ASEL, Type, Item, Comp, VMIN, VMAX, VINC, KSWP
Selects a subset of areas.
TypeLabel identifying the type of select:
S | — | Select a new set (default) |
R | — | Reselect a set from the current set. |
A | — | Additionally select a set and extend the current set. |
U | — | Unselect a set from the current set. |
ALL | — | Restore the full set. |
NONE | — | Unselect the full set. |
INVE | — | Invert the current set (selected becomes unselected and vice versa). |
STAT | — | Display the current select status. |
The following fields are used only with Type = S, R, A, or U:
ItemLabel identifying data. Valid item labels are shown
in Table 117: ASEL - Valid Item and Component Labels. Some items also require a component
label. If Item = PICK (or simply “P”),
graphical picking is enabled and all remaining command fields are
ignored (valid only in the GUI). Defaults to AREA.
CompComponent of the item (if required). Valid component labels are shown in Table 117: ASEL - Valid Item and Component Labels.
VMINMinimum value of item range. Ranges are area numbers,
coordinate values, attribute numbers, etc., as appropriate for the
item. A component name (as specified on the CM command) may also be substituted for VMIN (VMAX and VINC are ignored). If Item = MAT, TYPE, REAL,
or ESYS and if VMIN is positive, the absolute
value of Item is compared against the range
for selection; if VMIN is negative, the
signed value of Item is compared. See
the ALIST command for a discussion of signed attributes.
VMAXMaximum value of item range. VMAX defaults to VMIN.
VINCValue increment within range. Used only with integer
ranges (such as for area numbers). Defaults to 1. VINC cannot be negative.
KSWPSpecifies whether only areas are to be selected:
0 | — | Select areas only. |
1 | — | Select areas, as well as keypoints,
lines, nodes, and elements associated with selected areas. Valid
only with |
Selects a subset of areas. For example, to select those areas with area numbers 1 through 7, use ASEL,S,AREA,,1,7. The selected subset is then used when the ALL label is entered (or implied) on other commands, such as ALIST,ALL. Only data identified by area number are selected. Data are flagged as selected and unselected; no data are actually deleted from the database.
In a cyclic symmetry analysis, area hot spots can be modified. Consequently, the result of an area selection may be different before and after the CYCLIC command.
If Item = ACCA, the command selects
only those areas that were created by concatenation. The KSWP field is processed, but the Comp, VMIN, VMAX, and VINC fields are ignored.
This command is valid in any processor.
For Selects based on non-integer numbers (coordinates, results,
etc.), items that are within the range VMIN-Toler and VMAX+Toler are selected. The default
tolerance Toler is based on the relative
values of VMIN and VMAX as follows:
If VMIN = VMAX, Toler =
0.005 x VMIN.
If VMIN = VMAX = 0.0, Toler = 1.0E-6.
If VMAX ≠ VMIN, Toler = 1.0E-8 x (VMAX-VMIN).
Use the SELTOL command to override this default and specify Toler explicitly.
Table 117: ASEL - Valid Item and Component Labels
Valid Item and
Component Labels ASEL, Type Item,Comp,VMIN,VMAX,VINC,KSWP | ||
|---|---|---|
| Item | Comp | Description |
| AREA | Area number. | |
| EXT | Area numbers on exterior of selected volumes (ignore remaining fields). | |
| LOC | X, Y, Z | X, Y, or Z center (picking "hot spot" location in the active coordinate system). |
| HPT | Area number (selects only areas with associated hard points). | |
| MAT | Material number associated with the area. | |
| TYPE | Element type number associated with the area. | |
| REAL | Real constant set number associated with the area. | |
| ESYS | Element coordinate system associated with the area. | |
| SECN | Section number associated with the area. | |
| ACCA | Concatenated areas (selects only areas that were created by area concatenation [ACCAT]). | |