CV-2x3-148

Export geographic data if available, including latitude, longitude, elevation, address and true north [modified 2011-07-13]

Based on          IFC2x3

Initiator            ISG Meeting-Prague

Effects              Extended Coordination View

Date                    2007 02 26

Description:

The following geographic information should be exported as part of the extended coordination view, if it is available to the exporting system (e.g. as part of user input):

    1. latitude, longitude and elevation within the geodetic system WGS84

    2. address given as country, city, zip-code, address lines - in some countries, a region may be provided additionally

    true north as 2D direction, indicating the derivation of the positive y axis of the project coordinate system to the north direction

The information is exported into:

    1. IfcSite.RefLatitude, IfcSite.RefLongitude - as [degrees, minutes, second, micro seconds], IfcSite.RefElevation [as length measure]

    IfcBuilding.BuildingAddress :: IfcPostalAddress [see NOTE 1: added 2011-07-13]

    IfcGeometricRepresentationContext.TrueNorth

NOTE 1: added 2011-07-13

The following agreement is made regarding the provision of address:

    * the address, if available, shall always be exported as IfcBuilding.BuildingAddress

    * within the Coordination View V2.0, the address shall not be exported as IfcSite.SiteAddress

Example

to 1.

#109=IFCSITE('30kooSTG92lR6dcl7curCu', #33, 'Site_01', $, $, #108, $, 'Example Site', .ELEMENT., (48,7,58,800000), (11,34,34,540000), 500.34, $, $);


to 2.

#35=IFCPOSTALADDRESS($,$,$,$,('Any Street 12'),$,'Munich','Bavaria','80000','Germany');

#36=IFCBUILDING('1VP6n5Llf2YvEbkIyrqQcE',#33, 'Building_01', $, $, #25, $, 'Example Building', .ELEMENT., 500.34, $, #35);


to 3.

#20=IFCDIRECTION((0.7071.,0.7071));

#27=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,1.E-006, #26, #20);

#28=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Plan',3,1.E-006, #26, #20);


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