Import Land XML Breaklines with Symbology

RE: Import Land XML Breaklines with Symbology

Ray Thwaits — Fri, 09 Dec 2022 18:40:18 GMT

When you export to the LandXML file, select either the Export Both or Export Features Only option. ORD will export the features with feature type and feature definition attached. On import, ORD will not treat those features as a TM but they will be displayed using the assigned feature definitions (assuming, of course, that those feature definitions are available in the target design file).

RE: Import Land XML Breaklines with Symbology

Joe Muni — Mon, 05 Dec 2022 17:43:56 GMT

Marc,

Mary is correct with regards to the Terrain Model not caring what type of breakline it is. In fact, Terrain Models aren't like DTMs used to be. They are now just complex MicroStation Elements that only use the breaklines point type in order to determine how it forms triangles. There is no "breakline intelligence" in a Terrain Model.
I'm afraid if you want the OpenRoads feature intelligence, you may need to do it manually. As a possible workflow, you might consider just making a DGN copy of the original 3D linework (that was used to create the TM) and assign FDs to those lines directly, instead of Importing to a TM and then out to a DGN.

RE: Import Land XML Breaklines with Symbology

MaryB — Thu, 01 Dec 2022 20:26:58 GMT

I'm not certain any of those formats (XML/DTM/TIN) would recognize levels, features or other graphic information about the original elements. As far as I know (which may not be much) surface data "knows" that something is a breakline, but doesn't really "care" what type of breakline it is. You and I care the it is an edge of pavement or a sidewalk, but that information isn't relevant to the mathematical formulation of a surface.