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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. More...
#include <Inventor/SbBox.h>
Public Member Functions | |
SbBox2f (void) | |
SbBox2f (float xmin, float ymin, float xmax, float ymax) | |
SbBox2f (const SbVec2f &min, const SbVec2f &max) | |
SbBox2f (const SbBox2d &box) | |
SbBox2f (const SbBox2s &box) | |
SbBox2f (const SbBox2i32 &box) | |
~SbBox2f (void) | |
void | setBounds (float xmin, float ymin, float xmax, float ymax) |
void | setBounds (const SbVec2f &min, const SbVec2f &max) |
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 &min, SbVec2f &max) 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 &p) const |
SbVec2f | getCenter (void) const |
void | getOrigin (float &x0, float &y0) const |
void | getSize (float &w, float &h) const |
float | getAspectRatio (void) const |
Friends | |
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.
SbBox2f::SbBox2f | ( | void | ) |
The default constructor makes an empty box.
References makeEmpty().
SbBox2f::SbBox2f | ( | float | xmin, |
float | ymin, | ||
float | xmax, | ||
float | ymax | ||
) |
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.
References setBounds().
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.
References setBounds().
SbBox2f::SbBox2f | ( | const SbBox2d & | box | ) | [inline, explicit] |
Constructs a box with coordinates from box, converting the coordinates to floating point values
SbBox2f::SbBox2f | ( | const SbBox2s & | box | ) | [inline, explicit] |
Constructs a box with coordinates from box, converting the coordinates to floating point values
SbBox2f::SbBox2f | ( | const SbBox2i32 & | box | ) | [inline, explicit] |
Constructs a box with coordinates from box, converting the coordinates to floating point values
SbBox2f::~SbBox2f | ( | void | ) |
Destructor.
void SbBox2f::setBounds | ( | float | xmin, |
float | ymin, | ||
float | xmax, | ||
float | ymax | ||
) |
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.
References SoDebugError::postWarning(), and SbVec2f::setValue().
Referenced by SbBox2f().
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.
References SoDebugError::postWarning().
Reset the boundaries of the box to the boundaries of the given box.
Returns reference to self.
References SbBox2d::getMax(), SbBox2d::getMin(), SbBox2d::isEmpty(), makeEmpty(), and SbVec2f::setValue().
Reset the boundaries of the box to the boundaries of the given box.
Returns reference to self.
References SbBox2s::getMax(), SbBox2s::getMin(), SbBox2s::isEmpty(), makeEmpty(), and SbVec2f::setValue().
Reset the boundaries of the box to the boundaries of the given box.
Returns reference to self.
References SbBox2i32::getMax(), SbBox2i32::getMin(), SbBox2i32::isEmpty(), makeEmpty(), and SbVec2f::setValue().
void SbBox2f::getBounds | ( | float & | xmin, |
float & | ymin, | ||
float & | xmax, | ||
float & | ymax | ||
) | const |
Returns the box boundaries.
References SbVec2f::getValue().
Returns the box corner points.
const SbVec2f & SbBox2f::getMin | ( | void | ) | const |
Returns the lower left corner of the box.
Referenced by extendBy(), SoGlyph::getWidth(), intersect(), SbBox2s::setBounds(), SbBox2i32::setBounds(), and SbBox2d::setBounds().
SbVec2f & SbBox2f::getMin | ( | void | ) | [inline] |
const SbVec2f & SbBox2f::getMax | ( | void | ) | const |
Returns the upper right corner of the box.
Referenced by extendBy(), SoGlyph::getWidth(), intersect(), SbBox2s::setBounds(), SbBox2i32::setBounds(), and SbBox2d::setBounds().
SbVec2f & SbBox2f::getMax | ( | void | ) | [inline] |
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.
References SbVec2f::setValue().
Referenced by extendBy(), and SoShape::getScreenSize().
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.
References extendBy(), getMax(), getMin(), and SoDebugError::postWarning().
void SbBox2f::makeEmpty | ( | void | ) |
Marks this as an empty box.
References SbVec2f::setValue().
Referenced by SoShape::getScreenSize(), SbBox2f(), and setBounds().
SbBool SbBox2f::isEmpty | ( | void | ) | const |
Check if this has been marked as an empty box.
Referenced by SbBox2s::setBounds(), SbBox2i32::setBounds(), and SbBox2d::setBounds().
SbBool SbBox2f::hasArea | ( | void | ) | const |
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 SbVec2f & | point | ) | const |
Check if point lies within the boundaries of this box.
SbBool SbBox2f::intersect | ( | const SbBox2f & | box | ) | const |
Return the point on the box closest to the given point p.
References getCenter().
SbVec2f SbBox2f::getCenter | ( | void | ) | const |
Returns the center point of the box.
Referenced by getClosestPoint().
void SbBox2f::getOrigin | ( | float & | x0, |
float & | y0 | ||
) | const |
Returns the coordinates of the box origin (i.e. the lower left corner).
void SbBox2f::getSize | ( | float & | w, |
float & | h | ||
) | const |
Returns width and height of box.
References SoDebugError::postWarning().
Referenced by SoShape::getScreenSize().
float SbBox2f::getAspectRatio | ( | void | ) | const |
Returns aspect ratio of box, which is defined as box width divided on box height.
References SoDebugError::postWarning().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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