# Intersect Sphere Plane¶

## Description¶

This node returns the intersection circle of input sphere and plane. A plane intersects a sphere in a circle, the node returns the radius and location of this circle.

## Illustration¶

Orange point is the center of the blue intersected circle.

## Inputs¶

**Sphere Center**- The location of the center of the required sphere.**Sphere Radius**- The radius length of the required sphere.**Plane Point**- A point on the required plane.**Plane Normal**- A unit vector that represent the normal of the required plane.

## Outputs¶

**Circle Center**- The location of the center of the intersected circle.**Circle Radius**- The radius length of the intersected circle. If this values is zero and*Is Valid*is True, that that means that the plane is tangent to the sphere at the*Circle Center*.**Is Valid**- A boolean which is True if an intersection was found, and False otherwise.

## Advanced Node Settings¶

## Examples of Usage¶

Notice that the normal of the intersection circle is the normal of the input plane.