hedge_isvalid

int  hedge_isvalid(<geometry>geometry, int hedge)

<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.

hedge

The integer representing a half-edge.

Returns

1 if hedge represents a valid half-edge in the referenced geometry, or 0 otherwise.

Examples

examples

int srcpt;

// find the source point of a half-edge number 3 if it is valid
if (hedge_isvalid("defgeo.bgeo", 3))
srcpt = hedge_srcpoint("defgeo.bgeo", 3);