Main Page Class Hierarchy Compound List File List Compound Members

csIntersect2 Class Reference

Some functions to perform various intersection calculations with 2D line segments. More...

#include <math2d.h>

List of all members.

Static Public Methods

bool IntersectPolygon (const csPlane2 &plane, csPoly2D *poly, csSegment2 &segment)

Intersect a plane with a 2D polygon and return the line segment corresponding with this intersection. More...

bool Segments (const csSegment2 &a, const csSegment2 &b, csVector2 &isect, float &dist)

Compute the intersection of the 2D segments. More...

bool SegmentLine (const csSegment2 &a, const csSegment2 &b, csVector2 &isect, float &dist)

Compute the intersection of a 2D segment and a line. More...

bool Lines (const csSegment2 &a, const csSegment2 &b, csVector2 &isect)

Compute the intersection of 2D lines. More...

bool Plane (const csVector2 &u, const csVector2 &v, const csPlane2 &p, csVector2 &isect, float &dist)

Intersect a 2D segment with a plane. More...

bool Plane (const csSegment2 &uv, const csPlane2 &p, csVector2 &isect, float &dist)

Intersect a 2D segment with a plane. More...

void PlaneNoTest (const csVector2 &u, const csVector2 &v, const csPlane2 &p, csVector2 &isect, float &dist)

Return the intersection point. More...

void PlaneNoTest (const csSegment2 &uv, const csPlane2 &p, csVector2 &isect, float &dist)

Return the intersection point. More...

bool Planes (const csPlane2 &p1, const csPlane2 &p2, csVector2 &isect)

Intersect 2 planes to get the point that is part of all two planes. More...

Detailed Description

Some functions to perform various intersection calculations with 2D line segments.

This is a static class and contains only static member functions.

Member Function Documentation

bool csIntersect2::IntersectPolygon ( const csPlane2 & plane,

csPoly2D * poly,

csSegment2 & segment ) [static]

Intersect a plane with a 2D polygon and return the line segment corresponding with this intersection.
Returns true if there is an intersection. If false then 'segment' will not be valid.

bool csIntersect2::Lines ( const csSegment2 & a,

const csSegment2 & b,

csVector2 & isect ) [static]

Compute the intersection of 2D lines.
Return true if they intersect, with the intersection point returned in isect.

bool csIntersect2::Plane ( const csSegment2 & uv,

const csPlane2 & p,

csVector2 & isect,

float & dist ) [inline, static]

Intersect a 2D segment with a plane.
Returns true if there is an intersection, with the intersection point returned in isect. The distance from u to the intersection point is returned in dist. The distance that is returned is a normalized distance with respect to the given input vector. i.e. a distance of 0.5 means that the intersection point is halfway u and v.

bool csIntersect2::Plane ( const csVector2 & u,

const csVector2 & v,

const csPlane2 & p,

csVector2 & isect,

float & dist ) [static]

Intersect a 2D segment with a plane.
Returns true if there is an intersection, with the intersection point returned in isect. The distance from u to the intersection point is returned in dist. The distance that is returned is a normalized distance with respect to the given input vector. i.e. a distance of 0.5 means that the intersection point is halfway u and v.

void csIntersect2::PlaneNoTest ( const csSegment2 & uv,

const csPlane2 & p,

csVector2 & isect,

float & dist ) [inline, static]

Return the intersection point.
This version does not test if there really is an intersection. It just assumes there is one.

void csIntersect2::PlaneNoTest ( const csVector2 & u,

const csVector2 & v,

const csPlane2 & p,

csVector2 & isect,

float & dist ) [inline, static]

Return the intersection point.
This version does not test if there really is an intersection. It just assumes there is one.

bool csIntersect2::Planes ( const csPlane2 & p1,

const csPlane2 & p2,

csVector2 & isect ) [static]

Intersect 2 planes to get the point that is part of all two planes.
Returns true, if there is a single point that fits. If the planes are parallel, then it will return false.

bool csIntersect2::SegmentLine ( const csSegment2 & a,

const csSegment2 & b,

csVector2 & isect,

float & dist ) [static]

Compute the intersection of a 2D segment and a line.
Return true if they intersect, with the intersection point returned in isect, and the distance from a1 of the intersection in dist.

bool csIntersect2::Segments ( const csSegment2 & a,

const csSegment2 & b,

csVector2 & isect,

float & dist ) [static]

Compute the intersection of the 2D segments.
Return true if they intersect, with the intersection point returned in isect, and the distance from a1 of the intersection in dist.

The documentation for this class was generated from the following file:

math2d.h