neighbours

int [] neighbours(<geometry>geometry, int ptnum)

<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.

This is a simpler, array-based replacement for the combination of neighbourcount and neighbour. The array contains the numbers of all points that share an edge with ptnum. The point numbers are in no particular order. Examples

examples

This is roughly equivalent to the following code:

int []
neighbours(int opinput, int ptnum)
{
    int     i, n;
    int     result[];
    n = neighbourcount(input, ptnum);
    resize(result, n);
    for (i = 0; i < n; i++)
        result[i] = neighbour(input, ptnum, i);
}