Unigine::WorldBoundSphere Struct

功能列表:

Name	描述 View: Sort by:
*create*	Constructor.
operator =	Assignment operator for the bounding sphere.
clear	Clears the bounding sphere.
setCenter	Sets the specified coordinates for the center of the bounding sphere.
set	Sets the bounding sphere by its center and radius.
isValid	Checks the bounding sphere status.
setTransform	Sets the given transformation matrix for the bounding sphere.
compare	Compares the bounding sphere with the given one.
operator ==	Compares the bounding sphere with the given one according to the degree of precision equal to 1.
operator !=	Bounding spheres not equal comparison operator.
expand	Expands the current bounding sphere for including given point.
expandRadius	Expands the radius of the bounding sphere.
inside	Checks if the given point is inside the current bounding sphere.
insideValid	Checks if the given point is inside the current bounding sphere.
insideAll	Checks if the whole specified bounding sphere is inside the current bounding sphere.
insideAllValid	Checks if the whole given bounding sphere is inside the current bounding sphere.
rayIntersection	Checks for an intersection of a ray with the current bounding sphere.
getIntersection	Checks for an intersection of a line with the current bounding sphere.
rayIntersectionValid	Checks for an intersection of a ray with the current bounding sphere.
getIntersectionValid	Checks for an intersection of a line with the current bounding sphere.
distance	Returns the distance from the origin of coordinates to the closest point of the current bounding sphere.
distanceValid	Returns the distance from the origin of coordinates to the closest point of the current bounding sphere.
isCameraVisible	Returns a value indicating if the bounding sphere is within the camera visibility distance.
operator *	Returns the bounding sphere with the specified transformation matrix applied.

WorldBoundSphere Class

Members

static WorldBoundSpherePtr create ( ) #

Constructor. Creates an empty bounding sphere.

WorldBoundSphere ( double x, double y, double z, double radius ) #

Constructor. Initialization by the coordinates of the center and radius of the bounding sphere.

Arguments

double x - X-coordinate of the center of the bounding sphere.
double y - Y-coordinate of the center of the bounding sphere.
double z - Z-coordinate of the center of the bounding sphere.
double radius - Radius of the bounding sphere.

WorldBoundSphere ( Math::Vec3 & center, Math::Scalar radius ) #

Constructor. Initializes bounding sphere by the center and radius of the bounding sphere.

Arguments

Math::Vec3 & center - The bounding sphere center.
Math::Scalar radius - The bounding sphere radius.

WorldBoundSphere ( const dvec3 * points, int num_points, bool optimal ) #

Constructor. Initialization by the vector of points.

Arguments

const dvec3 * points - Vector of points.
int num_points - Number of points in the vector.
bool optimal - Flag defining if the optimal sphere should be used. If false, the sphere will be expanded to include all given points.

WorldBoundSphere ( const WorldBoundSphere & bs ) #

Constructor. Initializes by given bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.

WorldBoundSphere ( const WorldBoundSphere & bs, const Math::Mat4 & transform ) #

Initialization by the bounding sphere and setting the given transformation matrix to the new bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.
const Math::Mat4 & transform - Transformation matrix.

WorldBoundSphere ( const BoundSphere & bs ) #

Constructor. Initializes by given bounding sphere.

Arguments

const BoundSphere & bs - The bounding sphere.

WorldBoundSphere ( const BoundSphere & bs, const Math::Mat4 & transform ) #

Initialization by the bounding sphere and setting the given transformation matrix to the new bounding sphere.

Arguments

const BoundSphere & bs - The bounding sphere.
const Math::Mat4 & transform - Transformation matrix.

WorldBoundSphere ( const WorldBoundBox & bb ) #

Constructor. Initializes by given bounding box.

Arguments

const WorldBoundBox & bb - The bounding box.

WorldBoundSphere & operator= ( const WorldBoundSphere & bs ) #

Assignment operator for the bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.

void clear ( ) #

Clears the bounding sphere.

void setCenter ( const dvec3 & center ) #

Sets the specified coordinates for the center of the bounding sphere.

Arguments

const dvec3 & center - Coordinates of the center of the bounding sphere.

void set ( const Math::Vec3 & center, Math::Scalar radius ) #

Sets the bounding sphere by its center and radius.

Arguments

const Math::Vec3 & center - The bounding sphere center.
Math::Scalar radius - The bounding sphere radius.

void set ( double x_, double y_, double z_, double radius_ ) #

Sets the bounding sphere by the specified coordinates of the center and radius.

Arguments

double x_ - X-coordinate of the center of the bounding sphere.
double y_ - Y-coordinate of the center of the bounding sphere.
double z_ - Z-coordinate of the center of the bounding sphere.
double radius_ - Radius of the bounding sphere.

void set ( const Math::Vec3 * points, int num_points, bool optimal ) #

Set the bounding sphere by a vector of points.

