BoundSphere Class

BoundSphere Class

Members

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BoundSphere ( ) #

Constructor. Creates an empty bounding sphere.

BoundSphere ( vec3 center, float radius ) #

Initialization by the center and radius of the bounding sphere.

Arguments

• vec3 center - The bounding sphere center.
• float radius - The bounding sphere radius.

BoundSphere ( vec3[] points, int optimal ) #

Initialization by the array of points.

Arguments

• vec3[] points - Array of points.
• int optimal - Flag defining if the optimal sphere should be used. If 0, the sphere will be expanded for including all the given points.

BoundSphere ( BoundSphere bs ) #

Initialization by the bounding sphere.

Arguments

• BoundSphere bs - The bounding sphere.

BoundSphere ( BoundSphere bs, mat4 transform ) #

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

Arguments

• BoundSphere bs - The bounding sphere.
• mat4 transform - Transformation matrix.

void clear ( ) #

Clears the bounding sphere.

void set ( vec3 center, float radius ) #

Sets the bounding sphere by its center and radius.

Arguments

• vec3 center - Center of the bounding sphere.
• float radius - Radius of the bounding sphere.

void set ( vec3[] points, int optimal ) #

Set the bounding sphere by an array of points.

Arguments

• vec3[] points - Array of points.
• int optimal - Flag defining if the optimal sphere should be used. If 0, the sphere will be expanded for including all the given points.

void set ( BoundSphere bs ) #

Sets the bounding sphere.

Arguments

• BoundSphere bs - Bounding sphere.

void set ( BoundSphere bs, mat4 transform ) #

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

Arguments

• BoundSphere bs - Bounding sphere.
• mat4 transform - Transformation matrix.

void set ( BoundBox bb ) #

Sets the bounding sphere by the bounding box.

Arguments

• BoundBox bb - Bounding box.

void setTransform ( mat4 transform ) #

Sets the given transformation matrix to bounding sphere.

Arguments

• mat4 transform - Transformation matrix.

void setTransform ( dmat4 transform ) #

Sets the given transformation matrix to bounding sphere.

Arguments

• dmat4 transform - Transformation matrix.

int compare ( BoundSphere bs ) #

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

Arguments

• BoundSphere bs - The bounding sphere to compare with.

Return value

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

void expand ( vec3 point ) #

Expands the current bounding sphere to include the given point.

Arguments

• vec3 point - Coordinates of the point.

void expand ( vec3[] points ) #

Expands the current bounding sphere to include the given points.

Arguments

• vec3[] points - Array of points.

void expand ( BoundSphere bs ) #

Expands the current bounding sphere to include the given bounding sphere.

Arguments

• BoundSphere bs - Bounding sphere to be included.

void expand ( BoundBox bb ) #

Expands the current bounding sphere to include the given bounding box.

Arguments

• BoundBox bb - Bounding box to be included.

void expandRadius ( vec3 point ) #

Expands the radius of the bounding sphere.

Arguments

• vec3 point - Point coordinates setting the end point of radius.

void expandRadius ( vec3[] points ) #

Expands the radius of the current bounding sphere to include all points of the array.

Arguments

• vec3[] points - Array of points.

void expandRadius ( BoundSphere bs ) #

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

Arguments

• BoundSphere bs - Bounding sphere.

void expandRadius ( BoundBox bb ) #

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

Arguments

• BoundBox bb - Bounding box.

int inside ( vec3 point ) #

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

Arguments

• vec3 point - Point coordinates.

Return value

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

int inside ( vec3 point, float radius ) #

Checks if the sphere is inside the bounding sphere.

Arguments

• vec3 point - Center of the sphere.
• float radius - Radius of the sphere.

Return value

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

int inside ( vec3 min, vec3 max ) #

Checks if the box is inside the bounding sphere.

Arguments

• vec3 min - The box minimum coordinates.
• vec3 max - The box maximum coordinates.

Return value

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

int inside ( BoundSphere bs ) #

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

Arguments

• BoundSphere bs - Bounding sphere.

Return value

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

int inside ( BoundBox bb ) #

Checks if the bounding box is inside the bounding sphere.

Arguments

• BoundBox bb - Bounding box.

Return value

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

int insideAll ( BoundSphere bs ) #

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

Arguments

• BoundSphere bs - Bounding sphere.

Return value

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

int insideAll ( BoundBox bb ) #

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

Arguments

• BoundBox bb - Bounding box.

Return value

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

int rayIntersection ( vec3 point, vec3 direction ) #

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

Arguments

• vec3 point - The starting point of the ray.
• vec3 direction - The direction vector of the ray.

Return value

1 if an intersection has occurred; otherwise, 0.

int getIntersection ( vec3 p0, vec3 p1 ) #

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

Arguments

• vec3 p0 - The starting point of the line.
• vec3 p1 - The ending point of the line.

Return value

1 if an intersection has occurred; otherwise, 0.

float distance ( vec3 point ) #

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

Arguments

• vec3 point - Coordinates of the point.

Return value

Distance from the point, in units.

vec3 getCenter ( ) #

Returns the bounding sphere center.

Return value

Bounding sphere center.

float getRadius ( ) #

Returns the bounding sphere radius.

Return value

The bounding sphere radius.

bool isValid ( ) #

Checks the bounding sphere status.

Return value

true if the bounding sphere radius has a positive value; otherwise, false.