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Mesh boundary

Mesh boundary

Mesh Boundary

MouseOK   Ribbon: TopoplanModify TIN >  Boundary Mesh

MouseOK   Menu: GroundEditing TIN >  Boundary Mesh

MouseOK   Toolbar: Editing TIN >  Boundary Mesh

KeyboardOK Command line: NG_MESH_BOUNDARY

The command purpose is to remove faces with edges of a certain length, which can prevent from the correct construction of contours.

 

Preliminary actions

Before running the command it is necessary to define the length of edges. Measurement can be performed by the Distance between points (DIST) command. To do this, run the command with the enabled ENDpoint snap and make measurement. In this case, the obtained distance values will be displayed in the Properties toolbar:

 

Mesh Boundary

The command options are set on the Properties bar.

Options:

Only external boundary

Yes – changes will only affect the outer triangles. When you specify No, triangles inside a mesh can be changed.

Maximum edge length

It is necessary to specify a value slightly less than that measured by the Distance between points (DIST) command.

Edge units

Length units – specifies that the value in the Maximum length field is set in the drawing units (meters).

Percent – specifies that the value in the Maximum length field is set as percentage.

Project points to UCS XY plane

To define what triangles should be removed, lengths of edge projections are compared with the Maximum length. If specify No, projections to the plane of the current view will be used. If specify Yes, lengths of projections to UCS XY plane will be compared.

 

Command prompts:

Apply changes [Yes/No/Save/SaveDefault] <Yes>:

Yes – mesh boundaring will be performed with the current settings.

No – if settings have been changed, they are not saved. Boundaring will be performed with the settings that were displayed immediately after running the command.

 

Edge that prevents from the correct construction of contours

Result of the mesh boundaring

 

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