---
name: "SbPlane"
section: "3iv"
platform: "linux"
package: "inventor-doc"
version: "2.1.6+ds-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SbPlane/3iv"
---

# SbPlane(3iv)

oriented plane in 3D

## NAME

SbPlane — oriented plane in 3D

## INHERITS FROM

SbPlane

## SYNOPSIS

**#include \<Inventor/SbLinear.h\>**

Methods from class SbPlane:

	**SbPlane()**\
 	**SbPlane(const SbVec3f &p0, const SbVec3f &p1, const SbVec3f &p2)**\
 	**SbPlane(const SbVec3f &normal, float distance)**\
 	**SbPlane(const SbVec3f &normal, const SbVec3f &point)**\
 **void**	**offset(float d)**\
 **SbBool**	**intersect(const SbLine &l, SbVec3f &intersection) const**\
 **void**	**transform(const SbMatrix &matrix)**\
 **SbBool**	**isInHalfSpace(const SbVec3f &point) const**\
 **const SbVec3f &**	**getNormal() const**\
 **float**	**getDistanceFromOrigin() const**\
 **int**	**operator ==(const SbPlane &p1, const SbPlane &p2)**\
 **int**	**operator !=(const SbPlane &p1, const SbPlane &p2)**

## DESCRIPTION

**Represents an oriented plane in 3D. This is a lightweight class/datatype that is used for arguments to some Inventor objects.**

## METHODS

	**SbPlane()**\
 	**SbPlane(const SbVec3f &p0, const SbVec3f &p1, const SbVec3f &p2)**\
 	**SbPlane(const SbVec3f &normal, float distance)**\
 	**SbPlane(const SbVec3f &normal, const SbVec3f &point)**\
 Constructors. **p0**, **p1**, and **p2** represent three points in the plane. **normal** is a normal vector, **distance** is distance from origin to plane along normal vector, and **point** is a point in 3-space for the plane to pass through.

**void**	**offset(float d)**\
 Offset a plane by a given distance.

**SbBool**	**intersect(const SbLine &l, SbVec3f &intersection) const**\
 Intersect line and plane, returning TRUE if there is an intersection, FALSE if line is parallel to plane.

**void**	**transform(const SbMatrix &matrix)**\
 Transforms the plane by the given matrix.

**SbBool**	**isInHalfSpace(const SbVec3f &point) const**\
 Returns TRUE if the given point is within the half-space defined by the plane.

**const SbVec3f &**	**getNormal() const**\
 Returns normal vector to plane.

**float**	**getDistanceFromOrigin() const**\
 Returns distance from origin to plane.

**int**	**operator ==(const SbPlane &p1, const SbPlane &p2)**\
 **int**	**operator !=(const SbPlane &p1, const SbPlane &p2)**\
 Equality/inequality comparison operators.

## SEE ALSO

**SbVec3f, SbLine**