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Edit a Group Example

This example demonstrates editing several groups.

$$
$$ Declarations
$$
    ENTITY/L(4),C(2),GRP(2)
$$
$$ Geometry Definition
$$
    L(1)=LINE/0,0,1,0
    L(2)=LINE/0,0,0,1
    L(3)=LINE/0,0,-1,0
    L(4)=LINE/0,0,0,-1
    C(1)=CIRCLE/0,0,1
    C(2)=CIRCLE/1,1,2.5
$$
$$ Group Definition
$$
    GRP(1)=GROUP/L(1..2)
    GRP(2)=GROUP/L(3..4)
$$
$$ Group Edits
$$
    GRPEDT/ADD,GRP(1),C
    GRPEDT/ADD,GRP(1),GRP(2)
    GRPEDT/REMOVE,GRP(2),L(1),L(3)

GRP(2) becomes a subgroup of GRP(1) when it is added. L(1) and L(3) become independent objects when they are removed from GRP(1).