Arguments

const Math::Vec3 * points - Vector of points.
int num_points - Number of points in the vector.
bool optimal - Flag defining if the optimal sphere should be used. If false, the sphere will be expanded for including all the given points.

void set ( const WorldBoundSphere & bs ) #

Sets the bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.

void set ( const WorldBoundSphere & bs, const Math::Mat4 & transform ) #

Sets the bounding sphere by a bounding sphere with a transformation matrix taken into account.

Arguments

const WorldBoundSphere & bs - The bounding sphere.
const Math::Mat4 & transform - Transformation matrix.

void set ( const BoundSphere & bs ) #

Sets the bounding sphere.

Arguments

const BoundSphere & bs - The bounding sphere.

void set ( const BoundSphere & bs, const Math::Mat4 & transform ) #

Sets the bounding sphere by a bounding sphere with a transformation matrix taken into account.

Arguments

const BoundSphere & bs - The bounding sphere.
const Math::Mat4 & transform - Transformation matrix.

void set ( const WorldBoundBox & bb ) #

Sets the bounding sphere by the bounding box.

Arguments

const WorldBoundBox & bb - The bounding box.

bool isValid ( ) const#

Checks the bounding sphere status.

Return value

true if the bounding sphere radius has a positive value.

void setTransform ( const Math::Mat4 & transform ) #

Sets the given transformation matrix for the bounding sphere.

Arguments

const Math::Mat4 & transform - Transformation matrix.

int compare ( const WorldBoundSphere & bs ) #

Compares the bounding sphere with the given one. The degree of precision is equal to 1.0e-6f.

Arguments

const WorldBoundSphere & bs - The bounding sphere to compare with.

Return value

1 if the radii and the centers of both bounding spheres are equal; otherwise, 0.

int operator== ( const WorldBoundSphere & bs ) const#

Compares the bounding sphere with the given one according to the degree of precision equal to 1.0e-6f.

Arguments

const WorldBoundSphere & bs - The bounding sphere to compare with.

Return value

1 if the radii and the centers of both bounding spheres are equal; otherwise, 0.

int operator!= ( const WorldBoundSphere & bs ) const#

Bounding spheres not equal comparison operator.

Arguments

const WorldBoundSphere & bs - The bounding sphere to compare with.

Return value

1 if the radii and the centers of both bounding spheres are not equal; otherwise, 0.

void expand ( const Math::Vec3 & point ) #

Expands the current bounding sphere for including given point.

Arguments

const Math::Vec3 & point - Point coordinates.

void expand ( const Math::Vec3 * points, int num_points ) #

Expands the current bounding sphere for including all points in the vector.

Arguments

const Math::Vec3 * points - Vector of points.
int num_points - Number of points.

void expand ( const WorldBoundSphere & bs ) #

Expands the current bounding sphere for including given bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.

void expand ( const WorldBoundBox & bb ) #

Expands the current bounding sphere for including given bounding box.

Arguments

const WorldBoundBox & bb - The bounding box.

void expandRadius ( const Math::Vec3 & point ) #

Expands the radius of the bounding sphere.Expands the radius of the bounding sphere.

Source code (C++)

float r = length(center - point);
if (center.w < r)
	radius = r;

Arguments

const Math::Vec3 & point - Point coordinates setting the end point of radius.

void expandRadius ( const Math::Vec3 * points, int num_points ) #

Expands the radius of the current bounding sphere for including all points in the vector.

Arguments

const Math::Vec3 * points - Vector of points.
int num_points - Number of points.

void expandRadius ( const WorldBoundSphere & bs ) #

Expands the radius of the bounding sphere by using the radius of the given bounding sphere.

Source code (C++)

double r = length(bs.center - center) + bs.radius;
if (radius < r)
	radius = r;

Arguments

const WorldBoundSphere & bs - Bounding sphere.

void expandRadius ( const BoundBox & bb ) #

Expands the radius of the bounding sphere by using the max and min points of the given bounding box.

Arguments

const BoundBox & bb - Bounding box.

int inside ( const Math::Vec3 & point ) const#

Checks if the given point is inside the current bounding sphere.

Arguments

const Math::Vec3 & point - Point coordinates.

Return value

1 if the given point is inside the bounding sphere; otherwise, 0.

int inside ( const Math::Vec3 & point, Math::Scalar radius ) const#

Checks if the sphere is inside the bounding sphere.

Arguments

const Math::Vec3 & point - The coordinates of the center of the sphere .
Math::Scalar radius - The sphere radius.

