pcsegment

Since	18.0

int [] pcsegment(<geometry>geometry, string PChannel, vector P0, vector P1, float max_distance, int maxpoints)

int [] pcsegment(<geometry>geometry, string ptgroup, string PChannel, vector P0, vector P1, float max_distance, int maxpoints)

int [] pcsegment(<geometry>geometry, string PChannel, vector P0, vector P1, float max_distance, int maxpoints, float &distances[])

int [] pcsegment(<geometry>geometry, string ptgroup, string PChannel, vector P0, vector P1, float max_distance, int maxpoints, float &distances[])

<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.

These functions open a geometry file and return a list of points within max_distance of the line segment passing from P0 to P1.

The ptgroup is a point group that limits the points to search. This is a SOP-style group pattern, so can be something like 0-10 or @Cd.x>0.5. A blank string is treated as matching all points.

The function also optionally takes a float array distances, which it modifies with the distances to each point.