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DGN objects supported in reference models

Last updated March 6, 2017 by Tekla User Assistance tekla.documentation@trimble.com

Software version: 
2017

DGN objects supported in reference models

DGN objects supported in reference models

Tekla Structures can display the following DGN objects in reference models:

Object

Type no.

Description

Cell

2

A collection of grouped entities with a common insertion point/origin, scale and orientation in 2D/3D space.

Line

3

Line string

4

A series of interconnected lines.

Shape

6

Like a line string, but closed (first point = last point).

Text node

7

A multi-line paragraph/block of text.

Curve

11

A parametric spline curve.

Complex chain

12

A chained collection of other entities (lines, line strings, arcs, curves or b-spline curves).

Complex shape

14

Like a complex chain, but closed (first point = last point).

Ellipse

15

Arc

16

Text

17

Supports TrueType fonts and text styles (bold, underline, italic, etc).

3D surface

18

Like a 3D solid, but not capped on the ends.

3D solid

19

The solid created by projecting or rotating from a boundary entity (line, line string, curve, arc or ellipse).

Cone

23

Actually a truncated cone described by two parallel circles; if the radius of both circles is the same, a cylinder is produced.

B-spline surface

24

See description of b-spline curves, which also applies here; additional data is provided by surface boundary entities (type 25).

B-spline curve

27

Can be rational/non-rational, uniform/non-uniform, open/closed; entity type 27 supplies header data and additional data is provided by pole entities (type 21), knot entities (type 26) and weight factor entities (type 28).

Shared cell definition

34

Similar to a DWG block definition; basically defines a set of grouped entities.

Shared cell instance

35

Similar to a DWG block instance; given a particular cell 'definition', numerous cell 'instances' can be created at differing locations, scales and orientations.

Multiline

36

A set of parallel lines, which can be jointed (with or without visible seams at the joints), and have various types of end caps (rounded, square, etc).

Mesh

105

Supports indexed face loops, quad list, quad grid, triangle grid and triangle list meshes.

Smart solid

-

Smart solids (solids created from embedded Parasolid/ACIS data) can be imported into Tekla Structures as wireframe outlines.

Limitations

The following objects have specific limitations:

Object

Type no.

Description

Point string

22

Not supported. (A point string is a series of points with associated orientations; point strings are typically used for defining walkthrough paths).

Dimension

33

Not supported.

Mesh

105

The point cloud mesh type is not currently supported.

Smart solid

-

Smart solids (solids created from embedded Parasolid/ACIS data) are currently supported as wireframe outlines only; for this reason, smart solids do not currently participate in clash checking operations.

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