Compass 3D¶

Functionality¶

The node is designed to get the intersection between a sphere and one endless straight line.

This problem has three possible solutions:

No intersection: the distance of the center of the sphere to the line is bigger than its radius
One intersection: the line is tangent to the sphere.
Two intersections: the line passes through the sphere intersecting it surface in two points.

The line by two vector creating one segment.

Param	Type	Description
Vertices	Vector	Points to calculate
Edges	Int List	Edges data to define the segments (to define the line)
Center	Vectors	It will get the first and last vertices’s to define the line segment
Radius	Float	Radius of the intersecting sphere

In the N-Panel (and on the right-click menu) you can find:

Output NumPy: to get NumPy arrays in stead of regular lists (makes the node faster). Only in the NumPy implementation.
Match List Global: Define how list with different lengths should be matched. Refers to the matching of groups (one line per group)
Match List Local: Define how list with different lengths should be matched. Refers to the matching of tolerances and vertices

Intersect Line: Returns True if the there is valid intersection.
Intersection A: Returns the intersection nearer to the end point of the segment. In case of no intersection returns the closest point on the line.
Intersection B: Returns the intersection nearer to the start point of the segment. In case of no intersection returns the closest point on the line.
Int. A in segment: Returns True if A intersection is over the segment.
Int. B in segment: Returns True if B intersection is over the segment.
First in segment: Returns the first valid value between Int. A, Int. B and Closest point.
Int. with segment: Returns True if the closest point is between the input vertices.
All Segment int.: Returns a flat list of all the intersections.