgCode="26755"
- land:Project [0..1]
- land:Application [0..*] Optional element to identify the software that was used to create the file.
- land:Alignments [0..*] A collection of horizontal Alignments
- land:CgPoints [0..*] A collection of COGO points. (Cg = COGO = Cordinate Geometry)
- land:Amendment [0..*] Records the dealing information to allow audit trail between the survey document and the titling system
- land:GradeModel [0..*]
- land:Monuments [0..*] This list of monuments allows them to be grouped at a file level like parcels and points etc
- land:Parcels [0..*] A collection of Parcels
- land:PlanFeatures [0..*] A collection of planimetric features not otherwise defined by the schema, such as building footprints, guard rails, tree lines, lightpoles or signage.Typically a PlanFeatures element will contain a collection of similar items.
- land:PipeNetworks [0..*]
- land:Roadways [0..*]
- land:Surfaces [0..*] A collection of surface models.
- land:Survey [0..*] I've added state here as a safety net
- Any element [0..1] Namespace: ##other, Process Contents: skip

Attributes

Name	Occ	Type
date	[1..1]	xsd:date
time	[1..1]	xsd:time
version	[1..1]	xsd:string
language	[0..1]	xsd:string
readOnly	[0..1]	xsd:boolean
LandXMLId	[0..1]	xsd:int
crc	[0..1]	xsd:integer

Identity constraints

Type	Name	Selector	Field(s)
unique	uCoordGeomName	CoordGeom	@name
unique	uCgPointsName	CgPoints	@name
unique	uRoadwayName	Roadways/Roadway	@name
unique	uGradeModelName	GradeModel	@name
key	MonumentKey	.//Monuments/Monument	@name
keyref	SurveyMonument	.//SurveyMonument	@mntRef
key	StructKey	.//PipeNetwork/*/Struct	@name
keyref	PipeStart	.//PipeNetwork/*/Pipe	@refStart
keyref	PipeEnd	.//PipeNetwork/*/Pipe	@refEnd
key	PipeKey	.//PipeNetwork/*/Pipe	@name
keyref	StructInvert	.//PipeNetwork/*/Struct/Invert	@refPipe
key	ReducedObservationName	.///ObservationGroup//ReducedObservation	@name
key	ReducedArcObservationName	.///ObservationGroup//ReducedArcObservation	@name
key	Coord3DGeomName	.//Parcels/*/Coord3DGeom	@name
key	AnnotationName	.//Survey/*/Annotation	@name
key	SurveyorCertificateName	.//Survey/*/SurveyorCertificate	@name

Used in

Type geo:LandXMLType (Element geo:LandXML)

Sample instance

<land:LandXML date="2000-01-01" time="12:00:00" version="string">
   <land:Units>
      <land:Metric areaUnit="hectare" linearUnit="millimeter" volumeUnit="cubicMeter" temperatureUnit="celsius" pressureUnit="HPA"/>
   </land:Units>
</land:LandXML>