csBox

In file include/csgeom/math2d.h:

class csBox

A bounding box in 2D space

Public Methods
void AddBoundingVertex(const csVector2& v): Add a new vertex and recalculate the bounding box.
void AddBoundingVertex(float x, float y): Add a new vertex and recalculate the bounding box.
void AddBoundingVertexSmart(float x, float y): Add a new vertex and recalculate the bounding box
void AddBoundingVertexSmart(const csVector2& v): Add a new vertex and recalculate the bounding box.
csBox(float x1, float y1, float x2, float y2): Initialize this box with the given values.
csBox(): Initialize this box to empty.
csBox(const csVector2& v): Initialize this box with one point.
bool Empty(): Test if this box is empty.
bool In(float x, float y): Test if the given coordinate is in this box.
float MaxX()
float MaxY()
float MinX()
float MinY()
friend bool operator!= (const csBox& box1, const csBox& box2): Tests if two bounding boxes are unequal.
friend csBox operator* (const csBox& box1, const csBox& box2): Compute the intersection of two bounding boxes.
csBox& operator*= (const csBox& box): Compute the intersection of two bounding boxes.
friend csBox operator+ (const csBox& box1, const csBox& box2): Compute the union of two bounding boxes.
friend csBox operator+ (const csBox& box, const csVector2& point): Compute the union of a bounding box and a point.
csBox& operator+= (const csBox& box): Compute the union of two bounding boxes.
csBox& operator+= (const csVector2& point): Compute the union of a point with this bounding box.
friend bool operator< (const csVector2& point, const csBox& box): Tests if a point is contained in a box.
friend bool operator< (const csBox& box1, const csBox& box2): Tests if box1 is a subset of box2.
friend bool operator== (const csBox& box1, const csBox& box2): Tests if two bounding boxes are equal.
friend bool operator> (const csBox& box1, const csBox& box2): Tests if box1 is a superset of box2.
bool Overlap(const csBox& box): Test if this box overlaps with the given box.
void Set(float x1, float y1, float x2, float y2): Sets the bounds of the box with the given values.
void StartBoundingBox(csVector2& v): Initialize this box to one vertex.
void StartBoundingBox(): Initialize this box to empty.

Public
: constructors were listed at the top of the file, rather than here, the
: -----
: Maintenance Note: The csBox constructors and Set() appear at this point
: in the file, rather than earlier, in order to appease the OpenStep 4.2
: compiler. Specifically, the problem is that the compiler botches code
: generation if an unseen method (which is later declared inline) is
: called from within another inline method. For instance, if the
: -----
: compiler would see calls to Empty() and StartBoundingBox() before seeing
: declarations for them. In such a situation, the buggy compiler
: generated a broken object file. The simple work-around of textually
: reorganizing the file ensures that the declarations for Empty() and
: StartBoundingBox() are seen before they are called.

Protected Fields
float maxx: The bottom-right x coordinate of the bounding box.
float maxy: The bottom-right y coordinate of the bounding box.
float minx: The top-left x coordinate of the bounding box.
float miny: The top-left y coordinate of the bounding box.

Documentation

A bounding box in 2D space. In order to operate correctly, this bounding box assumes that all values entered or compared against lie within the range (-CS_BOUNDINGBOX_MAXVALUE, CS_BOUNDINGBOX_MAXVALUE). It is not recommended to use points outside of this range.