Supported data

The JT Open Program develops and supports the DirectModel format JT. It is a format for the visualization of 3D models.

Supported items are assembly, instances, materials, curves, XT-Brep, JT-brep, LODS.

Alias maintains the following information when importing JT files:

• Precise geometric data conversion
• Data organization (parent and child hierarchal data, visibility, and instances) Units
• Levels of detail (degrees of tesselation)
• Materials (brightness (shininess), ambient color, specular color, diffuse color, and emission color)
• Textures (embedded image files)
• XTBREP and BREP topology

Options

Logfile Output

Creates a log file containing a list of path names of imported files, a list of warning and/or error messages, and the options string.

Convert Points

Converts JT points to Alias points.

Convert Curves

Converts JT curves to Alias curves.

Convert Nurbs

Converts JT NURBS to Alias NURBS.

Keep Topology

Keeps the topology for sheet and solid bodies.

Shrink Surfaces

Alias detects trimmed surfaces whose trim boundaries are the same as, or iso-parametric to, the natural boundaries of the untrimmed surface. It then converts these surfaces into Alias surfaces by shrinking the untrimmed surface to the trim boundaries.

When this option is not selected, Alias converts all trimmed surfaces of this type to Alias trimmed surfaces.

Convert Meshes

Converts JT meshes to Alias meshes.

Level of Detail

Specify the level of detail if Convert Meshes is selected: Highest, Lowest, All.

Merge Vertices

Merges vertices within the given tolerance when the file is retrieved.

Tolerance (units)

This option is only visible if Merge Vertices is selected. The value is the tolerance within which vertices of the tessellated mesh are considered to be coincident and will be merged. Increase this value to broaden the distance within which vertices will be considered coincident.

The slider range is 0.0001 to 10. The default value is 0.0001.