WorldBoundBox Class

WorldBoundBox Class

Members

---

static WorldBoundBox ( ) #

Default constructor. Creates an empty bounding box.

WorldBoundBox ( dvec3 min, dvec3 max ) #

Constructor. Initializes new bounding box by minimum and maximum coordinates of the bounding box.

Arguments

• dvec3 min - The bounding box minimum coordinates.
• dvec3 max - The bounding box maximum coordinates.

WorldBoundBox ( WorldBoundBox bb ) #

Constructor. Initializes new bounding box by using given bounding box.

Arguments

• WorldBoundBox bb - Bounding box.

WorldBoundBox ( WorldBoundSphere bs ) #

Constructor. Initializes new bounding box by the using given bounding sphere.

Arguments

• WorldBoundSphere bs - Bounding sphere.

WorldBoundBox ( BoundBox bb, dmat4 transform ) #

Arguments

• BoundBox bb
• dmat4 transform

void clear ( ) #

Clears the bounding box.

void set ( dvec3 min, dvec3 max ) #

Sets the bounding box by its minimum and maximum coordinates.

Arguments

• dvec3 min - Minimum coordinates of the bounding box.
• dvec3 max - Maximum coordinates of the bounding box.

void set ( dvec3[] points ) #

Sets the bounding box by the coordinates of points in space to be enclosed by it.

Arguments

• dvec3[] points - Array of points to be enclosed by the bounding box.

void set ( BoundBox bb, dmat4 transform ) #

Sets the bounding box by the given bounding box with the given transformation matrix taken into account.

Arguments

• BoundBox bb - Source bounding box.
• dmat4 transform - Transformation matrix.

void set ( WorldBoundSphere bs ) #

Sets the bounding box by the bounding sphere.

Arguments

• WorldBoundSphere bs - The bounding sphere.

void set ( WorldBoundBox bb ) #

Sets the bounding box.

Arguments

• WorldBoundBox bb - The bounding box.

void setTransform ( dmat4 transform ) #

Sets the given transformation matrix to the bounding box.

Arguments

• dmat4 transform - Transformation matrix.

int compare ( WorldBoundBox bb ) #

Compares the current bounding box with the given one.

Arguments

• WorldBoundBox bb - The bounding box to compare with.

Return value

1 if the size and position of both bounding boxes are equal; otherwise, 0.

void expand ( dvec3 point ) #

Expands the current bounding box to include the given point.

Arguments

• dvec3 point - Coordinates of the point.

void expand ( dvec3[] points ) #

Expands the current bounding box to enclose all given points.

Arguments

• dvec3[] points - Array of points to be enclosed by the bounding box.

void expand ( WorldBoundSphere bs ) #

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

Arguments

• WorldBoundSphere bs - The bounding sphere.

void expand ( WorldBoundBox bb ) #

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

Arguments

• WorldBoundBox bb - The bounding box.

int inside ( dvec3 point ) #

Checks if the specified point is inside the current bounding box.

Arguments

• dvec3 point - Coordinates of the point.

Return value

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

int inside ( dvec3 point, double radius ) #

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

Arguments

• dvec3 point - The coordinates of the center of the sphere.
• double radius - The sphere radius.

Return value

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

int inside ( dvec3 min, dvec3 max ) #

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

Arguments

• dvec3 min - Minimum coordinates of the box.
• dvec3 max - Maximum coordinates of the box.

Return value

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

int inside ( WorldBoundSphere bs ) #

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

Arguments

• WorldBoundSphere bs - The bounding sphere.

Return value

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

int inside ( WorldBoundBox bb ) #

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

Arguments

• WorldBoundBox bb - The bounding box.

Return value

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

int insideAll ( WorldBoundSphere bs ) #

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

Arguments

• WorldBoundSphere bs - The bounding sphere.

Return value

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

int insideAll ( WorldBoundBox bb ) #

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

Arguments

• WorldBoundBox bb - The bounding box.

Return value

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

int insideCube ( int face, dvec3 point ) #

Checks if a face of the current bounding box is inside the cube represented by minimum and maximum coordinates of the bounding box.

Arguments

• int face - The face index from 0 to 5.
• dvec3 point - Offset.

Return value

1 if the face is inside the bounding cube; otherwise, 0.

int irayIntersectionValid ( dvec3 p, dvec3 idirection ) #

Checks for an intersection between a ray and the current bounding box. This function uses the inverse direction of the ray, which increases performance.

Arguments

• dvec3 p - Starting point of the ray.
• dvec3 idirection - Inverse direction of the ray.

Return value

1 if the given ray intersects the bounding box; otherwise, 0.

double distanceValid ( dvec3 point ) #

Returns the distance from the given point to the closest vertex of the bounding box.

Arguments

• dvec3 point - Coordinates of the point.

Return value

Distance from the given point to the closest vertex of the bounding box, in units.

bool isValid ( ) #

Checks if the bounding box coordinates are valid (minimum coordinate along the X axis is less or equal to the maximum coordinate along the X axis).

Return value

true if the bounding box minimum and maximum coordinates are valid, otherwise, false.

dvec3 getMin ( ) #

Returns the minimum coordinates of the bounding box.

Return value

Bounding box minimum coordinates.

dvec3 getMax ( ) #

Returns the maximum coordinates of the bounding box.

Return value

Bounding box maximum coordinates.

dvec3 getCenter ( ) #

Returns the center point of the current bounding box.

Return value

Center point.