Use the Remesh Tetras tool to selectively change the density of the tetrahedral (3D) elements in a portion of the model.
To use this tools, click 
().
Dialog elements
- Selections (Remesh Tetras)
- Use the options in this group to control how much of the model is to be remeshed. Options include:
- Remesh all tetras in active layer
- Enables all tetrahedral elements in the currently active layer to be remeshed without the need to explicitly select regions of the model. Use this option when optimizing sections of the mesh that would be time consuming to reselect, for example to iteratively test various mesh settings. If necessary, use the model entity selection tools to select individual mesh elements or regions of the mesh and assign the selected elements to a new layer.
- Select a region
- Enables the selection of a specific region in the current layer, which may include a single tetrahedral element to multiple elements. Use the model entity selection tools to select individual mesh elements or regions of the mesh.
- Target number of elements through thickness (Remesh Tetras)
- This option specifies the number of element layers through the thickness of the area to be remeshed. Specify a higher value than the default of 6 to increase the level of result precision through the thickness of the area.
- Surface (Remesh Tetras)
- Use the options in this group to control how the surface will be remeshed. Options include:
- Do not remesh surface
- Select this option to prevent the surface mesh from being refined. Use this option when you want to refine the Target number of elements through thickness and leave the granularity of the surface mesh unchanged.
- Remesh surface by edge length
- Select this option to specify to what extent the surface mesh will be refined. Use this option to refine the granularity of result in across the surface of the model. Leave the
Target number of elements through thickness
set to the default value of 6 if you do not want to refine the mesh through the thickness.
Tip: Use the
Measure tool to establish the edge length of existing elements. - Create as
- Allows you to simultaneously create a modeling entity and assign properties to it. For example
- You can create a curve and assign runner properties to it.
- You can create a region and assign part surface properties to it.
In some cases you have the option to Create as modeling entity. No properties will be assigned. This option may be appropriate if, for example, you are creating curves to construct a region. You must assign properties to the region, but you don't need to assign properties to the curves.
Tip: To change the properties of an entity, click Change. - Filter
- The filter helps you select a desired model or mesh entity. When you use a filter, the pointer will snap to the specified entity.