Return value

1 if the sphere is inside the bounding sphere; otherwise, 0.

int inside ( const Math::Vec3 & min, const Math::Vec3 & max ) const#

Checks if the box is inside the bounding sphere.

Arguments

const Math::Vec3 & min - The box minimum coordinates.
const Math::Vec3 & max - The box maximum coordinates.

Return value

1 if the box is inside the bounding sphere; otherwise, 0.

int inside ( const WorldBoundSphere & bs ) const#

Checks if the specified bounding sphere is inside the current bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.

Return value

1 if the specified bounding sphere is inside the current bounding sphere; otherwise, 0.

int inside ( const WorldBoundBox & bb ) const#

Checks if the bounding box is inside the bounding sphere.

Arguments

const WorldBoundBox & bb - The bounding box.

Return value

1 if the bounding box is inside the bounding sphere; otherwise, 0.

int insideValid ( const Math::Vec3 & point ) const#

Checks if the given point is inside the current bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const Math::Vec3 & point - Point.

Return value

1 if the given point is inside the bounding sphere; otherwise, 0.

int insideValid ( const Math::Vec3 & point, Math::Scalar radius ) const#

Checks if the given sphere is inside the current bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const Math::Vec3 & point - Cente of the sphere.
Math::Scalar radius - Radius of the sphere.

Return value

1 if the sphere is inside the bounding sphere; otherwise, 0.

int insideValid ( const Math::Vec3 & min, const Math::Vec3 & max ) const#

Checks if the box is inside the bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const Math::Vec3 & min - The box minimum coordinates.
const Math::Vec3 & max - The box maximum coordinates.

Return value

1 if the box is inside the bounding sphere; otherwise, 0.

int insideValid ( const WorldBoundSphere & bs ) const#

Checks if the bounding sphere is inside the bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const WorldBoundSphere & bs - The bounding sphere.

Return value

1 if the bounding sphere is inside the bounding sphere; otherwise, 0.

int insideValid ( const WorldBoundBox & bb ) const#

Checks if the bounding box is inside the bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const WorldBoundBox & bb - The bounding box.

Return value

1 if the bounding box is inside the bounding sphere; otherwise, 0.

int insideAll ( const WorldBoundSphere & bs ) const#

Checks if the whole specified bounding sphere is inside the current bounding sphere.

Arguments

const WorldBoundSphere & bs - The bounding sphere.

Return value

1 if the whole specified sphere is inside the current bounding sphere; otherwise, 0.

int insideAll ( const WorldBoundBox & bb ) const#

Checks if the whole bounding box is inside the bounding sphere.

Arguments

const WorldBoundBox & bb - The bounding box.

Return value

1 if the whole box is inside the bounding sphere; otherwise, 0.

int insideAllValid ( const WorldBoundSphere & bs ) const#

Checks if the whole given bounding sphere is inside the current bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const WorldBoundSphere & bs - Bounding sphere.

Return value

1 if the whole bounding sphere is inside the bounding sphere; otherwise, 0.

int insideAllValid ( const WorldBoundBox & bb ) const#

Checks if the whole given bounding box is inside the current bounding sphere.

NoticeThe method doesn't check if the bounding sphere is valid (has a positive radius).

Arguments

const WorldBoundBox & bb - Bounding box.

Return value

1 if the whole bounding box is inside the bounding sphere; otherwise, 0.

bool rayIntersection ( const Math::Vec3 & point, const Math::Vec3 & direction ) const#

Checks for an intersection of a ray with the current bounding sphere.

Arguments

const Math::Vec3 & point - The starting point of the ray.
const Math::Vec3 & direction - The direction vector of the ray.

Return value

true if an intersection has occurred; otherwise, false.

bool getIntersection ( const Math::Vec3 & p0, const Math::Vec3 & p1 ) const#

Checks for an intersection of a line with the current bounding sphere.

Arguments

const Math::Vec3 & p0 - The starting point of the line.
const Math::Vec3 & p1 - The ending point of the line.

Return value

true if an intersection has occurred; otherwise, false.

bool rayIntersectionValid ( const Math::Vec3 & point, const Math::Vec3 & direction ) const#

Checks for an intersection of a ray with the current bounding sphere.

NoticeThis method doesn't check if the current bounding sphere is valid (has a positive radius).

Arguments

const Math::Vec3 & point - The starting point of the ray.
const Math::Vec3 & direction - The direction vector of the ray.

Return value

true if an intersection has occurred; otherwise, false.

bool getIntersectionValid ( const Math::Vec3 & p0, const Math::Vec3 & p1 ) const#

Checks for an intersection of a line with the current bounding sphere.

NoticeThis method doesn't check if the current bounding sphere is valid (has a positive radius).

