Bbox2 is an axis aligned 2D bounding box.
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#include <Bbox2.h>
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void | treatPointForInvalidBox (const Point2 &p) |
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void | treatPointForValidBox (const Point2 &p) |
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bool | updateMaxAbs () |
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bool | bValid |
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double | maxAbsCoord |
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double | maxX |
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double | maxY |
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double | minX |
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double | minY |
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GeomTest * | pGeomTest |
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Bbox2 is an axis aligned 2D bounding box.
◆ Bbox2()
| GEOM_FADE2D::Bbox2::Bbox2 |
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GeomTest * |
pGeomTest_ = NULL | ) |
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inlineexplicit |
Constructor.
Minimum bounds are initialized to DBL_MAX. Maximum bounds are initialized to -DBL_MAX. Box is not valid yet
◆ add() [1/5]
| bool GEOM_FADE2D::Bbox2::add |
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const Bbox2 & |
other | ) |
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inline |
Add another bounding box.
Extends the 2D bounding box if required.
- Returns
- true if the bounding box changes, false otherwise
◆ add() [2/5]
| bool GEOM_FADE2D::Bbox2::add |
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const Point2 & |
p | ) |
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inline |
Add a point.
Extends the 2D bounding box if required.
- Returns
- true if the bounding box changes, false otherwise
◆ add() [3/5]
| bool GEOM_FADE2D::Bbox2::add |
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size_t |
numPoints, |
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double * |
coordinates |
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) |
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inline |
Add points.
Extends the 2D bounding box if required.
- Returns
- true if the bounding box changes, false otherwise
◆ add() [4/5]
| bool GEOM_FADE2D::Bbox2::add |
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std::vector< Point2 * >::const_iterator |
start_it, |
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std::vector< Point2 * >::const_iterator |
end_it |
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) |
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inline |
Add points.
Extends the 2D bounding box if required.
- Returns
- true if the bounding box changes, false otherwise
◆ add() [5/5]
| bool GEOM_FADE2D::Bbox2::add |
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std::vector< Point2 >::const_iterator |
start_it, |
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std::vector< Point2 >::const_iterator |
end_it |
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) |
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inline |
Add points.
Extends the 2D bounding box if required.
- Returns
- true if the bounding box changes, false otherwise
◆ doIntersect()
| bool GEOM_FADE2D::Bbox2::doIntersect |
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const Bbox2 & |
other | ) |
const |
Check intersection.
Two valid bounding boxes intersect if they share at least one point in the XY plane.
◆ doubleTheBox()
| void GEOM_FADE2D::Bbox2::doubleTheBox |
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Double the box.
Changes the bounds such that the box grows in each direction by half the previous range
◆ enlargeRanges()
| void GEOM_FADE2D::Bbox2::enlargeRanges |
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double |
factor, |
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bool |
bUseMaxRange, |
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double |
minRange |
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Enlarge the x|y-ranges of a bounding box.
This function updates minX, minY, maxX and maxY symmetrically to enlarge the x- and y-ranges of the bounding box.
- Parameters
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| factor | is the factor by which the existing ranges rangeX and rangeY shall grow. |
| bUseMaxRange | specifies if a square bounding box with side length  shall be made. |
| minRange | is a lower bound on the new ranges and it can be used to avoid a degenerate box when the pre-existing box was degenerate. |
◆ get_maxX()
| double GEOM_FADE2D::Bbox2::get_maxX |
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const |
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◆ get_maxY()
| double GEOM_FADE2D::Bbox2::get_maxY |
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const |
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◆ get_minX()
| double GEOM_FADE2D::Bbox2::get_minX |
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const |
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◆ get_minY()
| double GEOM_FADE2D::Bbox2::get_minY |
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const |
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◆ getBoundary()
| void GEOM_FADE2D::Bbox2::getBoundary |
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std::vector< Segment2 > & |
vBoundary | ) |
const |
Get boundary.
Convenience function: Returns 4 border segments
◆ getCorners()
| void GEOM_FADE2D::Bbox2::getCorners |
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std::vector< Point2 > & |
vBoxCorners | ) |
const |
Get corners.
Convenience function: Returns the 4 corners of the box
◆ getMaxCoord()
| double GEOM_FADE2D::Bbox2::getMaxCoord |
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const |
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inline |
Get maximum coordinate.
- Returns
- the largest coordinate value, i.e. max(maxX,maxY)
◆ getMaxPoint()
| Point2 GEOM_FADE2D::Bbox2::getMaxPoint |
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const |
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inline |
Get the max point.
- Returns
- the 2D corner point with the maximum coordinates
◆ getMaxRange()
| double GEOM_FADE2D::Bbox2::getMaxRange |
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const |
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◆ getMinCoord()
| double GEOM_FADE2D::Bbox2::getMinCoord |
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const |
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inline |
Get minimum coordinate.
- Returns
- the smallest coordinate value, i.e. min(minX,minY)
◆ getMinPoint()
| Point2 GEOM_FADE2D::Bbox2::getMinPoint |
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const |
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inline |
Get the min point.
- Returns
- the 2D corner point with the minimum coordinates
◆ getOffsetCorners()
| void GEOM_FADE2D::Bbox2::getOffsetCorners |
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double |
offset, |
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std::vector< Point2 > & |
vBoxCorners |
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| const |
Get offset corners.
Convenience function: Returns the 4 corners of an enlarged box. The box es enlarged by offset in each direction
◆ getRangeX()
| double GEOM_FADE2D::Bbox2::getRangeX |
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const |
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inline |
Get x-range.
- Returns
- maxX-minX
◆ getRangeY()
| double GEOM_FADE2D::Bbox2::getRangeY |
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const |
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inline |
Get y-range.
- Returns
- maxY-minY
◆ inflateIfDegenerate()
| void GEOM_FADE2D::Bbox2::inflateIfDegenerate |
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double |
val | ) |
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inline |
Inflate if Degenerate.
When only one point has been added to Bbox2 or when all points have the same x- and/or y- coordinates then Bbox2 is degenerate. This is a valid state but sometimes undesireable. The present method inflates the Bbox2 by adding /p val to maxX and/or maxY.
◆ isInBox()
| bool GEOM_FADE2D::Bbox2::isInBox |
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const Point2 & |
p | ) |
const |
Point-in-Box Test.
- Returns
- true if minX <= p.x() <=maxX and minY <= p.y() <=maxY or false otherwise.
◆ isValid()
| bool GEOM_FADE2D::Bbox2::isValid |
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const |
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inline |
Check if the bounds are valid.
The bounds are valid when at least one point has been added or when set-methods have been used to set minX<=maxX and minY<=maxY
◆ operator+()
| Bbox2 GEOM_FADE2D::Bbox2::operator+ |
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const Bbox2 & |
b | ) |
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Add a bounding box.
Extends the 2D bounding box if required.
- Returns
- the resulting bounding box
◆ reset()
| void GEOM_FADE2D::Bbox2::reset |
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inline |
Reset the bounds.
Resets the bounding box to default values
◆ intersection
Print the box.
Prints the box coordinates to stream
The documentation for this class was generated from the following file:
