SbBox3f (3)

Inherited by SbXfBox3f.

Public Member Functions

SbBox3f (void)

SbBox3f (float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)

SbBox3f (const SbVec3f &minpoint, const SbVec3f &maxpoint)

SbBox3f (const SbBox3d &box)

SbBox3f (const SbBox3s &box)

SbBox3f (const SbBox3i32 &box)

SbBox3f & setBounds (float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)

SbBox3f & setBounds (const SbVec3f &minpoint, const SbVec3f &maxpoint)

SbBox3f & setBounds (const SbBox3d &box)

SbBox3f & setBounds (const SbBox3s &box)

SbBox3f & setBounds (const SbBox3i32 &box)

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

void getBounds (SbVec3f &minpoint, SbVec3f &maxpoint) const

const SbVec3f & getMin (void) const

SbVec3f & getMin (void)

const SbVec3f & getMax (void) const

SbVec3f & getMax (void)

void extendBy (const SbVec3f &pt)

void extendBy (const SbBox3f &box)

void transform (const SbMatrix &matrix)

void makeEmpty (void)

SbBool isEmpty (void) const

SbBool hasVolume (void) const

float getVolume (void) const

SbBool intersect (const SbVec3f &pt) const

SbBool intersect (const SbBox3f &box) const

SbVec3f getClosestPoint (const SbVec3f &point) const

SbBool outside (const SbMatrix &mvp, int &cullbits) const

SbVec3f getCenter (void) const

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

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

SbVec3f getSize (void) const

void getSpan (const SbVec3f &dir, float &dmin, float &dmax) const

void print (FILE *file) const

Related Functions

(Note that these are not member functions.) int operator== (const SbBox3f &b1, const SbBox3f &b2)

int operator!= (const SbBox3f &b1, const SbBox3f &b2)

The SbBox3f class is an abstraction for an axis aligned 3 dimensional box.

This box abstraction class is used by other entities in the Coin library for data exchange and storage. It provides a representation of the defining corners of a box in 3D space, with the sides aligned with the 3 principal axes.

See also:

SbBox2s, SbBox2f, SbBox2d, SbBox3s, SbBox3d, SbXfBox3f.

SbBox3f::SbBox3f (void)\fC [inline]\fP

The default constructor makes an empty box.

SbBox3f::SbBox3f (floatminx, floatminy, floatminz, floatmaxx, floatmaxy, floatmaxz)\fC [inline]\fP

Constructs a box with the given corners.

minx should be less than maxx, miny should be less than maxy and minz should be less than maxz if you want to make a valid box.

SbBox3f::SbBox3f (const \fBSbVec3f\fP &minval, const \fBSbVec3f\fP &maxval)\fC [inline]\fP

Constructs a 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.

\fBSbBox3f\fP & SbBox3f::setBounds (floatminx, floatminy, floatminz, floatmaxx, floatmaxy, floatmaxz)\fC [inline]\fP

Reset the boundaries of the box.

minx should be less than maxx, miny should be less than maxy and minz should be less than maxz if you want to make a valid box.

Returns reference to self.

See also:

getBounds().

\fBSbBox3f\fP & SbBox3f::setBounds (const \fBSbVec3f\fP &minval, const \fBSbVec3f\fP &maxval)\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().

\fBSbBox3f\fP & SbBox3f::setBounds (const \fBSbBox3d\fP &box)

Reset the boundaries to the boundaries of the given box.

Returns reference to self.

See also:

getBounds().

\fBSbBox3f\fP & SbBox3f::setBounds (const \fBSbBox3s\fP &box)

Reset the boundaries to the boundaries of the given box.

Returns reference to self.

See also:

getBounds().

\fBSbBox3f\fP & SbBox3f::setBounds (const SbBox3i32 &box)

Reset the boundaries to the boundaries of the given box.

Returns reference to self.

See also:

getBounds().

void SbBox3f::getBounds (float &minx, float &miny, float &minz, float &maxx, float &maxy, float &maxz) const\fC [inline]\fP

Returns the box boundaries.