Arguments

const Math::Vec3 & p0 - The starting point of the line.
const Math::Vec3 & p1 - The ending point of the line.

Return value

true if an intersection has occurred; otherwise, false.

Math::Scalar distance ( ) const#

Returns the distance from the origin of coordinates to the closest point of the current bounding sphere.

Return value

Distance from the origin, in units.

Math::Scalar distance ( const Math::Vec3 & point ) const#

Returns the distance from the given point to the closest point of the current bounding sphere.

Arguments

const Math::Vec3 & point - Coordinates of the point.

Return value

Distance from the point, in units.

Math::Scalar distanceValid ( ) const#

Returns the distance from the origin of coordinates to the closest point of the current bounding sphere.

Return value

Distance from the origin, in units.

Math::Scalar distanceValid ( const Math::Vec3 & point ) const#

Returns the distance from the given point to the closest point of the current bounding sphere.

Arguments

const Math::Vec3 & point - Point

Return value

Distance from the point, in units.

bool isCameraVisible ( const Math::Vec3 & camera, Math::Scalar min_distance, Math::Scalar max_distance ) const#

Returns a value indicating if the bounding sphere is within the camera visibility distance.

Arguments

const Math::Vec3 & camera - Coordinates of the camera position.
Math::Scalar min_distance - Minimum visibility distance, in meters.
Math::Scalar max_distance - Maximum visibility distance, in meters.

Return value

true if the bounding sphere is within the camera visibility distance; otherwise, false.

WorldBoundSphere operator* ( const dmat4 & m, const WorldBoundSphere & bs ) #

Returns the bounding sphere with the specified transformation matrix applied.

Arguments

const dmat4 & m - Transform matrix.
const WorldBoundSphere & bs - The bounding sphere.

Return value

The bounding sphere with the specified transform.

Last update: 2024-12-13

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Unigine::WorldBoundSphere Struct

In This Article:

功能列表:

WorldBoundSphere Class

Members

static WorldBoundSpherePtr create ( ) #

WorldBoundSphere ( double x, double y, double z, double radius ) #

Arguments

WorldBoundSphere ( Math::Vec3 & center, Math::Scalar radius ) #

Arguments

WorldBoundSphere ( const dvec3 * points, int num_points, bool optimal ) #

Arguments

WorldBoundSphere ( const WorldBoundSphere & bs ) #

Arguments

WorldBoundSphere ( const WorldBoundSphere & bs, const Math::Mat4 & transform ) #

Arguments

WorldBoundSphere ( const BoundSphere & bs ) #

Arguments

WorldBoundSphere ( const BoundSphere & bs, const Math::Mat4 & transform ) #

Arguments

WorldBoundSphere ( const WorldBoundBox & bb ) #

Arguments

WorldBoundSphere & operator= ( const WorldBoundSphere & bs ) #

Arguments

void clear ( ) #

void setCenter ( const dvec3 & center ) #

Arguments

void set ( const Math::Vec3 & center, Math::Scalar radius ) #

Arguments

void set ( double x_, double y_, double z_, double radius_ ) #

Arguments

void set ( const Math::Vec3 * points, int num_points, bool optimal ) #

Arguments

void set ( const WorldBoundSphere & bs ) #

Arguments

void set ( const WorldBoundSphere & bs, const Math::Mat4 & transform ) #

Arguments

void set ( const BoundSphere & bs ) #

Arguments

void set ( const BoundSphere & bs, const Math::Mat4 & transform ) #

Arguments

void set ( const WorldBoundBox & bb ) #

Arguments

bool isValid ( ) const#

Return value

void setTransform ( const Math::Mat4 & transform ) #

Arguments

int compare ( const WorldBoundSphere & bs ) #

Arguments

Return value

int operator== ( const WorldBoundSphere & bs ) const#

Arguments

Return value

int operator!= ( const WorldBoundSphere & bs ) const#

Arguments

Return value

void expand ( const Math::Vec3 & point ) #

Arguments

void expand ( const Math::Vec3 * points, int num_points ) #

Arguments

void expand ( const WorldBoundSphere & bs ) #

Arguments

void expand ( const WorldBoundBox & bb ) #

Arguments

void expandRadius ( const Math::Vec3 & point ) #

Arguments

void expandRadius ( const Math::Vec3 * points, int num_points ) #

Arguments

void expandRadius ( const WorldBoundSphere & bs ) #

Arguments

void expandRadius ( const BoundBox & bb ) #

Arguments

int inside ( const Math::Vec3 & point ) const#

Arguments

Return value

int inside ( const Math::Vec3 & point, Math::Scalar radius ) const#

Arguments

Return value

int inside ( const Math::Vec3 & min, const Math::Vec3 & max ) const#

Arguments