Creating a Size Control on an Edge

  1. On the ribbon, click Size .
  2. Click the Select Edges tool guide and select an edge to which you want to add a local size control. You may use Box Select to choose multiple edges simultaneously.
    Note: You may apply a size control to blocking edges or geometry edges. If the Ghost blocked geometry option is enabled (default) and the mesh has been generated, blocking edges will be selected. To select geometry edges instead, disable the Ghost blocked geometry option or hide the blocking in the Structure tree.
  3. In Size Options, choose Use element size or Use edge division for the sizing control.
  4. Specify a value for Number of divisions or Element Size and press Enter.
    Pressing Enter does not trigger a remesh, but the new number of divisions or element sizing is previewed on the edge.
  5. (Optional) If required, enable Copy to parallel edges. This allows you to set consistent edge sizing on several edges, such as the radial O-grid edges, with one setting. The parallel edges are highlighted.
  6. (Optional) If required, toggle the icon to set a Locked (behavior Hard) or Unlocked (behavior Soft) sizing control. The default behavior is Unlocked.
    Note:
    • This option applies only to blocking edges.
    • To avoid size conflicts on topologically parallel edges, only one edge should be locked. Alternatively, all locked and parallel edges must have the same number of divisions.
    • Mapped faces must have equal number of divisions on opposite edges. When edge sizes conflict, the most recently set sizing control will be applied.
  7. (Optional) Choose an Edge Biasing option.
    Option Description
    No Bias No biasing is applied to the edge. Elements are uniformly sized.

    Linear Bias: Right

    or

    Linear Bias: Left

    This is a single side bias based on the Bias method selected.

    • When By factor is selected, the bias factor is divided linearly across all elements.
    • When Height and ratio is selected, the edge biasing can be set by the height and ratio specified. Specify the height and ratio at the Start (V1) or End (V2) vertex (depending on the biasing direction) of the blocking edge selected. Height 1 and Height 2 are the heights applied at the Start (V1) and End (V2) vertices indicated in the display.

    An arrow is shown on the edge to indicate the direction of increase in size.

    Note: Select block edges when the Height and ratio option is used.

    Bell Curve Bias

    or

    Exponential Bias

    This is a both sides bias based on the Bias method selected.

    • When By factor is selected, the bias factor is divided geometrically between all elements.
    • When Height and ratio is selected, the edge biasing can be set by the height and ratio specified. Specify the height and ratio at the Start (V1) and End (V2) vertex of the blocking edge selected.
      • The Height values are defined at the ends of the edge. Height 1 (H1) and Height 2 (H2) are the heights applied at the Start (V1) and End (V2) vertices indicated in the display.
      • For Exponential biasing, the ratio values should be greater than 1.
      • For Bell Curve biasing, the ratio values should be less than 1.

    An arrow is shown on the edge to indicate the direction of increase in size.

    Note:
    • Select block edges when the Height and ratio option is used.
    • Specify different values for height 1 and height 2 (or ratio 1 and ratio 2) to ensure that the Height and ratio method is used for edge sizing. If the values are identical, the mesher will revert to sizing based on bias factor.
  8. Repeat steps 4-7 until you are satisfied with the previewed size. Then press Enter a second time or click Complete to apply the new size.