SELECT

Selects subsets of different types of objects (solids, nodes, elements etc). These subsets can be combined to a group with the command GROUP_DEF. All commands have only reference to the selected (active) objects.

This page discusses:

SELECT, object, type, item, lab1, lab2, lab3

object

Specifies the object type:

ALL

All object types.

CS

Coordinate systems.

ELEM

Elements.

ELGR

Element groups.

EPROP

Element properties.

ETYPE

Element types.

MAT

Material types.

NDGR

Node groups.

NODE

Nodes.

NONE

Deactivates all currently selected objects (unselect).

SOLID

Solids (primitives).

type

Selection type:

S

Selection of a subset from the total set of this object type.

R

Reselection from the current subset.

A

Addition to the current subset.

U

Subtraction from the current subset.

ALL

Selects all specified objects.

NONE

Selects none of the specified objects (unselect).

INV

Switches the currently selected objects with the not selected objects.

object=ALL

No further specification is possible.

object=CS

SELECT, CS, type, item, lab1

item

CS

Coordinate system.

lab1

<cs_name>

Name of the Coordinate system.

object=ELEM

SELECT, ELEM, type, item, lab1, lab2, lab3

item

ELEM

The elements between min_value and max_value are selected by increment.

lab1

<min_value>

Lowest element ID.

lab2

<max_value>

Highest element ID.

lab3

<increment>

Increment.

SELECT, ELEM, type, item, lab1, lab2

item

LAYER

The elements are selected by layer starting from the active elements.

lab1

<layer_number>

Number of element layers.

lab2

The selection of the next layer is realized by common nodes, edges or faces:

POINT

Common nodes.

LINE

Common element edges.

AREA

Common element faces.

SELECT, ELEM, type, item

item

ELGR

Selection of the elements of the active element groups.

EPROP

Selection of the elements with the active element properties.

ETYPE

Selection of the elements with the active element types.

MAT

Selection of the elements with the active material types.

ND_ALL

Selection of the elements in which all nodes are active.

ND_ANY

Selection of the elements in which at least one node is active.

object=ELGR

SELECT, ELGR, type, item, lab1

item

ELGR

Selection of element groups by name.

lab1

<el_group>

Name of the element group.

object=EPROP

SELECT, EPROP, type, item, lab1

ITEM

EPROP

Selection of element properties by number.

lab1

<value>

Number of the element property.

SELECT, EPROP, type, item, lab1

ITEM

EPROP_NAME

Selection of element properties by name.

lab1

<name_of_eprop>

Name of the element property.

object=ETYPE

SELECT, ETYPE, type, item, lab1

item

ETYPE

Selection of element types by name.

lab1

<name_of_etype>

Name of the element type.

object=MAT

SELECT, MAT, type, item, lab1

item

MAT

Selection of materials by number.

lab1

<value>

Number of material.

SELECT, MAT, type, item, lab1

item

MAT_NAME

Selection of materials by name.

lab1

<name_of_mat>

Name of material.

object=NDGR

SELECT, NDGR, type, item, lab1

item

NDGR

Selection of node groups by name.

lab1

<name_of_nd_group>

Name of the node group.

object=NODE

SELECT, NODE, type, item

item

ELEM

Selection of the nodes of the active elements. (including midside nodes).

ELGR

Selection of the nodes of the active element groups.

FIX_ALL

Selection of all nodes which are fixed in all translational degrees of freedom.

FIX_ANY

Selection of all nodes which are fixed in at least one translational degree of freedom.

FIX_UX

Selection of all nodes which are fixed in x-direction.

FIX_UY

Selection of all nodes which are fixed in y-direction.

FIX_UZ

Selection of all nodes which are fixed in z-direction.

CORNER_NODE

Selection of all corner nodes.

MIDSIDE_NODE

Selection of all midside nodes.

NDGR

Selection of all nodes of the active node groups.

ND_ESF

Selection of the nodes on the boundary of the active elements (including inner surfaces).

ND_SF

Selection of the active surface nodes.

SOLID

Selection of the nodes in the active solids.

SELECT, NODE, type, item, lab1, lab2, lab3

item

NODE

The nodes between min_value and max_value are selected by increment.

lab1

<min_value>

Lowest node number.

lab2

<max_value>

Highest node number.

lab3

<increment>

Increment.

SELECT, NODE, type, item, lab1, lab2, lab3

item

DISP_DX

Nodes with enforced x-displacement (in cs=lab3) between min_value and max_value.

DISP_DY

Nodes with enforced y-displacement (in cs=lab3) between min_value and max_value.

DISP_DZ

Nodes with enforced z-displacement (in cs=lab3) between min_value and max_value.

LOC_1 (or LOC_X)

Selection of the nodes with first coordinate value between min_value and max_value in cs=lab3.

LOC_2 (or LOC_Y)

Selection of the nodes with second coordinate value between min_value and max_value in cs=lab3.

LOC_3 (or LOC_Z)

Selection of the nodes with third coordinate value between min_value and max_value in cs=lab3.

lab1

<min_value>

Minimum value.

lab2

<max_value>

Maximum value.

lab3

<cs_name>

Name of the coordinate system.

object=SOLID

SELECT, SOLID, type, item, lab1, lab2, lab3

item

SOLID

Selection of solids by name.

lab1

<name_of_solid>

Name of the solid.

Examples

Select all surface nodes. Very useful for shape optimization. See also :

! Selecting all elements for surface identification
select,elgr,s,elgr,ALL_ELEMENTS
select,elem,s,elgr
SF_IDENT
! select surface nodes
select,node,s,ND_SF

All nodes inside the solid SOL_1 should be selected:

SELECT, SOLID, S, SOLID, SOL_1
SELECT, NODE, S, SOLID

Selection of all surface nodes of the elements in the design area. The elements in the design area have property 4.

SELECT, EPROP, S, EPROP, 4
SELECT, ELEM, S, EPROP
SELECT, NODE, S, ELEM
SELECT, NODE, R, ND_SF

Selection of all elements at least with one node of the node group design_nodes and two layers of elements around that element group.

SELECT, NDGR, S, NDGR, design_nodes
SELECT, NODE, S, NDGR
SELECT, ELEM, S, ND_ANY
SELECT, ELEM, A, LAYER, 2, POINT

Selection of all surface nodes of the automatically generated mesh smooth node group except for nodes of the node group no_mesh_smooth

SELECT,NDGR,S,NDGR,MESH_SMOOTH_NODE
SELECT,NODE,S,NDGR
SELECT,NODE,R,ND_SF
SELECT,NDGR,S,NDGR,NO_MESH_SMOOTH
SELECT,NODE,U,NDGR