Import Settings

Review the descriptions and compatible file formats for each import, export, and publish setting.

Import Dialog PageSetting - DescriptionFile Formats
3D shape3D shapes are closed 3D linear elements that you can choose to merge (if on the same level) into a triangular mesh surface during import.dgn
AlignmentsIn LandXML import, you can select multiple alignments; a single LandXML file can contain multiple groups and multiple alignments within a group.LandXML
Assign global coordinateTo place the IFC objects in the correct location, ensure that the correct origin is calculated and specify an insertion point translation, if necessary.ifc
Block/XRefDecide if the geometric components of blocks will be imported and if the objects in the Xref(s) will be imported.dwg
Cell settingsExplode cell options for merging when importing in Cell settings:
  • Merge points of the same cell into multi-point
  • Merge points of the same cell into multi-curve
dgn
Column properties

There are two dialog boxes with this title:

Select Column Types - After selecting the correct value separator, the columns should display in different colors below. If the first row in the file describes the column properties, select First row is a header. If not, or if the column properties are still incorrect, select the column header(s) that are incorrect and assign the appropriate property from column properties.

Select Object Types - Select the structure definition of the objects in the file (each row is a separate feature is most common) and select the type of geometry to be imported.

las
Config association and other settingsCreate association helps ensure that file updates are applied correctly and Import mapped item as sub model will create a sub model with the import, rather than merging directly into the main model.ifc
ElevationEnter a numeric value to use for undefined elevations.dgn
Object existenceChange the state to either Proposed or Existing, depending on the phase of the construction the data is from. Most design data will be on the Proposed state, while data from the field may be on the Existing. The presentation of objects can be dependent on this setting.
  • Proposed - As-designed
  • Existing - As-built
  • Time frame
dgn
Field codesAttribute Name

LandXML Attribute

LandXML
GRID settings

Use optimal grid size - The calculation will automatically use the optimal grid size to create the grid surface.

Set grid size - Specify a user-defined grid size.

Calculate elevation for rectangles without elevation - With this selected, it will interpolate the surface to create an elevation value.

las
Ignore featuresSelect whether or not objects on Layer 0 and blocks at the model origin (such as sheet models) will be ignored upon import.dwg
Import asThis is already described well enough under Type of objects being imported.shp
Import/ReimportSelect object handling behavior for re-import of updated files and import of new files.dgn
Layer settingsBelow are the layer's Name, Description, and State. Layers can be excluded from import if they are off, frozen, or locked.dwg
Level settingsBelow are the layer's Name, Description, and State. Layers can be excluded from import if they are off, frozen, or locked.dgn
Measurement unitsSelect the working units of the source file.dwg
MethodYou can set the z-values as elevations and create vertical geometry and change the .shp file text encoding format.shp
ModelsYou can select which model in a DGN to import (a DGN can have several models). You can also select the level of references that you want to bring in. By default, no references are imported because they might create circular references.dgn
Options

X is Northing

Select whether you want to switch the x and y coordinates to import the surface correctly. Choose Yes to switch.
ttm
Point settingSelect whether point clouds will be created from points on the same level, the minimum number of points required for point cloud creation, and the maximum distance between points for individual point cloud creation.dgn
Points to point cloudOptions for reading points into cloudssos
Polyline/3D FaceSelect whether to convert closed polylines to surfaces. Select Layers to merge 3D faces/3D polylines and the geometry type they should be imported as.dwg
Polyline/SurfaceSelect whether to convert closed polylines to surfaces.

Include rule element when exploding surface - Select whether to explode to triangles or sub elements

dgn
Preview after reading filesSelect this checkbox to get a 2D preview of the import.
Solid/SurfaceWhen importing solid/surface geometry (SURFACE/SOLID/MESH/POLYFACE/...) from dwg, there are two ways to convert the solid/surface geometry: TIN (triangulated irregular network) or NURBS (non-uniform rational basis spline).dwg
Spatial geometry

Data Point Filtering

None (Takes all points with factor 1)

The surface will have 1 point per pixel defined in the .tif

FilterAllows filtering of the data points based on a specified factor

Origin Point For Filter: Defines the starting point for the filter, e.g., BottomLeft.

Original Grid Size: Distance between elevation points in the file (default is 1).

Resulting Grid Size: Calculated by multiplying the Filter Grid Size by the Original Grid Size. For example, a factor of 2 results in every 2nd point being used, thus reducing the number of points.Original Total Points: The total number of points in the original dataset.Resulting Total Points: The number of points after applying the filter.

Use Data Point to Create

Grid surface: Creates a regular grid surface based on the filtered points.

Tin surface: Creates a Triangulated Irregular Network (TIN) surface, made up of non-uniform triangles.

Point cloud surface: Creates a surface that represents a collection of three-dimensional points.

tif
Spatial metadataSpecify the tolerance of the measurements or surveying, i.e., the accuracy of the objects geometrical parameters.A collection of parameters defining the method of collecting the data and the origin of the geometry can also be registered.The registered value for accuracy will influence the priority given to the geometry e.g. by crossing lines during triangulation, where the lines with best accuracy (lowest number) are prioritized before those with lower accuracy (higher number).
Tip: Widen the dialog to see the full descriptive text at the top.
dgn
TIN settings

Use removal of long-edge triangle at edge of model Enabling this will remove triangles with long edges that occur at the boundary of the model. This is used to refine the edges of the TIN surface, reducing irregularities.

Max length of edge Specify the maximum length an edge can be on the outer edge of the TIN surface, any edge with a length above this will be removed.

las
Value separatorSelect the text encoding format and the type of delimiter(s).