GMS:2D Mesh Commands

When the 2D Mesh module is active, the Mesh menu becomes available. Below is a list of all commands in the Mesh menu:

• New 2D Mesh

  Creates a new, empty 2D mesh.

• 2D Mesh Settings...

  Opens the 2D mesh settings which include: default z values for new nodes, options for deleting triangles etc.

• Lock All Nodes

  Since it is possible to accidentally drag points, nodes can be "locked" to prevent them from being dragged or edited by toggling on this command.

• Find Element...

  Selects an element given the element ID.

• Find Node...

  Selects a node given the node ID.

• Triangulate

  Creates triangular elements from all or selected nodes using the Delauney criteria. If triangles already exist, they will be deleted.

• Renumber

  Renumbers mesh nodes eliminating gaps in numbering. Optionally a node string can be created and used to guide the renumbering.

• Convert To
  • Mesh → 2D Scatter Points

    A new 2D scatter point set is created from the 2D mesh nodes.

  • Mesh → TIN

    A new TIN is created from the 2D mesh.

  • Contours → Arcs

    Creates a new coverage containing feature arcs derived from the linear contours displayed on the 2D mesh.

• Advanced
  • Select Thin Triangles

    Selects triangles which meet the "thin triangle aspect ratio" specified in the 2D mesh settings.

  • Find Duplicate Nodes...

    Selects nodes that are close to each other within a user specified tolerance.

  • Merge Triangles

    Used to convert triangular elements into quadratic elements.

  • Split Quadrilaterals

    Used to convert quadrilateral elements into triangular elements.

  • Add Breaklines

    Inserts the node strings into the mesh as a new edge, creating new elements and nodes.

  • Convert Elements

    Converts linear elements to quadratic and quadratic elements to linear.

  • Refine Elements

    Subdivides elements into smaller elements.

  • Relax Elements...

    Moves mesh nodes in order to improve the quality (element shape and size) of the mesh.

  • Mesh → 3D Tets

    Creates a 3D mesh consisting of tetrahedron from the 2D mesh.

  • Export

    Exports a 2D mesh to a file (*.2dm, *.fem etc).