Converting model to SubMesh
Ribbon: Topoplan – Create TIN > 
Converting to SUBMESH
Menu: Ground – Creating TIN > Converting to SUBMESH
Toolbar: Creating TIN > Converting to SUBMESH
Command line: NG_TO_SUBDMESH
The command converts Polyface mesh or a set of 3D Face type objects to Submesh type object.
Command prompts:
Apply changes? Yes – conversion will be performed with the current settings.
or [Yes/No]: No – if the settings have been changed, they will not be preserved. Conversion will be performed with the settings that displayed right after the command started.
The command options are set in the Properties bar.
Options:
| Split mesh for optimization | Yes (recommended) – the SubMesh obtained from the selected objects will be exploded to several smaller meshes for further comfortable work. The explosion criteria are set by the Split meshes by topology option. No – a single mesh will be created from the selected objects without splitting to parts. |
| Split meshes by topology | A method of exploding a mesh into smaller meshes: · Yes – split a mesh into parts taking into account both topology (Maximum difference of normals in mesh option), and limitations (no more than 500000 faces). · No – split only on the basis of limitations (no more than 500000 faces). |
| Maximum difference of normals in mesh (degrees) | The maximum allowable deviation of the normal of a mesh element from its average normal (in degrees), at which the element will be considered to belong to this mesh. The normals of elements in each part, into which a single mesh will be split, should not differ by more than a given value. The option determines the number of pieces into which the mesh will be split, if the Split meshes by topology option is set to Yes. |
| Vertex tolerance | Accuracy parameter within which closely located nodes (vertices) of objects will be combined during conversion. For example, the vertices of neighboring faces may not match within 1e-0.4, but with the Vertex tolerance value equal to 1e-0.2 such vertices will be merged into one. |
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