hedge_isequiv

int  hedge_isequiv(<geometry>geometry, int hedge1, int hedge2)

<geometry>

When running in the context of a node (such as a wrangle SOP), this argument can be an integer representing the input number (starting at 0) to read the geometry from.

Alternatively, the argument can be a string specifying a geometry file (for example, a .bgeo) to read from. When running inside Houdini, this can be an op:/path/to/sop reference.

hedge1

The integer representing the first half-edge.

hedge2

The integer representing the second half-edge.

Returns

1 if hedge1 and hedge2 are equivalent, i.e. represent the same edge in the geometry. This is the case when either source and destination points of hedge1 and hedge2 are respectively the same, or source of each of hedge1 and hedge2 is the same as the destination of the other.

Examples

examples

int opposite = 0;

// test if hedges 2 and 3 are oppositely oriented equivalent half-edges
if (hedge_isequiv("defgeo.bgeo", 2, 3))
{
if (hedge_srcpoint("defgeo.bgeo", 2) == hedge_dstpoint("defgeo.bgeo", 3))
opposite = 1;
}