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The SbBox2f class is a 2 dimensional box with floating point corner coordinates. More...
#include <Inventor/SbBox.h>
Friends | |
int | operator== (const SbBox2f &b1, const SbBox2f &b2) |
int | operator!= (const SbBox2f &b1, const SbBox2f &b2) |
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) |
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().
Constructs a box with coordinates from box, converting the coordinates to floating point values
Constructs a box with coordinates from box, converting the coordinates to floating point values
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().
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 makeEmpty(), and SbVec2f::setValue().
Reset the boundaries of the box to the boundaries of the given box.
Returns reference to self.
References makeEmpty(), and SbVec2f::setValue().
Reset the boundaries of the box to the boundaries of the given box.
Returns reference to self.
References 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.
Returns the upper right corner of the box.
Referenced by extendBy(), and SoGlyph::getWidth().
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().
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().
Marks this as an empty box.
References SbVec2f::setValue().
Referenced by SbBox2f(), setBounds(), setBounds(), and setBounds().
SbBool SbBox2f::isEmpty | ( | void | ) | const |
Check if this has been marked as an empty box.
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.
Check if point lies within the boundaries of this box.
Check if box lies wholly or partly within the boundaries of this box.
Return the point on the box closest to the given point p.
References getCenter().
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().
float SbBox2f::getAspectRatio | ( | void | ) | const |
Returns aspect ratio of box, which is defined as box width divided on box height.
References SoDebugError::postWarning().
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