See also:

setBounds().

void SbBox3f::getBounds (\fBSbVec3f\fP &minobj, \fBSbVec3f\fP &maxobj) const\fC [inline]\fP

Returns the box corner points.

See also:

setBounds().

const \fBSbVec3f\fP & SbBox3f::getMin (void) const\fC [inline]\fP

Returns the minimum point. This should usually be the lower left corner point of the box.

See also:

getOrigin(), getMax().

\fBSbVec3f\fP & SbBox3f::getMin (void)\fC [inline]\fP

Returns a modifiable reference the minimum point.

const \fBSbVec3f\fP & SbBox3f::getMax (void) const\fC [inline]\fP

Returns the maximum point. This should usually be the upper right corner point of the box.

See also:

getMin().

\fBSbVec3f\fP & SbBox3f::getMax (void)\fC [inline]\fP

Returns a modifiable reference the maximum point.

void SbBox3f::extendBy (const \fBSbVec3f\fP &point)

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

void SbBox3f::extendBy (const \fBSbBox3f\fP &box)

Extend the boundaries of the box by the given box parameter. This is equal to calling extendBy() twice with the corner points.

void SbBox3f::transform (const \fBSbMatrix\fP &matrix)

Transform the box by the matrix, and change its boundaries to contain the transformed box.

Doesn't touch illegal/empty boxes.

void SbBox3f::makeEmpty (void)

Marks this as an empty box.

See also:

isEmpty().

SbBool SbBox3f::isEmpty (void) const\fC [inline]\fP

Check if this has been marked as an empty box.

See also:

makeEmpty().

SbBool SbBox3f::hasVolume (void) const\fC [inline]\fP

Check if the box has been correctly specified and by that virtue has volume.

float SbBox3f::getVolume (void) const\fC [inline]\fP

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

SbBool SbBox3f::intersect (const \fBSbVec3f\fP &point) const

Check if the given point lies within the boundaries of this box.

SbBool SbBox3f::intersect (const \fBSbBox3f\fP &box) const

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

\fBSbVec3f\fP SbBox3f::getClosestPoint (const \fBSbVec3f\fP &point) const

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

SbBool SbBox3f::outside (const \fBSbMatrix\fP &mvp, int &cullbits) const

Check if the box is outside the view volume defined by the mvp matrix. Sets cullbits according to which planes we're inside or outside. Bit 0 (0x1) is cleared when box is completely inside left and right clipping planes. Bit 1 (0x2) is cleared when box is inside top and bottom clipping planes. Bit 2 (0x4) is cleared when box is inside near and far clipping planes.

Returns TRUE if box is completely outside one of the clipping planes. FALSE otherwise.

\fBSbVec3f\fP SbBox3f::getCenter (void) const\fC [inline]\fP

Returns the center point of the box.

void SbBox3f::getOrigin (float &x0, float &y0, float &z0) const\fC [inline]\fP

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

See also:

getMin().

void SbBox3f::getSize (float &dx, float &dy, float &dz) const\fC [inline]\fP

Returns width, height and depth of box.

\fBSbVec3f\fP SbBox3f::getSize (void) const\fC [inline]\fP

Returns width, height and depth of box as a 3D vector.

Since:

Coin 3.0

void SbBox3f::getSpan (const \fBSbVec3f\fP &dir, float &dmin, float &dmax) const

Find the span of the box in the given direction (i.e. how much room in the given direction the box needs). The distance is returned as the minimum and maximum distance from origo to the closest and furthest plane defined by the direction vector and each of the box' corners. The difference between these values gives the span.

void SbBox3f::print (FILE *fp) const

Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile.

int operator== (const \fBSbBox3f\fP &b1, const \fBSbBox3f\fP &b2)\fC [related]\fP

Check b1 and b2 for equality.

int operator!= (const \fBSbBox3f\fP &b1, const \fBSbBox3f\fP &b2)\fC [related]\fP

Check b1 and b2 for inequality.

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