SbBox2f (3)

Public Member Functions

SbBox2f (void)

SbBox2f (float xmin, float ymin, float xmax, float ymax)

SbBox2f (const SbVec2f &minpoint, const SbVec2f &maxpoint)

SbBox2f (const SbBox2d &box)

SbBox2f (const SbBox2s &box)

SbBox2f (const SbBox2i32 &box)

SbBox2f & setBounds (float xmin, float ymin, float xmax, float ymax)

SbBox2f & setBounds (const SbVec2f &minpoint, const SbVec2f &maxpoint)

SbBox2f & setBounds (const SbBox2d &box)

SbBox2f & setBounds (const SbBox2s &box)

SbBox2f & setBounds (const SbBox2i32 &box)

void getBounds (float &xmin, float &ymin, float &xmax, float &ymax) const

void getBounds (SbVec2f &minpoint, SbVec2f &maxpoint) const

const SbVec2f & getMin (void) const

SbVec2f & getMin (void)

const SbVec2f & getMax (void) const

SbVec2f & getMax (void)

void extendBy (const SbVec2f &point)

void extendBy (const SbBox2f &box)

void makeEmpty (void)

SbBool isEmpty (void) const

SbBool hasArea (void) const

SbBool intersect (const SbVec2f &point) const

SbBool intersect (const SbBox2f &box) const

SbVec2f getClosestPoint (const SbVec2f &point) const

SbVec2f getCenter (void) const

void getOrigin (float &originX, float &originY) const

void getSize (float &sizeX, float &sizeY) const

SbVec2f getSize (void) const

float getAspectRatio (void) const

Protected Attributes

SbVec2f minpt

SbVec2f maxpt

Related Functions

(Note that these are not member functions.) int operator== (const SbBox2f &b1, const SbBox2f &b2)

int operator!= (const SbBox2f &b1, const SbBox2f &b2)

The SbBox2f class is a 2 dimensional box with floating point corner coordinates.

This box class is used by many other classes in Coin for data exchange and storage. It provides two box corners with floating point coordinates, which is among other things useful for representing screen or canvas dimensions in normalized coordinates.

See also:

SbBox2s, SbBox2d, SbBox3s, SbBox3f, SbBox3d, SbXfBox3f.

SbBox2f::SbBox2f (void)\fC [inline]\fP

The default constructor makes an empty box.

SbBox2f::SbBox2f (floatxmin, floatymin, floatxmax, floatymax)\fC [inline]\fP

Constructs a box with the given corners.

xmin should be less than xmax and ymin should be less than ymax if you want to make a valid box.

SbBox2f::SbBox2f (const \fBSbVec2f\fP &min, const \fBSbVec2f\fP &max)\fC [inline]\fP

Constructs a box with the given lower left and upper right corners.

The coordinates of min should be less than the coordinates of max if you want to make a valid box.

\fBSbBox2f\fP & SbBox2f::setBounds (floatxmin, floatymin, floatxmax, floatymax)\fC [inline]\fP

Reset the boundaries of the box.

xmin should be less than xmax and ymin should be less than ymax if you want to make a valid box.

Returns reference to self.

See also:

getBounds().

\fBSbBox2f\fP & SbBox2f::setBounds (const \fBSbVec2f\fP &min, const \fBSbVec2f\fP &max)\fC [inline]\fP

Reset the boundaries of the box with the given corners.

The coordinates of min should be less than the coordinates of max if you want to make a valid box.

Returns reference to self.

See also:

getBounds().

\fBSbBox2f\fP & SbBox2f::setBounds (const \fBSbBox2d\fP &box)

Reset the boundaries of the box to the boundaries of the given box.

Returns reference to self.

See also:

getBounds()

\fBSbBox2f\fP & SbBox2f::setBounds (const \fBSbBox2s\fP &box)

Reset the boundaries of the box to the boundaries of the given box.

Returns reference to self.

See also:

getBounds()

\fBSbBox2f\fP & SbBox2f::setBounds (const SbBox2i32 &box)

Reset the boundaries of the box to the boundaries of the given box.

Returns reference to self.

See also:

getBounds()

void SbBox2f::getBounds (float &xmin, float &ymin, float &xmax, float &ymax) const\fC [inline]\fP

Returns the box boundaries.

See also:

setBounds(), getMin(), getMax().

void SbBox2f::getBounds (\fBSbVec2f\fP &min, \fBSbVec2f\fP &max) const\fC [inline]\fP

Returns the box corner points.

See also:

setBounds(), getMin(), getMax().

const \fBSbVec2f\fP & SbBox2f::getMin (void) const\fC [inline]\fP

Returns the lower left corner of the box.

See also:

getOrigin(), getMax().

\fBSbVec2f\fP & SbBox2f::getMin (void)\fC [inline]\fP

Returns a modifiable reference ot the lower left corner of the box.

See also:

getOrigin(), getMax().

const \fBSbVec2f\fP & SbBox2f::getMax (void) const\fC [inline]\fP

Returns the upper right corner of the box.

See also:

getMin().

void SbBox2f::extendBy (const \fBSbVec2f\fP &point)

Extend the boundaries of the box by the given point, i.e. make the box fit around the point if it isn't already situated within it.

void SbBox2f::extendBy (const \fBSbBox2f\fP &box)

Extend the boundaries of the box by the given box parameter. This is equal to calling the above method twice with the corner points.

void SbBox2f::makeEmpty (void)

Marks this as an empty box.

See also:

isEmpty().

SbBool SbBox2f::isEmpty (void) const\fC [inline]\fP

Check if this has been marked as an empty box.

See also:

makeEmpty().

SbBool SbBox2f::hasArea (void) const\fC [inline]\fP

Check if the box has 'positive' area, i.e. the lower left corner is actually lower and more to the left than the other corner point.

SbBool SbBox2f::intersect (const \fBSbVec2f\fP &point) const

Check if point lies within the boundaries of this box.

SbBool SbBox2f::intersect (const \fBSbBox2f\fP &box) const

Check if box lies wholly or partly within the boundaries of this box.

\fBSbVec2f\fP SbBox2f::getClosestPoint (const \fBSbVec2f\fP &p) const

Return the point on the box closest to the given point p.

\fBSbVec2f\fP SbBox2f::getCenter (void) const\fC [inline]\fP

Returns the center point of the box.

void SbBox2f::getOrigin (float &originX, float &originY) const\fC [inline]\fP

Returns the coordinates of the box origin (i.e. the lower left corner).

See also:

getMin().

void SbBox2f::getSize (float &sizeX, float &sizeY) const\fC [inline]\fP

Returns width and height of box.

float SbBox2f::getAspectRatio (void) const\fC [inline]\fP

Returns aspect ratio of box, which is defined as box width divided on box height.

int operator== (const \fBSbBox2f\fP &b1, const \fBSbBox2f\fP &b2)\fC [related]\fP

Check b1 and b2 for equality.

int operator!= (const \fBSbBox2f\fP &b1, const \fBSbBox2f\fP &b2)\fC [related]\fP

Check b1 and b2 for inequality.

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