This command imports project data from the industry standard
LandXML file format version 2.0 and earlier. Land development
software applications including Carlson Software can exchange
project data using LandXML. The project data in LandXML includes
survey measurements, coordinates, centerlines, profiles, cross
sections, surfaces, lots, plan view linework and pipe
networks.
To import a LandXML file, the program first prompts to select a
LandXML file to import. Then there is a dialog with import options
along with a view of the contents of the LandXML file. You can
toggle on which data from the file that you want to
import.
LandXML Units: Indicates the Units of Measure associated with the incoming LandXML file (see the Unit Differences item below).
Point Protection: When enabled, you are prompted for a course of action if an existing LandXML file you've selected contains COGO points that have the same number(s) as those that already exist in the drawing. When disabled, existing point data in the project is updated with the values from the LandXML file.
Destination File Method: This option allows you to indicate how the incoming data file(s) are named as they are imported.
Load Surfaces into Surface Manager:
When enabled, this option will automatically
add surface model (TIN) data into the
Surface Manager and graphically represents (draws) the surface
model/contours according to the current settings found in the
Triangulate & Contour command.
Skip Invisible Triangles: This
option skips triangles flagged as invisible when importing a
triangulation surface.
Use Old FLT Triangulation File Format to Import Surface Data: When enabled, the older ASCII-based Carlson *.FLT file format will be used in place of the newer and more efficient *.TIN file format.
Save All Existing Ground Profiles from One
Centerline to the Same File: When
enabled, collections of existing ground profiles associated with a
particular centerline are combined into a single *.PRO
file.
Draw PlanFeatures to current
drawing: When the LandXML contains PlanFeatures, this option
will automatically draw this linework. Otherwise, the program
stores a .pln file which can be drawn using the File > Import
> Polyline File routine.
Save Point Descriptions: For
coordinate records, this option controls whether to use the LandXML
description or code record for the coordinate file point
descriptions.
Add F2F Codes to Points from
PlanFeatures: When the LandXML file contains both coordinates
and plan features, this option adds Field-to-Finish linework codes
to the descriptions of the coordinates. For example, if a plan
feature line ends at point 25, then the Field-to-Finish end
linework code of END is appended to the description of point
25.
Change Directory: This option allows you to adjust the folder location where the new data files will be written.
Import from LandXML: Enable or disable various entries that should used to produce the data files found within the LandXML file.
Unit Differences: If the Units of Measure specified in the LandXML file are different than those found in Drawing Setup, you will be prompted for a course of action.
Manning's "n": If you are importing sewer data from a LandXML file and if the LandXML file does not carry Manning's "n" values, you will be prompted to specify a default Manning's "n" value for all incoming sewer entities that don't already have a Mannings "n" value.
Import Structures: If you are importing sewer data from a LandXML file and
structure values specified in the LandXML file do not exist in the
Structure Library, you will be prompted to indicate the
structure(s) that should be imported into the Structure Library.
Use standard Windows click, shift+click and/or
ctrl+click functionality to select multiple structures at
the same time.
Skip
Invisible Triangles: This option applies to importing TIN
surfaces from Civil 3D. When this option is active, triangles
marked by Civil 3D as invisible or excluded are not
imported.
Pulldown Menu Location(s): File > LandXML
Keyboard Command: landxml_import
Prerequisite: A LandXML file to import