--- name: "SbBox2f" section: "3" platform: "linux" package: "coin" version: "1:4.0.10-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/SbBox2f" --- # SbBox2f(3) The SbBox2f class is a 2 dimensional box with floating point corner coordinates. ## NAME SbBox2f - The **SbBox2f** class is a 2 dimensional box with floating point corner coordinates. ## SYNOPSIS \#include \ ### 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 Symbols (Note that these are not member symbols.) int **operator==** (const **SbBox2f** &b1, const **SbBox2f** &b2)\ int **operator!=** (const **SbBox2f** &b1, const **SbBox2f** &b2)\ ## Detailed Description 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**. ## Constructor & Destructor Documentation ### SbBox2f::SbBox2f (void ) \[inline\] The default constructor makes an empty box. ### SbBox2f::SbBox2f (float xmin, float ymin, float xmax, float ymax) \[inline\] 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 SbVec2f & min, const SbVec2f & max) \[inline\] 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. ### SbBox2f::SbBox2f (const SbBox2d & box) \[inline\], \[explicit\] Constructs an **SbBox2f** instance from the value in an **SbBox2d** instance. **Since** Coin 2.5 ### SbBox2f::SbBox2f (const SbBox2s & box) \[inline\], \[explicit\] Constructs an **SbBox2f** instance from the value in an **SbBox2s** instance. **Since** Coin 2.5 ### SbBox2f::SbBox2f (const SbBox2i32 & box) \[inline\], \[explicit\] Constructs an **SbBox2f** instance from the value in an **SbBox2i32** instance. **Since** Coin 2.5 ## Member Function Documentation ### SbBox2f & SbBox2f::setBounds (float xmin, float ymin, float xmax, float ymax) \[inline\] 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()**. ### SbBox2f & SbBox2f::setBounds (const SbVec2f & min, const SbVec2f & max) \[inline\] 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()**. ### SbBox2f & SbBox2f::setBounds (const SbBox2d & box) Reset the boundaries of the box to the boundaries of the given *box*. Returns reference to self. **See also** **getBounds()** ### SbBox2f & SbBox2f::setBounds (const SbBox2s & box) Reset the boundaries of the box to the boundaries of the given *box*. Returns reference to self. **See also** **getBounds()** ### SbBox2f & 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 \[inline\] Returns the box boundaries. **See also** **setBounds()**, **getMin()**, **getMax()**. ### void SbBox2f::getBounds (SbVec2f & min, SbVec2f & max) const \[inline\] Returns the box corner points. **See also** **setBounds()**, **getMin()**, **getMax()**. ### const SbVec2f & SbBox2f::getMin (void ) const \[inline\] Returns the lower left corner of the box. **See also** **getOrigin()**, **getMax()**. ### SbVec2f & SbBox2f::getMin (void ) \[inline\] Returns a modifiable reference to the lower left corner of the box. **See also** **getOrigin()**, **getMax()**. ### const SbVec2f & SbBox2f::getMax (void ) const \[inline\] Returns the upper right corner of the box. **See also** **getMin()**. ### SbVec2f & SbBox2f::getMax (void ) \[inline\] Returns the upper right corner of the box. **See also** **getMin()**. ### void SbBox2f::extendBy (const SbVec2f & 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 SbBox2f & 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 \[inline\] Check if this has been marked as an empty box. **See also** **makeEmpty()**. ### SbBool SbBox2f::hasArea (void ) const \[inline\] Check if the box has been correctly specified and by that virtue has "positive" area, i.e. all coordinates of its upper right corner (the maximum point) are greater than the corresponding coordinates of its lower left corner (the minimum point). ### SbBool SbBox2f::intersect (const SbVec2f & point) const Check if *point* lies within the boundaries of this box. ### SbBool SbBox2f::intersect (const SbBox2f & box) const Check if *box* lies entirely or partially within the boundaries of this box. ### SbVec2f SbBox2f::getClosestPoint (const SbVec2f & point) const Return the point on the box closest to the given point *p*. If the given point equals the center, the center point on the positive X-side is returned. ### SbVec2f SbBox2f::getCenter (void ) const \[inline\] Returns the center point of the box. ### void SbBox2f::getOrigin (float & originX, float & originY) const \[inline\] Returns the coordinates of the box origin (i.e. the lower left corner). **See also** **getMin()**. ### void SbBox2f::getSize (float & sizeX, float & sizeY) const \[inline\] Returns width and height of box. ### SbVec2f SbBox2f::getSize (void ) const \[inline\] Returns width and height of box as a 2D vector. **Since** Coin 3.0 ### float SbBox2f::getAspectRatio (void ) const \[inline\] Returns aspect ratio of box, which is defined as box width divided on box height. ## Friends And Related Symbol Documentation ### int operator== (const SbBox2f & b1, const SbBox2f & b2) \[related\] Check *b1* and *b2* for equality. ### int operator!= (const SbBox2f & b1, const SbBox2f & b2) \[related\] Check *b1* and *b2* for inequality. ## Author Generated automatically by Doxygen for Coin from the source code.