Math::sphere Class Reference
#include <sphere_.h>
Detailed Description
A 3-dimensional sphere.(C) 2004 RadonLabs GmbH
Public Member Functions | |
| sphere () | |
| default constructor | |
| sphere (const point &_p, scalar _r) | |
| pos/radius constructor | |
| sphere (scalar _x, scalar _y, scalar _z, scalar _r) | |
| x,y,z,r constructor | |
| sphere (const sphere &rhs) | |
| copy constructor | |
| void | set (const point &_p, scalar _r) |
| set position and radius | |
| void | set (scalar _x, scalar _y, scalar _z, scalar _r) |
| set x,y,z, radius | |
| bool | inside (const bbox &box) const |
| return true if box is completely inside sphere | |
| bool | intersects (const sphere &s) const |
| check if 2 spheres overlap | |
| bool | intersects (const bbox &box) const |
| check if sphere intersects box | |
| bool | intersect_sweep (const vector &va, const sphere &sb, const vector &vb, scalar &u0, scalar &u1) const |
| check if 2 moving sphere have contact | |
| rectangle< scalar > | project_screen_rh (const matrix44 &modelView, const matrix44 &projection, scalar nearZ) const |
| project sphere to screen rectangle (right handed coordinate system) | |
| ClipStatus::Type | clipstatus (const bbox &box) const |
| get clip status of box against sphere | |
Member Function Documentation
| bool Math::sphere::inside | ( | const bbox & | box | ) | const [inline] |
return true if box is completely inside sphere
Return true if the bounding box is inside the sphere.
| bool Math::sphere::intersects | ( | const bbox & | box | ) | const |
check if sphere intersects box
Check if sphere intersects with box. Taken from "Simple Intersection Tests For Games", Gamasutra, Oct 18 1999
| bool Math::sphere::intersect_sweep | ( | const vector & | va, | |
| const sphere & | sb, | |||
| const vector & | vb, | |||
| scalar & | u0, | |||
| scalar & | u1 | |||
| ) | const |
check if 2 moving sphere have contact
Check if 2 moving spheres have contact. Taken from "Simple Intersection Tests For Games" article in Gamasutra, Oct 18 1999
- Parameters:
-
va [in] distance travelled by 'this' sb [in] the other sphere vb [in] distance travelled by sb u0 [out] normalized intro contact u1 [out] normalized outro contact
| rectangle< scalar > Math::sphere::project_screen_rh | ( | const matrix44 & | view, | |
| const matrix44 & | projection, | |||
| scalar | nearZ | |||
| ) | const |
project sphere to screen rectangle (right handed coordinate system)
Project the sphere (defined in global space) to a screen space rectangle, given the current View and Projection matrices. The method assumes that the sphere is at least partially visible.
| ClipStatus::Type Math::sphere::clipstatus | ( | const bbox & | box | ) | const [inline] |
get clip status of box against sphere
Get the clip status of a box against this sphere. Inside means: the box is completely inside the sphere.