Description

A topoSetCellSource to select cells belonging to a topologically connected region (that contains given points). If started inside a given subCellSet keeps to it; if started outside stays outside.

Operands

Operand	Type	Location
input	region	`$FOAM_CASE/constant/{<region>, polyMesh}`
output	cellSet	`$FOAM_CASE/constant/polyMesh/sets/<set>`

Description

Example of the regionToCell topoSet by using actions sub-dictionary in system/topoSetDict file:

{
    // Mandatory (inherited) entries
    name        <name>;
    type        cellSet;
    action      <action>;

    // Mandatory entries
    source      regionToCell;
    insidePoints
    (
        (<p1x> <p1y> <p1z>)
        (<p2x> <p2y> <p2z>)
        ...
    );

    // Optional entries
    set       <cellSetName>;
    nErode    <label>;
}

where the entries mean:

Property	Description	Type	Required	Default
name	Name of cellSet	word	yes	-
type	Type name: cellSet	word	yes	-
action	Action applied on cells - see below	word	yes	-
source	Source name: regionToCell	word	yes	-
insidePoints	Coordinate(s) that is inside connected region	vectorList	yes	-
set	Name of cellSet restricting search	word	no	none
nErode	Number of cell layers to erode mesh to detect holes in the mesh - set to 0 if not used	label	no	0

Options for the action entry:

new      | Create a new cellSet from selected cells
add      | Add selected cells into this cellSet
subtract | Remove selected cells from this cellSet