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Using LandXML





Starting with TPC Desktop 2015, TPC imports and exports LandXML files. These are XML data files defined by

Why LandXML?

LandXML is a data exchange language created for Civil3D, allowing other programs to share data with Civil3D.

LandXML files function similarly to the way DXF files exchange data with DWG files.  The use html code (XML) to present Civil3Ds data for Points, Parcels, Alignments and Surfaces.

LandXML Versions

TPC Desktop supports LandXML version 1.2, but future versions of TPC Desktop may support future versions of LandXML.

Importing LandXML

When TPC imports a LandXML file, it displays a data tree, allowing the user to select all or part of the data to import.  See Importing LandXML.

Exporting LandXML

When you export LandXML, you tell TPC what to export via the What list and TPC exports the appropriate LandXML data.  See Exporting LandXML.

Traverses as Alignments and Parcels

When TPC exports to a LandXML file, it has to determine which traverses to export as Parcels and which to export as Alignments. It does so with the help of Traverse Groups. Traverses in the Parcels and Lots group are exported as Parcels as long as their closure type is not set to Open or Closed Point To Point (must be Closed or undetermined). Traverses in the Alignments group are exported as alignments.


TPC supports many of the LandXML units. When importing a LandXML file, TPC converts the incoming units to the survey units of the current survey. When exporting a LandXML file, TPC uses the current survey units to determine the units of the exported LandXML file.

Related Topics

LandXML CgPoints
LandXML Parcels
LandXML Alignments
LandXML Surfaces
LandXML Units
Importing LandXML
Exporting LandXML






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